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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.

Product Summary

Platforms
COMPUTERS,
JERS-1,
OV-105
Instruments
Computer,
SAR,
SRTM
Spatial Extent
N: 13.8583 S: -23.4268 E: -47.0231 W: -82.7208
Geographic Region
AMAZONIA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2000-02-11 to 2000-02-22
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
c2781573934-ornl_cloud
Data State
COMPLETE
Processing Level
3
Published
Updated

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

RODRIGUEZ, E., DENNING, S., DUBAYAH, R., & SAATCHI, S. (2013). LBA-ECO LC-15 Aerodynamic Roughness Maps of Vegetation Canopies, Amazon Basin: 2000. ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1182 Date Accessed: 2025-07-30

Documents

GENERAL DOCUMENTATION Data set documentation PDF.
USER'S GUIDE ORNL DAAC Data Set Documentation

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