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Uploaded on:
13/02/2009 06:14:36
Type:
Digital Asset
File Size:
129.33 KB
Dimensions:
1000 x 751 pixels
1793 views 4 downloads
P number: P000315
Old photograph number: B00818
Caption: Culbin sand-hills. Morayshire. Arrest of drifting sand by plantation of Scotch fir (Scots pine), and tufts of bent (Psamma arenaria). The direction of sand-drift is from right to left, i.e. from west to east, the direction of the prevailing winds.
Description: Culbin sand-hills. Morayshire. Arrest of drifting sand by plantation of Scotch fir (Scots pine), and tufts of bent (Psamma arenaria). The direction of sand-drift is from right to left, i.e. from west to east, the direction of the prevailing winds. Grasses help stabilize the dune by reducing the strength of the wind at ground level, creating pockets of still air, and hence reducing the amount of sand being blown. The photograph shows how the sand collects around the tufts of the grasses while in between the wind is free to scour out and transport the sand unhindered.
Date taken: 01/01/1912
Photographer: Lunn, R.
Copyright statement: Crown
Acknowledgment: This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network
X longitude/easting: 298500
Y latitude/northing: 861500
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Landscape
Size: 129.33 KB; 1000 x 751 pixels; 85 x 64 mm (print at 300 DPI); 265 x 199 mm (screen at 96 DPI);
Average Rating: Not yet rated
Categories: Unsorted Images, Geoscience subjects/ Landforms, wind/ Sand-dunes  

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