GIS Tool: Flow Network
/Flow networks (also known as geometric networks) help prioritize fish passage barrier removal.
Read MoreFlow networks (also known as geometric networks) help prioritize fish passage barrier removal.
Read MoreAs discussed in Episode 12 of the podcast, a Bayesian network is a model that brings known factors as well as unknowns and degrees of certainty of your data into a prediction model. It’s pretty complicated (at least for me), but it may be useful to some of you who are more knowledgeable about probability theory!
A Bayesian network model is something mostly used in academia right now (see academic papers and journal articles here, here, and here, and even notes from a Stanford class here and an older tutorial here), but Esri, QGIS and others are incorporating tools to be able to more easily do this type of modeling inside of GIS software.
A few Esri desktop software tools that use this model include Class Probability which is run against a raster image, Empirical Bayesian Kriging which requires a license of Geostatistical Analyst to run, and Maximum Likelihood Classification which requires the Spatial Analyst extension.
QGIS is a free, open source GIS software. There is a plugin called the PMAT (probabilistic map algebra tool) that users can download in order to integrate Bayesian network models with their geospatial data.
Mark Altaweel wrote a much better article over at GIS Lounge, so why not head over and read that for more information!
If I got anything majorly wrong or if you use this type of modeling in your work, please let us know in the comments below!
Will We Make It Out Alive is a hilarious and educational bi-weekly podcast that engages people, inspires participation in the restoration of the environment, cultivates enhanced use of GIS (geographic information systems) tools, and increases awareness of citizen science opportunities.
A GIS workflow for analyzing hours of shade for a potential new (or existing) garden, using the Shadow Impact Analysis tasks provided from Esri in their Development Impact Analysis solution.
We’re on break, but we’re coming back this summer and we’re gonna be better than ever!!!
We’re postponing our episode until June 16th and we plan on having it be a shorter episode that will talk about the Plastic Free July Challenge
I struggled a lot with cartography when I was starting out. TBH, I still struggle with it today, after doing it for almost 25 years. I’m not an expert, but I’d like to share some resources that have been helpful for me over the years.
In this month’s episode, we cover how to use the Routing tool to be more efficient in your recycling collection.
Flow networks (also known as geometric networks) help prioritize fish passage barrier removal.
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Find out how Jen the Magical Mapper has been doing on her Plastic Free July challenge!