This Level-4 (L4) Global Environmental Data Record (EDR) provides blended 1-Day and 5-Day composite flood products produced from observations acquired by the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the Suomi-NPP and NOAA-20 satellites. These composite products are rendered using Area of Interest (AOI) maps. The globe is divided into 134 AOI maps, with each map providing the maximum 1-Day or 5-Day flood extent for that AOI.

The Advanced Technology Microwave Sounder (ATMS) on board Suomi NPP is a 22 channel microwave sounder that provides continuous cross-track scanning in an 824 km sun-synchronous orbit. The reprocessed (versions RP1 & RP2) Temperature Data Records (TDR) from ATMS provide Level 1b geolocated antenna temperatures, calibration data counts, and ephemeris data produced from ATMS Raw Data Records (RDR).

The Cross-track Infrared Sounder (CrIS) provides high resolution infrared observations across the short-wave, medium-wave, and long-wave infrared spectrum. This reprocessed Sensor Data Record (SDR) from CrIS provides Level 1b calibrated and geolocated radiance data produced from CrIS Raw Data Records (RDR). This SDR was generated by the Center for Satellite Applications and Research (STAR) using the latest CrIS calibration coefficients and algorithms.

The global Level-1B (L1B) reprocessed (versions RP1 & RP2) Sensor Data Records (SDR) from the Ozone Mapping and Profiling Suite (OMPS) provides calibrated and geolocated radiances produced from OMPS Raw Data Records (RDR). The data are derived from backscattered UV radiation (between 250-310 nm) detected by the OMPS Nadir Profiler (NP) at a spatial resolution of 250 km at nadir.

The global Level-1B (L1B) reprocessed (versions RP1 & RP2) Sensor Data Records (SDR) from the Ozone Mapping and Profiling Suite (OMPS) provide calibrated and geolocated radiance data produced from OMPS Raw Data Records (RDR). The data are derived from ultraviolet, visible, and near infrared observations (between 300-380 nm) detected by the OMPS Nadir Total Column Mapper at a spatial resolution of 50 km at nadir.

The Visible Infrared Imaging Radiometer Suite (VIIRS) is a scanning radiometer that collects visible and infrared imagery and radiometric measurements of the land, atmosphere, cryosphere, and oceans. Level-1b reprocessed Sensor Data Records (SDRs) from from VIIRS are the calibrated and geolocated radiance and reflectance data produced from the Raw Data Records.

This metadata record encompasses all Non-Gridded Intermediate Products (IP) produced from observations acquired by the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the Suomi-NPP satellite. VIIRS Intermediate Products (IP) are generated at a specific point in the data processing stream, stored for a finite period of time, and used internally as an input to other data processing applications. These IPs are generated from reprocessed VIIRS Sensor Data Records (SDR) and are used as inputs for generating VIIRS Environmental Data Records (EDR).

This Level-2 (L2) Environmental Data Record (EDR) provides cloud cover layers detected with VIIRS I-band (750 m) channels onboard the Suomi-NPP and NOAA-20 satellites. The Cloud Cover Layer (CCL) retrieval algorithm derives cloud fraction, including supercooled and convective clouds, at a predefined spatial resolution and between specified atmospheric levels. It also retrieves total cloud fraction from surface to top of the atmosphere at the same resolution. CCL information is primarily derived from VIIRS cloud mask and cloud top products.

The Advanced Scatterometer (ASCAT) real aperture radar is a C-band dual swath fan beam radar scatterometer onboard the European MetOp satellite series. The instrument uses radar to measure backscatter to determine wind speed and direction over the surface of the ocean. ASCAT Level-2 ocean surface wind products are generated by NOAA with ASCAT L1B data from the European Organization for Meteorological Satellites (EUMETSAT).

The Advanced Scatterometer (ASCAT) real aperture radar is a C-band dual swath fan beam radar scatterometer onboard the European METOP satellite series. The instrument uses radar to measure backscatter to determine wind speed and direction over the surface of the ocean. ASCAT Level-2 Ultra High Resolution (UHR) storm wind retrieval measurements are generated by NOAA with ASCAT L1B data from the European Organization for Meteorological Satellites (EUMETSAT).