Consideration of uneven terrain when determining the chimney height according to TA Luft

Location-dependent minimum values ​​in meters above ground to which the chimney height should be increased according to TA Luft 2021 number 5.5.2.3 paragraph 5 to take uneven terrain into account. On the 10m x 10m grid of this dataset, location-dependent minimum heights in meters above ground are specified, to which the chimney height should be increased according to TA Luft number 5.5.2.3 paragraph 5 to take uneven terrain into account. These are orientation values ​​for the planning and plausibility check of new chimneys in NRW. TA Luft number 5.5.2.3 paragraph 5: "If the landscape horizon, viewed from the mouth of the chimney, is above the horizontal and its angle to the horizontal is greater than 15 degrees in a directional sector that is at least 20 degrees wide, the chimney height should be increased by that much until this angle is less than or equal to 15 degrees. The displayed pixel values ​​in meters above ground result from this condition based on the DTM10 from Geobasis NRW. The values ​​given here must be checked for plausibility before they are used by inspecting the site and, if necessary, corrected taking into account further details that are not shown in DGM10.