AirMSPI verison 6 ellipsoid-projected georegistered radiance product acquired during the ImPACT-PM flight campaign

AirMSPI_ImPACT-PM_Ellipsoid-projected_Georegistered_Radiance_Data is an AirMSPI ellipsoid-projected georegistered radiance product acquired during the JPL and Caltech Imaging Polarimetric Assessment and Characterization of Tropospheric Particulate Matter (ImPACT-PM) flight campaign. AirMSPI Level 1B2 products contain radiometric and polarimetric images of clouds, aerosols, and the surface of the Earth. In particular, products contain map-projected data at 8 wavelengths: 355, 380, 445, 470, 555, 660, 865, and 935 nm. The data products include radiance, time, solar zenith, solar azimuth, view zenith, and view azimuth for all spectral bands. Wavelengths for which polarization information is available (470, 660, and 865 nm) also include the Stokes parameters Q and U, as well as degree of linear polarization (DOLP) and angle of linear polarization (AOLP). Q, U, and AOLP are reported relative to both the scattering and view meridian planes. Files are distributed in HDF-EOS-5 format.

This release of AirMSPI data contains all targets acquired during the Imaging Polarimetric Assessment and Characterization of Tropospheric Particulate Matter (ImPACT-PM) flight campaign, which involved the ER-2 based out of Armstrong Flight Research Center in Palmdale, CA and a Navy Twin Otter flying the Caltech CIRPAS suite of instruments based out of Monterey, CA. The campaign was conducted to test a strategy to use multi-angle, spectro-polarimetric remote sensing to retrieve information on the distributions of atmospheric particle types, with emphasis on carbon-containing compounds, as a precursor to NASA’s Multi-Angle Imager for Aerosols, an Earth Venture-Instrument currently in formulation. AirMSPI data were acquired from July 5 through July 8, 2016.

Data and Resources

Additional Info

Field	Value
Maintainer	Earthdata Forum
Last Updated	September 15, 2026, 04:41 (UTC)
Created	April 1, 2025, 14:15 (UTC)
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	94866e51-49f9-4fcc-98b0-489b22da4cf2
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
identifier	10.5067/AIRCRAFT/AIRMSPI/IMPACT-PM/RADIANCE/ELLIPSOID_V006
license	https://www.usa.gov/government-works
modified	2026-09-07T22:16:03Z
programCode	{026:000}
publisher	NASA/LARC/SD/ASDC
resource-type	Dataset
source_datajson_identifier	true
source_hash	63f0dc2c4d736b9fa92ddd2edf445b76c7db1b5a655284f266444d7eb0ab9f5b
source_schema_version	1.1
spatial	["CARTESIAN", [{"Boundary": {"Points": [{"Latitude": -90, "Longitude": -180}, {"Latitude": -90, "Longitude": 180}, {"Latitude": 90, "Longitude": 180}, {"Latitude": 90, "Longitude": -180}, {"Latitude": -90, "Longitude": -180}]}}]], Maximum Altitude, 20 km
temporal	2016-07-05/2016-07-08
theme	{"Earth Science"}