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A Hands-On Guide for Working with Large-Scale Spatial Data. Learn more.
What is a Digital Elevation Model? DEM vs DSM vs DTM
A digital elevation model (DEM) is a raster in which every cell holds a height, on a regular grid with a known cell size, horizontal coordinate system, and vertical datum. The term covers two kinds of model. A digital terrain model (DTM) records the bare ground. A digital surface model (DSM) records the first surface […]
Data Center Site Selection: Criteria, Data Layers, Process
Data center site selection is the process of finding land for a facility of tens to hundreds of megawatts. On suitable land, the facility can be powered, connected, cooled, and permitted, and kept clear of natural hazards. Analysts screen candidate land against grid capacity, transmission, fiber, water, hazards, zoning, and latency to users. They then […]
What is Change Detection in Satellite Imagery?
Change detection is the process of comparing two or more images of the same place, captured at different times, to find where and how the surface has changed. Ashbindu Singh's review Digital change detection techniques using remotely-sensed data (International Journal of Remote Sensing, 1989) gave the definition most papers cite. It defines change detection as […]
The Wherobots Spatial AI Assistant is now in the Anthropic Connectors Directory
You can now ask Claude questions about the physical world and get answers grounded in real spatial data. The Wherobots Spatial AI Assistant, now available in the Anthropic Connectors Directory, answers these questions in plain language and returns results, maps, and reports directly in your Claude conversation. Wherobots is the context engine for physical world […]
Building the Wherobots Mobility Solution Accelerator: A Technical Deep Dive
Three Notebooks, One Medallion Architecture, Full 4D GPS Trajectory Processing: Part 2 of 2
Spatial Data Processing Platforms: A Comparison of Enterprise and Cloud-Native Options
For Data Engineers and Architects Evaluating Spatial Workloads on Snowflake, Databricks, and PostGIS Six platforms dominate spatial data processing today: PostGIS for transactional workloads under 100GB, Snowflake and BigQuery GIS for light spatial enrichment inside a broader analytics platform, Databricks for vector spatial joins on the Lakehouse, Apache Sedona for self-managed open-source distributed spatial compute, […]
Spatial Data Pipeline Architecture: PostGIS and Wherobots Together
In the world of data architecture, there is a dangerous myth that you have to choose “one tool to rule them all.” We often see organizations paralyzed by the debate: “Should we use a Database or a Data Lake?” A spatial data pipeline architecture built for both large-scale analytics and operational queries is one of […]
Mobility Data Processing at Scale: Why Traditional Spatial Systems Break Down
A Wherobots Solution Accelerator for GPS Mobility Analytics — Part 1 of 2
PostGIS vs Wherobots: What It Actually Costs You to Choose Wrong
When building a geospatial platform, technical decisions are never just technical, they are financial. Choosing the wrong architecture for your spatial data doesn’t just frustrate your data team; it directly impacts your bottom line through large cloud infrastructure bills and, perhaps more dangerously, delayed business insights. For decision-makers, the choice between a traditional spatial database […]
