Solar radiation enters the Earth's atmosphere with a portion being scattered by clouds and aerosols.

Processing, archiving and distributing Earth science data
at the NASA Langley Research Center

  AirMSPI Level 1B2 V006 New Data for NASA's ORACLES Campaign
  AirMSPI Level 1B2 V005 New Data for NASA’s PODEX Campaign

AirMSPI Data and Information

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AirMSPI Data and Information

 

Airborne Multi-angle Spectro Polarimetric Imager (AirMSPI) is an airborne prototype instrument similar to that of the future satellite-borne MSPI instrument for obtaining multi-angle polarization imagery. AirMSPI flies on the NASA-owned ER-2 aircraft. The instrument was built for NASA by the Jet Propulsion Laboratory in Pasadena, California.

 

AirMSPI is an 8-band (355, 380, 445, 470, 555, 660, 865, 935 nm) pushbroom camera, measuring polarization in the 470, 660, and 865 nm bands, mounted on a gimbal to acquire multiangular observations over a ±67° along-track range. Two principal observing modes are employed: step-and-stare, in which 11 km x 11 km targets are observed at a discrete set of view angles with a spatial resolution of ~10 m; and continuous sweep, in which the camera slews back and forth along the flight track between ±67° to acquire wide area coverage (11 km swath at nadir, target length 108 km) with ~25 m spatial resolution. Step-and-stare provides more angles, but continuous sweep gives greater coverage. Multiple observing modes can be programmed into the instrument and activated under cockpit control. Multiangle radiance and polarization imagery from AirMSPI will (a) provide 3-D scene context where clouds and aerosol plumes are present, plus constraints on radiometric closure, particularly over heterogeneous scenes where 3-D radiative transfer may dominate, and (b) enable retrieval of aerosol and cloud macrophysical properties (distribution, height), microphysical properties (size distribution, single scattering albedo, shape), and optical depth.

Product Temporal Resolution Spatial Resolution Temporal Coverage
AirMSPI PODEX Terrain Data

Variable

Swath about 15km by 10km

01/14/2013 - 02/15/2013

AirMSPI PODEX Ellipsoid Data

Variable

Swath about 15km by 10km

01/14/2013 - 02/15/2013

Product Temporal Resolution Spatial Resolution Temporal Coverage
AirMSPI SEAC4RS Terrain Data

Variable

Swath

08/01/2013 - 09/23/2013

AirMSPI SEAC4RS Ellipsoid Data

Variable

Swath

08/01/2013 - 09/23/2013

Product Temporal Resolution Spatial Resolution Temporal Coverage
AirMSPI ORACLES Terrain Data

Variable

Swath about 15km by 10km

07/28/2016 - 10/06/2016

AirMSPI ORACLES Ellipsoid Data

Variable

Swath about 15km by 10km

07/28/2016 - 10/06/2016

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