A091-0005
Development of a common Level-1C product to facilitate multi-sensor science from the NASA PACE Mission

Thursday, 10 December 2020
Poster
Kirk D Knobelspiesse1, Sean Bailey1, Brian Cairns2, Bryan A Franz1, Joel M Gales1, Meng Gao1, Otto P Hasekamp3, Jochen Landgraf3, Jose Vanderlei Martins4, Martin A Montes5, Frederick S Patt5, Andrew M Sayer1, Jeremy Werdell1 and Xiaoguang Xu6, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)NASA Goddard Institute for Space Studies, New York, NY, United States, (3)SRON Netherlands Institute for Space Research, Utrecht, Netherlands, (4)Earth and Space Institute, UMBC, Baltimore, MD, United States, (5)NASA Goddard Space Flight Center, Greenbelt, United States, (6)Joint Center for Earth Systems Technology, UMBC, Baltimore, MD, United States
Abstract:
The NASA Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission (Werdell et al., 2019) will contain three complementary instruments. The primary instrument is the Ocean Color Imager (OCI) a UV-VIS hyperspectral imager with additional SWIR channels. It is designed to be a powerful instrument for both ocean color and aerosol remote sensing (Remer et al., 2019a). The other instruments are multi-angle polarimeters (MAPs): the Hyper-Angular Rainbow Polarimeter 2 (HARP-2) and the Spectro-Polarimeter for Planetary Exploration (SPEXone). MAPs are highly sensitive to aerosols (Remer et al., 2019b), and the pair selected for PACE will have favorably divergent characteristics. HARP-2 has a wide swath and hyper-angle views with four spectral channels, while SPEXone has a narrow swath, and hyper-spectral sensitivity. All three will gather unique information about the aerosol state, and new algorithms are being created to exploit these measurements. These algorithms are being developed by the HARP-2 and SPEXone instrument teams, recently selected members of the PACE Science and Applications Team, and PACE Project Science office. Many will synergistically use observations from several of the PACE sensors. To aid the effort, we have created a “Level 1C” file format, which represents radiometric and polarimetric data from all three instruments and all viewing angles on the same spatial grid. We intend for this to be a powerful tool for the remote sensing community. In this talk, we will describe the Level 1C format from the perspective of an algorithm developer, provide details on the current status of PACE algorithm development, and give an overview of the role we expect PACE to have on aerosol remote sensing.

Remer, L. A., et al., 2019a, Retrieving Aerosol Characteristics From the PACE Mission, Part 1: Ocean Color Instrument, Frontiers in Earth Science, 7, 152. 10.3389/feart.2019.00152

Remer, L. A., et al., 2019b, Retrieving Aerosol Characteristics From the PACE Mission, Part 2: Multi-Angle and Polarimetry, Frontiers in Environmental Science, 7, 94. 10.3389/fenvs.2019.00094

Werdell, P. J., et al., 2019, The Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission: Status, science, advances, Bulletin of the American Meteorological Society, 2019. DOI:10.1175/BAMS-D-18-0056.1

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