3.06 APPROXIMATE NUMBERS OF DAYS OF FOG PER YEAR

Data ID

Description:

Number of foggy days per year

Chapter:

3 Climate

File name:

Approximate numbers of days of fog per year

File type:

ArcView shapefile

Geographical area:

Namibia

Keywords:

fog

Notes on data, analysis and

Based on one year of observations in 1984 using satellite imagery (see source data). Fog is recorded when visibility on

compilation:

the ground is reduced to 1,000 m or less. The polygons making up the shapefile were created from hand drawn contours

on a hard copy map. This manual interpolation approach was done by Peter Hutchinson using the point data from all

available stations. Because the number of stations was small an automatic interpolation produced nonsense results.

Data quality and organisation

Positional Accuracy:

Low

Vector/Raster:

Vector

Spatial reference

Projection:

Geographic

Fields

Field name

Field description

DAYS	Approximate number of fog days per year

Source/Distribution

Data Source:

Olivier, J. 1995. Spatial distribution of fog in the Namib. Journal of arid environments, 29:129-138.

Distribution notes:

Unrestricted