@article{amm1999anngeo, author = {O. Amm and A. Pajunpää and U. Brändström}, title = {Spatial distribution of conductances and currents associated with a {N}orth-{S}outh auroral form during a multiple substorm period}, journal = {Ann.\ Geophys.}, year = 1999, volume = 17, pages = {1385--1396}, braendstroem = {amm1999anngeo}, irf = {amm1999anngeo}, referee = {amm1999anngeo}, printstatus = {preprint} }
@article{aruliah1996jgr, author = {Anasuya L. Aruliah and A. D. Farmer and David Rees and Urban Brändström}, title = {The seasonal behaviour of high-latitude thermospheric winds and ion velocities observed over one solar cycle}, journal = {J.\ Geophys.\ Res.}, year = 1996, volume = 101, number = {A7}, pages = {15701--15711}, month = {July}, braendstroem = {anasuya1996jgr}, irf = {anasuya1996jgr}, referee = {anasuya1996jgr}, printstatus = {***MISSING***} }
@article{aso1998eps, author = {Takehiko Aso and Masaki Ejiri and Akira Urashima and Hiroshi Miayoka and {\AA}ke Steen and Urban Brändström and Björn Gustavsson }, title = {First results from auroral tomography from {{ALIS}}-{J}apan multi-station observations in {M}arch 1995}, journal = {Earth Planets Space}, year = 1998, volume = 50, pages = {81--86}, alis = {aso1998eps}, irf = {aso1998eps}, braendstroem = {aso1998eps}, referee = {aso1998eps}, printstatus = {preprint} }
@inproceedings{aso1998nipr, author = {Takehiko Aso and Masaki Ejiri and Akira Urashima and Hiroshi Miyaoka and {\AA}ke Steen and Urban Brändström and Björn Gustavsson}, title = {Auroral tomography analysis of a folded arc observed at the {ALIS-JAPAN} multi-station campaign on {M}arch 26, 1995}, booktitle = {Proceedings of the NIPR Symposium on upper atmosphere Physics}, pages = {1--10}, year = 1998, volume = 11, address = {Tokyo}, month = {January}, organization = {National Institute of Polar Research}, alis = {aso1998nipr}, braendstroem = {aso1998nipr}, irf = {aso1998nipr}, referee = {aso1998nipr} }
@inproceedings{aso1999iaags, author = {Takehiko Aso and Masaki Ejiri and Akira Urashima and {\AA}ke Steen and Urban Brändström and Björn Gustavsson}, title = {Auroral tomography of {ALIS} images and related camera calibrations}, booktitle = {XXV annual European Meeting on Atmospheric Studies by Optical Methods}, pages = {49}, year = 1999, publisher = {Instituto de Astrof{\'i}sica de Andalucia, Granada, Spain}, alis = {aso1999iaags}, braendstroem = {aso1999iaags}, irf = {aso1999iaags}, printstatus = {***UNKNOWN***} }
@article{aso2000asr, author = {Takehiko Aso and {\AA}ke Steen and Urban Brändström and Björn Gustavsson and Akira Urashima and Masaki Ejiri}, title = {{ALIS} --- a state of the art optical observation network for the exploration of polar atmospheric processes}, journal = {Adv.\ Space Res.}, pages = {917--924}, year = 2000, volume = 26, number = 6, alis = {aso2000asr}, braendstroem = {aso2000asr}, irf = {aso2000asr}, referee = {aso2000asr}, printstatus = {preprint} }
@inproceedings{aso2008irf, author = {Aso, T. and B. Gustavsson and K. Tanabe and U. Brändström and T. Sergienko and I. Sandahl}, title = {A proposed {B}ayesian model on the generalized tomographic inversion of aurora using multi-instrument data}, booktitle = {Proceedings of the 33rd Annual European Meeting on Atmospheric Studies by Optical Methods}, optcrossref = {}, optkey = {}, pages = {105--111}, year = {2008}, opteditor = {}, volume = {292}, optnumber = {}, optseries = {}, optaddress = {}, optmonth = {}, optorganization = {}, publisher = {Swedish Institute of Space Physics}, optnote = {}, optannote = {}, alis = {aso2008irf}, braendstroem = {aso2008irf}, irf = {aso2008irf}, referee = {aso2008irf} }
@inproceedings{axelsson2011opa, author = {K. Axelsson and T. Sergienko and I. Sandahl and U. Brändström}, title = {{A} study on the possibility to deduce the {2D} distribution of the auroral electron precipitation from multi wavelength optical measurements with auroral imagers}, booktitle = {Secci{\'o}n Especial: 37th AMASON {\'O}ptica {P}ura y {A}plicada}, optcrossref = {}, optkey = {}, pages = {605--609}, year = {2011}, opteditor = {}, volume = {44}, number = {4}, optseries = {Opt.\ Pura Apl.}, optaddress = {}, optmonth = {}, organization = {Sociedad Espa{\~n}ola de {\'O}ptica}, optpublisher = {}, optnote = {accepted}, optannote = {}, optnote = {accepted}, alis = {axelsson2010opa}, braendstroem = {axelsson2010opa}, irf = {axelsson2010opa}, referee = {axelsson2010opa} }
@inproceedings{braendstroem1991nssr, author = {Brändström, Urban and {\AA}ke Steen}, title = {{ALIS} Station architecture}, booktitle = {Proc. NSSR Annual meeting, Klintholm Havn, M{\o}n, Denmark}, year = 1991, pages = {111--118}, organization = {Nordic Society for Space Research}, month = {November}, alis = {braendstroem1991nssr}, braendstroem = {braendstroem1991nssr}, irf = {braendstroem1991nssr}, printstatus = {printout} }
@inproceedings{braendstroem1992irf, author = {Urban Brändström and {\AA}ke Steen}, title = {Report on the {ALIS} project}, booktitle = {Proc. 19th Annual European meeting on atmospheric studies by optical methods, Kiruna, Sweden}, year = 1992, editor = {{\AA}ke Steen}, pages = {310--321}, publisher = {Swedish Institute of Space Physics}, address = {Kiruna, Sweden}, note = {{IRF} {S}cientific Report 209}, alis = {braendstroem1992irf}, braendstroem = {braendstroem1992irf}, irf = {braendstroem1992irf}, printstatus = {copy} }
@inproceedings{braendstroem1993uih, author = {Urban Brändström}, title = {Reduction and analysis of astronomical image data from the '{S}tockholm' {CCD} camera at {NOT} ({N}ordic {O}ptical {T}elescope).}, booktitle = {Reports of the {N}ordic course on astronomical image processing}, year = 1993, editor = {Juhani Huovelin}, pages = {19--26}, organization = {Observatory}, publisher = {University of Helsinki}, month = {August}, note = {Report 3/1993}, braendstroem = {braendstroem1993uih}, irf = {braendstroem1993uih}, printstatus = {printout} }
@inproceedings{braendstroem1994esa, author = {Urban Brändström and {\AA}ke Steen}, title = {{ALIS} --- {A} new ground-based facility for auroral imaging in {N}orthern {S}candinavia}, booktitle = {Proc. 11th Symposium on European rocket and ballon programmes and related research, Montreux, Switzerland.}, year = 1994, month = {March}, pages = {301-306}, organization = {European Space Agency}, note = {ESA SP-355}, alis = {braendstroem1994esa}, braendstroem = {braendstroem1994esa}, irf = {braendstroem1994esa}, printstatus = {preprint} }
@inproceedings{braendstroem1997bst, author = {Urban Brändström and {\AA}ke Steen and Björn Gustavsson and Laila Andersson and Ingemar Häggström and Assar Westman and Asta Pellinen-Wannberg and Takehiko Aso and Kari Kaila and Charles W. Carlson and David Klumpar and Cindy Catell}, title = {Preliminary results from coordinated measurements by {FAST} and groundbased optical and radar facilities, in {N}orthern {S}candinavia, during active auroral conditions}, booktitle = {Proceedings of the 24th annual European Meeting on Atmospheric Studies by Optical Methods}, pages = {41--46}, year = 1997, month = {August}, publisher = {Sentraltrykkeriet A/S Bod\o}, note = {{ISBN} 82-994583-0-7}, alis = {braendstroem1997bst}, braendstroem = {braendstroem1997bst}, irf = {braendstroem1997bst}, printstatus = {printout} }
@inproceedings{braendstroem1997bst:b, author = {Urban Brändström and {\AA}ke Steen and Björn Gustavsson and Takehiko Aso}, title = {{ALIS} --- current status, planned developement and calibration}, booktitle = {Proceedings of the 24th annual European Meeting on Atmospheric Studies by Optical Methods}, pages = {214--217}, year = 1997, month = {August}, publisher = {Sentraltrykkeriet A/S Bod\o}, note = {{ISBN} 82-994583-0-7}, alis = {braendstroem1997bst:b}, braendstroem = {braendstroem1997bst:b}, irf = {braendstroem1997bst:b}, printstatus = {printout} }
@inproceedings{braendstroem1997bst:c, author = {Urban Brändström and {\AA}ke Steen and Björn Gustavsson and David Rees and M. J. Harris}, title = {Preliminary results from a comparision of observations of thermospheric neutral wind patterns and auroral emissions}, booktitle = {Proceedings of the 24th annual European Meeting on Atmospheric Studies by Optical Methods}, pages = {37--40}, year = 1997, month = {August}, publisher = {Sentraltrykkeriet A/S Bod\o}, note = {{ISBN} 82-994583-0-7}, alis = {braendstroem1997bst:c}, braendstroem = {braendstroem1997bst:c}, irf = {braendstroem1997bst:c}, printstatus = {printout} }
@inproceedings{braendstroem1998spie, author = {Urban Brändström and {\AA}ke Steen and Peter Rydesäter and Björn Gustavsson and Takehiko Aso}, title = {{ALIS}, a multi station imaging facility with possibilities of future {VI} applications}, booktitle = {{N}inth workshop on {V}irtual {I}ntelligence / {D}ynamic neural networks}, pages = {108--114}, year = 1998, editor = {Thomas Lindbladh, Mary Lou Padget and Jason Kinser}, volume = 3728, month = {June}, organization = {{R}oyal {I}nstitute of {T}echnology, {S}tockholm, {S}weden}, publisher = {{The {I}nternational {S}ociety for {O}ptical {E}ngineering}}, note = {{ISBN} 0-8194-3202-4}, alis = {braendstroem1998spie}, braendstroem = {braendstroem1998spie}, irf = {braendstroem1998spie}, printstatus = {printout} }
@inproceedings{braendstroem1999esa, author = {B. U. E. Brändström and T. B. Leyser and {\AA}. Steen and M. T. Rietveld and B. Gustavsson and T. Aso and M. Ejiri}, title = {{ALIS} observations of heater induced airglow at high latitudes}, booktitle = {{P}roceedings 14th {ESA} {S}ymposium on {E}uropean {R}ocket and {B}alloon {P}rogrammes and {R}elated {R}esearch}, pages = 389, year = 1999, editor = {B.\ Kaldeich-Sch{\"u}rmann}, volume = {SP-437}, month = {May}, organization = {European Space Agency}, note = {{ISBN} 92-9092-748-8}, alis = {braendstroem1999esa}, braendstroem = {braendstroem1999esa}, irf = {braendstroem1999esa}, printstatus = {preprint} }
@article{braendstroem1999grl, author = {B. U. E. Brändström and T. B. Leyser and {\AA}. Steen and M. T. Rietveld and B. Gustavsson and T. Aso and M. Ejiri}, title = {Unambigous evidence of {HF} pump-enhanced airglow}, journal = {Geophys.\ Res.\ Lett.}, year = 1999, volume = 26, number = 23, pages = {3561--3564}, month = {December}, alis = {braendstroem1999grl}, alishl = {braendstroem1999grl}, braendstroem = {braendstroem1999grl}, irf = {braendstroem1999grl}, referee = {braendstroem1999grl}, printstatus = {preprint} }
@inproceedings{braendstroem2001esa, author = {Urban Brändström and Björn Gustavsson and {\AA}ke Steen and Asta Pellinen-Wannberg}, title = {{ALIS} ({A}uroral {L}arge {I}maging {S}ystem) used for optical observations of the meteor impact process}, booktitle = {{P}roceedings of the {M}eteoroids 2001 {C}onference}, pages = {331--336}, year = 2001, editor = {Barbara Warmbein}, volume = {SP-495}, optmonth = {}, organization = {European Space Agency}, note = {{ISBN} 92-9092-805-0}, alis = {braendstroem2001esa}, braendstroem = {braendstroem2001esa}, irf = {braendstroem2001esa}, printstatus = {preprint} }
@phdthesis{braendstroem2003irf, author = {Urban Brändström}, title = {The {A}uroral {L}arge {I}maging {S}ystem --- {D}esign, operation and scientific results}, school = {Swedish Institute of Space Physics}, year = 2003, address = {{K}iruna, {S}weden}, month = {October}, note = {({IRF} {S}cientific {R}eport 279), {ISBN:} 91-7305-405-4}, alis = {braendstroem2003irf}, alishl = {braendstroem2003irf}, braendstroem = {braendstroem2003irf}, irf = {braendstroem2003irf}, referee = {braendstroem2003irf}, printstatus = {printout} }
@article{braendstroem2003sgp, author = {Urban Brändström and Torbjörn Lövgren and Arne Moström and Carl-Fredrik Enell and Björn Gustavsson and Takehiko Aso and Masaki Ejiri and {\AA}ke Steen and Peter Rydesäter}, title = {Brief report on {ALIS} ({A}uroral {L}arge {I}maging {S}ystem), a new all-sky camera in {K}iruna and auroral imaging using a mini-{DV} camcorder}, journal = {Sodankyl{\"a} Geophysical publication series}, year = 2003, volume = 92, pages = {89--92}, month = {August}, alis = {braendstroem2003sgp}, braendstroem = {braendstroem2003sgp}, irf = {braendstroem2003sgp}, referee = {braendstroem2003sgp}, printstatus = {copy} }
@inproceedings{braendstroem2006ras, author = {Urban Brändström and Ingrid Sandahl and Tima Sergienko and Asta Pellinen-Wannberg and Björn Gustavsson and M. T. Rietveld and Takehiko Aso and Åke Steen}, title = {ALIS - highlights, status and future plans}, booktitle = {Physics of Auroral Phenomena}, optcrossref = {}, optkey = {}, pages = {217--220}, year = {2006}, opteditor = {}, volume = {XXIX}, optnumber = {}, series = {Annual seminar Apatity}, optaddress = {}, optmonth = {}, organization = {Kola Science Centre}, publisher = {Russian Academy of Science}, optnote = {{ISBN: 5-91137-009-3}}, optannote = {}, alis = {braendstroem2006ras}, braendstroem = {braendstroem2006ras}, irf = {braendstroem2006ras}, printstatus = {***UNKNOWN***} }
@inproceedings{braendstroeml2005esa, author = {Urban Brändström and Björn Gustavsson and Asta Pellinen-Wannberg and Ingrid Sandahl and Tima Sergienko and Åke Steen}, title = {Groundbased multi-station spectroscopic imaging with {ALIS} --- scientific highlights, project status and future projects}, booktitle = {17th {ESA} {S}ymposium on European Rocket and Balloon Programmes and Related Research}, pages = {239--244}, year = 2005, volume = {SP-590}, month = {May}, organization = {European Space Agency}, note = {{ISBN} 92-9092-901-4}, alis = {braendstroem2005esa}, braendstroem = {braendstroem2005esa}, irf = {braendstroem2005esa}, printstatus = {printout} }
@article{brandstrom2011gid, author = {B. U. E. Brändström and C.-F. Enell and O. Widell and and T. Hansson and D. Whiter and S. Mäkinen and D. Mikhaylova and K. Axelsson and F. Sigernes and N. Gulbrandsen and N. M. Schlatter and A. G. Gjendem and L. Cai and J. P. Reistad and M. Daae and T. D. Demissie and Y. L. Andalsvik and O. Roberts and S. Poluyanov and S. Chernouss}, title = {Results from the intercalibration of optical low-light calibration sources 2011}, journal = {Geosci.\ Instrum.\ Method.\ Data Syst. Discuss.}, year = {2011}, optkey = {}, optvolume = {1}, optnumber = {}, pages = {91-107}, optmonth = {}, note = {Paper in open discussion phase}, optannote = {}, url = {http://www.geosci-instrum-method-data-syst-discuss.net/1/91/2011/gid-1-91-2011.pdf}, alis = {brandstrom2011gid}, braendstroem = {brandstrom2011gid}, irf = {brandstrom2011gid}, referee = {brandstrom2011gid} }
@article{dahlgren2011anngeo, author = {{Dahlgren}, H. and {Gustavsson}, B. and {Lanchester}, B.~S. and {Ivchenko}, N. and {Br{\"a}ndstr{\"o}m}, U. and {Whiter}, D.~K. and {Sergienko}, T. and {Sandahl}, I. and {Marklund}, G.}, title = {{Energy and flux variations across thin auroral arcs}}, journal = {Ann.\ Geophys.}, year = 2011, volume = 29, pages = {1699-1712}, month = {October}, optnote = {submitted, in press?}, alis = {dahlgren2011anngeo}, braendstroem = {dahlgren2011anngeo}, irf = {dahlgren2011anngeo}, referee = {dahlgren2011anngeo}, doi = {10.5194/angeo-29-1699-2011}, adsurl = {http://adsabs.harvard.edu/abs/2011AnGeo..29.1699D}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} }
@inproceedings{eide1997esa, author = {{\AA}ge J. Eide and V. Becanovic and U. Brändström and C. Holmström and M. Larsson and Inge Morten Lillesand and Thomas Lindblad and C. S. Lindsey and {\AA}ke Steen and J. Waldemark}, title = {Pulse coupled neural network pre-processing of aurora Images}, booktitle = {{AI} Applications in Solar Terrestial Physics}, pages = {201--205}, year = 1997, volume = {WPP-148}, month = {July}, organization = {European Space Agency}, alis = {eide1997esa}, braendstroem = {eide1997esa}, irf = {eide1997esa}, printstatus = {copy} }
@inproceedings{enell1999ec, author = {Carl-Fredrik Enell and {\AA}ke Steen and Björn Gustavsson and Urban Brändström and Per Johansson and Thomas Wagner and Udo Frie{\ss} and Klaus Pfeilsticker and Ulrich Platt and Karl-Heinrich Fricke}, title = {Detection of polar stratospheric clouds at {K}iruna}, booktitle = {Air pollution report 69, {M}esoscale processes in the stratosphere}, pages = {65--68}, year = 1999, editor = {K. S. Carslaw and G. T. Amanatidis}, volume = 18912, organization = {{O}ffice for {O}fficial {P}ublications of the {E}uropean {C}ommunities}, publisher = {{E}uropean {C}ommission}, address = {{L}uxembourg}, note = {{ISBN} 92-828-4629-6}, alis = {enell1999ec}, braendstroem = {enell1999ec}, irf = {enell1999ec}, printstatus = {copy} }
@inproceedings{enell1999iaags, author = {Carl-Fredrik Enell and {\AA}ke Steen and Björn Gustavsson and Urban Brändström and Per Johansson and Thomas Wagner and Udo Frie{\ss} and Klaus Pfeilsticker and Ulrich Platt }, title = {Studies of polar stratospheric clouds occurence at {K}iruna}, booktitle = {XXV annual European Meeting on Atmospheric Studies by Optical Methods}, pages = {122--126}, year = 1999, publisher = {Instituto de Astrof{\'i}sica de Andalucia, Granada, Spain}, alis = {enell1999iaags}, braendstroem = {enell1999iaags}, irf = {enell1999iaags}, printstatus = {copy} }
@inproceedings{enell1999spie, author = {Carl-Fredrik Enell and Björn Gustavsson and {\AA}ke Steen and Urban Brändström and Peter Rydesäter and P. Johansson and T. Wagner and U. Friess and K. Pfeilsticker and U. Platt}, title = {Optical studies of polar stratospheric clouds}, booktitle = {Proceedings of {SPIE}, Satellite remote sensing of clouds and the atmosphere IV}, pages = {290--297}, year = 1999, editor = {Jaqueline E.\ Russell}, volume = 3867, month = {September}, publisher = {{The {I}nternational {S}ociety for {O}ptical {E}ngineering}}, alis = {enell1999spie}, braendstroem = {enell1999spie}, irf = {enell1999spie}, printstatus = {copy} }
@article{enell2000pce, author = {Carl-Fredrik Enell and Björn Gustavsson and {\AA}ke Steen and Urban Brändström and Peter Rydesäter}, title = {Multistatic Imaging and Optical Modelling of Nacreous Clouds}, journal = {Phys.\ Chem.\ Earth}, pages = {451--457}, year = 2000, annote = {Proceedings of the 26th Annual European Meeting on Atmospheric Studies by Optical Methods}, volume = 25, number = {5-6}, alis = {enell2000pce}, braendstroem = {enell2000pce}, irf = {enell2000pce}, referee = {enell2000pce}, printstatus = {preprint} }
@article{enell2003anngeo, author = {Carl-Fredrik Enell and Urban Brändström and Bj{\"o}rn Gustavsson and Sheila Kirkwood and Kerstin Stebel and {\AA}ke Steen}, title = {Case studies of the development of polar stratospheric clouds using bistatic imaging}, journal = {Ann.\ Geophys.}, year = 2003, volume = 21, pages = {1869--1878}, url = {http://www.copernicus.org/EGU/annales/21/1869.htm}, pdf = {http://www.cosis.net/members/onlib/request.php?file=EGU/ANG/2003/8/ang-21-1869.pdf}, alis = {enell2003anngeo}, braendstroem = {enell2003anngeo}, irf = {enell2003anngeo}, referee = {enell2003anngeo}, printstatus = {draft} }
@misc{enell2010am, author = {C.-F. Enell and B. Gustavsson and T. Sergienko and U. Br{\"a}ndstr{\"o}m and I. Sandahl}, title = {{ALIS} volume estimates of the 4278 and 5577 {{\AA}} intensities, with applications}, howpublished = {Talk, 37th Annual {European} meeting on Atmospheric Studies by Optical Methods, Valladolid, Spain}, month = {August}, year = 2010, abstract = { In this study applications of remote sensing of auroral volume emissions are investigated. Data from the Auroral Large Imaging System (ALIS) cameras at field stations in northern Sweden and Norway are used to calculate tomography-like estimates of the N2+(1N) emission at 4278~{\AA} and the O(1S) emission att 5577~{\AA}. Applications of the spectroscopic ratios include 1) estimates of electron energy spectra, which have applications in auroral theory and in estimating ionisation rates for incoherent scatter radar and ion chemistry model studies and 2) direct estimates of the chemical composition of the lower thermosphere, as the 5577 emission is excited at least partly through chemistry.}, alis = {enell2010am}, irf = {enell2010am}, braendstroem = {enell2010am} }
@misc{enell2010nordauropt, author = {Carl-Fredrik Enell and Jonas Hedin and Jacek Stegman and Georg Witt and Martin Friedrich and Werner Singer and Gerd Baumgarten and Bernd Kaifler and Ulf-Peter Hoppe and Bj{\"o}rn Gustavsson and Urban Br{\"a}ndstr{\"o}m and Mikhail Khaplanov and Antti Kero and Thomas Ulich and Esa Turunen}, title = {{Hotel} {Payload} 2 measurements of {NO}, {O} and electron density}, howpublished = {Talk, 4th NordAuropt workshop, Apatity, Russia}, month = {May}, year = 2010, abstract = {A summary of the submitted JASTP paper on HotPay2 was given at the 4th NordAuropt workshop}, pdf = {http://documents.irf.se/get_document.php?path=P2/NORDOPT/hp2JASTPsummary}, alis = {enell2010nordauropt}, irf = {enell2010nordauropt}, braendstroem = {enell2010nordauropt} }
@misc{enell2010nordauroptb, author = {Carl-Fredrik Enell and Torsten Aslaksen and Urban Br{\"a}ndstr{\"o}m and Hanna Dahlgren and Bj{\"o}rn Gustavsson and Nickolay Ivchenko and Noora Partamies and Ingrid Sandahl}, title = {A collaborative ground-based optical infrastructure for space and atmospheric studies in the Barents region}, howpublished = {Talk, 4th NordAuropt workshop, Apatity, Russia}, month = {May}, year = 2010, pdf = {http://documents.irf.se/get_document.php?path=P2/NORDOPT/OpticalInfrastructure}, alis = {enell2010nordauroptb}, irf = {enell2010nordauroptb}, braendstroem = {enell2010nordauroptb} }
@article{enell2011jastp, author = {Carl-Fredrik Enell and Jonas Hedin and Jacek Stegman and Georg Witt and Martin Friedrich and Werner Singer and Gerd Baumgarten and Bernd Kaifler and Ulf-Peter Hoppe and Bj{\"o}rn Gustavsson and Urban Br{\"a}ndstr{\"o}m and Mikhail Khaplanov and Antti Kero and Thomas Ulich and Esa Turunen}, title = {The {H}otel {P}ayload 2 campaign: {O}verview of {NO}, {O} and electron density measurements in the upper mesosphere and lower thermosphere}, journal = {J.\ Atmos.\ Solar and Terr.\ Phys.}, volume = 73, pages = {2228--2236}, year = 2011, doi = {10.1016/j.jastp.2011.01.001}, url = {http://dx.doi.org/10.1016/j.jastp.2011.01.001}, alis = {enell2011jastp}, braendstroem = {enell2011jastp}, irf = {enell2011jastp}, referee = {enell2011jastp} }
@misc{enell2011op, author = {Carl-Fredrik Enell and Noora Partamies and Sanna M{\"a}kinen and Jyrki Mattanen and Laureline Sangalli and Mika Veijonsuo and Bj{\"o}rn Gustavsson and Urban Br{\"a}ndstr{\"o}m and Torsten Aslaksen}, title = {{EMCCD} cameras for auroral imaging}, howpublished = {Optics Days 2011, Oulu, Finland}, month = {May}, year = 2011, abstract = {During recent years several research institutes in northern Fennoscandia have deployed imaging instruments of a new generation, electron multiplying charge coupled devices (EMCCDs), for imaging the northern lights (Aurora Borealis). EMCCDs eliminate readout noise by on-chip electron multiplication before the readout amplifier, and therefore the much higher quantum efficiency of the bare CCD as compared with image-intensified cameras can be utilized[1]. Therefore EMCCDs allow high-speed imaging or imaging of very weak emissions, improving the understanding of plasma-physical processes in the Earth's environment and auroral energy deposition into the atmosphere. Other applications include meteor and airglow research. Challenges in the use of these instruments include 1. Geometrical calibration (i.e. modelling the projection from geographical to pixel coordinates). A study of different projection models based on star mapping is presented. 2. Intensity calibration, including flat-field and absolute radiometric calibration. The use of star spectra for this purpose is discussed.}, alis = {enell2011op}, irf = {enell2011op}, braendstroem = {enell2011op} }
@article{enell2012tomography, author = {Enell, C.-F. and Gustavsson, B. and Br{\"a}ndstr{\"o}m, B. U. E. and Sergienko, T. I. and Verronen, P. T. and Rydes{\"a}ter, P. and Sandahl, I.}, title = {Tomography-like retrieval of auroral volume emission ratios for the 31 January 2008 Hotel Payload 2 event}, journal = {Geosci.\ Instrum.\ Method.\ Data Syst. Discuss.}, year = {2012}, optkey = {}, volume = {2}, optnumber = {}, pages = {1-21}, optmonth = {}, optnote = {}, optannote = {}, url = {http://www.geosci-instrum-method-data-syst-discuss.net/2/1/2012/gid-2-1-2012.pdf}, alis = {enell2012tomography}, braendstroem = {enell2012tomography}, irf = {enell2012tomography}, referee = {enell2012tomography} }
@article{golovchanskaya2008jgr, author = {Golovchanskaya, I. V. and B. V. Kozelov and T. I. Sergienkoand U. Brändström and H. Nilsson and I. Sandahl}, title = {Scaling behavior of auroral luminosity fluctuations observed by {ALIS}}, journal = {J.\ Geophys.\ Res.}, year = {2008}, optkey = {}, volume = {113}, number = {A10303}, optpages = {}, optmonth = {}, optnote = {doi: 10.1029/2008JA013217}, doi = {10.1029/2008JA013217}, optannote = {}, alis = {golovchanskaya2008jgr}, braendstroem = {golovchanskaya2008jgr}, irf = {golovchanskaya2008jgr}, referee = {golovchanskaya2008jgr}, printstatus = {***UNKNOWN***} }
@article{gustavsson2001jgr, author = {B. Gustavsson and T. Sergienko and M. T. Rietveld and F. Honary and {\AA} Steen and B. U. E. Brändström and T. B. Leyser and A. L. Aruliah and T. Aso and M. Ejiri}, title = {First Tomographic estimate of volume distribution of enhanced airglow emission caused by {HF} pumping}, journal = {J.\ Geophys.\ Res.}, year = 2001, volume = 106, number = {A12}, pages = {29105--29123}, month = {December}, alis = {gustavsson2000jgr}, alishl = {gustavsson2000jgr}, braendstroem = {gustavsson2000jgr}, irf = {gustavsson2000jgr}, referee = {gustavsson2000jgr}, printstatus = {***MISSING***} }
@article{gustavsson2001pce, author = {Björn Gustavsson and {\AA}. Steen and T. Sergienko and B. U. E. Brändström}, title = {Estimate of auroral electron spectra, the power of ground-based multi-station optical measurements}, journal = {Phys.\ Chem.\ Earth}, year = 2001, volume = 26, number = {1-3}, pages = {189-194}, alis = {gustavsson2001pce}, alishl = {gustavsson2001pce}, braendstroem = {gustavsson2001pce}, irf = {gustavsson2001pce}, referee = {gustavsson2001pce}, printstatus = {***MISSING***} }
@article{gustavsson2002grl, author = {Björn Gustavsson and Berndt Urban Eug{\'e}n Brändström and {\AA}ke Steen and Timophey Sergienko and Thomas B. Leyser and M. T. Rietveld and Takehiko Aso and Masaki Ejiri}, title = {Nearly simultaneous images of {HF}-pump enhanced airglow at 6300 {{\AA}} and 5577 {{\AA}}}, journal = {Geophys.\ Res.\ Lett.}, year = 2002, volume = 29, number = 24, pages = {2220}, optmonth = {January}, note = {paper No. 10.1029/2002GL015350}, alis = {gustavsson2002grl}, alishl = {gustavsson2002grl}, braendstroem = {gustavsson2002grl}, irf = {gustavsson2002grl}, referee = {gustavsson2002grl}, printstatus = {***MISSING***} }
@article{gustavsson2005anngeo, author = {Gustavsson, B. and Sergienko, T. and Kosch, M. J. and Rietveld, M. T. and Brändström, B. U. E. and Leyser, T. B. and Isham, B. and Gallop, P. and Aso, T. and Ejiri, M. and Steen, {{\AA}}. and Grydeland, T. and la Hoz, C. and Kaila, K. and Jussila, J. and Holma, H.}, title = {The electron distribution during {H}{F} pumping, a picture painted with all colors}, journal = {Ann.\ Geophys.}, year = 2005, volume = 23, number = 5, pages = {1747--1754}, url = {http://www.copernicus.org/EGU/annales/23/1747.htm}, pdf = {http://www.cosis.net/members/onlib/request.php?file=EGU/ANG/2005/5/ag-23-1747.pdf}, keywords = {electron distribution, artificial airglow, active experiments}, abstract = {The shape of the electron energy distribution has long been a central question in the field of high-frequency radio-induced optical emission experiments. This report presents estimates of the electron energy distribution function, $f_e(E)$, from 0 to 60~{eV} based on optical multi-wavelength (6300, 5577, 8446, 4278~{\AA}) data and 930-{MHz} incoherent scatter radar measurements of ion temperature, electron temperature and electron concentration. According to our estimate, the electron energy distribution has a depression at around 2~{eV}, probably caused by electron excitation of vibrational states in N$_2$, and a high energy tail that is clearly supra-thermal. The temporal evolution of the emissions indicates that the electron temperature still plays an important role in providing electrons with energies close to 2~{eV}. At the higher energies the electron energy distribution has a non-thermal tail.}, alis = {gustavsson2005anngeo}, braendstroem = {gustavsson2005anngeo}, irf = {gustavsson2005anngeo}, referee = {gustavsson2005anngeo}, printstatus = {***UNKNOWN***} }
@article{gustavsson2006prl, author = {Björn Gustavsson and T. B. Leyser and M. Kosch and M. T. Rietveld and Åke Steen and Berndt Urban Eugén Brändström and Takehiko Aso}, title = { Electron Gyroharmonic Effects in Ionization and Electron Acceleration during High-Frequency Pumping in the Ionosphere}, journal = {Phys.\ Rev.\ Lett.}, year = 2006, optkey = {}, volume = {97}, number = {195002}, optpages = {}, optmonth = {}, optnote = {(accepted)}, optannote = {}, alis = {gustavsson2006prl}, braendstroem = {gustavsson2006prl}, irf = {gustavsson2006prl}, referee = {gustavsson2006prl}, printstatus = {printout} }
@article{gustavsson2008jgr:a, author = {{Gustavsson}, B. and {Kosch}, M.~J. and {Senior}, A. and {Kavanagh}, A.~J. and {Br{\"a}ndstr{\"o}m}, B.~U.~E. and {Blixt}, E.~M.}, title = {{Combined EISCAT radar and optical multispectral and tomographic observations of black aurora}}, journal = {J.\ Geophys.\ Res.}, keywords = {Atmospheric Composition and Structure: Airglow and aurora, Magnetospheric Physics: Energetic particles: precipitating, Magnetospheric Physics: Electric fields (2411), Ionosphere: Ionosphere/magnetosphere interactions (2736)}, year = 2008, month = jun, volume = 113, number = {A12}, pages = {A06308}, doi = {10.1029/2007JA012999}, url = {http://www.agu.org/pubs/crossref/2008/2007JA012999.shtml}, abstract = {Black auroras are recognized as spatially well-defined regions within a uniform diffuse auroral background where the optical emission is significantly reduced. Black auroras typically appear post-magnetic midnight and during the substorm recovery phase, but not exclusively so. We report on the first combined multimonochromatic optical imaging, bistatic white-light TV recordings and incoherent scatter radar observations of black aurora by EISCAT of the phenomenon. From the relatively larger reduction in luminosity at 4278~{{\AA}} than at 8446~{{\AA}} we show that nonsheared black auroras are most probably not caused by downward directed electrical fields at low altitude. From the observations, we determine this by relating the height and intensity of the black aurora to precipitating particle energy within the surrounding background diffuse aurora. The observations are more consistent with an energy selective loss cone. Hence the mechanism causing black aurora is most probably active in the magnetosphere rather than close to Earth.}, adsurl = {http://adsabs.harvard.edu/abs/2008JGRA..11306308G}, adsnote = {Provided by the SAO/NASA Astrophysics Data System}, alis = {gustavsson2008jgr:a}, braendstroem = {gustavsson2008jgr:a}, irf = {gustavsson2008jgr:a}, referee = {gustavsson2008jgr:a}, printstatus = {***UNKNOWN***} }
@inproceedings{hedin1999hikr, author = {M. Hedin and I. Häggström and Asta Pellinen-Wannberg and I. Häggström and Laila Andersson and Urban Brändström and Björn Gustavsson and {\AA}ke Steen and Assar Westman and Gudmund Wannberg and Tony van Eyken and Takehiko Aso and Cynthia Cattell and Charles W. Carlson and Dave Klumpar}, title = {Trough observations with the {EISCAT} radars, {ALIS} auroral imaging system and {FAST} satellite}, booktitle = {Proceedings of {R}adio{V}etenskap och {K}ommunikation 99}, pages = {113--117}, year = 1999, editor = {Jan-Olof Gustavsson}, volume = 1, address = {Karlskrona, Sweden}, month = {June}, organization = {H{\"o}gskolan i Karlskrona/Ronneby}, note = {{ISBN 91-630-8156-3}}, alis = {hedin1999hikr}, braendstroem = {hedin1999hikr}, irf = {hedin1999hikr}, printstatus = {copy} }
@article{hedin2000apuar, author = {M. Hedin and I. Häggström and Asta Pellinen-Wannberg and I. Häggström and Laila Andersson and Urban Brändström and Björn Gustavsson and {\AA}ke Steen and Assar Westman and Gudmund Wannberg and Tony van Eyken and Takehiko Aso and Cynthia Cattell and Charles W. Carlson and Dave Klumpar}, title = {{3-D} extent of the main ionospheric trough ---a case study}, journal = {Adv. Polar Upper Atmos. Res.}, year = 2000, volume = 14, pages = {157--162}, month = {August}, alis = {hedin1999hikr}, braendstroem = {hedin1999hikr}, irf = {hedin1999hikr}, referee = {hedin1999hikr}, printstatus = {copy} }
@inbook{instrkurs2000irf, optauthor = {U. Brändström and Carl-Fredrik Enell and Kerstin Stebel and Uwe Raffalski and Thomas Wagner}, editor = {Solveig H. H{\o}ymork}, title = {Sensors and Instruments for Space Exploration}, chapter = {6. Measurements by optical methods}, publisher = {Swedish Institute of Space Physics}, year = 2000, address = {Kiruna}, edition = 2, pages = {71--119}, alis = {instrkurs2000irf}, braendstroem = {instrkurs2000irf}, irf = {instrkurs2000irf}, printstatus = {***MISSING***} }
@article{kirkwood2002grl, author = {S. Kirkwood and V. Barabash and B. U. E. Brändström and A. Moström and K. Stebel and N. Mitchell and W. Hocking}, title = {Noctilucent clouds, {PMSE} and 5-day planetary waves: a case study}, journal = {Geophys.\ Res.\ Lett.}, year = 2002, volume = 29, number = 10, pages = {50-1--4}, braendstroem = {kirkwood2002grl}, irf = {kirkwood2002grl}, referee = {kirkwood2002grl}, printstatus = {copy} }
@article{knudsen1993jgr, author = {David J. Knudsen and G. Haerendel and Stefan Buchert and M.C. Kelley and {\AA}. Steen and U. Brändström}, title = {Incoherent scatter radar spectrum distorsions from intense auroral turbulence}, journal = {J.\ Geophys.\ Res.}, volume = 98, pages = {9459--9471}, year = 1993, braendstroem = {knudsen1993jgr}, irf = {knudsen1993jgr}, referee = {knudsen1993jgr}, printstatus = {copy} }
@inproceedings{lamy2010characterizing, title = {Characterizing magnetospheric electrons from ALIS observations of discrete auroral arcs and quasi-stationary modeling of auroral acceleration}, author = {Lamy, H. and Simon, C. and Echim, M. and de Keyser, JM and Gustavsson, B. and Sergienko, T. and Sandahl, I. and Brändström, U.}, booktitle = {AGU Fall Meeting Abstracts}, volume = {1}, pages = {1878}, year = {2010}, alis = {lamy2010characterizing}, braendstroem = {lamy2010characterizing}, irf = {lamy2010characterizing} }
@inproceedings{lamy2010coordinated, title = {Coordinated observations of auroral arcs with ALIS and EISCAT}, author = {Lamy, H. and Simon, C. and Gustavsson, B. and de Keyser, J. and Sergienko, T. and Brändström, U. and Sandahl, I.}, booktitle = {38th COSPAR Scientific Assembly}, volume = {38}, pages = {1146}, year = {2010}, alis = {lamy2010coordinated}, braendstroem = {lamy2010coordinated}, irf = {lamy2010coordinated} }
@article{leyser2000apuar, author = {T. B. Leyser and B. Gustavsson and B. U. E. Brändström and {\AA}. Steen, F. Honary and M. T. Rietveld, Takehiko Aso and Masaki Ejiri}, title = {Simultaneous measurements of high-frequency pump-enhanced airglow and ionospheric temperatures at auroral latitudes}, journal = {Adv. Polar Upper Atmos. Res.}, pages = {1--11}, year = 2000, volume = 14, alis = {leyser2000apuar}, braendstroem = {leyser2000apuar}, irf = {leyser2000apuar}, referee = {leyser2000apuar}, printstatus = {preprint} }
@inproceedings{leyser2002ursi, author = {T. B. Leyser and B. U. E. Brändström and B. Gustavsson and T. Sergienko and M. T. Rietveld}, title = {Enhanced airglow by high frequency electromagnetic pumping with the {EISCAT} heating facility and observed by the multi-station auroral large imaging system {ALIS}}, booktitle = {URSI}, xoptpages = {}, year = 2002, xopteditor = {}, xoptvolume = {}, xoptnumber = {}, xoptseries = {}, xoptaddress = {}, xoptmonth = {}, organization = {URSI}, xoptpublisher = {}, note = {paper 815, 2002}, alis = {leyser2002ursi}, referee = {leyser2002ursi}, braendstroem = {leyser2002ursi}, irf = {leyser2002ursi}, printstatus = {draft} }
@article{pellinen2004grl, author = {Asta Pellinen-Wannberg and Edmond Murad and Björn Gustavsson and Urban Brändström and Carl-Fredrik Enell and Christopher Roth and Iwan P. Williams and {\AA}ke Steen}, title = {Optical observations of water in {L}eonid meteor trails}, journal = {Geophys.\ Res.\ Lett.}, year = {2004}, optkey = {}, volume = {31}, optnumber = {}, optpages = {}, month = {February}, optannote = {}, pdf = {http://www.agu.org/journals/gl/gl0403/2003GL018785/2003GL018785.pdf}, optnote = {doi:10.1029/2003GL018785}, doi = {10.1029/2003GL018785}, alis = {pellinen2004grl}, braendstroem = {pellinen2004grl}, irf = {pellinen2004grl}, referee = {pellinen2004grl}, printstatus = {printout} }
@article{pudovkin1997ssr, author = {Michael I. Pudovkin and {\AA}ke Steen and Urban Brändström}, title = {Vorticity in the magnetospheric plasma and its signature in the Aurora dynamics.}, journal = {Space Science Rev.}, volume = 80, pages = {411-444}, year = 1997, alis = {pudovkin1997ssr}, braendstroem = {pudovkin1997ssr}, irf = {pudovkin1997ssr}, referee = {pudovkin1997ssr}, printstatus = {draft} }
@inproceedings{pudovkin1998spie, author = {M. I. Pudovkin and {\AA}ke Steen and N. V. Nikolaev and O. I. Kornilov and Urban Brändström and Björn Gustavsson and Peter Rydesäter}, title = {Automatic recognition of Auroral forms}, booktitle = {{N}inth workshop on {V}irtual {I}ntelligence / {D}ynamic neural networks}, pages = {121--127}, year = 1998, editor = {Thomas Lindbladh, Mary Lou Padget and Jason Kinser}, volume = 3728, month = {June}, organization = {{R}oyal {I}nstitute of {T}echnology, {S}tockholm, {S}weden}, publisher = {{The {I}nternational {S}ociety for {O}ptical {E}ngineering}}, note = {{ISBN} 0-8194-3202-4}, alis = {pudovkin1998spie}, braendstroem = {pudovkin1998spie}, irf = {pudovkin1998spie}, printstatus = {printout} }
@article{rees2000grl, key = {rees2000grl}, author = {David Rees and Mark Conde and {\AA}ke Steen and Urban Brändström}, title = {The first daytime Ground-Based Optical Image of the Aurora}, journal = {Geophys.\ Res.\ Lett.}, pages = {313--316}, year = 2000, month = {February}, volume = 27, number = 3, alis = {rees2000grl}, alishl = {rees2000grl}, braendstroem = {rees2000grl}, irf = {rees2000grl}, referee = {rees2000grl}, printstatus = {preprint} }
@inproceedings{rydesaeter1997esa, author = {Peter Rydesäter and {\AA}ke Steen and Björn Gustavsson and Thomas Lindblad}, title = {Application of selective imaging techniques to multi-station imaging}, booktitle = {2nd workshop on {AI} Applications in Solar Terrestial Physics}, pages = {195--199}, year = 1997, volume = {WPP-148}, month = {July}, organization = {European Space Agency}, alis = {rydesaeter1997esa}, braendstroem = {rydesaeter1997esa}, irf = {rydesaeter1997esa}, printstatus = {copy} }
@inproceedings{rydesaeter1998spie, author = {Peter Rydesäter and {\AA}ke Steen and Urban Brändström and Björn Gustavsson}, title = {Classifying auroras using artificial neural networks}, booktitle = {{N}inth workshop on {V}irtual {I}ntelligence / {D}ynamic neural networks}, pages = {115--120}, year = 1998, editor = {Thomas Lindbladh, Mary Lou Padget and Jason Kinser}, volume = 3728, month = {June}, organization = {{R}oyal {I}nstitute of {T}echnology, {S}tockholm, {S}weden}, publisher = {{The {I}nternational {S}ociety for {O}ptical {E}ngineering}}, note = {{ISBN} 0-8194-3202-4}, alis = {rydesaeter1998spie}, braendstroem = {rydesaeter1998spie}, irf = {rydesaeter1998spie}, printstatus = {***MISSING***} }
@article{rydesaeter2003sgp, author = {Peter Rydesäter and Björn Gustavsson and Urban Brändström and {\AA}ke Steen}, title = {Lossy compression of scientific images of aurora}, journal = {Sodankyl{\"a} Geophysical publication series}, year = 2003, volume = 92, pages = {1--4}, month = {August}, alis = {rydesaeter2003sgp}, braendstroem = {rydesaeter2003sgp}, irf = {rydesaeter2003sgp}, printstatus = {***MISSING***} }
@article{safargaleev2009electric, title = {Electric field enhancement in an auroral arc according to the simultaneous radar (EISCAT) and optical (ALIS) observations}, author = {Safargaleev, VV and Sergienko, TI and Kozlovsky, AE and Sandahl, I. and Br{\"a}ndstr{\"o}m, U. and Shibaeva, DN}, journal = {Geomagnetism and Aeronomy}, volume = {49}, number = {3}, pages = {353--367}, year = {2009}, publisher = {Springer}, alis = {safargaleev2009electric}, braendstroem = {safargaleev2009electric}, irf = {safargaleev2009electric}, referee = {safargaleev2009electric} }
@inproceedings{sandahl2005esa, author = {Ingrid Sandahl and Urban Brändström and Björn Gustavsson and Tima Sergienko}, title = {International network for auroral optical studies of the polar ionosphere}, booktitle = {17th {ESA} {S}ymposium on European Rocket and Balloon Programmes and Related Research}, pages = {607--612}, year = 2005, volume = {SP-590}, month = {May}, organization = {European Space Agency}, note = {{ISBN} 92-9092-901-4}, alis = {sandahl2005esa}, braendstroem = {sandahl2005esa}, irf = {sandahl2005esa}, printstatus = {printout} }
@article{sandahl2008jastp, author = {Sandahl, I. and T. Sergienko and U. Brändström }, title = {Fine structure of optical aurora}, journal = {J.\ Atmos.\ Solar and Terr.\ Phys.}, year = {2008}, optkey = {}, volume = {70}, optnumber = {}, pages = {2275--2292}, optmonth = {}, optnote = {doi:10.1016/j.jastp.2008.08.016}, doi = {10.1016/j.jastp.2008.08.016}, optannote = {}, alis = {sandahl2008jastp}, braendstroem = {sandahl2008jastp}, irf = {sandahl2008jastp}, referee = {sandahl2008jastp}, printstatus = {***UNKNOWN***} }
@proceedings{sandahl2009nmr, title = {{I}n the light of the aurora, {O}ptical research in northernmost {E}urope}, year = 2009, editor = {Sandahl, I.}, volume = 557, optnumber = 557, series = {TemaNord}, address = {Copenhagen}, organization = {Nordic Council of {M}inisters}, publisher = {Copenhagen}, note = {http://www.norden.org/sv/publikationer/publikationer/2009-557}, alis = {sandahl2009nmr}, irf = {sandahl2009nmr} }
@inproceedings{sandahl2010deducing, title = {Deducing spatial properties of auroral primary particle distributions from ground-based optical imaging}, author = {Sandahl, I. and Sergienko, T. and Axelsson, K. and Gustavsson, B. and Brändström, U.}, booktitle = {AGU Fall Meeting Abstracts}, volume = {1}, pages = {1885}, year = {2010}, alis = {sandahl2010deducing}, braendstroem = {sandahl2010deducing}, irf = {sandahl2010deducing} }
@article{sandahl2010ijrs, author = {Sandahl, I. and U. Brändström and T. Sergienko}, title = {Fine structure of aurora}, journal = {Int.\ J.\ Remote Sensing}, year = {2010}, optkey = {}, optvolume = {}, optnumber = {}, optpages = {}, optmonth = {}, optnote = {{A}ccepted for publication. {I}n press}, optannote = {} }
@article{sandahl2011fine, title = {Fine structure of aurora}, author = {Sandahl, I. and Br{\"a}ndstr{\"o}m, U. and Sergienko, T.}, journal = {Int.\ J.\ Remote Sensing}, volume = {32}, number = {11}, pages = {2947--2972}, year = {2011}, publisher = {Taylor \& Francis}, alis = {sandahl2011fine}, braendstroem = {sandahl2011fine}, irf = {sandahl2011fine}, referee = {sandahl2011fine} }
@inproceedings{sandahl2011opa, author = {Sandahl, I. and U. Brändstöm and T. Sergienko}, title = {Networks of people and infrastructure for ground-based auroral research}, booktitle = {Secci{\'o}n Especial: 37th AMASON {\'O}ptica {P}ura y Aplicada)}, optcrossref = {}, optkey = {}, pages = {581--591}, year = {2011}, opteditor = {}, volume = {44}, number = {4}, series = {Opt.\ Pura Apl.}, optaddress = {}, optmonth = {}, organization = {Sociedad Espa{\~n}ola de {\'O}ptica}, optpublisher = {}, optnote = {accepted}, optannote = {}, alis = {sandahl2011opa}, braendstroem = {sandahl2011opa}, irf = {sandahl2011opa}, referee = {sandahl2011opa} }
@article{sergienko2000pce, author = {T. Sergienko and B. Gustavsson and {{\AA}}. Steen and U. Brändström and M. Rietveld and T. Leyser and F. Honary}, title = {Analysis of excitation of the 630.0 nm airglow during heating experiment in {T}roms{\o} on {F}ebruary 16, 1999}, journal = {Phys.\ Chem.\ Earth}, year = 2000, volume = 25, xoptnumber = {}, pages = {531--535}, xoptmonth = {}, alis = {sergienko2000pce}, braendstroem = {sergienko2000pce}, irf = {sergienko2000pce}, referee = {sergienko2000pce}, printstatus = {***MISSING***} }
@article{sergienko2008anngeo, author = {Sergienko, T. and I. Sandahl and B. Gustavsson and U. Brändström and L. Andersson and Å. Steen}, title = {{A} study of fine structure of diffuse aurora with {ALIS-FAST} measurements}, journal = {Ann.\ Geophys.}, year = {2008}, optkey = {}, volume = {26}, optnumber = {}, pages = {3185--3195}, month = {October}, optnote = {}, optannote = {}, abstract = {We present results of an investigation of the fine structure of the night sector diffuse auroral zone, observed simultaneously with optical instruments (ALIS) from the ground and the FAST electron spectrometer from space 16 February 1997. Both the optical and particle data show that the diffuse auroral zone consisted of two regions. The equatorward part of the diffuse aurora was occupied by a pattern of regular, parallel auroral stripes. The auroral stripes were significantly brighter than the background luminosity, had widths of approximately 5 km and moved southward with a velocity of about 100 m/s. The second region, located between the region with auroral stripes and the discrete auroral arcs to the north, was filled with weak and almost homogeneous luminosity, against which short-lived auroral rays and small patches appeared chaotically. From analysis of the electron differential fluxes corresponding to the different regions of the diffuse aurora and based on existing theories of the scattering process we conclude the following: Strong pitch angle diffusion by electron cyclotron harmonic waves (ECH) of plasma sheet electrons in the energy range from a few hundred eV to 3 4 keV was responsible for the electron precipitation, that produced the background luminosity within the whole diffuse zone. The fine structure, represented by the auroral stripes, was created by precipitation of electrons above 3 4 keV as a result of pitch angle diffusion into the loss cone by whistler mode waves. A so called }, adsurl = {http://adsabs.harvard.edu/abs/2008AnGeo..26.3185S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System}, alis = {sergienko2008anngeo}, braendstroem = {sergienko2008anngeo}, irf = {sergienko2008anngeo}, referee = {sergienko2008anngeo}, printstatus = {***UNKNOWN***} }
@inproceedings{simon2010discrete, title = {Discrete auroral arcs: coordinated ALIS-EISCAT observations and modelling}, author = {Simon, C. and Lamy, H. and Gustavsson, B. and de Keyser, JM and Sergienko, T. and Brändström, U. and Sandahl, I.}, booktitle = {AGU Fall Meeting Abstracts}, volume = {1}, pages = {1713}, year = {2010}, alis = {simon2010discrete}, braendstroem = {simon2010discrete}, irf = {simon2010discrete} }
@inproceedings{steen1990nssr, author = {{\AA}ke Steen and Urban Brändström and Kari Kaila}, title = {{A} Scientific and technical description of {ALIS}}, booktitle = {Proc. {NSSR} Annual meeting {B}olkesj\o, {N}orway}, year = 1990, pages = {153--164}, organization = {Nordic Society for Space Research}, month = {November}, alis = {steen1990nssr}, braendstroem = {steen1990nssr}, irf = {steen1990nssr}, printstatus = {printout} }
@inproceedings{steen1992esa, author = {{\AA}ke Steen and Urban Brändström}, title = {requirements on {CCD}-detectors for ground-based auroral imaging}, booktitle = {Proc. ESA symposium on photon detectors for space instrumentation}, year = 1992, pages = {379--382}, organization = {European Space Agency}, address = {ESTEC, The Netherlands}, month = {December}, note = {ESA-SP-356}, alis = {steen1992esa}, braendstroem = {steen1992esa}, irf = {steen1992esa}, printstatus = {preprint} }
@article{steen1993stepin, author = {{\AA}ke Steen and U. Brändström}, title = {A multi station ground-based imaging system at high latitudes}, journal = {STEP Int.\ Newslett.}, volume = 3, number = 5, pages = {11-14}, month = {May}, year = 1993, alis = {steen1993step}, braendstroem = {steen1993step}, irf = {steen1993step}, printstatus = {printout} }
@inproceedings{steen1996sgo, author = {{\AA}ke Steen and Urban Brändström and Björn Gustavsson}, title = {Multi station imaging studies together with the {\O}rsted satellite}, booktitle = {Proc. {\O}rsted meeting. Sodankylä, Finland }, year = 1996, month = {April}, alis = {steen1996sgo}, braendstroem = {steen1996sgo}, irf = {steen1996sgo}, printstatus = {printout} }
@inproceedings{steen1997bst, author = {{\AA}ke Steen and Urban Brändström and Björn Gustavsson and Takehiko Aso}, title = {A multistation approach in the {B}arents region}, booktitle = {Proceedings of the 24th annual European Meeting on Atmospheric Studies by Optical Methods}, pages = {203--206}, year = 1997, month = {August}, publisher = {Sentraltrykkeriet A/S Bod\o}, alis = {steen1997bst}, braendstroem = {steen1997bst}, irf = {steen1997bst}, printstatus = {printout} }
@inproceedings{steen1997esa, author = {{\AA}ke Steen and Urban Brändström and Björn Gustavsson}, title = {{ALIS} --- a multi station imaging system at high latitude with multi disciplinary scientific objectives}, booktitle = {Proceedings 13th ESA Symposium on European Rocket and Balloon Programmes and Related Research}, pages = {261--266}, year = 1997, month = {September}, organization = {ESA}, alis = {steen1997esa}, braendstroem = {steen1997esa}, irf = {steen1997esa}, printstatus = {preprint} }
@inproceedings{steen1997xx, author = {{\AA}ke Steen and Björn Gustavsson and Urban Brändström}, title = {Temporal variation of 2{D} altitude distributions of lee-wave generated polar stratospheric clouds}, booktitle = {Proceedings of the 4th European symposium of polar stratospheric ozone}, year = 1997, alis = {steen1997xx}, braendstroem = {steen1997xx}, irf = {steen1997xx}, printstatus = {printout} }
@inproceedings{steen1999ec, author = {{\AA}ke Steen and Björn Gustavsson and Carl-Fredrik Enell and Urban Brändström}, title = {{PSC} dynamics investigated by multi-station imaging --- Techniques, results and prospects}, booktitle = {Air pollution research report. {M}esoscale processes in the stratosphere}, pages = {239--242}, year = 1999, volume = {69}, editor = {K.S. Carslaw and G.T. Amanatidis}, publisher = {European Comission}, note = {{ISBN} 92-828-4629-6}, alis = {steen1999ec}, braendstroem = {steen1999ec}, irf = {steen1999ec}, printstatus = {copy} }
@inproceedings{steen1999esa, author = {{\AA}ke Steen and Jan Englund and Urban Brändström and Ulf Stambro and Sten Hedlin and Stig Kemi and Lennart Marcus and Ola Widell and Lars Sarri}, title = {{KEOPS} a networked optical research facility at high latitudes}, booktitle = {{P}roceedings 14th {ESA} {S}ymposium on {E}uropean {R}ocket and {B}alloon {P}rogrammes and {R}elated {R}esearch}, pages = {173--178}, year = 1999, editor = {B.\ Kaldeich-Sch{\"u}rmann}, volume = {SP-437}, month = {May}, organization = {European Space Agency}, note = {{ISBN} 92-9092-748-8}, alis = {steen1999esa}, braendstroem = {steen1999esa}, irf = {steen1999esa}, printstatus = {printout} }
@inproceedings{steen1999iaags, author = {{\AA}ke Steen and Björn Gustavsson and Urban Brändström and Takehiko Aso and Masaki Ejiri}, title = {{\textrm{OI}} 846.6 nm auroral imaging}, booktitle = {Proceedings of the 25th annual European Meeting on Atmospheric Studies by Optical Methods, Granada, Spain}, pages = {90--95}, year = 1999, publisher = {Instituto de Astrof{\'i}sica de Andalucia, Granada, Spain}, alis = {steen1999iaags}, braendstroem = {steen1999iaags}, irf = {steen1999iaags}, printstatus = {copy} }
@article{tagirov2000jsr, author = {Vartan Tagirov and V. A. Arinin and Urban Brändström and A. Pajunpää and V.V. Klimenko}, title = {Atmospheric optical phenomena caused by powerful rocket launches}, journal = {J.\ Spacecraft and Rockets}, year = 2000, volume = 37, number = 6, pages = {812--821}, month = {November}, braendstroem = {tagirov2000jsr}, irf = {tagirov2000jsr}, referee = {tagirov2000jsr}, printstatus = {preprint} }
@article{tanaka2011feasibility, title = {Feasibility study on Generalized-Aurora Computed Tomography}, author = {Tanaka, YM and Aso, T. and Gustavsson, B. and Tanabe, K. and Ogawa, Y. and Kadokura, A. and Miyaoka, H. and Sergienko, T. and Brändström, U. and Sandahl, I.}, journal = {Ann. Geophys}, volume = {29}, pages = {551--562}, year = {2011}, alis = {tanaka2011feasibility}, braendstroem = {tanaka2011feasibility}, irf = {tanaka2011feasibility}, referee = {tanaka2011feasibility} }
@article{urashima1999apuar, author = {Akira Urashima and Takehiko Aso and Masaki Ejiri and {\AA}ke Steen and U. Brändström and B. Gustavsson}, title = {Camera calibration by integrating sphere for the auroral tomography observation}, journal = {Adv. Polar Upper Atmos. Res.}, year = 1999, volume = 13, pages = {79--88}, month = {September}, alis = {urashima1999apuar}, braendstroem = {urashima1999apuar}, irf = {urashima1999apuar}, referee = {urashima1999apuar}, printstatus = {preprint} }
@misc{vierinen2010meteoroids, author = {Juha Vierinen and Asta Pellinen-Wannberg and Urban Br{\"a}ndstr{\"o}m and Bj{\"o}rn Gustavsson and Carl-Fredrik Enell}, title = {Radar measurements during the {L}eonid campaign 2009}, howpublished = {Presentation, Meteoroids 2010 conference, Breckenridge, Colorado, USA}, month = {May}, year = 2010, abstract = { We present the results of radar measurements during the 4.5-day campaign around the Leonid maximum in November 15-20 2009, in which we conducted simultaneous tristatic EISCAT UHF measurements along with optical EMCCD observations. During the last 24 hours, we also performed dual-polarization measurements with the two remote receiving stations. Due to significantly improved sensitivity of the detection algorithms, we obtained a larger meteor detection rate than in previous studies at EISCAT UHF, peaking at 200 detections per hour at 6 UT. No significant increase in meteor detection rate was observed during the peak of the Leonid shower. We detected several low altitude trail-like structures, the lowest one at 60 km. An overview plot of the results is shown in Fig 1. }, alis = {enell2010meteoroids}, irf = {enell2010meteoroids}, braendstroem = {enell2010meteoroids} }
@inproceedings{waldemark1997xx, author = {J. Waldemark and V. Becanovic and U. Brändström and C Holmström and M. Larsson and T. Lindblad and C. S. Lindsay and {\AA}ke Steen}, title = {Investigation of useful image preprocessing for analysis of aurora images}, booktitle = {Proceedings {EANN}}, year = 1997, alis = {waldemark1997xx}, braendstroem = {waldemark1997xx}, irf = {waldemark1997xx}, printstatus = {printout} }
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