Delta Hydro Studio
FreemiumVerified
Browser-based hydrology and hydraulics calculators for practising engineers — no install, report-ready output.
Frequency Explorer
ActiveBrowser-based rainfall frequency analysis — fit and rank 11 distributions with confidence intervals.
by FAMS Design Solutions
- Pricing
- Free
- License
- Proprietary
- Commercial use
- Check licence
- Ecosystem
- Browser
- Platform
- Web
About Frequency Explorer
Frequency Explorer, from FAMS Design Solutions, performs rainfall frequency analysis in the browser: upload an annual-maximum series, and it fits eleven candidate distributions — GEV, Gumbel, Log-Pearson III, Log-Normal, Log-Logistic, TCEV and others — ranks them by goodness-of-fit (Kolmogorov-Smirnov, chi-square), and reports design rainfall estimates with 95% confidence bounds.
Where national IDF services exist (NOAA Atlas 14, the ARR Data Hub) they remain the compliance answer; this tool earns its place for everywhere else — gauge-based frequency work in regions without an official service, or as an independent check with uncertainty bounds included. Free to use at the time of listing.
Where it fits in the workflow
TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting
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