LBA-ECO LC-14 Modeled Soil and Plant Water Balance, Amazon Basin, 1995-2001

A simple GIS soil-water balance model for the Amazon Basin, called RisQue (Risco de Queimadasa -- Fire Risk), was used to conduct an analysis of spatial and temporal patterns of drought in moist tropical forests and the complex relationships between patterns of drought and forest fire regimes from 1995 through 2001. The provided data products are the model output estimates of maximum plant-available soil water (PAWmax) at 10 m depth at 8 km resolution and model data inputs of monthly precipitation and evapotranspiration. RisQue estimates PAWmax at 10 m depth starting with a map of PAWmax (1-2 m depth) developed using 1,565 RADAMBRASIL soil texture profiles and empirical relationships between soil texture and critical soil water parameters and then interpolated to 8 km resolution. In RisQue, plant-available soil water (PAW) is depleted by monthly evapotranspiration estimated using the Penman Monteith equation and satellite-derived radiation and recharged by monthly precipitation.There are three data files with this data set, two .zip, and one GeoTIFF image (.tif). The .zip files expand to 83 .asc files of evapotranspiration and 89 .asc files for precipitation data. The image (.tif) is a map of maximum percent available water at 10 m depth. All the files in this data set are in standard arc/info asciigrid format at 8 km resolution.

Data and Resources

Additional Info

Field Value
Maintainer undefined
Last Updated July 30, 2019, 22:27 (CDT)
Created July 30, 2019, 22:27 (CDT)
Identifier C179003644-ORNL_DAAC
Issued 2013-03-01
Modified 2019-04-15
accessLevel public
citation Archived by National Aeronautics and Space Administration, U.S. Government, ORNL_DAAC. Nepstad, D.C., P.A. Lefebvre, U.L. Silva, J. Tomasella, P. Schlesinger, L. Solorzano, P.R. Moutinho, and D.G. Ray. 2013. LBA-ECO LC-14 Modeled Soil and Plant Water Balance, Amazon Basin, 1995-2001. ORNL DAAC, Oak Ridge, Tennessee, USA.
graphic-preview-description Browse Image
metadata_type geospatial
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 7a883108c59212c5a5f44e7397f16956957d4870
source_schema_version 1.1
spatial -82.0 -34.0 -34.03 9.24
temporal 1995-01-01T00:00:00Z/2001-12-31T23:59:59Z