Surface Water Extent Measurement Instruments

Measurements > Land > Inland Waters > Surface Water Extent
Measurement Definition: The spatial extent of water on the surface of the Earth such as in a river, lake, ponds, wetland, or  the ocean, as well as inundation due to flooding.
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
OLIOperationalMeasures surface radiance, land cover state, and change (e.g., vegetation type). Used as multi-purpose imagery for land applications.n/a
OLI-2OperationalMeasures surface radiance, land cover state, and change (e.g., vegetation type). Used as multi-purpose imagery for land applications.n/a
SAR (RISAT)OperationalRadar backscatter measurements of land, water and ocean surfaces for applications in soil moisture, crop applications (under cloud cover), terrain mapping, etc.n/a
S-band SAR (NISAR)Operational3-year mission to study solid earth deformation (earthquakes, volcanoes, landslides), changes in ice (glaciers, sea ice) and changes in vegetation biomassn/a
TIRSOperationalMeasures longwave thermal infrared surface emittance, land cover state, and change. Used as multipurpose imagery for land applications.n/a
TIRS-2OperationalMeasures longwave thermal infrared surface emittance, land cover state, and change. Used as multipurpose imagery for land applications. TIRS-2 will adhere to the Landsat 8 TIRS instrument performance specifications but will be built to NASA Class-B instrument standards (including a 5-year design life).n/a
SAR (CAS500-5)Being developedHigh resolution radar for water resource monitoringn/a
VNIR Imager (THEOS-3)Being developedA medium-resolution optical payload covering the visible and near-infrared region, intended to support wide-area Earth observation. Data would support land cover mapping, vegetation monitoring, agriculture assessment, water and coastal observation, natural resource management, disaster monitoring, and environmental applications.n/a
GEO SARProposedEmergency services: monitoring of landslides, subsidence and ground deformation, seismic and volcanic phenomena, terrain and infrastructure stability, flood mapping. Land: terrain stability, soil moisture and wetlands monitoring. Atmosphere: 2D maps of water vapor concentration with high spatial and temporal resolution.n/a
LandISProposedMeasures surface radiance, land cover state and change (e.g., vegetation type), and longwave termal infrared surface emittance. Used as multi-purpose imagery for land applications.n/a
PLATiNO TIRNo longer consideredDeveloped by Leonardo and SITAEL, PLATiNO-2 TIR will acquire images that will be used to provide valuable services for territories control and protection such as monitoring waters, glaciers, pollutants, state of crops and vegetation, energy consumption in urban areas. PLATiNO-2 is also equipped with the magnetically shielded HT 100, an improved version of SITAEL electric thruster, making PLATiNO-2 one of the first missions in the world to observe the Earth in the Thermal Infrared from a very lown/a