The First Year of the Hyper-Angular Rainbow Polarimeter (HARP2) on the NASA PACE mission: Performance, Science, and Synergy

Résumé fourni par la source

Over the past year, the Hyper-Angular Rainbow Polarimeter (HARP2) multi-angle imaging polarimeter instrument on the NASA Plankton Aerosol Cloud ocean Ecosystem (PACE) mission observed the entire Earth every two days. HARP2 measures total and polarized radiances over four spectral channels (440/550/670/870 nm), at up to 90 distinct viewing directions, and over a 114° field-of-view (1550 km cross-track swath). This large volume of daily information requires new approaches to on-orbit operations, data processing, calibration, and science. In this work, we celebrate and recap the first year of HARP2 on PACE – from pre-launch to on-orbit calibration (solar/lunar/vicarious), exciting new and synergistic science products for cloud, aerosol, and ocean properties, and co-located intercomparisons with OCI, SPEXone, and AirHARP2 underflights during the recent NASA PACE-PAX field campaign. We close with a look ahead to HARP2 as a pathfinder for upcoming polarimetry missions.

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