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The Instruments

The space segment is comprised of six elements. The spacecraft, the five instrument/sensor payloads, and the associated ground support equipment and simulators.

The five instruments manifested for flight on the Suomi NPP spacecraft trace their heritage to instruments on NASA's Terra, Aqua and Aura missions, on NOAA's Polar Operational Environmental Satellite (POES) spacecraft, and on DOD's Defense Meteorological Satellite Program (DMSP).

The spacecraft directly transmits stored mission sensor data to a receiving station in Svalbard, Norway, and will also provide continuous direct broadcast of real-time sensor data. The mission data will be routed on communications networks from Svalbard to the continental United States.

ATMS  The Advanced Technology Microwave Sounder (ATMS), a cross-track scanner with 22 channels, provides sounding observations needed to retrieve profiles of atmospheric temperature and moisture for civilian operational weather forecasting as well as continuity of these measurements for climate monitoring purposes.

+ Go to the ATMS page
VIIRS  VIIRS, a scanning radiometer, collects visible and infrared imagery and radiometric measurements of the land, atmosphere, cryosphere, and oceans. VIIRS data is used to measure cloud and aerosol properties, ocean color, sea and land surface temperature, ice motion and temperature, fires, and Earth's albedo. Climatologists use VIIRS data to improve our understanding of global climate change.

+ Go to the VIIRS page
CRIS  The Cross-track Infrared Sounder (CrIS), a Fourier transform spectrometer with 1305 spectral channels, will produce high-resolution, three-dimensional temperature, pressure, and moisture profiles. These profiles will be used to enhance weather forecasting models, and they will facilitate both short- and long-term weather forecasting.

+ Go to the CRIS page
OMPS  Ozone Mapping Profiler Suite (OMPS), an advanced suite of two hyper spectral instruments, extends the 25-plus year total-ozone and ozone-profile records. These records are used by ozone-assessment researchers and policy makers to track the health of the ozone layer. The improved vertical resolution of OMPS data products allows for better testing and monitoring of the complex chemistry involved in ozone destruction near the troposphere.

+ Go to the OMPS page
CERES  Clouds and the Earth's Radiant Energy System (CERES), a three-channel radiometer, measures both solar-reflected and Earth-emitted radiation from the top of the atmosphere to the surface. It also determines cloud properties including the amount, height, thickness, particle size, and phase of clouds using simultaneous measurements by other instruments.

+ Go to the CERES page

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