WMS Climate Adaptation Forest

The WMS “Forest” service is part of the Climate Adaptation System (www.klimaanpassung.nrw.de). This wms service describes parameters from the field of action “Forest and Forestry”. The wms service is divided into the group layers forest fire hazard and vegetation time in the forest. The group layer “Forest Fire Hazard” contains two additional group layers: “Number of days exceeding forest fire index class 4” with a map and “Change of the number of days when forest fire index class 4 exceeds forest fire index class 4” with six maps. The first map shows the days of exceeding the forest fire index class 4 in the period 1961-1990. The other six maps reflect the modeled change in the number of days exceeding the forest fire index class 4 over the period 2021-2050 and 2071-2100, respectively in relation to the reference period 1961-1990. The data bases are derived from the German Weather Service and are based on climate model simulations of an ensemble of 19 climate models for the scenario SRES-A1B. They will each be for the 15th, 50th, and 85th. Percentile of the model ensemble specified. The group layer “Vegetation time in the forest” comprises three maps: the actual vegetation period (number of days 10 °C), the total precipitation in the forest vegetation period (May to October) and the climatic water balance in the forest vegetation period (May to October) in the period 1981-2010. The data base is provided by the German Weather Service. The HYRAS dataset of the DWD provides the basis for the evaluation of the actual vegetation time length, which contains daily value data in a grid of 5 km × 5 km. The basis for determining the forest-relevant actual vegetation time is the mean daily values of the air temperature measured at the stations of the German Weather Service in North Rhine-Westphalia. The basis for the rainfall sum as well as the climatic water balance during the forest vegetation period (May to October) also provide measurements by the German Weather Service, which were interpolated from a grid of 1 km × 1 km taking into account the topography of the terrain.