Technical writing from the field
Methodology notes, model comparisons, and workflow breakdowns from the engineers and analysts behind GeoVeris's hydrology, hydraulics, GIS, and remote sensing work.
Choosing Between HEC-RAS 1D and 2D for Urban Floodplain Studies
1D and 2D hydraulic models solve different problems. Here's how we decide which one — or which combination — fits a given urban floodplain study.
A Practical Guide to SPI and SPEI for Drought Monitoring
The Standardized Precipitation Index and its evapotranspiration-adjusted cousin are the workhorses of drought monitoring. Here's how to choose between them and interpret the results correctly.
Google Earth Engine vs. Traditional Desktop GIS for Large-Area Land Cover Mapping
For national or multi-region land cover mapping, the platform choice isn't just a preference — it changes what's actually feasible on a real project timeline.
Calibrating SWAT Models with Limited Gauge Data
Most real-world basins don't have the dense, long-record gauge networks textbook calibration assumes. Here's how we still produce defensible SWAT models.
Why OpenLISEM Is Underused in Urban Flood Risk Studies
OpenLISEM gets far less attention than HEC-RAS or SWMM in urban flood work — often unfairly. Here's where it genuinely earns a place in the toolkit.
From DEM to Decision: A Terrain Analysis Workflow for Site Suitability
A practical walkthrough of the terrain-analysis pipeline we use to turn a raw DEM into a defensible site suitability recommendation.