hydrological

within 25 miles

Nov 6, 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 & Outdoorshydrologymountainsnasa_nasaremote 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 Scienceriverdroughtwatersoil moisturecrowdwaterflow conditionsstreamflowstreamwater levelfloodtemporary streamscrowdhydrology

SPOTTERON GmbH

CrowdWater

Collecting hydrological data

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsOcean Water Marinecitizen sciencemarinecrowdwaterwatercoastlineseastreams

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 & Outdoorsfloodstreamflowstreamsgamecrowdwaterriverswater levelhydrologystream leveldroughtwater

NASA

Lake Observations by Citizen Scientists and Satellites

Help us observe and report lake levels!

Anywhere

Ongoing

Citizen ScienceNature & OutdoorsClimate & WeatherOcean Water Marinesatellitenasa-sciactriverhydrology_nasanasalimnologywater levellake

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 & EnvironmentBiologystreamflowstreamsinsectsbenthicmacroinvertebratesbugswatershedhydrologyrivers

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 Marinetechnologyclimaterainwaterweathersnowhydrologynasa-supportedprecipitation_nasanasa-sciact

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 & EnvironmentBiologyevidenceplantsukgrasslandbotanywildflowerwetlandterrestrialspecieswoodlandhabitatshedgerowecologyheathland

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 Scienceriver rafting monitoringdroughtriver lava cliffhydrology colorado rivergrand canyonlava cliffmonitoringreturning rapidslake meadcolorado riverwestern grand canyon western grand canyonwater quality river rafting lake mead riverclimate change grand canyon hydrology rapids drought returning rapids water qualityrapids

SkNOWLEDGE COLLECTIVE

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

Anywhere

Ongoing

Citizen ScienceGeographyClimate & WeatherEducationsnowhydrological environmentschool-based citizen science initiativegissnow wetnessoutdoorsenvironment educationsciencemeteorological dataearth observationmeteorologicalwater resourcestemperaturesnow depthweatherclimateclimate changeoutdoor field-based activitiesmath

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