SENSITIVITY OF SHORTWAVE RADIATION ABSORBED IN THE OCEAN TO CIRRUS PARAMETERS

被引:2
作者
MASUDA, K
TAKASHIMA, T
机构
[1] Meteorological Research Institute, Tsukuba, Ibaraki
关键词
Cirrus Parameters - Hexagonal Ice Crystals - Meteorological Satellites - Optical Thickness - Single Scattering Albedo;
D O I
10.1016/0034-4257(90)90034-J
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
To develop a monitoring technique for estimating the shortwave radiation absorbed in the ocean (Iabsw) from space, sensitivity of Iabsw, and the upward irradiance at the top of the atmosphere (It) to cirrus parameters are investigated in a model atmosphere - ocean system in the wavelength region ranging from 0.285 to 5.0 μm. The cirrus is assumed to be composed of hexagonal ice crystals (columns and plates). The effects of orientation of crystals are also estimated, both for where they are randomly oriented in space and where their long axes are randomly oriented in a horizontal plane. The relationships between Iabsw (or It) and radiance measured by the NOAA-AVHRR radiometer are discussed. Numerical simulation shows that the type and orientation of the ice crystals cannot be neglected to achieve the accuracy of 10 Wm-2 that is required for climate understanding. © 1990.
引用
收藏
页码:75 / 86
页数:12
相关论文
共 31 条
[1]  
[Anonymous], 1983, INTRO SOLAR RAD, DOI DOI 10.1016/B978-0-12-373750-2.50022-7
[2]  
[Anonymous], 1986, WCP112 WORLD MET ORG
[3]  
[Anonymous], ADV GEOPHYS
[4]  
COX C, 1955, J MAR RES, V14, P63
[5]  
Deirmendjian D., 1970, Electromagnetic scattering on spherical polydispersions
[6]  
DIAK GR, 1983, J CLIM APPL METEOROL, V22, P505, DOI 10.1175/1520-0450(1983)022<0505:ITASPM>2.0.CO
[7]  
2
[8]   BULK MODELS OF SOLAR-RADIATION AT SEA [J].
DOBSON, FW ;
SMITH, SD .
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 1988, 114 (479) :165-182
[9]  
GAUTIER C, 1980, J APPL METEOROL, V19, P1005, DOI 10.1175/1520-0450(1980)019<1005:ASPMTE>2.0.CO
[10]  
2