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Gross Primary Production (gC/sq.m/yr)

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Citation (What is it about and who created it or owns it)
Title Gross Primary Production (gC/sq.m/yr)
Publication Date2015
PublisherDepartment of Environmental Affairs (DEA)
Creator (Author/ Responsible Party) CSIR , Affiliation: Meiring Naudé Road, Brummeria, Pretoria, South Africa
Contributor HostingInstitution : South African Environmental Observation Network , Affiliation: SAEON - National Office, PO Box 2600, Pretoria, 0001, South Africa
Permanent Identifier 10.15493/DEA.CARBON.10000010 (DOI)
Online Resources
Service Gross Primary Production (gC/sq.m/yr)
Download Gross Primary Production (gC/sq.m/yr)
Information Gross Primary Production (gC/sq.m/yr)
Usage, Restrictions, Caveat
Licencing and Usage Rights Composite or Custom License ( http://noframe.data.dirisa.org/platform/policy-and-licenses/composite-license-carbon-atlas )
Methodology
Gross primary production (GPP) is the amount of biomass (units: gC/m2/yr) that plants create in a one year by capturing sunlight and CO₂ during photosynthesis. A production efficiency model was used to estimate GPP across South Africa. Carbon fluxes were calculated to represent the long-term mean conditions. The gross and net primary production (GPP, NPP) was calculated monthly and summed to a year using climatology of monthly weather for the period 1960 to 1990, and mean monthly FAPAR and PAR for period 2000 to 2012. There are thus 12 input files for each term, corresponding to the twelve months. The climatology averaging periods for climate and satellite data are different. For Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), the MEdium Resolution Imaging Spectrometer (MERIS sensor) dataset covers the period 2000 to 2012, and the Photosynthetically Active Radiation (PAR) dataset is also for this period. Units: gC/m2/yr
Data Dictionary/ Schema
Dictionary URL or Schemahttp://datacite.org/schema/kernel-3
Coverage (Main Dimensions of the Data)
Start Date2000
End Date2012
Date ( Accepted )
Date ( Issued )
Subjects Carbon flux
Subjects GPP
Subjects Gross Primary Production
Metadata Elements
Metadata Standarddatacite
Repository SA Carbon Sinks Atlas
Technical Data Set Parameters
Languageeng
Data Representationon
Spatial Coverage
Data Set Versions and Relationships

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