Sarmistha Chatterjee

Recent Posts

Calculating density on a network: a comparison of Network KDE and Planar KDE


Check out this Story Map on a spatial data exploratory analysis of vehicle crashes in Richmond City, Virginia that identifies hazardous road segments (hotspots) using both Network Kernel Density Estimation (KDE) and Planar KDE methods for eight different bandwidths.

Posted in Analysis & Geoprocessing, ArcGIS Online, ArcGIS Pro, ArcMap, Story Maps, Uncategorized | Tagged , , , | 1 Comment

Predict Floods with Unit Hydrographs

A raster of Flow times for the town of Stowe, Vermont

Check out the new ArcGIS Lesson on Predict Floods with Unit Hydrographs to create a unit hydrograph for a small to medium sized watershed using ArcGIS Pro, using a wide array of tools from Hydrology, Surface  and other toolsets from … Continue reading

Posted in Analysis & Geoprocessing, ArcGIS Pro, Hydro, Mapping, risk assessment, Water Utilities | Tagged , , , , | Leave a comment

Spatial Analyst- Post-UC Recap

User conference

It was great to interact with all of you at the User Conference in San Diego. Thank you for sharing your analysis stories, and for your feedback and suggestions. For those of you who could not make it to a … Continue reading

Posted in Analysis & Geoprocessing, Defense, Electric & Gas, Geodata, Health, Hydro, Imagery, Local Government, Location Analytics, Mapping, National Government, Petroleum, Portal for ArcGIS, Public Safety, Python, risk assessment, Sciences, Security, State Government, Water Utilities, Web | Tagged , , | Leave a comment

Performing analysis with the Con tool


‘Con’, abbreviated for condition, is one of the most used and powerful tools in Spatial Analyst. It allows you to vary how the output is determined based on the value of the input locations, which is key for building simple … Continue reading

Posted in Analysis & Geoprocessing, ArcGIS Pro, ArcMap, Python | Tagged , , , , , | 2 Comments

Using interactive features with Spatial Analyst tools


Have you tried the new Interactive feature input capability in ArcGIS Pro 2.0 yet?  Read on to learn more about how you can perform analysis interactively with some of the Spatial Analyst tools.

Posted in Analysis & Geoprocessing, ArcGIS Pro | Tagged , , | Leave a comment

Why your output raster is larger than your environment extent?

Spatial Analyst environment extent

When using a geoprocessing tool, for example Hillshade, when you specify an extent in the environment settings, you might have noticed sometimes that your output raster is slightly larger than your specified extent. Ever wondered what is going on inside the box? … Continue reading

Posted in Analysis & Geoprocessing | Tagged , | 2 Comments