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Global Change Master Directory (GCMD)
Global Model Reference Data, 0.5 x 0.5 degree grid-cell
Entry ID: EOSWEBSTER_Global_Ref


Summary
Abstract: The Global Model Reference Collection contains 3 datasets that have been used extensively in various biogeochemical process models, in addition to some basic data layers used in analyzing and aggregating model estimates.

Model simulations of ecosystem processes require information about the landscape in addition to model-specific parameters based on vegetation characteristics and soil properties. The data included in the Global Model Reference Data collection are basic data layers.

The Geography Dataset:

The Geography dataset contains variables for continent code and grid-cell area that can be used when aggregating other data layers into regions (such as by continents). Area-weighted estimates using on grid-cell area are important to calculate because gridded data based on atitude/longitude boundaries vary in area depending on their location on the globe. Area-weighted estimates are used to determine how much land area is impacted by various environmental changes. The elevation data layer is used in models to determine high-elevation snow cover, or may be used to determine landscape properties or the direction of overland runoff.

Landcover Dataset:

The Landcover dataset contains the variable "potential vegetation", which is a classification of each grid cell as a natural vegetation type. This data layer does not contain any type of crop, pasture, urban, or other non-natural vegetation types. This data layer has been used to estimate the upper range of net primary production and other ecosystem processes in the absence of human intervention.

The Soils Dataset:

The Soils dataset contains a soil texture variable used to determine many water-related plant processes, including the depth of the root layer and the water-holding capacity of the soil. Because wetland ecosystems function very differently from dry-land ecosystems, we have included a wetland designation data layer to be used along with the potential vegetation data layer: in some models, such as TEM, wetland areas are not included in global or regional model runs.

Related URL
Link: View Related Information
Description: Vegetation/Ecosystem Modeling and Analysis Project (VEMAP)


Link: View Related Information
Description: The Terrestrial Ecosystem Model (TEM)


Link: View Related Information
Description: Access to Global Model Reference Data


Link: View Related Information
Description: EOS-WEBSTER Earth Science Information Partner (ESIP) provides
terrestrial ecosystem research data via a web-based search, subset and
order system.

Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Creator: Annette Schloss
Dataset Title: Global Model Reference Data
Dataset Release Place: Durham, NH
Dataset Publisher: Complex Systems Research Center, University of NH
Version: Not provided
Online Resource: http://eos-earthdata.sr.unh.edu/data/data6.jsp


Temporal Coverage
Start Date: 1970-01-01


Location Keywords
GEOGRAPHIC REGION > GLOBAL
GEOGRAPHIC REGION > GLOBAL LAND


Science Keywords
AGRICULTURE >SOILS >SOIL TEXTURE    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >BIOGEOCHEMICAL CYCLES    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS    [Definition]
BIOSPHERE >VEGETATION >VEGETATION COVER    [Definition]
HUMAN DIMENSIONS >BOUNDARIES >ADMINISTRATIVE DIVISIONS >CONTINENT CODE    [Definition]
HUMAN DIMENSIONS >BOUNDARIES >BOUNDARY SURVEYS >GRID CELL AREA (0.5 DEG X 0.5 DEG) (KM2)    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL GOVERNANCE/MANAGEMENT >LAND MANAGEMENT >LAND USE CLASSES    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND USE CLASSES >POTENTIAL VEGETATION LANDCOVER (CLASS)    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND USE/LAND COVER CLASSIFICATION >POTENTIAL VEGETATION LANDCOVER (CLASS)    [Definition]
LAND SURFACE >SOILS >SOIL TEXTURE >SOIL TEXTURE CLASS    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION >MEAN GRID-CELL ELEVATION (M)    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >SURFACE WATER FEATURES >WETLANDS >WETLAND SOILS TYPE (WETLAND CLASS)    [Definition]


Project
ESIP >Earth Science Information Partners Program    [Information]


Keywords
BIOGEOCHEMICAL MODELS
CONTINENT CODE
ELEVATION
GLOBAL
LANDCOVER
MODEL PARAMETERS
POTENTIAL VEGETATION
REFERENCE DATA
SOIL TEXTURE
VEGETATION CHARACTERISTICS
WETLANDS
TEMS
GTOS
G3OS


Data Set Progress
COMPLETE


Data Center
EOS-EARTHDATA, Complex Systems Research Center, Institute for the Study of Earth, Oceans, and Space, Univ. of New Hampshire    [Information]
Data Center URL: http://eos-earthdata.sr.unh.edu/

Data Center Personnel
Name: EARTH SYSTEMS RESEARCH CENTER
Phone: 1-603-862-3785
Fax: 603-862-0188
Email: eosearthdatasupport at foghorn.sr.unh.edu
Contact Address:
Complex Systems Research Center
Institute for the Study of Earth, Oceans, and Space
Morse Hall
University of New Hampshire
City: Durham
Province or State: New Hampshire
Postal Code: 03824
Country: USA



Distribution
Distribution_Media: online www
Fees: none


Personnel
ANNETTE SCHLOSS
Role: TECHNICAL CONTACT
Phone: 603-862-0348
Fax: 603-862-0188
Email: annette.schloss at unh.edu
Contact Address:
Complex Systems Research Center
Morse Hall
University of New Hampshire
City: Durham
Province or State: New Hampshire
Postal Code: 03824
Country: USA


SHANNON SPENCER
Role: METADATA AUTHOR
Phone: 603-862-1792
Fax: 603-862-0188
Email: shannon.spencer at unh.edu
Contact Address:
Complex Systems Research Center
Institute for the Study of Earth, Oceans, and Space
Morse Hall
University of New Hampshire
City: Durham
Province or State: New Hampshire
Postal Code: 03824
Country: USA


Publications/References
McGuire AD et al. (1997-01-01T00:00:00.000Z), Equilibrium responses of global net primary production and carbon storage to doubled atmospheric carbon dioxide: Sensitivity to changes in vegetation nitrogen concentration., Global Biogeochemical Cycles 11, pp.173-189

McGuire AD et al. (1992-01-01T00:00:00.000Z), Interactions between carbon and nitrogen dynamics in estimating net primary productivity for potential vegetation in North America., Global Biogeochemical Cycles 6, pp.101-124

Vorosmarty CJ et al. (1989-01-01T00:00:00.000Z), Continental scale models of water balance and fluvial transport: an application to South America, Global Biogeochemical Cycles 3

Edwards, M.O. (1989-01-01T00:00:00.000Z), Global gridded elevation and bathymetry on 5-minute geographic grid, (ETOPO5), NOAA, National Geophysical Data Center, Boulder, Colorado, USA

FAO/UNESCO. (1977-01-01T00:00:00.000Z), Soil map of the world 1: 5 000 000, UNESCO, Paris, FRANCE.

Melillo, J.M., McGuire, A.D., Kicklighter, D.W., Moore, B., Vorosmarty, C.J. and Schloss, A.L. (1993-01-01T00:00:00.000Z), Global climate change and terrestrial net primary production., Nature, 363, 234-40

Saxton et al. (1986-01-01T00:00:00.000Z), Soil Sci. Soc. Am. J, 50, 1031-1036
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2000-07-27
Last DIF Revision Date: 2018-11-12



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