Here is a tool that allows you to estimate the particle size class of a soil sample from the proportions of sand, silt and clay. The estimator is based on the texture class intervals of the Soil Survey of England and Wales - note that other international standards also exist, such as the USDA and FAO triangles.
This pricing guide utility provides you with a price for the different data products which we commonly lease.
If you have a Grid Reference with two letters out the front, this is how to convert them to numbers.
EXAMPLE 1 - Letters and numbers to 6-figure (1km) grid reference
NS 306834 (This is a single point)
Split the numbers in half...
Look up NS in the table, below...
Attach the number to the front of the appropriate value...
But, you put into the soil data pricing utility only the first three values, as only 1km accuracy is required.
EXAMPLE 2 - 12 figure (1 meter) grid reference to 6-figure (1km) grid reference
278456 456390 (This is another single point)
This one is easier as we only need the first three numbers from the Easting and Northing.
OS letter codes to numbers conversion table
|Number (1)||Letters (1)||Number (2)||Letters (2)||Number (3)||Letters (3)|
LandIS, or the Land Information System is one of the offerings of the Soil and Agrifood Institute. Incorporating the National Soil Resources Institute, CSAI is the largest UK national and international centre for research and development, consultancy and training in soils and their interaction with the atmosphere, land use, geology and water resources.
Centre for Environmental & Agricultural Informatics,
Bullock Building B53,
School of Water, Energy and Environment,
+44 (0)1234 752992
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