African Meteorology (GIS Coverage of Precipitation and Winds)
Entry ID:
NBId0006_101
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Summary
New-ID: NBI06
Dataset covers mean annual rainfall distribution, number of wet days,
wind speed and velocity.
The Africa Meteorological Dataset documentation
Files: RAINFALL.E00
Code: 100009-001
WETDAYSLL.E00
100010-001
WVEL.E00
100011-001
AFRAINX.IMG
100009-002
AFWINDX.IMG
100011-002
...
Vector Members
The files are in Arc/Info Export format and should be imported
with the Arc/Info
command Import cover In-Filename Out-Filename.
The Africa Meteorological dataset is part of the UNEP/FAO/ESRI
Database project that covers the entire world but focused on
Africa. The maps were prepared by Environmental Systems Research
Institute (ESRI), USA. Most data for the database were provided by
Food and Agriculture Organization (FAO), the Soil Resources,
Management and Conservation Service Land and Water Development
Division, Italy. This dataset was developed in collaboration with the
United Nations Environment Program (UNEP), Kenya. The base maps used
were hand drawn climate maps from FAO. All sources were re-registered
to the FAO Soil Map of the world (1984) in Miller Oblated
Stereographic projection by comparing known features on the basemap
and the source maps. The digitizing was done with a spatial resolution
of 0.002 inches. The maps were then transformed from inch coordinates
to latitude/ longitude degrees. The transformation was done by an
unpublished algorithm (by US Geological Survey and ESRI) to create
coverages for one-degree graticules.
Contact : UNEP/GRID-Nairobi, P O Box 30552, Nairobi, Kenya
FAO, Soil Resources, Management ......, 00100, Rome, Italy.
ESRI, 380 New York Street, Redlands, CA 92373, USA
The RAINFALL data shows the mean annual rainfall distibution in
line and polygon format. The WETDAYSLL data shows the number of
wetdays per year as polygon and line data in latitude/longitude (see
UNEP/FAO/ESRI directory) The WVEL data shows the Mean annual Wind
Velocity data in polygon and line format.
References:
ESRI. Final Report UNEP/FAO world and Africa GIS data base (1984).
Internal Publication from ESRI, FAO and UNEP
FAO/UNESCO. Soil Map of the World (1977). Scale 1:5000000. UNESCO, Paris
FAO. Map of Mean Annual Rainfall and general Climate zones for
P/Pet for Africa. (1983). Scale 1:5000000. Todor Boyadgiev, Soil
Resourcs, Management and Conservation Service. FAO, Rome FAO. Maps of
Mean annual Wind Velocity for Africa (1983). Scale 1:5000000. Todor
Boyadgiev, Soil Resourcs, Management and Conservation Service. FAO,
Rome
FAO. Maps of Number of Wet Days per Year (1983). Scale 1:5000000. Todor
Boyadgiev, Soil Resourcs, Management and Conservation Service. FAO, Rome
Source : FAO Soil Map of the World. Scale 1:5000000
Publication Date : Dec 1984
Projection : Miller (Arc/Info commands revmil and ADJUST change to
Geographic) and Lat/long
Type : Polygon and line
Format : Arc/Info Export non-compressed
Related Datasets : All UNEP/FAO/ESRI Datasets
Files from Int. Lab. on Research of Animal Diseases
Rain1-12/rainyear (100020-001/2), Tmax/Tmin/Evap1-12/Evapyear
(100023/24)
Files used inTick distribution study (ILRAD)
Rainstns/Evapstns/Tmax-Tmin-stns (100080/81/83)
Climatic stress for Tick distribution (100068)
Files used in Desertification Assessment (GLASOD) Aftmpmon/afprcmon/ 12
files each (100097/98)
Aftmpann/Afprcann/Afpetann (1000097/98/99)
Files form Global Change Project
Aftmpmon/Afprcmon (100040/73)
Aferrmon rain standard error (100074)
Afmprmon (100019)
Afrainx.img (100019-002)
Geographic Coverage
Spatial coordinates
| N: 40.0 |
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S: -45.0 |
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E: 60.0 |
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W: -30.0 |
Location Keywords
Science Keywords
ISO Topic Category
Access Constraints
Public
Ancillary Keywords
Originating Center
Data Center
Personnel
Creation and Review Dates
Last DIF Revision Date:
2005-03-18
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Links
