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A quick guide to basic usage of Model My Watershed. For in-depth information about the Model My Watershed Site Storm Model and Watershed Multi-Year Model, please consult the technical documentation.

This reference document is intended to provide technical documentation and references for the data layers, data analysis algorithms, models, computational framework, and other components that together create the hydrologic and water quality output delivered by the Model My Watershed web application.

The Model My Watershed Site Storm Model simulates storm runoff and water quality by applying the TR-55 and STEP-L water-quality models for a single 24-hour rainstorm over a selected land area within the continental United States.

Learn about this GIS-based watershed modeling tool that uses hydrology, land cover, soils, topography, weather, pollutant discharges, and other critical environmental data to model sediment and nutrient transport within a watershed.

The Runoff Simulation shows how land use and soil together determine whether rainfall infiltrates into the soil, runs off into streams or is evaporated and transpired by plants.

This reference explains how to use Monitor My Watershed to explore EnviroDIY sensor data. EnviroDIY is a community for do-it-yourself environmental science and monitoring.

Monitor My Watershed lets you share and explore macroinvertebrate data from the Leaf Pack Network. Monitor My Watershed is part of the WikiWatershed toolkit.

Monitor My Watershed lets you share and explore rock pack data from the Leaf Pack Network. Monitor My Watershed is part of the WikiWatershed toolkit.