期刊
BOUNDARY-LAYER METEOROLOGY
卷 135, 期 1, 页码 151-159出版社
SPRINGER
DOI: 10.1007/s10546-009-9460-9
关键词
Eddy covariance; Large aperture scintillometer; Sensible heat flux; West Mesa desert
资金
- NASA NIP [NNX08AR31G]
- University of Connecticut's Center for Environmental Sciences and Engineering
Scintillometers are becoming increasingly popular for the validation of satellite remote sensing sensible heat-flux estimates due to the comparable spatial resolutions. However, it is important to gain confidence in the accuracy of the sensible heat-flux measurements obtained by the scintillometer. Large aperture scintillometer (LAS) and eddy-covariance (EC) measurements were collected over a homogeneous, dry and semi-arid region near Las Cruces, New Mexico, USA, where the homogeneity allowed direct comparison of the two instruments despite their differences in footprint sizes. The differences between the sensible heat-flux measured by both LAS and EC systems fall within the differences between two EC systems. We conclude that the large aperture scintillometer is a reliable system for measuring sensible heat flux in a dry semiarid region.
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