topic Re: Calculate surface below sea level in Esri Training Questions https://community.esri.com/t5/esri-training-questions/calculate-surface-below-sea-level/m-p/850035#M878 <HTML><HEAD></HEAD><BODY><P>1- raster calculator (in Spatial Analyst Tools/Map Algebra) with [original DEM] &lt;= 0 which produce a new raster with two categories, one above sea level and another below sea level</P><P></P><P>2- Tabulate area (in Spatial Analyst Tools/Surface/Zonal/) which calculate the surface of each previous categories within the polygons of the shapefile.</P><P></P><P>3- in the table created, create a new field for the total surface of the two categories.</P><P></P><P>4- in the same table, create a new field for the percentage of submerged land with surface of submerged land / total surface. Click on properties on the percent field, then click percentage, then Numeric, then all frequencies are percentage, adjust the number of decimals.</P><P></P><P>5-Spatial join the table to the original table of the shapefiles of the communes. End</P></BODY></HTML> Fri, 27 Mar 2020 04:32:05 GMT BrunoDI_GIUSTO 2020-03-27T04:32:05Z Calculate surface below sea level https://community.esri.com/t5/esri-training-questions/calculate-surface-below-sea-level/m-p/850034#M877 <HTML><HEAD></HEAD><BODY><P><SPAN style="color: #1d2129; background-color: #ffffff; font-size: 14px;">Good morning everyone. </SPAN></P><P><SPAN style="color: #1d2129; background-color: #ffffff; font-size: 14px;">What will be the best method to calculate from a DEM and a shapefile with the polygons of communes the total surface of each commune that is below sea level, please? </SPAN></P><P><SPAN style="color: #1d2129; background-color: #ffffff; font-size: 14px;">Thank you in advance for your help!</SPAN></P></BODY></HTML> Wed, 25 Mar 2020 02:26:24 GMT https://community.esri.com/t5/esri-training-questions/calculate-surface-below-sea-level/m-p/850034#M877 BrunoDI_GIUSTO 2020-03-25T02:26:24Z Re: Calculate surface below sea level https://community.esri.com/t5/esri-training-questions/calculate-surface-below-sea-level/m-p/850035#M878 <HTML><HEAD></HEAD><BODY><P>1- raster calculator (in Spatial Analyst Tools/Map Algebra) with [original DEM] &lt;= 0 which produce a new raster with two categories, one above sea level and another below sea level</P><P></P><P>2- Tabulate area (in Spatial Analyst Tools/Surface/Zonal/) which calculate the surface of each previous categories within the polygons of the shapefile.</P><P></P><P>3- in the table created, create a new field for the total surface of the two categories.</P><P></P><P>4- in the same table, create a new field for the percentage of submerged land with surface of submerged land / total surface. Click on properties on the percent field, then click percentage, then Numeric, then all frequencies are percentage, adjust the number of decimals.</P><P></P><P>5-Spatial join the table to the original table of the shapefiles of the communes. End</P></BODY></HTML> Fri, 27 Mar 2020 04:32:05 GMT https://community.esri.com/t5/esri-training-questions/calculate-surface-below-sea-level/m-p/850035#M878 BrunoDI_GIUSTO 2020-03-27T04:32:05Z