Create Space Time Cube from Defined Location

[JillClogston]

Hello community members!

I am attempting to create a space time cube from whale sightings data in the Salish Sea. The Salish Sea has been divided into five subareas. Whale sightings encompass ten unique groups of whales. The goal of the analysis is to visualize the use of the Salish Sea subareas by the different groups of whales and changes over time. The attribute table contains date of sighting, group ID, location, etc., so each row is a unique sighting for a unique group of whales. When creating the space time cube from a defined location, I want to use sightings count for the summary statistics. There must be a way for the STC to use count as a summary field? What am I missing?

Thank you!
Jill

[RonaldHaug]

Hi Jill,

I think what you're doing is totally cool and I, and I'm sure alot of other people, would like to see your results.

I haven't done this before, and I was hoping someone would chime in, but since they haven't here's the place to start looking for answers.

https://pro.arcgis.com/en/pro-app/3.1/help/mapping/time/temporal-data.htm

Here's a tutorial on it: https://www.esri.com/training/catalog/5cacfe6b61a32c31b715f8ae/introduction-to-spacetime-analysis/

Read up on it, take the tutorial and let us know how you did it. I'm pretty sure I already saw a youtube on this before. Maybe John Nelson?  Yes! Thank you John!  https://www.youtube.com/watch?v=qVGpA94Afeo

Tell you what. I want to learn how to do this, too, so thatsa what Ima gonna do!

Will you share your data with me?  We can do it together.

[JillClogston]

Thank you Ronald. I have done that tutorial but haven't seen the video you linked to so will check that out! Unfortunately, the data is not mine to share, otherwise I would be happy to!

[RonaldHaug]

Hi Jill,

I used the blue whale migration data (movebank.org) from John Nelson's Video.

First I played around with the time slider and that was fun. I found in ArcGIS Pro 3.2 that the time ribbon at the top of the screen works best of all the ways to segment the time data, 1 month, 3 month yearly, fast/slow, repeat, etc.

Then I made a space time cube. It worked fine for me and yes, point counts was the input data. There is a section for summary statistics at the bottom of the geoprocessing tool, and you can put counts in there, too, for your statistics.

In the attribute table I did have to use the initial timestamp which was listed as "text" to create a new column called date with "date" as its data type (text, short integer, long integer, double, date), using the arcade expression date = "feature' timestamp". I also had to create a projected coordinate system (PCS) for the data as well. I used John Nelson's "World from above" PCS and moved the prime meridian and central latitude to -126 and 35, resp. I don't remember if I had to do these for the STC or the following geo-processes. 

Lastly I did three different things with my cube, 3-d view, hot spot, and cluster analysis.

https://pro.arcgis.com/en/pro-app/latest/tool-reference/space-time-pattern-mining/learnmorecreatecub...

How did your foray go?

[JillClogston]

That's great! I had to put this on the back burner temporarily but hope to get back to this in the next couple of weeks. 

Also, thanks for leading me to John Nelson's videos. Amazing stuff there! 

I will keep you posted!

Jill