RELATIVE IMPORTANCE OF REFLECTED AND EMITTED FLUX-DENSITY IN 3-14-MUM RANGE

被引:1
作者
KUMAR, R
机构
[1] Instituto de Pesquisas Espaciais-INPE, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico-CNPq, Department of Space Systems, Information Science Division, Sào José dos Campos, Sāo Paulo
来源
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 1979年 / 17卷 / 03期
关键词
D O I
10.1109/TGE.1979.294611
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Using the LOWTRAN 3 Midlatitude Summer Model which includes atmospheric effects, the reflected and emitted radiant flux densities from theoretical lambertian targets were calculated. The following conclusions were obtained. At 3.5 μm, q (ratio of radiant flux density emitted by a natural target to the radiant flux density reflected from it) is much less than one, except at high temperatures and emissivities. At 4 μm, q is of the order of magnitude equal to one for most targets. At 4.6 μm, q is much larger than one at high temperatures and emissivities. Previously acquired field spectroradiometric data on soils in the 3.6-5.4 jum were found to agree closely with theoretical calculations of reflected and emitted radiant flux densities. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.
引用
收藏
页码:49 / 51
页数:3
相关论文
共 7 条
  • [1] KUMAR R, 1973, EMISSION REFLECTION
  • [2] MCCLATCHEY RA, 1972, AFCRL720497 AIR FORC
  • [3] ROBINSON BH, UNPUBLISHED
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