Journal article
Large aperture scintillometer intercomparison study
Boundary-layer meteorology, Vol.128(1), pp.133-150
07/01/2008
DOI: 10.1007/s10546-008-9274-1
Abstract
Two field studies with six large aperture scintillometers (LASs) were performed using horizontal and slant paths. The accuracy of this novel and increasingly popular technique for measuring sensible heat fluxes was quantified by comparing measurements from different instruments over nearly identical transects. Random errors in LAS measurements were small, since correlation coefficients between adjacent measurements were greater than 0.995. However, for an ideal set-up differences in linear regression slopes of up to 21% were observed with typical inter-instrument differences of 6%. Differences of 10% are typical in more realistic measurement scenarios over homogeneous natural vegetation and different transect heights and locations. Inaccuracies in the optics, which affect the effective aperture diameter, are the most likely explanation for the observed differences.
Details
- Title: Subtitle
- Large aperture scintillometer intercomparison study
- Creators
- J. Kleissl - New Mexico Institute of Mining and TechnologyJ. Gomez - Dept Earth & Environm Sci, Socorro, NM USAS. -H. Hong - New Mexico Institute of Mining and TechnologyJ. M. H. Hendrickx - New Mexico Institute of Mining and TechnologyT. Rahn - Los Alamos National LaboratoryW. L. Defoor - New Mexico Institute of Mining and Technology
- Resource Type
- Journal article
- Publication Details
- Boundary-layer meteorology, Vol.128(1), pp.133-150
- DOI
- 10.1007/s10546-008-9274-1
- ISSN
- 0006-8314
- eISSN
- 1573-1472
- Publisher
- Springer Nature
- Number of pages
- 18
- Language
- English
- Date published
- 07/01/2008
- Academic Unit
- Civil and Environmental Engineering
- Record Identifier
- 9984962628202771
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