Nitrate Retentionmap DK

Map showing the degree of nitrate retention in the subsurface and surface waters before they reach the coast calculated as an average for the period 1990-2010. Development and production of the map was carried out in cooperation between GEUS and the Univerity of Aarhus during 2013-2015. The map is revised august 2015. Explanation for column contents: ID: ID15 Catchment area RedTot: Total retention of nitrate in percent from during transport form root zone within a given catchment area until it reaches the coast. RedSurf: Total retention of nitrate in percent from it reaches surface water in a given catchment until it reacehes the coast. RedGW: Reduction of nitrate in the subsurface in percent within a given catchment area until it reaches the surface water system. MinRedTot: Minimum total retention in percent from root zone to coast (RedTot - UncRedTot) MaxRedTot: Maximum total retention in percent from root zone to coast (RedTot + UncReddTot) UncRedTot: Uncertainty estimate of total reduction in percentage points. BiasReg: Bias region InModel: 1: ID15 catchment in measured area; 0: ID15 catchment in unmeasured area; -1: ID15 catchment lies outside model area; the total retention is estimated as an average of the other unmeasured catchment areas.