Categories - Natural Resources
Sub Categories
- Ecotoxicology - 4 projects
- Air Quality - 36 projects
- Water Supply and Quality - 88 projects
- Soil and Land - 73 projects
Topics
soil-survey, pedometrics, air-quality-data, wastewater, stormwater, digital-soil-mapping, landscape-ecology, pedology, climers, openair, air-pollution-levels, brazil, water-management, epanet, swmm5, swmm, covid-19, aqi, airquality, groundwater-recharge, integrated-modelling, gef, nasis, soil-respiration, heatmap, drought-indices, toxicology, eda, ncss, soil-mapping, s4ss, landscape-metrics, plantower, pm10, pms5003, soil-texture-classification, pms5003st, classification-algorithm, publication-code, hyperspectral-image-classification, openaq, open-surface-mining, surface-mining-activities, radiometric-temperatures, source-energy-balance, code-for-america, openoakland, west-oakland, kssl, field-campaigns, soilweb, canairio-firmware, firmware, automated-river-analysis, geomorphometry, awsm, emissions-model, bcgov-csnr, groundwater-data, ow, geomatics, k-means, landslides-detection, merging-algorithms, object-based-image-analysis, optical-satellite-imagery, rsgislib, idaes-pse, opensensemap, citizenscience, watertap, seasonal-calendar, water-distribution, ogr, openfluid-framework, simulators, water-monitoring, land-change-analysis, water-treatment, water-distribution-networks, aguaclara, nodemcu, global-database, san-francisco-bay, hydrological, water-security, waterbalance, waterflux, deep-percolation, cropland, fields, pytorch-lightning, earth-sciences, pse, water-quality-data, drought, drought-index, sgi, spei, spi, gis-based, soil-erosion, surface-runoff, airmonitoring, aqs, datamart, environmental-data-retrieval, r03, rprogramming, usepa, spectral-unmixing, civic-apps-team, nhd, suitability-analysis, neutral-landscape-model, air-quality-monitor, airly, macos-menubar, poland, sensor-station, smog, grass, advection, ensemble-prediction, rainfall-prediction, stochastic-processes, aem, aquatic, estuaries, nutrients, phytoplankton, sediment, acquisition, extract-data, smap-data, soil-moisture-sensor, big-earth-data, eo-datacubes, image-time-series, planetary-computer, satellite-image-time-series, stac-api, stac-catalog, qa4sm, statistical-models, goal programming, mathematical programming, model predictive control, multi-objective optimization, reservoir management, stochastic optimization, water resource management, bcgov, frequency-analysis, hydat, summary-statistics, bias, gsflow, pygsflow, geotechnical-engineering, pygef, wepp, defra, spatio-temporal-modeling, terrain, process-flow-diagram, sapper, sensor-community, conservation-international, land-degradation, ldn, natural-climate-solutions, openaq-api, openaq-data, preprocess, read, sm, iot-device, MODFLOW, imod, air-pollutants, air-quality-measurements, cetesb, rio-de-janeiro, sao-paulo, ncss-tech, water-models, groundwater-level, epanet-matlab-toolkit, accumulation, intensity-analysis, land-use-and-land-cover-change, luc-maps, lulc, aqhi, aqhi-canada, cesi, naps, frm4sm, in-situ, ismn, data-dictionary, naming-conventions, odm, sars-cov-2, hydraulic-modelling, swmmanywhere, ensemble-methods, ensembles, global-sensitivity-analysis, non-intrusive, parameter-estimation, uncertainty-quantification, food-security, soils-revealed, air-quality-api, air-quality-index, aqi-readings, waqi, airbase, landtrendr, human-health-assessment, aquatic-science, lake, mixing, stratification, 1d-cnn, conference, hyperspectral-data, publication, unccd, abwasser, datenmanagement, gep, kanalfernsehen, kataster, kek, leitungskataster, qgep, sewerpipe, sia405, teksi, vsa-dss, vsa-kek, werkinformationen, 2019, hbv, hbv-model, matilda, melt, spotpy, hydrographs, well-hydrograph, algal-bloom, meris, olci, comptox, cigarettes, covid19,
Projects
Contributors
Radoslaw Guzinski [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
canopy, evapotranspiration, heat, radiometric-temperatures, soil, source-energy-balance, cloud-masking, qgis, qgis-processing, copernicus and 2 more
ClaireBrenner [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
canopy, evapotranspiration, heat, radiometric-temperatures, soil, source-energy-balance
gabrielmini [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
canopy, evapotranspiration, heat, radiometric-temperatures, soil, source-energy-balance
matt-oak [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
acquisition, extract-data, smap-data, soil-mapping, soil-moisture, soil-moisture-sensor
Andreea Plocon [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
earth-science, soil-moisture, climers, geo
alegrub88 [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
earth-science, soil-moisture, climers, geo
teije01 [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
earth-science, soil-moisture, climers, geo
Heidi [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
classification-algorithm, coal, hyperspectral-image-classification, open-surface-mining, surface-mining-activities
mjn0898 [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
classification-algorithm, coal, hyperspectral-image-classification, open-surface-mining, surface-mining-activities
Xiaomei [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
classification-algorithm, coal, hyperspectral-image-classification, open-surface-mining, surface-mining-activities
Luner [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
classification-algorithm, coal, hyperspectral-image-classification, open-surface-mining, surface-mining-activities
Evandro C. Taquary [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
classification-algorithm, coal, hyperspectral-image-classification, open-surface-mining, surface-mining-activities, geospatial-data, geospatial-intelligence
Andrew Heermann [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
classification-algorithm, coal, hyperspectral-image-classification, open-surface-mining, surface-mining-activities
Theo [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
classification-algorithm, coal, hyperspectral-image-classification, open-surface-mining, surface-mining-activities
Maximilian Hesselbarth [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
landscape-ecology, landscape-metrics
Arjun Chennu [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
land-change-analysis, landscape-ecology, landscape-metrics
Justin Braaten [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
change-detection, landscape-dynamics, landtrendr
Peter Clary [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
change-detection, landscape-dynamics, landtrendr
Luca Zappa [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
in-situ, ismn, soil-moisture, climers, frm4sm, geo, qa4sm
Alvaro [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
climate-change, food-security, soils, soils-revealed, water-quality
Rolf Simoes [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
big-earth-data, cbers, earth-observation, eo-datacubes, image-time-series, land-cover-classification, planetary-computer, r-spatial, rspatial, satellite-image-time-series and 6 more
gilbertocamara [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
big-earth-data, cbers, earth-observation, eo-datacubes, image-time-series, land-cover-classification, planetary-computer, r-spatial, rspatial, satellite-image-time-series and 4 more
pedro-andrade-inpe [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
big-earth-data, cbers, earth-observation, eo-datacubes, image-time-series, land-cover-classification, planetary-computer, r-spatial, rspatial, satellite-image-time-series and 19 more
lorenalves [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
big-earth-data, cbers, earth-observation, eo-datacubes, image-time-series, land-cover-classification, planetary-computer, r-spatial, rspatial, satellite-image-time-series and 4 more
vwmaus [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
big-earth-data, cbers, earth-observation, eo-datacubes, image-time-series, land-cover-classification, planetary-computer, r-spatial, rspatial, satellite-image-time-series and 3 more
Alexandre Xavier Ywata Carvalho [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
big-earth-data, cbers, earth-observation, eo-datacubes, image-time-series, land-cover-classification, planetary-computer, r-spatial, rspatial, satellite-image-time-series and 3 more
Réginal Exavier [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
geography, intensity-analysis, land-use-and-land-cover-change, luc-maps, lulc, plot, rasters
PeterZeilhofer [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
geography, intensity-analysis, land-use-and-land-cover-change, luc-maps, lulc, plot, rasters
Cedric_IZW [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
landscape-ecology, neutral-landscape-model, community-dynamics, disease-modeling, diseases, ecology, ecology-modelling, population-dynamics, shapefiles, simple-features and 8 more
BKaric [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
citizenscience, opensensemap, sensor, gh-pages, homepage, jekyll
Rajko Zschiegner [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
sapper, sensor-community, iot-device, sensor, africa, air, air-inequality, air-pollution, air-quality, code-for-africa and 36 more
Timothy Miller [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
air-pollution, air-quality, code-for-america, environmental-justice, openoakland, west-oakland, beginner-friendly, oakland-ca, volunteering, census and 7 more
felixerdy [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
citizenscience, opensensemap, sensor, lora-application, lorawan, sensorweb, ttn, gh-pages, homepage, jekyll and 8 more
brunomioto [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply, Water Supply and Quality
Topics:
brazil, reservoir, water, actions, journalism, screenshots, telegram-bot, twitter, twitter-bot
ned [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply, Water Supply and Quality
Topics:
advection, ensemble-prediction, forecast-verification, hydrology, nowcasting, optical-flow, precipitation, rainfall, rainfall-prediction, stochastic-processes and 4 more
David Bitner [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
ogc-api, spatiotemporal-asset-catalog, stac-api, stac, aws-cdk, aws-lambda, cog, cogeotiff, dynamic, gdal and 26 more
Vikrant Negi [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
air-pollution, aqi, cigarettes, climate-change, expo, global-warming, pollution, sustainability, app-framework, native-apps and 21 more
shawnwang [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
geometric-deep-learning, graph-convolutional-networks, graph-neural-networks
Pierre Veissi [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
air-pollution, aqi, cigarettes, climate-change, expo, global-warming, pollution, sustainability, datagrid, datagrids and 9 more
Robert Gibboni [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
air-pollution, air-quality, code-for-america, environmental-justice, openoakland, west-oakland, animals, camera-traps, chimps, conservation and 13 more
CodeLingo Bot [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
aztec-code, barcode, codabar, code128, code39, code93, datamatrix, ean13, ean8, pdf417 and 40 more
jwhite-usgs [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply, Water Supply and Quality
Topics:
ensemble-methods, ensembles, global-sensitivity-analysis, non-intrusive, optimization-tools, parallel-computing, parameter-estimation, sensitivity-analysis, uncertainty-quantification
kurceliana [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply and Quality
Topics:
epanet, water, water-distribution-networks, hydraulics
Kenny Wong [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply and Quality
Topics:
ow
Hugh Graham [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
spatiotemporal-asset-catalog, stac, earth-observation, rspatial
Jadey Ryan [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
Viktor VN [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply and Quality
Topics:
advection, ensemble-prediction, forecast-verification, hydrology, nowcasting, optical-flow, precipitation, rainfall, rainfall-prediction, stochastic-processes and 2 more
FelixE91 [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply and Quality
Topics:
advection, ensemble-prediction, forecast-verification, hydrology, nowcasting, optical-flow, precipitation, rainfall, rainfall-prediction, stochastic-processes and 2 more
Janneke Pouwels [email protected]
OST Projects: 1
Categories: Hydrosphere, Natural Resources
Sub Categories: Freshwater and Hydrology, Water Supply
Topics:
MODFLOW, groundwater, imod
Weather-Matt [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
air-quality, emissions-model
Padilla [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply, Water Supply and Quality
Topics:
usgs
angelmons [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
Allison Pfeiffer [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
pankajiitkgp [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
jerabekjak [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
gis-based, soil-erosion, surface-runoff
Antonio Vanegas [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
air, air-quality, diy-electronics, esp32, ble, bluetooth-low-energy, firmware, co2, meter, monitor and 23 more
tdavello [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
digital-soil-mapping, eda, ncss, nrcs, pedology, pedometrics, s4ss, soil, soil-survey, spatial-data and 2 more
Skye [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
digital-soil-mapping, eda, ncss, nrcs, pedology, pedometrics, s4ss, soil, soil-survey, spatial-data and 8 more
Suraj R. Nair [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
Gautam Sai Yarramreddy [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
aerodynamics, aerospace, dynamics, flight, flight-simulator, hybrid-motors, liquid-motors, motor, parachute, rocket and 5 more
Tom Bohnel [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
Jonathon Fleming [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
toxicology
ZindahFarhaICF [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
human-health-assessment, risk-assessment, toxicology
Ben-Choat [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply, Water Supply and Quality
Topics:
B0hr [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
data-access, lifewatch, oscibio, water
Dimas [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
climate, climate-change, conservation, conservation-international, earth, gef, land, land-degradation, ldn, natural-climate-solutions and 5 more
Felipe Carlos [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
big-earth-data, cbers, earth-observation, eo-datacubes, image-time-series, land-cover-classification, planetary-computer, r-spatial, rspatial, satellite-image-time-series and 15 more
Gilberto gilberto.camara@sits-gpu.4kbcoxjuyntevpfihsfugrns0g.xx.internal.cloudapp.net
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
big-earth-data, cbers, earth-observation, eo-datacubes, image-time-series, land-cover-classification, planetary-computer, r-spatial, rspatial, satellite-image-time-series and 3 more
Pedro Brito [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
big-earth-data, cbers, earth-observation, eo-datacubes, image-time-series, land-cover-classification, planetary-computer, r-spatial, rspatial, satellite-image-time-series and 3 more
Weber [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply and Quality
Topics:
ow
Thomas Versteeg [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
gef, geotechnical-engineering, pygef
Rob van Putten [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
gef, geotechnical-engineering, pygef
Valentin Gartiser [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
evapotranspiration, waterbalance, waterflux
Austin Ladshaw [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply, Water Supply and Quality
Topics:
idaes-pse, idaesplus, watertap
lbibl [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply, Water Supply and Quality
Topics:
idaes-pse, idaesplus, watertap
Till Frankenbach [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
climate, climate-change, conservation, conservation-international, earth, gef, land, land-degradation, ldn, natural-climate-solutions and 5 more
Zhe Zhang [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
Wambaugh [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
ord, comptox
msfeir [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
comptox, ord
Sarah Davidson [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
ccte, comptox, ord
jwambaug [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
ord, comptox
cring [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
comptox, ord
Breen [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
comptox, ord
Sarah Davidson-Fritz [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
comptox, ord
Pearce [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
comptox, ord
greg_honda [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
comptox, ord
Annabel Meade [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
comptox, ord
t-anton [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Ecotoxicology
Topics:
comptox, ord
kasasa22 [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
hacktoberfest2024
JohnPaton [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
air-quality, airbase, packaging, pip
Kenneth Bowen [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
geoscience, holoviz, earth-data, earth-science, environmental-simulation, geographic, hydrology, bokeh, colorcet, colormaps and 12 more
Przemysław Dąbek [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
javascript-framework, nest, nestjs, nodejs-framework, typescript-framework, websockets
Natalya [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
Mendes de Jesus, Jorge [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Soil and Land
Topics:
sasharevzin [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
altair, chrome-extension, desktop-apps, express-middleware, fragments, graphiql, graphql-client, graphql-editor, graphql-ide, graphql-server and 7 more
santiagoropb [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Water Supply, Water Supply and Quality
Topics:
ord, water, mathematical-programming, modeling-language, nonlinear-programming
danielbernalb [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
airquality, canairio-firmware, covid-19, esp32, firmware, platformio
roberbike [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
airquality, canairio-firmware, covid-19, esp32, firmware, platformio
Nelson Castillo [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
airquality, canairio-firmware, covid-19, esp32, firmware, platformio
humano [email protected]
OST Projects: 1
Categories: Natural Resources
Sub Categories: Air Quality
Topics:
airquality, canairio-firmware, covid-19, esp32, firmware, platformio