Planetary-scale answers, unlocked.
A Hands-On Guide for Working with Large-Scale Spatial Data. Learn more.
Discover
27 guides on Raster.
Geospatial Big Data: Why Analytics Is Hard to Scale
Teams struggle to scale geospatial analytics for five reasons: data volume, mixed formats, many coordinate systems, spatial joins and pipeline upkeep.
What is Geospatial Intelligence? GEOINT Defined, Examples
Geospatial intelligence (GEOINT) analyzes imagery and map data to describe activity on earth. Definition, history, examples, and a New Orleans walkthrough.
What is a Context Engine? Why Physical World Data Needs One
A context engine is the system that computes, stores, and serves the context AI models and agents receive. How it works, examples, and why physical world data needs one that computes spatial relations.
What Is the Partitioning Tax? Tiles, Seams, and Reruns
The partitioning tax is the cost of splitting spatial data into tiles when it outgrows one machine: tile loops, seam errors at tile edges, and reruns. How it shows up and how distributed spatial engines remove it.
What is Geospatial Data? Types, Formats, Examples
Geospatial data describes things tied to a place on Earth. The two main types, vector and raster, plus formats, sources, and examples.
What is a Coordinate Reference System? CRS, EPSG
A coordinate reference system (CRS) ties coordinates to places on Earth. Geographic vs projected systems, datums, EPSG codes, WGS 84, UTM, and ST_Transform.
What is the Havasu Catalog? A Spatial Data Catalog
The Havasu Catalog is the Wherobots spatial data catalog: open geospatial datasets, RasterFlow models, notebooks, and apps, stored as Apache Iceberg tables and queryable in place with spatial SQL.
What is Satellite Imagery Analysis? AI, Tasks, Uses
Satellite imagery analysis turns satellite and aerial pixels into maps, counts, and alerts. The computer vision tasks, the data, and how AI runs them at scale.
What is Land Cover Classification? Classes and Data
Land cover classification labels every part of the Earth's surface by what covers it, such as water, forest, crops, or pavement. The classes, the datasets, and how to map change.
What is Probable Maximum Loss (PML)? EP Curves, AAL
Probable maximum loss (PML) is the largest loss an insurer expects from one property or a portfolio at a chosen probability. How PML, EP curves, AAL, and TVaR fit.
What Is a Spatial Join? Predicates, Types, and SQL
A spatial join matches rows from two tables by where their geometries sit. How spatial joins work, the predicates and join types, and how to write one in SQL.
What is Sentinel-2? Bands, Resolution, Data Access, Uses
Sentinel-2 is the Copernicus optical satellite mission that images Earth's land and coasts in 13 spectral bands at 10 to 60 m every five days. Its bands, resolution, products, free data access, and uses.
