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Investigation:

LC-31 (Foley / Costa)

LBA Dataset ID:

LC31_AMZ_HISTORICAL_LU

Originator(s):

1. LEITE, C.C.
      2. COSTA, M.H.

Point(s) of Contact:

ORNL DAAC User Services Office Oak Ridge National Laboratory Oak Ridge, Tennessee 37 (ornldaac@ornl.gov)

Dataset Abstract:

This database provides annual spatial patterns of land use in the Amazonia, for the period 1940 - 1995. A series of historical maps was generated starting from a product of land use classification for 1995. The database AMZ-C contains the Brazilian portion of Amazon and Tocantins Rivers basins, and is based on the land use classification of Cardille et al. (2002), generated through the fusion of remote sensing (AVHRR) and agricultural census data. The second, AMZ-R, covers the entire Legal Amazon region and adjacent areas and is based on the soil use classification by Ramankutty et al. (2008), generated by the fusion of satellite imagery (MODIS and VEGETATION-SPOT)and data from the agricultural census. An interpolation algorithm was used to generate the historical database. Each file contains fraction of the land use by croplands, natural pastures and planted pastures, in NetCDF (.nc) format, at a resolution of 5\' of arc.

Beginning Date:

1940-01-01

Ending Date:

1995-12-31

Metadata Last Updated on:

2013-06-21

Data Status:

Archived

Access Constraints:

PUBLIC

Data Center URL:

http://daac.ornl.gov/

Distribution Contact(s):

ORNL DAAC User Services Office Oak Ridge National Laboratory Oak Ridge, Tennessee 37 (ornldaac@ornl.gov)

Access Instructions:

PUBLIC

Data Access:

IMPORTANT: The LBA-ECO Project website is no longer being supported. Links to external websites may be inactive. Final data products from the LBA project can be found at the ORNL DAAC. Please follow the fair use guidelines found in the dataset documentation when using or citing LBA data.
Datafile(s):

LBA-ECO LC-31 Historical Land-Use in the Amazon: 1940-1995:  http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1170

Documentation/Other Supporting Documents:

LBA-ECO LC-31 Historical Land-Use in the Amazon: 1940-1995:  http://daac.ornl.gov/LBA/guides/LC31_AMZ_HISTORICAL_LU.html

Citation Information - Other Details:

Leite, C. C. and Costa, M. H. 2013. LBA-ECO LC-31 Historical Land-Use in the Amazon: 1940-1995. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/ORNLDAAC/1170

Keywords - Theme:

Parameter Topic Term Source Sensor
AGRICULTURAL LANDS AGRICULTURE LAND USE/LAND COVER SATELLITES MODIS (MODERATE-RESOLUTION IMAGING SPECTRORADIOMETER)
LAND USE CLASSES AGRICULTURE LAND USE/LAND COVER SATELLITES AVHRR (ADVANCED VERY HIGH RESOLUTION RADIOMETER)
LAND USE CLASSES AGRICULTURE LAND USE/LAND COVER SPOT-4 (SYSTEME PROBATOIRE POUR L\'OBSERVATION DE LA TERRE-4) SPOT MULTISPECTRAL

Uncontrolled Theme Keyword(s):  AMAZONIA, HISTORICAL USE, LAND USE, VEGETATION COVER

Keywords - Place (with associated coordinates):

Region
(click to view profile)
Site
(click to view profile)
North South East West
  LEGAL AMAZONIA BRAZILIAN PORTION OF THE AMAZONAS AND TO 5.41000 -19.56000 -45.59000 -74.35000

Data Characteristics (Entity and Attribute Overview):

Data Characteristics:

Data are reported in two Net CDF files: AMZ-C.nc and AMZ-R.nc

Each file contains fraction of natural pasture, planted pasture and cropland in each 5-min grid cell for the years 1940-1995.

Data Application and Derivation:

This land use historical database can be used as input to climate and hydrology models to help understand the causes of hydroclimatic changes in Amazonia, as well as in the investigation of the impacts of the historical changes in land cover and land use in the water resources and carbon balance in Amazon.

Quality Assessment (Data Quality Attribute Accuracy Report):

Quality Assessment:

Pixel-level data is considerably uncertain, although regional patterns are well validated against Landsat imagery.

Process Description:

Data Acquisition Materials and Methods:

For the AMZ-C database, we used data from agricultural census municipal level and a land use classification product for 1995 developed by Cardille et al. (2002). This product was developed through the fusion of agricultural census data and images derived from the AVHRR sensor. This product was used as an initial condition in a simple model of historical reconstruction of land use. That used historical agricultural census data as input.



For the AMZ_R database, we used data from agricultural census municipal level and a land use classification product for 1995 developed by Ramankutty et al. (2008). This product was developed through the fusion of agricultural census data and images derived from the MODIS and VEGETATION-SPOT sensors. This product was used as an initial condition in a simple model of historical reconstruction of land use using historical agricultural census data as input.

References:

Cardille, J. A., J. A. Foley, and M. H. Costa (2002), Characterizing patterns of agricultural land use in Amazonia by merging satellite classifications and census data, Global Biogeochem. Cycles, 16(3), 1045, doi:10.1029/2000GB001386.



Ramankutty, N., A. T. Evan, C. Monfreda, and J. A. Foley (2008), Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000, Global Biogeochem. Cycles, 22, GB1003, doi:10.1029/2007GB002952.

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