Africa Zobler Soils (Texture Classes, Slope, Phases), 1987
Entry ID: NBId0223_101

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Summary
Abstract: The Zobler soil datasets were developed by the World Data Center-A
(WDC-A) for Solid Earth Geophysics, operated by the U.S. National
Geophysical Data Center (NGDC). The data set is part of the World Data
Bank II and is part of "The Global Change Data Base". The World Data
Bank II is part of a larger project called "Global Ecosystems Database
Project". The project was a joint effort between the National Oceanic
and Atmospheric Administration (NOAA), NGDC and the U.S. Environmental
Protection Agency (EPA). The National Center for Geographic
Information and Analyses (NCGIA) in Santa Barbara, California joined
the project to assist with training and evaluation. A nominal 10
arc-minute scale was chosen to provide compatibility with other scales
and because this corresponds closely with the resolution of global
AVHRR coverage. All data are provided in geographic
(longitude/latitude) projection. The dataset is accompanied by an
ASCII documentation file which contains information necessary for use
of the dataset in a GIS or other software.

The texture data is based on the FAO Soil Map of the World, and
compiled into digital form by Zobler. Each matrix element represents
the near-surface texture (upper 30 cm) of the dominant soil unit in a
one-degree square cell of the earth's surface. The data conforms in
location, and nominal classification (land, land-ice, water) to
Matthew's vegetation data set.

References:
FAO. FAO-UNESCO Soil Map of the World (1974). Scale 1:5000000. UNESCO,
Paris.
Staub, Brad and Cynthia Rosenzweig. Global Digital Data Sets of Soil
Type, Soil Texture, Surface Slope, and other properties: Documentation
of Archived Tape Data. NASA Technical Memorandum No.100685.
Henderson-Sellers, A., M.F. Wilson, G. Thomas, R.E. Dickinson. Current
Global Land Surface Data Sets for Use in Climate-Related
Studies. (1986).
Matthews, E. Global vegetation and land use: New high resolution data
bases for climate studies (1983). J. Clim. Appl. Meteor., vol.22,
pp.474-487.
Vegetation, Land-use and Seasonal Albedo Data Sets: Documentation of
Archived Data Tape (1984). NASA Technical Memorandum. No.86107.
Wilson. M.F. and A. Henderson-Sellers. A global archive of land cover
and soils data for use in general circulation climate models
(1985). Journal of Climatology, vol.5, pp.119-143.

Source map :FAO/UNESCO Soil Map of the World
Publication Date :1987
Projection :lat/lon
Type :Raster
Format :IDRISI

Geographic Coverage
 N: 40.0 S: -35.0  E: 55.0  W: -20.0

Location Keywords
CONTINENT > AFRICA


Science Keywords
AGRICULTURE >SOILS    [Definition]
BIOSPHERE >TERRESTRIAL ECOSYSTEMS >DESERTS    [Definition]
BIOSPHERE >TERRESTRIAL ECOSYSTEMS >DUNES    [Definition]
HUMAN DIMENSIONS >ENVIRONMENTAL IMPACTS    [Definition]
LAND SURFACE >SOILS    [Definition]
LAND SURFACE >TOPOGRAPHY    [Definition]


ISO Topic Category
FARMING
BIOTA


Access Constraints
Public


Keywords
DUNES
Environmental Monitoring > Environmental Measurements > Slope
LAND ICE
ROCK
SAND
SOIL UNITS
SURFACE SLOPE
Subject Disciplines > Soil Sciences
TEXTURE
Terrestrial Ecosystems > Arid Land Ecosystem > Sand Dunes
Terrestrial Ecosystems > Soils > Soil Salination


Originating Center
UNEP GRID - PAC


Data Center
Global Resource Information Database - Nairobi, Division of Early Warning and Assessment, United Nations Environment Programme
Data Center URL: http://gridnairobi.unep.org/

Data Center Personnel
Name: JOHANNES AKIWUMI
Phone: (+254-20) 7624214
Fax: (+254-20) 7624315
Email: Johannes.Akiwumi at unep.org
Contact Address:
Head, Data and Information Management Section
Division of Early Warning and Assessment (DEWA)
United Nations Environment Programme
P. O. Box 30552
City: Nairobi
Postal Code: 00100
Country: Kenya


Personnel
JOHANNES AKIWUMI
Role: TECHNICAL CONTACT
Phone: (+254-20) 7624214
Fax: (+254-20) 7624315
Email: Johannes.Akiwumi at unep.org
Contact Address:
Head, Data and Information Management Section
Division of Early Warning and Assessment (DEWA)
United Nations Environment Programme
P. O. Box 30552
City: Nairobi
Postal Code: 00100
Country: Kenya



Creation and Review Dates
Last DIF Revision Date: 2012-06-11

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