hydrology

within 25 miles

Dec 3, 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 & Outdoorshydrologymountains_nasanasaremote sensingcryospheresnow

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 Sciencecrowddroughtstreamflowflow conditionscrowdwaterhydrologytemporary streamsfloodriverwatersoil moisturestreamwater level

SPOTTERON GmbH

CrowdWater

Collecting hydrological data

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsOcean Water Marinestreamscitizen sciencecrowdwatermarinewatercoastlinesea

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 & Outdoorsdroughtstream levelhydrologyfloodstreamflowriverswater levelstreamsgamecrowdwaterwater

NASA

Lake Observations by Citizen Scientists and Satellites

Help us observe and report lake levels!

Anywhere

Ongoing

Citizen ScienceNature & OutdoorsClimate & WeatherOcean Water Marinehydrologynasasatellitewater levellimnologynasa-sciactriver_nasalake

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 & EnvironmentBiologyinsectsmacroinvertebratesbenthicriverswatershedstreamshydrologystreamflowbugs

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 ScienceClimate & WeatherEcology & EnvironmentOcean Water Marinerainhydrologyclimatesnownasa-sciactwaterweatherprecipitationnasa-supportedtechnology_nasa

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 & EnvironmentBiologyspecieshabitatsbotanyplantshedgerowevidenceecologywildflowerwetlandheathlandterrestrialwoodlandgrasslanduk

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 Science rapidsgrand canyonmonitoringwestern grand canyon returning rapidswater quality monitoring water qualityriverreturning rapidslake mead grand canyonclimate changehydrologydroughtcolorado river river colorado riverrapids hydrologylava cliff river rafting drought western grand canyonriver rafting lake mead lava cliff

SkNOWLEDGE COLLECTIVE

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

Anywhere

Ongoing

Citizen ScienceGeographyClimate & WeatherEducationmathmeteorologicalhydrological outdoorsclimate changesnow wetnesstemperaturewater resourcesclimateenvironmentoutdoor field-based activitiesscienceenvironment educationmeteorological datagissnow depthschool-based citizen science initiativeearth observationsnowweather

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