ISLSCP II CONTINUOUS FIELDS OF VEGETATION COVER, 1992-1993Entry ID: ISLSCP2_CONTVEG
Abstract: The objective of this study was to derive continuous fields of vegetation cover from multi-temporal Advanced Very High Resolution Radiometer (AVHRR) data using all available bands and derived Normalized Difference Vegetation Index (NDVI). The continuous fields describe sub-pixel proportions of cover for tree, herbaceous, bare ground and water cover types. For tree cover, additional fields ... describing leaf longevity (evergreen and deciduous) and leaf morphology (broadleaf and needleleaf) were also generated. The modeling of carbon dynamics and climate require knowing tree characteristics such as these. These products were resampled and aggregated to 0.25, 0.5 and 1.0 degree grids for the International Satellite Land Surface Climatology Project (ISLSCP) data initiative II. The data set describes the geographic distributions of three fundamental vegetation characteristics: tree, herbaceous and bare ground cover, plus a water layer. For tree cover, leaf longevity and morphology layers were produced. This data set is one of the products of the International Satellite Land-Surface Climatology Project, Initiative II (ISLSCP II) data collection which contains 50 global time series data sets for the ten-year period 1986 to 1995. Selected data sets span even longer periods. ISLSCP II is a consistent collection of data sets that were compiled from existing data sources and algorithms, and were designed to satisfy the needs of modelers and investigators of the global carbon, water and energy cycle. The data were acquired from a number of U.S. and international agencies, universities, and institutions. The global data sets were mapped at consistent spatial (1, 0.5 and 0.25 degrees) and temporal (monthly, with meteorological data at finer (e.g., 3-hour)) resolutions and reformatted into a common ASCII format. The data and documentation have undergone two peer reviews. ISLSCP is one of several projects of Global Energy and Water Cycle Experiment (GEWEX) [http://www.gewex.org/] and has the lead role in addressing land-atmosphere interactions -- process modeling, data retrieval algorithms, field experiment design and execution, and the development of global data sets.
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Data Set Citation
Dataset Originator/Creator: DEFRIES, R.S.HANSEN, M.C.
Dataset Title: ISLSCP II CONTINUOUS FIELDS OF VEGETATION COVER, 1992-1993
Dataset Release Date: 2009
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/931Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=931&term2attribut...
Start Date: 1992-04-01Stop Date: 1993-05-31
ATMOSPHERE > ATMOSPHERIC RADIATION > ALBEDO
BIOSPHERE > VEGETATION > CANOPY CHARACTERISTICS
LAND SURFACE > LAND USE/LAND COVER > LAND COVER
BIOSPHERE > VEGETATION > LEAF CHARACTERISTICS
BIOSPHERE > VEGETATION > PLANT CHARACTERISTICS
ATMOSPHERE > ATMOSPHERIC RADIATION > REFLECTANCE
BIOSPHERE > VEGETATION > VEGETATION COVER
BIOSPHERE > VEGETATION > VEGETATION INDEX
ISO Topic Category
Access Constraints The LNOM datasets are restricted to those who appear on the LNOM Users List (LUL). Only those investigators that have a working relationship with the NASA Marshall Space Flight Center (MSFC) Lightning Group on topics directly pertaining to global chemistry/climate analyses, regional air quality, or other areas directly related to lightning chemistry are allowed access to the LNOM data. Redistribution of LNOM data is prohibited.
Distribution Media: FTP
Distribution Size: 291 Kb
Distribution Format: ascii, png
Email: william.koshak at nasa.gov
NASA Marshall Space Flight Center Earth Science Office, ZP11 Robert E. Cramer Research Hall 320 Sparkman Drive
Province or State: AL
Postal Code: 35805-1912
Role: DIF AUTHOR
Email: ghrcdaac at itsc.uah.edu
320 Sparkman Dr.
Province or State: AL
Postal Code: 35805
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2012-01-12
Last DIF Revision Date: 2012-02-09