Overview
| DOI | https://doi.org/10.3334/ORNLDAAC/1182 |
|---|---|
| Version | 1 |
| Project | |
| Published | 2013-08-22 |
| Updated | 2017-10-30 |
| Usage | 945 downloads |
Description
This data set, LBA-ECO LC-15 Aerodynamic Roughness Maps of Vegetation Canopies, Amazon Basin: 2000, provides physical roughness maps of vegetation canopies in the Amazon Basin. The images are estimates of aerodynamic roughness length (Z0) and zero plane displacement height (D0) at 1-km spatial resolution. The aerodynamic roughness length (Z0) is an important parameter to determine the vertical gradients of mean wind speed and the conditions for momentum transfer over a vegetated or bare rough surface. The maps were produced from a multivariate regression model algorithm developed from field-measured vegetation structure and remote-sensing data. The data input sources included Shuttle Radar Topography Mission (SRTM) (Saatchi, 2013), JERS-1, MODIS, and field data from vegetation biomass plots over the Amazon basin, as well as tower-based wind profile measurements, and roughness parameters from LBA tower sites. There are two GeoTIFF (.tif) files with this data set.
Science Keywords
- ATMOSPHERE
- ATMOSPHERIC WINDS
- SURFACE WINDS
- U/V WIND COMPONENTS
- BIOSPHERE
- VEGETATION
- CANOPY CHARACTERISTICS
Data Use and Citation
This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy.
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Data Files
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Companion Files
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Dataset Companion Files
Dataset has 1 companion files.
- LC15_Roughness_Map.pdf
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