hydrological

within 25 miles

Nov 1, 2025

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NASA

Community Snow Observations

To improve temporal and spatial snow depth data coverage.

Anywhere

Ongoing

Citizen ScienceOcean Water MarineEducationGeology & Earth ScienceClimate & WeatherGeographyComputers & TechnologyEcology & EnvironmentNature & Outdoorshydrology_nasamountainsremote sensingcryospherenasasnow

University of Zurich, Department of Geography, Hydrology and Climate Group

CrowdWater

Collect hydrological data using a smartphone app

Anywhere

Ongoing

Citizen ScienceGeographyNature & OutdoorsOcean Water MarineEcology & EnvironmentGeology & Earth Sciencestreamflowfloodflow conditionswater levelhydrologycrowdcrowdwatersoil moisturestreamtemporary streamsdroughtriverwater

SPOTTERON GmbH

CrowdWater

Collecting hydrological data

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsOcean Water Marinemarineseacoastlinewatercitizen sciencestreamscrowdwater

University of Zurich, Department of Geography, Hydrology and Climate Group

CrowdWater game

Data quality control and improvement of crowdsourced water level data

Anywhere

Ongoing

Citizen ScienceClimate & WeatherOcean Water MarineEcology & EnvironmentGeographyNature & Outdoorswater leveldroughthydrologystreamsfloodstream levelwatercrowdwaterriversstreamflowgame

NASA

Lake Observations by Citizen Scientists and Satellites

Help us observe and report lake levels!

Anywhere

Ongoing

Citizen ScienceNature & OutdoorsClimate & WeatherOcean Water Marinenasa-sciact_nasalakewater levelrivernasahydrologysatellitelimnology

Michigan Clean Water Corps

MiCorps Volunteer Stream Monitoring Program

Monitor health of Michigan’s streams and rivers

Multiple locations, including yours!

Ongoing

Citizen ScienceGeology & Earth ScienceOcean Water MarineEcology & EnvironmentBiologystreamshydrologyinsectsriversbenthicwatershedmacroinvertebratesbugsstreamflow

Lynker and DRI / NASA

Mountain Rain or Snow

Our goal is to improve estimates of precipitation phase (rain vs. snow).

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEcology & EnvironmentClimate & Weatherclimateweathertechnologysnow_nasawaternasa-sciacthydrologyprecipitationrain

UK Centre for Ecology and Hydrology, Botanical Society of Britain and Ireland, Plantlife, the Joint Nature Conservation Committee, and The Department of Agriculture, Environment and Rural Affairs for Northern Ireland

National Plant Monitoring Scheme

Record abundance and diversity of plant species in the UK.

Multiple locations, including yours!

Ongoing

Citizen ScienceNature & OutdoorsEcology & EnvironmentBiologyhedgerowecologywildflowerheathlandspeciesukgrasslandhabitatsevidenceterrestrialbotanywetlandwoodlandplants

Prescott College

Returning Rapids Western Grand Canyon

To monitor and understand the returning rapids of the Western Grand Canyon’s Colorado River.

Multiple locations, including yours!

Ongoing

Citizen Sciencedrought lake mead droughtwestern grand canyon returning rapids hydrology riverrapidsclimate change monitoring water quality grand canyonlava cliff colorado rivermonitoringcolorado riverreturning rapidsriverriver raftinglake meadgrand canyonwater quality lava cliff western grand canyon rapids river raftinghydrology

SkNOWLEDGE COLLECTIVE

Science, math (& more!) outdoors, one snowball at a time ❄!

Anywhere

Ongoing

Citizen ScienceGeographyClimate & WeatherEducationmeteorologicalenvironmentclimateoutdoorshydrological gisclimate changemeteorological dataoutdoor field-based activitiesweathersnow wetnesswater resourcessciencetemperatureenvironment educationsnow depthschool-based citizen science initiativeearth observationmathsnow

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