3.18 MEDIAN ANNUAL RAINFALL - GRID |
Data ID |
Description: |
Median annual rainfall |
Chapter: |
3 Climate |
File name: |
Median |
File type: |
ArcView grid |
Geographical area: |
Namibia |
Keywords: |
median |
|
rainfall |
|
annual |
Notes on data, analysis and |
The original data for almost 300 stations came from the following report: |
compilation: |
Namibia Resource Consultants. 1999. Rainfall distribution in Namibia: Data analysis and mapping of spatial, temporal, |
|
and Southern Oscillation Index aspects. Windhoek: Ministry of Agriculture, Water and Rural Development. An |
|
interpolated grid was created from the point data using a kriging interpolator in Arcview. Grid cell size = 5km |
|
|
|
For incorporation in the atlas, the grid dataset was converted to the projection parameters used in the atlas and masked |
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to the country borders. Map units of the grid are in m. |
Data quality and organisation |
Positional Accuracy: |
interpolation of points - accuracy will be reasonable in areas with clusters of stations and low in areas with few stations |
Vector/Raster: |
Raster |
Spatial reference |
Projection: |
Albers Conical Equal Area |
Spheroid |
Bessel |
Standard parallel1 |
-27 |
Standard parallel2 |
-19 |
Longitude of central meridian |
18.5 |
Latitude of projection origin |
-27 |
Fields |
Field name |
Field description |
Value |
Median annual rainfall, in mm |
Count |
Number of cells with the same value |
Source/Distribution |
Data Source: |
Namibia Resource Consultants. 1999. Rainfall distribution in Namibia: Data analysis and mapping of spatial, temporal, |
|
and Southern Oscillation Index aspects. Windhoek: Ministry of Agriculture, Water and Rural Development. |
Distribution notes: |
Unrestricted |