topic Re: Spatial Analysis Tornado Climatology in ArcGIS Pro Questions

Spatial Analysis Tornado Climatology

michaelalbano — Thu, 29 Dec 2022 03:39:28 GMT

Good evening,

I'm trying to recreate the following map, which is a 30 year climatology of tornadoes in the U.S.:

I noticed that the map illustrates the mean number of tornado days per year within 25 miles of a point. I took a few college courses in ArcGIS--many moons ago--so I know the knobology of ArcGIS Pro. My workflow is rusty, though, and I'm having difficulty performing the spatial analysis. The vector data I'm working with is a series of polylines. I've attached a few images of my data below:

Can anybody give me any hints as to which spatial tools I'm going to need to use to recreate the tornado climatology?

Thanks!

Re: Spatial Analysis Tornado Climatology

DanPatterson — Thu, 29 Dec 2022 13:01:42 GMT

do the polylines represent contours or the path of the tornados?

Re: Spatial Analysis Tornado Climatology

michaelalbano — Fri, 30 Dec 2022 00:25:33 GMT

The polylines represent the path of the tornado. Alternatively, I have point data that marks the starting point of each tornado -- if you think that would be easier data to work with.

Re: Spatial Analysis Tornado Climatology

DanPatterson — Fri, 30 Dec 2022 02:22:09 GMT

you could look at

An overview of the Density toolset—ArcGIS Pro | Documentation

kernel, line or point density,

but your map doesn't indicate what "points" they are using for there mean number of tornados with 25 sq miles

Re: Spatial Analysis Tornado Climatology

michaelalbano — Fri, 30 Dec 2022 03:28:34 GMT

Thanks for the feedback. Might there need to be intersections or buffers?