Auroral all-sky camera calibration

被引：7

作者：

Sigernes, F. ^{[1
,8
]}

Holmen, S. E. ^{[1
,8
]}

Biles, D. ^{[2
]}

Bjorklund, H. ^{[1
]}

Chen, X. ^{[1
,8
]}

Dyrland, M. ^{[1
,8
]}

Lorentzen, D. A. ^{[1
,8
]}

Baddeley, L. ^{[1
,8
]}

Trondsen, T. ^{[3
]}

Brandstrom, U. ^{[4
]}

Trondsen, E. ^{[5
]}

Lybekk, B. ^{[5
]}

Moen, J. ^{[5
]}

Chernouss, S. ^{[6
]}

Deehr, C. S. ^{[7
]}

机构：

[1] Univ Ctr Svalbard, Longyearbyen, Norway

[2] Univ New Hampshire, Magnetosphere Ionosphere Res Lab, Durham, NH 03824 USA

[3] Keo Sci Ltd, Calgary, AB, Canada

[4] Swedish Inst Space Phys, S-98128 Kiruna, Sweden

[5] Univ Oslo, Dept Phys, Oslo, Norway

[6] Polar Geophys Inst, Apatity, Russia

[7] Univ Alaska, Inst Geophys, Fairbanks, AK USA

[8] Univ Bergen, Birkeland Ctr Space Sci, Bergen, Norway

来源：

GEOSCIENTIFIC INSTRUMENTATION METHODS AND DATA SYSTEMS | 2014年 / 3卷 / 02期

关键词：

D O I：

10.5194/gi-3-241-2014

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A two-step procedure to calibrate the spectral sensitivity to visible light of auroral all-sky cameras is outlined. Center pixel response is obtained by the use of a Lambertian surface and a standard 45W tungsten lamp. Screen brightness is regulated by the distance between the lamp and the screen. All-sky flat-field correction is carried out with a 1m diameter integrating sphere. A transparent Lexan dome at the exit port of the sphere is used to simulate observing conditions at the Kjell Henriksen Observatory (KHO). A certified portable low brightness source from Keo Scientific Ltd was used to test the procedure. Transfer lamp certificates in units of Rayleigh per angstrom ngstrom (R/angstrom) are found to be within a relative error of 2 %. An all-sky camera flat-field correction method is presented with only 6 required coefficients per channel.

引用

页码：241 / 245

页数：5

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