Caravan
Open Source
The open global large-sample hydrology dataset — thousands of catchments with forcing, attributes and streamflow.
Data, Monitoring & ForecastingActiveStreamflow DataRainfall Data
14 tools · Topic
Streamflow Data Access Tools
Gauge data powers calibration, frequency analysis and trend studies. This page indexes the packages that pull streamflow from national archives — USGS NWIS, Environment Agency, BoM and others — plus the tidying utilities that make records analysis-ready.
EGRET
Open Source
USGS R package for long-term water-quality and streamflow trends — home of the WRTDS method.
Water Quality & EnvironmentalActiveWater Quality ModellingR Hydrology
HyRiver
Open Source
A Python software stack for US hydrology data: NHD+ networks, gauges, DEMs, soils and climate via one API family.
Data, Monitoring & ForecastingActiveStreamflow DataRainfall Data
HydroShare
Free
CUAHSI's platform for sharing hydrological data and models — DOIs, collaboration and linked compute.
Data, Monitoring & ForecastingActiveStreamflow DataPython Hydrology
OpenFloodHub
Open Source
An open-source take on Google Flood Hub — per-gauge neural network streamflow forecasting you can self-host.
Data, Monitoring & ForecastingActiveStreamflow ForecastingPython Hydrology
PeakFQ
Gov-Public
USGS software for Bulletin 17C flood-frequency analysis of annual peak-flow records.
Hydrology & Catchment AnalysisStableFlood Frequency AnalysisStreamflow Data
StormHub
Open Source
Dewberry's open tool for building STAC catalogs of storms and gauge data — inputs for stochastic storm transposition.
Data, Monitoring & ForecastingActiveRainfall DataDesign Storms
USGS Hydrologic Toolbox
Gov-Public
USGS's merged surface-water and groundwater statistics program — baseflow separation, flow duration, low flows.
Hydrology & Catchment AnalysisActiveStreamflow DataFlood Frequency Analysis
USGS StreamStats
Gov-Public
USGS web tool for basin delineation and regression-based flow statistics at any US stream point.
Geospatial & Hydro-GISActiveWatershed DelineationFlood Frequency Analysis
dataRetrieval
Open Source
The USGS R package for pulling NWIS and Water Quality Portal data — gauge records as tidy data frames.
Data, Monitoring & ForecastingActiveStreamflow DataR Hydrology
fasstr
Open Source
Canadian government R package for streamflow analysis — trends, frequencies and summaries from HYDAT.
Data, Monitoring & ForecastingActiveStreamflow DataR Hydrology
hydroTSM
Open Source
R workhorse for hydrological time series — aggregation, summaries and hydrologically-aware plots in a few calls.
Data, Monitoring & ForecastingStableR HydrologyStreamflow Data
hydrofunctions
Open Source
A friendly Python client for USGS NWIS streamflow data — request, cache and plot gauge records in a notebook.
Data, Monitoring & ForecastingStableStreamflow DataPython Hydrology
rnrfa
Open Source
R client for the UK National River Flow Archive — catalogue, gauged daily flows and catchment metadata.
Data, Monitoring & ForecastingStableStreamflow DataR Hydrology