https://www.lynxce-env.com/blog Technical articles on water resources modeling, environmental science, HEC-HMS, HEC-RAS, SWAT calibration, and civil engineering data tools from LYNXCE's PE-licensed engineering team. en-us Wed, 27 May 2026 00:00:00 GMT https://www.lynxce-env.com/blog/nextgen-nwm-end-of-monolithic-water-model https://www.lynxce-env.com/blog/nextgen-nwm-end-of-monolithic-water-model Wed, 27 May 2026 00:00:00 GMT Trend & Innovation NOAA is rebuilding the National Water Model on the NextGen framework. NWM v4 will let different regions run different physics. Here is what changes for projects that depend on NWM. https://www.lynxce-env.com/blog/noaa-atlas-15-conus-preview-stormwater-codes-2027-2028 https://www.lynxce-env.com/blog/noaa-atlas-15-conus-preview-stormwater-codes-2027-2028 Wed, 13 May 2026 00:00:00 GMT Regulatory NOAA Atlas 15 Volume 1 CONUS preliminary lands in September 2026. The IDF tables underlying nearly every municipal stormwater code will be obsolete on the page. Why the transition will play out across 2027–2028, and what designers should do now. https://www.lynxce-env.com/blog/hec-hms-vs-hec-ras-which-model-do-you-need https://www.lynxce-env.com/blog/hec-hms-vs-hec-ras-which-model-do-you-need Sun, 01 Feb 2026 00:00:00 GMT Tool Comparison A practical comparison of HEC-HMS and HEC-RAS — when to use each hydrologic and hydraulic model, how they work together, and which is right for your water resources project. https://www.lynxce-env.com/blog/swat-model-calibration-traditional-vs-diagnostic-guided https://www.lynxce-env.com/blog/swat-model-calibration-traditional-vs-diagnostic-guided Thu, 09 Apr 2026 00:00:00 GMT Methodology Compare traditional SWAT calibration methods (SWAT-CUP, SUFI-2) with the diagnostic-guided approach. Learn how SWAT-DG achieves results in under 50 runs instead of 5,000+. https://www.lynxce-env.com/blog/how-to-access-usgs-water-data-for-engineering-projects https://www.lynxce-env.com/blog/how-to-access-usgs-water-data-for-engineering-projects Mon, 20 Apr 2026 00:00:00 GMT Data & Tools A practical guide to accessing USGS streamflow, water quality, and groundwater data for civil engineering projects. Covers NWIS, Water Services API, and CEWaterHub.