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Floods Data Access and Tools
From discovery to visualization, data tools such as the Dartmouth Flood Observatory (DFO), HYDrologic Remote Sensing Analysis for Floods (HYDRAFloods), and the Spatial Data Access Tool (SDAT) guide users in making the most of flood data.
Floods Datasets
| Dataset | Version Sort ascending | Platforms | Instruments | Temporal Extent | Spatial Extent | Spatial Resolution | Data Format |
|---|---|---|---|---|---|---|---|
| MODIS/Aqua+Terra Global Flood Product L3 NRT 250m 3-day GeoTIFF | 6.1 | Terra, Aqua | MODIS | 2021-03-15 to Present |
N: 90 S: -90 E: 180 W: -180 |
250 Meters x 250 Meters | GeoTIFF |
| MODIS/Aqua+Terra Global Flood Product L3 NRT 250m | 6.1 | Terra, Aqua | MODIS | 2021-03-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
250 Meters x 250 Meters | HDF-EOS |
| MODIS/Aqua+Terra Global Flood Product L3 NRT 250m 1-day CS GeoTIFF | 6.1 | Terra, Aqua | MODIS | 2021-03-15 to Present |
N: 90 S: -90 E: 180 W: -180 |
250 Meters x 250 Meters | GeoTIFF |
| MODIS/Aqua+Terra Global Flood Product L3 NRT 250m 2-day GeoTIFF | 6.1 | Terra, Aqua | MODIS | 2021-03-15 to Present |
N: 90 S: -90 E: 180 W: -180 |
250 Meters x 250 Meters | GeoTIFF |
| MODIS/Aqua+Terra Global Flood Product L3 NRT 250m 1-day GeoTIFF | 6.1 | Terra, Aqua | MODIS | 2021-03-15 to Present |
N: 90 S: -90 E: 180 W: -180 |
250 Meters x 250 Meters | GeoTIFF |
| NCA-LDAS Noah-MP 3.6 Land Surface Model L4 Hourly 0.125 x 0.125 degree V3.0 (NCALDAS_NOAHMP0125_H) at GES DISC | 3.0 | Noah-MP-LSM | NOT APPLICABLE | 1979-01-02 to 2021-12-31 |
N: 53 S: 25 E: -67 W: -125 |
||
| NCA-LDAS Noah-3.3 Land Surface Model L4 Daily 0.125 x 0.125 degree V2.0 (NCALDAS_NOAH0125_D) at GES DISC | 2.0 | Noah-LSM | NOT APPLICABLE | 1979-01-02 to 2016-12-31 |
N: 53 S: 25 E: -67 W: -125 |
||
| VIIRS/JPSS1+JPSS2 Daily L3 Global Flood Composite 250m Linear Lat Lon Grid - NRT | 2 | NOAA-20, NOAA-21, Suomi-NPP | VIIRS | 2025-04-15 to Present |
N: 90 S: -90 E: 180 W: -180 |
250 Meters x 250 Meters | EOS5 |
| VIIRS/JPSS1+JPSS2 Hourly Cumulative L3 Global Flood Composite 250m Linear Lat Lon Grid - NRT | 2 | NOAA-20, NOAA-21, Suomi-NPP | VIIRS | 2025-04-15 to Present |
N: 90 S: -90 E: 180 W: -180 |
250 Meters x 250 Meters | HDF5 |
| U.S. Climate Risk Projections by County, 2040-2049 | 1.00 | MODELS | Computer | 2040-01-01 to 2049-12-31 |
N: 72 S: 17 E: -65 W: -180 |
Shapefile, PDF, PNG, Excel |
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Featured Floods Observation Method: Sentinel-1 C-SAR
The Synthetic Aperture Radar (SAR) aboard the ESA (European Space Agency's) Sentinel-1A/B satellites provides continuous all-weather, day-and-night land imagery. SAR images can be used to see through clouds and vegetation to identify flooded areas caused by seasonal changes, storms, and other events.
Sentinel-1 synthetic aperture radar (SAR) data are used to create maps of surface water extent for research, planning, and disaster response.
The Observational Products for End-Users from Remote Sensing Analysis (OPERA) Dynamic Surface Water eXtent (DSWx) product suite, a Satellite Needs Working Group solution, maps spatial extent of surface water.
Floods Data Tools
| Tool Sort descending | Description | Services | |
|---|---|---|---|
| AppEEARS | The The Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) offers users a simple and efficient way to perform data access and transformation processes. | Search and Discovery, Subsetting, Customization, Downloading, Visualization | |
| Hazards Mapper | The Hazards Mapper enables users to rapidly get an idea of the population, land area, dams, and nuclear power plants that could be impacted by a wide range of natural events, including floods, earthquakes, fires, and volcanic eruptions. | Analysis, Search and Discovery, Visualization | |
| NYS FIDSS Mapper | The New York State Flood Information Decision Support System Mapper is an easy-to-use mapping tool visualizes building footprint data for nearly all New York State’s infrastructure, except New York City. | Visualization | |
| OpenAltimetry | OpenAltimetry is a map-based visualization tool for exploring surface elevation data across Earth over time. | Analysis, Search and Discovery, Visualization | |
| Panoply | Panoply is a cross-platform application that plots geo-referenced and other arrays from netCDF, HDF, GRIB, and other datasets. | Visualization, Customization, Reformatting, Subsetting, Comparison | |
| TESViS | The Terrestrial Ecology Subsetting & Visualization Services Global Subsets Tool provides on-demand, customized subsets of several terrestrial ecology data products. | Visualization, Subsetting | |
| Vertex | Vertex is a graphical search interface for finding synthetic aperture radar (SAR) data. | Search and Discovery, Access, Downloading, Processing, Subsetting | |
| Worldview | Worldview offers the capability to interactively browse over 1,200 global, full-resolution satellite imagery layers and download the underlying data. | Analysis, Search and Discovery, Visualization, Access, Comparison, Monitoring Natural Events |
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Frequently Asked Questions
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