hydrology

within 25 miles

Nov 29, 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 & Outdoorsremote sensingsnowhydrologymountains_nasacryospherenasa

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

CrowdWater

Collect hydrological data using a smartphone app

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Ongoing

Citizen ScienceGeographyNature & OutdoorsOcean Water MarineEcology & EnvironmentGeology & Earth Sciencewater leveldroughtsoil moisturestreamflowriverstreamhydrologycrowdwaterfloodflow conditionstemporary streamswatercrowd

SPOTTERON GmbH

CrowdWater

Collecting hydrological data

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsOcean Water Marinestreamswatercrowdwatermarinecoastlineseacitizen science

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 levelstream levelfloodriversdroughthydrologywaterstreamscrowdwatergamestreamflow

NASA

Lake Observations by Citizen Scientists and Satellites

Help us observe and report lake levels!

Anywhere

Ongoing

Citizen ScienceNature & OutdoorsClimate & WeatherOcean Water Marine_nasalimnologynasa-sciactlakesatellitehydrologynasariverwater level

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 & EnvironmentBiologyriversbugsbenthicwatershedstreamsstreamflowinsectshydrologymacroinvertebrates

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 Marineweatherhydrologyrainclimatenasa-supported_nasaprecipitationsnownasa-sciactwatertechnology

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 & EnvironmentBiologyhabitatsecologyevidenceterrestrialwildflowergrasslandplantswetlandheathlandukbotanyhedgerowwoodlandspecies

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 lake meadgrand canyondroughtwater qualityclimate changelava cliffriver river raftingreturning rapidscolorado river colorado river rapids hydrologywestern grand canyonrapids western grand canyon riverhydrologyriver rafting water qualitymonitoring returning rapids monitoring droughtlake mead lava cliff grand canyon

SkNOWLEDGE COLLECTIVE

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

Anywhere

Ongoing

Citizen ScienceGeographyClimate & WeatherEducationclimatescienceoutdoor field-based activitiestemperaturemeteorological dataoutdoorshydrological climate changeenvironment educationenvironmentwater resourcesweathersnowmeteorologicalmathschool-based citizen science initiativesnow depthearth observationsnow wetnessgis

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