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Weighted averages: accounting for cell size



Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)
Announcing the arrival of Valued Associate #679: Cesar Manara
Unicorn Meta Zoo #1: Why another podcast?Weighted averages: accounting for grid cell surface variation in proportion to the cosine of its latitudeCalculating mean upslope aspect from each cell in DEM using ArcPy?Weighted Average of several raster “zones”What to do when raster cell size is larger than zonal vector feature in order to collect statistics?Extract values from raster based on weighted average area using polygon gridIdentifying downhill cells for dispersing frog?ArcGIS 10 restricted WEIGHTED Flow AccumulationWeighted averages: accounting for grid cell surface variation in proportion to the cosine of its latitudeCalculating built-up density for each cell in vector grid in QGIS?Is the cell size dependent on the number of features for the Euclidean Distance tool?How do I calculate the Terrain Ruggedness Index for each county in the United States in R?



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0















I'm a non-geographer using ArcMap 10.6.



I have a similar question to the two asked here: Weighted averages: accounting for grid cell surface variation in proportion to the cosine of its latitude



I have two raster files, one of terrain roughness index (TRI) and the other of cell size. Both correspond to a 30 by 30 arcsecond cell.



My question is how do I weight the TRI raster by the cell size raster? I have used the Zonal Statistics tool to calculate the TRI for each of my polygons without accounting for the cell size, is there some way to calculate the weighted average using this tool?










share|improve this question






























    0















    I'm a non-geographer using ArcMap 10.6.



    I have a similar question to the two asked here: Weighted averages: accounting for grid cell surface variation in proportion to the cosine of its latitude



    I have two raster files, one of terrain roughness index (TRI) and the other of cell size. Both correspond to a 30 by 30 arcsecond cell.



    My question is how do I weight the TRI raster by the cell size raster? I have used the Zonal Statistics tool to calculate the TRI for each of my polygons without accounting for the cell size, is there some way to calculate the weighted average using this tool?










    share|improve this question


























      0












      0








      0








      I'm a non-geographer using ArcMap 10.6.



      I have a similar question to the two asked here: Weighted averages: accounting for grid cell surface variation in proportion to the cosine of its latitude



      I have two raster files, one of terrain roughness index (TRI) and the other of cell size. Both correspond to a 30 by 30 arcsecond cell.



      My question is how do I weight the TRI raster by the cell size raster? I have used the Zonal Statistics tool to calculate the TRI for each of my polygons without accounting for the cell size, is there some way to calculate the weighted average using this tool?










      share|improve this question
















      I'm a non-geographer using ArcMap 10.6.



      I have a similar question to the two asked here: Weighted averages: accounting for grid cell surface variation in proportion to the cosine of its latitude



      I have two raster files, one of terrain roughness index (TRI) and the other of cell size. Both correspond to a 30 by 30 arcsecond cell.



      My question is how do I weight the TRI raster by the cell size raster? I have used the Zonal Statistics tool to calculate the TRI for each of my polygons without accounting for the cell size, is there some way to calculate the weighted average using this tool?







      arcmap spatial-analyst zonal-statistics terrain average






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Apr 11 at 15:47









      Ian Turton

      50.4k548119




      50.4k548119










      asked Apr 11 at 14:21









      picko90picko90

      11




      11




















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