LBA-ECO LC-15 Aerodynamic Roughness Maps of Vegetation Canopies, Amazon Basin: 2000

Description

This data set 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.

Resources

Name Format Description Link
5 https://daac.ornl.gov%2FLBA%2Fguides%2FLC15_Roughness_Map.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F1182
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FLC15_Roughness_Map_1182.zip
5 https://daac.ornl.gov%2Fgraphics%2Fbrowse%2Fsdat-tds%2F1182_1_fit.png
5 https://webmap.ornl.gov%2Fwcsdown%2Fdataset.jsp%3Fds_id%3D1182
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DLC15_Roughness_Map_1182%26ac%3Dtrue
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Flba%2Fland_use_land_cover_change%2FLC15_Roughness_Map%2Fcomp%2FLC15_Roughness_Map.pdf
21 https://doi.org/10.3334/ORNLDAAC/1182
57 LC15_Roughness_Map_1182.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/LC15_Roughness_Map_1182.zip
34 1182_1_fit.png https://daac.ornl.gov/graphics/browse/sdat-tds/1182_1_fit.png
5 https://search.earthdata.nasa.gov/search?q=LC15_Roughness_Map_1182&ac=true
33 LC15_Roughness_Map.pdf https://data.ornldaac.earthdata.nasa.gov/public/lba/land_use_land_cover_change/LC15_Roughness_Map/comp/LC15_Roughness_Map.pdf

Tags

  • earth-science-vegetation-biosphere-canopy-characteristics
  • earth-science-atmospheric-winds-atmosphere-wind-dynamics-vertical-wind-velocity-speed

Topics

Categories