All-sky camera system providing high temporal resolution annual time series of irradiance in the Arctic

被引:17
作者
Johnsen, Geir [1 ,2 ]
Zolich, Artur [1 ]
Grant, Stephen [1 ]
Bjorgum, Rune [1 ]
Cohen, Jonathan H. [3 ]
McKee, David [4 ,5 ]
Kopec, Tomasz P. [4 ]
Vogedes, Daniel [3 ]
Berge, Jorgen [1 ,2 ,3 ]
机构
[1] Norwegian Univ Sci & Technol NTNU, Ctr Autonomous Marine Operat & Syst, Dept Biol, Trondheim Biol Stn, NO-7491 Trondheim, Norway
[2] Univ Ctr Svalbard UNIS, POB 156, NO-9171 Longyearbyen, Norway
[3] Univ Delaware, Sch Marine Sci & Policy, 700 Pilottown Rd, Lewes, DE 19716 USA
[4] UiT Arctic Univ Norway, Fac Biosci Fisheries & Econ, NO-9037 Tromso, Norway
[5] Univ Strathclyde, Phys Dept, Glasgow G4 ONG, Lanark, Scotland
基金
英国自然环境研究理事会;
关键词
DARK;
D O I
10.1364/AO.424871
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The ArcLight observatory provides hourly continuous time series of light regime data (intensity, spectral composition, and photoperiod) from the Arctic, Svalbard at 79 degrees N. Until now, no complete annual time series of biologically relevant light has been provided from the high Arctic due to insufficient sensitivity of commercial light sensors during the Polar Night. We describe a camera system providing all-sky images and the corresponding integrated spectral irradiance (E-PAR) in energy or quanta units, throughout a complete annual cycle. We present hourly-diel-annual dynamics from 2017 to 2020 of irradiance and its relation to weather conditions, sun and moon trajectories. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License.
引用
收藏
页码:6456 / 6468
页数:13
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