Continuous bidirectional reflectance (BRF) measurement of snow using monochromatic camera

被引：0
|
作者：
Manninen, Terhikki [1 ]
Anttila, Kati [1 ]
Pirazzini, Roberta [1 ]
Raisanen, Petri [1 ]
Leppanen, Leena [1 ]
Kontu, Anna [1 ]
Peltoniemi, Jouni [2 ]
机构：
[1] Finnish Meteorol Inst, POB 503, Helsinki 00101, Finland
[2] Finnish Geospatial Res Inst, Natl Land Survey, Geodeetinrinne 2, Masala 02430, Finland
来源：
COLD REGIONS SCIENCE AND TECHNOLOGY | 2022年 / 196卷
基金：
芬兰科学院;
关键词：
Snow; Bidirectional reflectance; Monochromatic camera; GRAIN-SIZE; ALBEDO; PRODUCTS; BRDF;
D O I：
10.1016/j.coldregions.2022.103514
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
An approach of using monochromatic camera for observation of the principal plane bidirectional reflectance characteristics of snow is presented. The photos are continuously taken at nadir view with an interval of 1 min. The mean intensity of the photos is used to observe the relative dependence of the reflectance of snow on the solar zenith angle (SZA). Both the decrease of the snow bidirectional reflectance and its diurnal asymmetry with respect to the SZA during the melting season are demonstrated.
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页数：6
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