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Acid Sulfate Soils 1:250 000 map product shows an interpretation of ASS occurrence in Finland classified in to four classes according to probability of occurrence; High, Moderate, Small and Very Small. The maps are based on field observations, laboratory analysis of the sediment samples and interpretation of i.a aerogeophysics and Quaternary Geology Maps. Acid Sulfate Soils 1:250 000 Study Sites shows the location study sites and the depth of the sulfide layer from the ground surface. There are two different types of observation points; Profile Points and Mapping points. Profile points give a more detailed description of the site and user can find an additional factsheet including the field observations and the result s of the chemical analyses linked to the point. The Preliminary interpretation of ASS occurrence 1:1 000 000 map shows the probability off ASS occurrence in Finland based on quantitative multivariate modeling.
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In regard to product series, such as Detailed aerogeophysical survey, or Aerogeophysical low altitude maps at 1:20 000 scale, the intended areas or map sheets must first be selected with the "Area selection" tool in the map window and then be transferred with the "Download" or "Buy" button to the Shopping Cart or with "Order" buttom to the Order request form.