The ORNL DAAC and the LBA DIS announce the release of three data sets associated with the LBA-ECO component of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA). The first of the three data sets provides meteorological data from the km 77 pasture site, Para, Brazil. The other two data sets report survey data taken in the North Western area of Mato Grosso, Brazil.
- LBA-ECO CD-03 Flux-Meteorological Data, km 77 Pasture Site, Para, Brazil: 2001-2005. Data set prepared by David Fitzjarrald and Ricardo Sakai. This data set reports the results of eddy correlation and micrometeorological measurements from 2001 through 2005 at the km 77 pasture site, Para, Brazil, just south of the city of Santarem. Measurements include turbulent fluxes (momentum, heat, water vapor, and CO2) collected using the eddy covariance approach. Other measurements include the CO2 profile, air temperature, humidity, wind speed profile, downward and upward solar and terrestrial radiation, downward and upward photosynthetically active radiation (PAR), atmospheric pressure, rainfall, soil temperature, soil moisture, and soil heat flux.
- LBA-ECO ND-11 Ecotone Vegetation Survey and Biomass, NW Mato Grosso, Brazil. Data set prepared by Stefan Jirka, Ted Feldpausch, and Susan Riha. This data set presents the results of a vegetation survey along transects across the transition zones between three major forest types in the seasonally dry forest of the southwestern Amazon Basin in the municipality of Juruena, Mato Grosso in 2004. The major forest types were differentiated by tree species composition, biomass, soil type, and landscape position.
- LBA-ECO ND-11 Regeneration in Undisturbed and Logged Forests, NW Mato Grosso, Brazil. Data set prepared by Ted Feldpausch, Carlos Passos, Elenara Gandini, Stefan Jirka, Andrew McDonald, and Susan Riha. This data set reports the results of field surveys performed in 2003 and 2004 to determine the regeneration diversity and size distribution of plants in primary undisturbed forest in a one hundred hectare block, six years after reduced impact logging. In addition, wood density and carbon concentrations in commercially harvested species are reported. These surveys were performed in the logging concession.
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, which is funded by NASA, 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.
The ORNL DAAC is a NASA-funded data center archiving and distributing terrestrial ecology and biogeochemical dynamics data. The LBA Data and Information System (LBA-DIS) has been developed by INPE with NASA's participation.