The Norwegian Soil survey is a systematic survey of soils on agricultural areas in mainland Norway. Data is collected by fieldwork which includes mapping the distribution of soil types by interpreting aerial photographs and verification and identification of soil types in the field using a soil auger. The boundaries between areas with different soil types are digitized in a GIS on site. Soil types are defined on the basis of major soil properties. The World Reference Base of Soil Resources (WRB) is linked as our national classification system, and is used as basis for our soil mapping units. \\nA soil feature in the soil database is a continuous area with the same attributes assigned according to the classification criteria of soil types with a geometric representation as a polygon. Soil maps describes agricultural areal according to a national standardized classification systems of soil and other local attributes such as slope. \\nAround 55 % of the country’s agricultural land has been mapped so far. As the soil survey will in foreseeable future only have partial national coverage, an area frame survey has been implemented in order to provide national and regional soil statistics. Plots of 0,9 km2 has been established in a 9 x 9 km grid across Norway, and all agricultural areas on these plots are classified and mapped for soil properties using the same approach as in the ordinary soil survey. The result is a representative sample used to provide estimates of soil types and properties at the national and regional level.\\nThe results from the soil survey are organized in a soil survey database. A number of applied models translate the information in the soil database into thematic maps needed by different users. Some models include meteorological data. As an example, agricultural areas best suited for potato production are available at scale 1:5000.

The data set shows the thickness of sediments deposited after the last ice age (in the Holocene) in the Skagerrak and Norskerenna south of Stavanger. The thickness varies greatly over the mapped area, from 0 m (no deposition or erosion) to over 70 m.

Shell sand occurrences show areas in the coastal zone with information about shell sand on the seabed, either based on mapping in the field or modeling. Sediments with a calcium carbonate content > 50% and consisting of whole or crushed calcerous shells are described as shell sand or shell gravel.

Accumulation basins are the natural depressions on the sea floor with very weak bottom currents and prevailingly fine grained sediments. The renewal of bottom water in natural depressions on the seafloor my be so slow, that input of extra organic matter (f.ex. from fish farms) may result in reducing conditions.

Sediment data show mainly the prevalence of soil types covering the bedrock surface for whole Norway. Most of the soils were formed during and after the last ice age. The data shows only the soil that dominates in the upper meters of the terrain surface. Thick and thin layers by other soils may occur further down in the soil profile. The dataset was first published i 1990, and updated in 2013.

The application provides an overview of superficial deposits in Norway. Polygons have been compiled, generalized and harmonized from all available quaternary maps published by the Geological Survey of Norway. Soils/superficial deposits are classified according to their genesis and thickness. The map service shows coverage map of various mapping scales.

Sediment data show mainly the prevalence of soil types covering the bedrock surface. Most of the soils were formed during and after the last ice age. The data shows only the soil that dominates in the upper meters of the terrain surface. Thick and thin layers by other soils may occur further down in the soil profile.