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

页码：1346 / 1351

页数：6

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