Outgoing long-wave radiation computed from HIRS2/MSU soundings
Outgoing long-wave radiation computed from HIRS2/MSU soundings
复制标题
根据 HIRS2/MSU 探测计算出的输出长波辐射
DOI：
10.1029/jd095id06p07579
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发表时间：
1990
影响因子：
--
通讯作者：
J. Susskind
中科院分区：
文献类型：
--
作者：
Man;J. Susskind
利用从HIRS2/MSU探空数据分析中获取的地球物理参数，将其输入到戈达德大气实验室四阶环流模型中使用的Wu-Kaplan辐射代码的修改版本中，计算了出射长波辐射场（OLR）。1979年的月平均结果与Nimbus 7地球辐射收支（ERB）宽带窄视场仪测量的月平均OLR场在6.3 W/m{sup 2}的标准差范围内一致，但全球平均偏差为8.0 W/m{sup 2}。显示的是1979年7月的结果。高分辨率红外辐射测深仪OLR和ERB OLR之间的差异区域很小，但在空间上与模式一致，这可能与采样差异有关。与先进的非常高分辨率辐射计11-{mu}m观测得到的OLR与ERB OLR之间的差异相比，差异的范围要小得多。从地球物理参数计算OLR的能力是对OLR直接测量的补充，因为它使人们能够将OLR在空间和时间上的变化归因于其他地球物理参数的变化。此外，它还允许人们计算卫星无法直接测量的场，例如地表和大气层顶部之间向上长波通量的差值以及长波云辐射强迫。«少
Fields of outgoing long-wave radiation (OLR) have been computed using geophysical parameters retrieved from analysis of HIRS2/MSU sounding data as input to a modified version of the Wu-Kaplan radiation code used in the Goddard Laboratory for Atmospheres fourth-order general circulation model. Monthly mean results for 1979 agree with monthly mean OLR fields measured by the Nimbus 7 Earth radiation budget (ERB) broadband narrow field of view instrument within standard deviations of 6.3 W/m{sup 2} but with a global mean bias of 8.0 W/m{sup 2}. Results are shown for July 1979. The areas of disagreement between high-resolution infrared radiation sounder OLR and ERB OLR are small but spatially coherent with patterns which may be related to sampling differences. The difference patterns are much less extensive than those between OLR derived from advanced very high resolution radiometer 11-{mu}m observations and ERB OLR. The ability to compute OLR from geophysical parameters is complementary to direct measurement of OLR because it enables one to attribute changes in OLR in space and time to changes in other geophysical parameters. In addition, it allows one to compute fields not directly measurable from satellite, such as the difference of the upward long-wave flux between the surface andmore » the top of the atmosphere and the long-wave cloud radiative forcing.« less