Error In Executing Grid Expression Zonal Statistics
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of w001001.adf Next message: [Invest-forum] About soil depth and Maximum root depth table Messages sorted by: [ date ] [ thread ] [ subject ] [ author http://lists.nceas.ucsb.edu/ecoinformatics/pipermail/invest-forum/2011-July/000519.html ] Re: Zonal Stats error: string is not a geographic or projected coordinate system http://invest.ecoinformatics.org/discuss/tier-1-sediment-retention/641366573/324484986 I am getting the error message below: Error calculating USLE: ERROR 999999: Error executing function.("esri.SpatRefEnvironment") http://www.blog5star.com/adding-pixel-value-data-from-a-raster-layer-to-a-number-of-buffer-polygons-arcgis/ the input string is not a geographic or projected coordinate system ERROR 010067: Error in executing grid expression. Zonal statistics program failed Failed to ecute (ZonalStatisitcsAsTable). My dr_deadvol and error in dr_time fields are set as integer. I'm running Invest 2.0 in ArcGIS 9.3.1. I'm running the sedimentation model on 3 waterhseds in 3 different countries, and the model runs fine for two of the countries. I'm only getting this error message on one country. I looked at the USLE raster that is produced for all three countries and is the error in executing input for the zonalstatisticbytable tool, and all produce floating point grids, so I'm not sure why this error is happening on this third country. The url has changed for the ESRI support on this bug. See new url below. It says the bug is fixed in 10.0. http://support.esri.com/en/bugs/nimbus/TklNMDQzMzIx I question if my problem is this bug because all three countries have floating point grids and two of them work fine. Thanks in advance for any thoughts or suggestions of other things to change or check. Erika Previously Stacie Wolny wrote: If you happen to get the following error when running the Sediment model, it might be this ArcMap bug: NIM043321, http://resources.arcgis.com/content/nimbus-bug?bugID=TklNMDQzMzIx. To work around it, set the dr_deadvol and dr_time fields in the input table to type Long or Short Integer. ~ Stacie Previous message: [Invest-forum] Setup aborts at 38% extract of w001001.adf Next message: [Invest-forum] About soil depth and Maximum root depth table Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] More information about the Invest-forum mailing list
layer of polygons with buffers around my points of interest, all of the same size, in Arc GIS. I also have a raster layer of nighttime lights with pixel values between 0 and 63 clipped to the country of interest. I would like to know how to add the average pixel value of the raster within each buffer area to the attribute table of the buffers. The attribute table of the night lights has 3 columns, the object ID, value and count. Thanks ========= 1 See zonal statistics – Barbarossa Jul 20 '15 at 13:47 I have used zonal statistics with the buffers and raster as input, and this visually gives what I'm looking for, but the output does not have an attribute table and does not allow me to build one – Gina K Jul 20 '15 at 13:52 ========= 1 Answer 1 ========= You could use Zonal Statistics as Table to generate a table with a Unique ID field that can be used to join to the polygon buffer attribute table. The tool takes 1) a dataset that defines the zone (your buffer polygons), 2) a zone field (some unique ID field in the buffer polygons), 3) a raster that contains the values on which to calculate a statistic (your nighttime lights), 4) a location for the output table. Also, you can optionally specify which stat to calculate. Then use the "ID" field in the polygon buffer shapefile and the "ID" field in the resulting zonal stat table to perform a tabular join. The resulting table will resemble the bottom table in this image: The resulting table can then be joined to your polygon using the unique value (zone field) from above. EDIT: It may be necessary to add a unique ID field. Add a field to the polygon buffer and name it "ID" or something like that. Copy the UID or OBJECTID to this field using field calculator. In the zonal stat as table tool, use this "ID