Overview
| DOI | https://doi.org/10.3334/ORNLDAAC/1182 |
|---|---|
| Project | |
| Release Date | 2017-10-30 |
| Usage | 694 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
Citation
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Data Files
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| Data File (Granule) | Size | Dates |
|---|---|---|
| LC15_amazon_z0_map.tif | 8.0MB | 2000-02-11 to 2000-02-22 |
| LC15_amazon_d0_map.tif | 6.7MB | 2000-02-11 to 2000-02-22 |
Companion Files
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Dataset Companion Files
Dataset has 1 companion files.
- LC15_Roughness_Map.pdf
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