[Parameters: Topic='LAND SURFACE', Term='SURFACE RADIATIVE PROPERTIES', Variable_Level_1='REFLECTANCE']
ISLSCP II C4 VEGETATION PERCENTAGEEntry ID: ISLSCP_C4_1DEG
Abstract: The photosynthetic composition (C3 or C4) of vegetation on the land surface is essential for accurate simulations of biosphere-atmosphere exchanges of carbon, water, and energy. C3 and C4 plants have different responses to light, temperature, CO2, and nitrogen; they also differ in physiological functions like stomatal conductance and isotope fractionation. A fine-scale distribution of these plant ... types is essential for earth science modeling. The C4 percentage is determined from datasets that describe the continuous distribution of plant growth forms (i.e., the percent of a grid cell covered by herbaceous or woody vegetation), climate classifications, the fraction of a grid cell covered in croplands, and national crop type harvest area statistics. The staff from the International Satellite Land Surface Climatology Project (ISLSCP) Initiative II have made the original data set consistent with the ISLSCP-2 land/water mask. This data set contains a single file in ArcInfo ASCIIGRID format. 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.
Data Set Citation
Dataset Originator/Creator: BERRY, J.A.COLLATZ, G.J.DEFRIES, R.S.STILL, C.J.
Dataset Title: ISLSCP II C4 VEGETATION PERCENTAGE
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/932Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=932&term2attribut...
Start Date: 1993-01-01Stop Date: 1998-12-31
ATMOSPHERE > ATMOSPHERIC RADIATION > ALBEDO
BIOSPHERE > VEGETATION > CANOPY CHARACTERISTICS
LAND SURFACE > LAND USE/LAND COVER > LAND COVER
BIOSPHERE > VEGETATION > LEAF CHARACTERISTICS
BIOSPHERE > VEGETATION > PLANT CHARACTERISTICS
LAND SURFACE > SURFACE RADIATIVE PROPERTIES > REFLECTANCE
BIOSPHERE > VEGETATION > VEGETATION COVER
BIOSPHERE > VEGETATION > VEGETATION INDEX
ISO Topic Category
Data Set Progress
Role: TECHNICAL CONTACT
Phone: (415) 325-1521 ext 221
Fax: (415) 325-6857
Email: joeberry at biosphere.stanford.edu
Department of Plant Biology Carnegie Institution of Washington 290 Panama St.
Province or State: CA
Postal Code: 94305-1297
Role: DIF AUTHOR
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
ORNL DAAC User Services Office Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2009-10-07
Last DIF Revision Date: 2012-08-14