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LBA-ECO LC-07 Amazon Floodplain Lake Chlorophyll from MODIS, Para, Brazil: 2002-2003

Data Set Overview

Data setLBA-ECO LC-07 Amazon Floodplain Lake Chlorophyll from MODIS, Para, Brazil: 2002-2003
DOI10.3334/ORNLDAAC/1000
Release date2011-03-07
ProjectLarge Scale Biosphere-Atmosphere
Time Period2002-04-01 to 2003-12-31

Description

This data set contains chlorophyll concentration maps of the Amazon River floodplain region from Parintins (Amazonas) to Almeirim (Para). These chlorophyll fraction maps were derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) surface reflectance product (MOD09) for 19 months from April 2002 to December 2003. The study was conducted in a floodplain reach upstream from Santarem, Para, in order to assess seasonal changes in phytoplanktonic chlorophyll-a distributions in the floodplain Lake Curuai. MODIS reflectance data were acquired at four river stages: rising (April), high (June), decreasing (September), and low (November). Chlorophyll maps were derived and used to compute the weighted average of chlorophyll concentration from MODIS images in the region. Field measurements of suspended inorganic matter and chlorophyll-a in Lake Curuai were made almost concurrently with satellite overpasses (Barbosa, 2005). The images and the estimated chlorophyll concentrations were compared to measured chlorophyll concentrations at control points for different hydrological states. This data set may be applied to better understand the seasonal dynamics of primary production of the Amazon floodplains. The maps of chlorophyll-a concentration may be used to model spatial and temporal variations of primary production in this region. The monthly chlorophyll-a maps are provided as GeoTIFF files. There are two formats: (1) color-mapped pixels and (2) pixels as chlorophyll-a concentrations. These latter images are not intended for browsing. These images have pixel values that are the chlorophyll-a concentration in mg/m3 and need to be download and opened in GIS software.

Documentation

Data set reference document

Citation

Novo, E.M.L.M., C.C.F. Barbosa, R.M. Freitas, Y.E. Shimabukuro, J.M. Melack, and W.P. Filho. 2011. LBA-ECO LC-07 Amazon Floodplain Lake Chlorophyll from MODIS, Para, Brazil: 2002-2003. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1000
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Project

Large Scale Biosphere-Atmosphere : The Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) is an intensive scientific investigation of the tropical rainforest of Brazil and portions of adjacent countries. Like FIFE and BOREAS, this project uses intensive remote-sensing techniques and ground-based experiments to investigate the atmosphere-biosphere-hydrosphere dynamics of this large tropical region. The LBA Project encompasses several scientific disciplines, or components. 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?"

Project data set list for Large Scale Biosphere-Atmosphere .

Companion Files

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  • LC07_Lake_Chlorophyll_MODIS.pdf

Data Files

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Data File (Granule)File SizeDates
RIO_MasCla_PHYChl_MAR2003.tif 1.6 MB 2003-03-01 - 2003-03-31
PHYTO_Chl_AUG_2002.tif 6.3 MB 2002-08-01 - 2002-08-31
RIO_MasCla_PHYChl_JUL2002.tif 1.6 MB 2002-07-01 - 2003-07-31
PHYTO_Chl_JUL_2003.tif 6.3 MB 2002-07-01 - 2003-07-31
RIO_MasCla_PHYChl_DEC2003.tif 1.6 MB 2003-12-01 - 2003-12-31
PHYTO_Chl_JUL_2002.tif 6.3 MB 2002-07-01 - 2002-07-31
PHYTO_Chl_SEP_2002.tif 6.3 MB 2002-09-01 - 2002-09-30
PHYTO_Chl_JAN_2003.tif 6.3 MB 2003-01-01 - 2003-01-31
PHYTO_Chl_JUN_2003.tif 6.3 MB 2003-06-01 - 2003-06-30
RIO_MasCla_PHYChl_JUN2003.tif 1.6 MB 2003-06-01 - 2003-06-30
PHYTO_Chl_NOV_2003.tif 6.3 MB 2003-11-01 - 2003-11-30
RIO_MasCla_PHYChl_SEP2002.tif 1.6 MB 2002-09-01 - 2003-09-30
PHYTO_Chl_OCT_2002.tif 6.3 MB 2002-10-01 - 2002-10-31
PHYTO_Chl_JUN_2002.tif 6.3 MB 2002-06-01 - 2002-06-30
RIO_MasCla_PHYChl_JAN2003.tif 1.6 MB 2003-01-01 - 2003-01-31
PHYTO_Chl_DEC_2003.tif 6.3 MB 2003-12-01 - 2003-12-31
RIO_MasCla_PHYChl_JUN2002.tif 1.6 MB 2002-06-01 - 2002-06-30
PHYTO_Chl_FEB_2003.tif 6.3 MB 2003-02-01 - 2003-02-28
RIO_MasCla_PHYChl_MAY2003.tif 1.6 MB 2003-05-01 - 2003-05-31
PHYTO_Chl_MAR_2003.tif 6.3 MB 2003-03-01 - 2003-03-31
RIO_MasCla_PHYChl_AUG2003.tif 1.6 MB 2003-08-01 - 2003-12-31
RIO_MasCla_PHYChl_SEP2003.tif 1.6 MB 2003-09-01 - 2003-09-30
PHYTO_Chl_DEC_2002.tif 6.3 MB 2002-12-01 - 2003-12-31
PHYTO_Chl_all19.tif 122.0 MB 2002-06-01 - 2003-12-31
PHYTO_Chl_MAY_2003.tif 6.3 MB 2003-05-01 - 2003-05-30
RIO_MasCla_PHYChl_AUG2002.tif 1.6 MB 2002-08-01 - 2002-08-31
RIO_MasCla_PHYChl_DEC2002.tif 1.6 MB 2002-08-01 - 2002-08-31
RIO_MasCla_PHYChl_NOV2002.tif 1.6 MB 2002-11-01 - 2002-11-30
PHYTO_Chl_NOV_2002.tif 6.3 MB 2002-11-01 - 2003-11-30
RIO_MasCla_PHYChl_NOV2003.tif 1.6 MB 2003-11-01 - 2003-11-30
RIO_MasCla_PHYChl_OCT2003.tif 1.6 MB 2003-10-01 - 2003-10-31
RIO_MasCla_PHYChl_OCT2002.tif 1.6 MB 2002-10-01 - 2002-10-31
PHYTO_Chl_APR_2003.tif 6.3 MB 2003-04-01 - 2003-04-30
PHYTO_Chl_OCT_2003.tif 6.3 MB 2003-10-01 - 2003-10-31
RIO_MasCla_PHYChl_FEB2003.tif 1.6 MB 2003-02-01 - 2003-02-28
RIO_MasCla_PHYChl_APR2003.tif 1.6 MB 2003-04-01 - 2003-04-30
PHYTO_Chl_AUG_2003.tif 6.3 MB 2003-08-01 - 2003-08-31
PHYTO_Chl_SEP_2003.tif 6.3 MB 2003-09-01 - 2003-09-30
RIO_MasCla_PHYChl_JUL2003.tif 1.6 MB 2003-07-01 - 2003-07-31

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