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  GEO-CAPE Science

The GEO-CAPE mission satisfies science objectives for studies of both coastal ocean biophysics and atmospheric composition associated with air quality and short-lived climate forcers. It will also enable revolutionary interdisciplinary ocean/atmosphere science.

Atmosphere Science: Air quality measurements are urgently needed to understand the complex consequences of increasing anthropogenic pollutant emissions both regionally and globally
          • Atmosphere Science Traceability Matrix [PDF]

Ocean Science: Both short-term and long-term forecasts of the coastal ocean require better understanding of critical processes and sustained observing systems.
          • Ocean Science Traceability Matrix [PDF]

Interdisciplinary Science: The interconnections between the atmosphere and coastal waters are complex, involving nutrient delivery and bioavailability; deposition and biogeochemical cycling of toxic compounds, trace metals, and persistent organic pollutants; and air-sea trace gas exchange with coastal waters functioning both as sources and sinks.

Applications: GEO-CAPE also has important direct societal application in each domain.
          • Atmosphere Applications
          • Ocean Applications

Why Geostationary?

Geostationary orbit provides a continuous view of the part of the Earth that is below the satellite, enabling measurements many times per day to capture the diurnal evolution of tropospheric chemistry and the coastal oceans. A constellation of geostationary satellites positioned appropriately around the globe can provide quasi-global coverage, and thus similar geostationary missions planned by Europe and Asia present the opportunity to greatly enhance GEO-CAPE science through international partnerships.

  • Korea has placed the first geostationary Ocean Color mission in orbit, GOCI, with a planned operational follow-on; Europe is proposing geostationary Ocean Color missions.
  • A European geostationary air quality mission is in Phase B and on track for a 2018 launch. Similar Asian air quality missions are expected to be in orbit before the end of this decade.
  • GEO-CAPE as part of a global constellation will expand the value of each mission from regional to global, to address the globalization of air pollution and how local and regional emissions impact ozone and aerosol fluxes on local to global scales.

3 globe image of aerosol  and global distribution of pollution

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