The ORNL DAAC announces the release of five data sets associated with the LBA-ECO component of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA).
The data set entitled "LBA-ECO LC-10 Landsat TM Data for Legal Amazon: 1986-1994" includes Landsat TM scenes from across the Legal Amazon region. A single image is provided for each spatial tile, representing the most cloud-free retrieval from 9/21/1986 to 9/17/1994. Provided files include one band-sequential (bsq) file and one metadata (ddr) file for each scene.
The data set entitled "LBA-ECO LC-10 Orthorectified Landsat ETM+ Data for Legal Amazon: 1999-2001" provides orthorectified Landsat ETM+ scenes across the Legal Amazon region. At least one scene is provided for each spatial tile, representing the most cloud-free retrievals from mid-1999 through late 2001. Dates are not continuous but include scenes from July 8, 1999 to November 13, 2001. Data have been atmospherically corrected and orthorectified. Data files included for each scene are six multispectral bands (tif), two thermal bands (tif), one panchromatic band (tif), two preview files (jpg), and one metadata file (txt). Additionally individual Geotiff files are also provided.
"LBA-ECO LC-23 Characterization of Vegetation Fire Dynamics for Brazil: 2001-2003" provides the coordinates of daily active vegetation fires in Brazil for 2001 through 2003 at 1 km resolution for both AVHRR and MODIS sensors. Data are provided in both ARCGIS shape file and ASCII comma separated file formats. Vector files for the major biomes of Brazil, the nine states of the Legal Amazon, and three important road corridors in the Amazon region are also included.
LBA-ECO ND-11 Soil Water Pressure and Flow Measurements Under Tree crops" contains information that can be used to examine water fluxes in soils beneath tree crops in an Amazonian agro forest. The data consists of repeated measurements of soil matrix pressure and soil moisture content at several depths. The study was carried out at the Empresa Brasileira de Pesquisa Agropecuaria (Embrapa)-Amazonia Ocidental, 29 km North of Manaus, Brazil in 1998 and 1999.
LBA-ECO CD-06 Land Use/Land Cover Time Series, Ji-Parana Basin, BRAZIL: 1986-2001 contains four land use/land cover images of the Ji-Parana River Basin in 1986, 1992, 1996, and 2001. These images were dervied from the classification of 8 Landsat images obtained from The Tropical Rain Forest Information Center (TRFIC).
LBA is an international research initiative under the leadership of Brazil. The project focuses on the climatological, ecological, biogeochemical, and hydrological functions of Amazonia; the impact of land use change on these functions; and the interactions between Amazonia and the Earth system. The LBA-ECO component focuses on the question: "How do tropical forest conversion, regrowth, and selective logging influence carbon storage, nutrient dynamics, trace gas fluxes, and the prospect for sustainable land use in Amazonia?"
See the LBA Project page for further information about the study and to access associated data and documentation maintained by the ORNL DAAC.