Nov 2009

The ORNL DAAC and the LBA DIS announce the release of two data sets associated with the LBA-ECO component of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA).

LBA-ECO CD-04 CO2 Profiles, km 83 Tower Site, Tapajos National Forest
http://dx.doi.org/10.3334/ORNLDAAC/947
Data set prepared by S.D. Miller, M.L. Goulden, and H.R. da Rocha. This data set reports atmospheric carbon dioxide measured at 12 levels up to 64 m at the km 83 logged tower site in Tapajos National Forest, Brazil. Data were collected from June 2000 through March 2004 using an infra-red gas analyzer on the tower at 48 minute intervals. Data are provided in a single comma delimited file.

LBA-ECO CD-04 Meteorological and Flux Data, km 83 Tower site, Tapajos National Forest
http://dx.doi.org/10.3334/ORNLDAAC/946
Data set prepared by S.D. Miller, M.L. Goulden, and H.R. da Rocha. This data set reports 30-minute, daily (24-hour), and monthly average flux tower measurements of carbon dioxide, water vapor, heat and meteorological variables in three comma delimited files.

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 Data Search pages at http://lba.cptec.inpe.br/beija-flor/ or http://beija-flor.ornl.gov/lba/
for further information on how to access associated data and documentation maintained by the LBA DIS and ORNL DAAC.

The LBA Data and Information System (LBA-DIS) has been developed by INPE and INPA with NASA's participation. The ORNL DAAC is a NASA-funded data center archiving and distributing terrestrial ecology and biogeochemical dynamics data.

Oct 2009

The ORNL DAAC and the LBA DIS announce the release of two data sets associated with the LBA-ECO component of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA).

LBA-ECO CD-03 Mesoscale Meteorological Data, Santarem Region, Para, Brazil: 1998-2006
http://dx.doi.org/10.3334/ORNLDAAC/944
Data set prepared by David R. Fitzjarrald, Ricardo K. Sakai, and Osvaldo Luiz Leal deMoraes. This data set reports meteorological data from the Santarem region of Para, Brazil, collected at eight stations for 2002-2005 and at some of the stations for as long as 1998-2006. Measurements include air temperature and pressure, wind speed and direction, relative humidity, downward solar radiation, and at some stations, soil temperature and moisture.

LBA-ECO CD-03 Cloud Base-Backscatter Data, km 67 Tower Site, Tapajos National Forest
http://dx.doi.org/10.3334/ORNLDAAC/942
Data set prepared by Matthew J. Czikowsky. This data set reports 30 minute average cloud base and backscatter profile data from the old-growth forest site located at the forest site located at the km 67 Eddy Flux Tower site, Tapajos National Forest, Santarem, Brazil. Ceilometer backscatter profiles were recorded at 30-m resolution up to 7500 m and measurement statistics were calculated. Three cloud base levels were calculated from the profiles. The ceilometer was operational for a sufficient amount of time to examine wet-dry seasonal variations in cloud cover fraction and cloud base height.

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 Data Search pages at http://lba.cptec.inpe.br/beija-flor/ or http://beija-flor.ornl.gov/lba/
for further information on how to access associated data and documentation maintained by the LBA DIS and ORNL DAAC.

The LBA Data and Information System (LBA-DIS) has been developed by INPE and INPA with NASA's participation. The ORNL DAAC is a NASA-funded data center archiving and distributing terrestrial ecology and biogeochemical dynamics data.

July 2009

Release of Version 2.1 (V2.1) of the Global Precipitation Climatolgy Project (GPCP) monthly product
and Version 1.1 (V1.1) of the GPCP One-Degree Daily (1DD) product.

The entire data record for both products has been recomputed. The GPCP V2.1 product span is January 1979 ­ February 2009 and the 1DD V1.1 product span is October 1996 ­ February 2009. All documentation has been updated to reflect the product updatesl. The new data products and documentation are available at http://precip.gsfc.nasa.gov

File naming conventions have changed to reflect the new versions. For those who access the data directly via FTP, the directory structure has changed as well. Check the website for updated file locations. Please note that these new versions of the monthly and daily products are inconsistent with the previous versions, and all previous versions are superseded and should be removed.

The major enhancement included in the GPCP V2.1 data is the inclusion of the new GPCC Full and Monitoring product gauge analyses, which provide better estimates of land surface precipitation. The 1DD V1.1 product has been scaled to the new GPCP V2.1 product. Please refer to the documentation for the complete details concerning these releases. The monthly and daily images and movies on the website will be updated to their new versions shortly. The GPCP pentad product will be updated at a later time.