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ItemDescription
Recipients of DVRPC digital files will credit DVRPC as the source of the data when producing maps, publications, reports, or other documents that utilize DVRPC files.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data is made available for planning purposes only by the Delaware Valley Regional Planning Commission (DVRPC) as a public service and is provided AS IS for you to use at your own risk. DVRPC makes no representation of warranty of any kind, expressed or implied, with respect to this information. Please credit DVRPC as the source when using this data.</SPAN></P></DIV></DIV></DIV>
Delaware Valley Regional Planning Commission
190 N Independence Mall West
Philadelphia
PA
19106
215-592-1800
Surface Temperature (°F) Difference from County Mean by Census Block - Delaware County, PA
For planning purposes only.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Surface Temperature (°F) Difference from County Mean by Census Block.</SPAN></P><P><SPAN>The Remote Sensing Lab's </SPAN><A href="http://rslab.gr:80/downloads_LandsatLST.html" STYLE="text-decoration:underline;"><SPAN>Landsat Land Surface Temperature</SPAN></A><SPAN> webpage was used to determine the eight, hottest, mostly cloud free days for the region from 2014-2017.</SPAN></P><P><SPAN>Eight rasters (representing data for the aforementioned eight, hottest, mostly cloud free days for the region) were downloaded from the Landsat Land Surface Temperature page. Each was then smoothed using Esri's </SPAN><A href="https://desktop.arcgis.com:443/en/arcmap/latest/tools/spatial-analyst-toolbox/focal-statistics.htm" STYLE="text-decoration:underline;"><SPAN>Focal Statistics</SPAN></A><SPAN> tool to fill in cloud gaps. Then, the </SPAN><A href="https://desktop.arcgis.com:443/en/arcmap/latest/tools/spatial-analyst-toolbox/raster-calculator.htm" STYLE="text-decoration:underline;"><SPAN>Raster Calculator</SPAN></A><SPAN> tool was used to average each of the eight images. The images were then cut to the region's boundary. They were further divided into county, tract, block group, and block level geographies. The </SPAN><A href="https://desktop.arcgis.com:443/en/arcmap/latest/tools/spatial-analyst-toolbox/zonal-statistics.htm" STYLE="text-decoration:underline;"><SPAN>Zonal Statistics</SPAN></A><SPAN> tool was then used to find an average surface temperature for each geography. The difference between the smaller geographies and the regional or county geographies, depending on the analysis, was determined and each was mapped.</SPAN></P><P><SPAN>For the temperature score, the same standard deviation process as the Indicators of Potential Disadvantage (IPDs) was used, assigning a score of 0-4 depending on the number of standard deviations from the regional or county average outlined in the IPD methodology. This was done for the region as a whole and then for each block, block group, or tract relative to its county.</SPAN></P><P><SPAN>For additional information, see DVRPC's </SPAN><A href="https://www.dvrpc.org:443/energyclimate/extremeheat" STYLE="text-decoration:underline;"><SPAN>Municipal Management of Extreme Heat</SPAN></A><SPAN> webpage.</SPAN></P></DIV></DIV></DIV>
DVRPC
Surface Temperature
Extreme Heat
Climate
Census Block
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