Evaporation from nonvegetated surfaces: Surface aridity methods and passive microwave remote sensing

被引：0
|
作者：
Cahill, AT [1 ]
Parlange, MB
Jackson, TJ
O'Neill, P
Schmugge, TJ
机构：
[1] Texas A&M Univ, Dept Civil & Environm Engn, College Stn, TX 77843 USA
[2] Johns Hopkins Univ, Dept Geog & Environm Engn, Baltimore, MD 21218 USA
[3] ARS, USDA, Hydrol Lab, Beltsville, MD USA
[4] NASA, Goddard Space Flight Ctr, Hydrol Sci Branch, Lab Hydrospher Proc, Greenbelt, MD 20771 USA
来源：
JOURNAL OF APPLIED METEOROLOGY | 1999年 / 38卷 / 09期
关键词：
D O I：
10.1175/1520-0450(1999)038<1346:EFNSSA>2.0.CO;2
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
The use of remotely sensed near-surface soil moisture for the estimation of evaporation is investigated. Two widely used parameterizations of evaporation, the so-called alpha and beta methods, which use near-surface soil moisture to reduce some measure of potential evaporation, are studied. The near-surface soil moisture is provided by a set of L- and S-band microwave radiometers, which were mounted 13 m above the surface. It is shown that soil moisture measured with a passive microwave sensor in combination with the beta method yields reliable estimates of evaporation, whereas the a method is not as robust.
引用
收藏
页码：1346 / 1351
页数：6
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