Average annual precipitation for area in U.S.

RubyStroschein — Wed, 06 Apr 2016 08:42:16 GMT

Hello,

I need to get average precipitation for certain land parcels. I've found several layers which could offer this information but queries do not return results or indicate error. Below is example of my request ( our application uses javascript api). I need result as number inches/yard or similar?

Query: Average annual precipitation (inches/yr) (ID: 21)

query that returns error

Query: Annual Precipitation (ID: 0)

Thanks!

Re: Average annual precipitation for area in U.S.

FC_Basson — Fri, 14 Oct 2016 09:22:22 GMT

Your first query is performed on a polygon layer (determined from the Map Service description at https://enviroatlas.epa.gov/arcgis/rest/services/National/ESN_CleanAir/MapServer/21). The input polygon rings intersect with 2 geometries. Add * to the Out Fields option to get the rest of the record field values like this example and the results for the MeanPrecip field can be used.

Your second query with the error is performed on a raster layer. This is most probably the layer on which the zonal statistics for each parcel was based. You could do an Identify operation on this layer and look at the resulting "Pixel Value" field, although this will only return the result for a single pixel and not the average (or whatever statistic) for the selected parcel.

topic Average annual precipitation for area in U.S. in ArcGIS JavaScript Maps SDK Questions

Average annual precipitation for area in U.S.

Re: Average annual precipitation for area in U.S.