This fileset consists of raster surfaces for the 2-year to 100-year return period storms described in the Technical Paper 40: Precipitation-Frequency Atlas of the United States (TP40). TP40 is a collection of isopluvial maps from which precipitation depth for different return period and storm durations. Using QGIS, a open-source geographical information systems software, the maps in this fileset were created by first georeferencing the digitalized physical maps available publicly via the NOAA's Hydrometeorological Design Studies Center. For the 24-hour duration, and each return period aforementioned, the isopluvial contours were interpolated using inverse distance weighting algorithm.

Aerial Imagery/Photography, Scanned Historical Maps, CCT DRAFT Ground Level Map (GLM), Infrared Imagery, Digital Elevation Models (DEM), etc. All Raster Image Services (WMS):Use URL below to add WMS Server Connection in ArcGIS Desktop, ArcPro, QGIS, AutoCAD, etc.https://cityimg.capetown.gov.za/erdas-iws/ogc/wms/GeoSpatial Datasets?service=WMS&request=getcapabilities&All Raster Image Services (REST):https://cityimg.capetown.gov.za/erdas-iws/esri/GeoSpatial%20Datasets/rest/services/Popular Image Services: 2021 Aerial Imagery , 2020 Aerial Imagery , 2019 Aerial Imagery , DRAFT CCT Ground Level Map (GLM) 2019_5m_ DEM