Global Change Master Directory (GCMD)

Data Sets

Services / Tools

Ancillary Descriptions

Are you using a browser that doesn't support JavaScript or have you disabled JavaScript?

If you have disabled JavaScript, you must re-enable JavaScript to use this page.
Or you can view this record using the Text Only Format.

LBA REGIONAL LAND COVER FROM AVHRR, 1-KM, 1992-1993 (HANSEN ET AL.)

Entry ID: lba_avhrr_1km

[ Get Data ]
[ Update this Record ]

Summary

Abstract: This data set is a subset of Hansen et al. (1999), "1 km Global Land Cover Data Set Derived from AVHRR," which was developed at the Laboratory for Global Remote Sensing Studies (LGRSS) at the University of Maryland. This subset was created for the study area of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) in South America (i.e., latitude 10° N to 25° S, longitude 30° to 85° ... W). The data are in ASCII GRID file format.In recent years, researchers have increasingly turned to remotely sensed data to improve the accuracy of data sets that describe the geographic distribution of land cover at regional and global scales. To develop improved methodologies for global land cover classifications as well as to provide global land cover products for immediate use in global change research, LGRSS researchers have employed the NASA/NOAA Pathfinder AVHRR Land (PAL) data set with a spatial resolution of 1 km. The PAL data set has a record length of 14 years (1981-1994), providing the ability to test the stability of classification algorithms. The PAL data set includes red, infrared, and thermal bands in addition to the Normalized Difference Vegetation Index (NDVI). Inclusion of these additional bands improves discrimination between cover types. The LGRSS researchers' aim was to develop and validate global land cover data sets and to develop advanced methodologies for more realistically describing the vegetative land surface based on satellite data.The 1-km global land cover product was created from 1992-1993 local area coverage (LAC) AVHRR data. The global land cover product is available for download from the University of Maryland's Global Land Cover Facility (GLCF) Web site (http://glcf.umiacs.umd.edu/data/landcover/index.shtml). Forty-one metrics were developed to describe global vegetation phenology, and these data were used to make the 1-km land cover map. The final product contains 13 land cover classes.More information can be found at ftp://daac.ornl.gov/data/lba/land_use_land_cover_change/land_cover_... was a cooperative international research initiative led by Brazil. NASA was a lead sponsor for several experiments. LBA was designed to create the new knowledge needed to understand the climatological, ecological, biogeochemical, and hydrological functioning of Amazonia; the impact of land use change on these functions; and the interactions between Amazonia and the Earth system.

Related URL

Link: GET DATA

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 10.0

S: -25.0

E: -30.0

W: -85.0

Data Set Citation

Dataset Originator/Creator: DEFRIES, R.S.HANSEN, M.SOHLBERG, R.TOWNSHEND, J.R.G.

Dataset Title: LBA REGIONAL LAND COVER FROM AVHRR, 1-KM, 1992-1993 (HANSEN ET AL.)

Dataset Release Date: 2003

Dataset Release Place: Oak Ridge, Tennessee, U.S.A.

Dataset Publisher: Oak Ridge National Laboratory Distributed Active Archive Center

Data Presentation Form: Online Files

Dataset DOI: doi:10.3334/ORNLDAAC/678

Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=678&term2attribut...

Temporal Coverage

Start Date: 1992-01-01

Stop Date: 1993-12-31

Location Keywords

CONTINENT > SOUTH AMERICA > AMAZONIA

Science Keywords

BIOSPHERE > TERRESTRIAL ECOSYSTEMS > AGRICULTURAL LANDS

BIOSPHERE > VEGETATION > VEGETATION INDEX

LAND SURFACE > LAND USE/LAND COVER > LAND COVER

ISO Topic Category

FARMING

BIOTA

GEOSCIENTIFIC INFORMATION

IMAGERY/BASE MAPS/EARTH COVER

Platform

NOAA-10 > National Oceanic & Atmospheric Administration-10

NOAA-11 > National Oceanic & Atmospheric Administration-11

NOAA-9 > National Oceanic & Atmospheric Administration-9

Instrument

AVHRR > Advanced Very High Resolution Radiometer

Project

EOSDIS > Earth Observing System Data Information System

LBA > Large Scale Biosphere-Atmosphere Experiment in Amazonia

ESIP > Earth Science Information Partners Program

CWIC > CEOS WGISS Integrated Catalog

Ancillary Keywords

Models

Solar Corona

Service Provider

NASA/GSFC/SED/HSD/GPL/CCMC > Community Coordinated Modeling Center, Geospace Physics Lab, Heliospheric Science Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

Service Organization URL: http://ccmc.gsfc.nasa.gov/

Service Provider Personnel
Name: MICHAEL HESSE Phone: 301-286-8224 Fax: 301-286-1648 Email: Michael.Hesse at nasa.gov Contact Address: NASA Goddard Space Flight Center Mailstop 674.0 City: Greenbelt Province or State: MD Postal Code: 20771 Country: USA

Distribution

Distribution Media: Online

Personnel

TYLER B. STEVENS

Role: SERF AUTHOR

Phone: (301) 614-6898

Fax: 301-614-5268

Email: Tyler.B.Stevens at nasa.gov

Contact Address:

NASA Goddard Space Flight Center

Global Change Master Directory

City: Greenbelt

Province or State: MD

Postal Code: 20771

Country: USA

LUTZ RASTAETTER

Role: TECHNICAL CONTACT

Email: lutz.rastaetter-1 at nasa.gov

Contact Address:

NASA

Goddard Space Flight Center

Mailstop 674.0

City: Greenbelt

Province or State: MD

Postal Code: 20771

Country: USA

PETER MACNEICE

Role: TECHNICAL CONTACT

Phone: 301-286-2061

Email: peter.j.macneice at nasa.gov

Contact Address:

NASA/GSFC

City: Greenbelt

Province or State: MD

Postal Code: 20771

Country: USA

Creation and Review Dates

SERF Creation Date: 2006-08-10
SERF Last Revision Date: 2009-02-10

Reformat as FGDC document

View Text Only Format

[ Update this Record ]