Evaluation of AIRS Cloud Phase Classification over the Arctic Ocean Against Combined CloudSat-CALIPSO Observations ...

Cloud phase retrievals from the Atmospheric Infrared Sounder (AIRS) are evaluated against combined CloudSat-CALIPSO (CCL) observations using four years of data over the Arctic Ocean. AIRS cloud phase is evaluated over sea ice and open ocean separately using collocated CCL and AIRS fields of view (FO...

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Bibliographic Details
Main Author: Kahn, Brian
Format: Dataset
Language:unknown
Published: Root 2023
Subjects:
Online Access:https://dx.doi.org/10.48577/jpl.yq4lyt
https://dataverse.jpl.nasa.gov/citation?persistentId=doi:10.48577/jpl.YQ4LYT
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Summary:Cloud phase retrievals from the Atmospheric Infrared Sounder (AIRS) are evaluated against combined CloudSat-CALIPSO (CCL) observations using four years of data over the Arctic Ocean. AIRS cloud phase is evaluated over sea ice and open ocean separately using collocated CCL and AIRS fields of view (FOVs). Additionally, AIRS and CCL cloud phase occurrences are evaluated seasonally, zonally, and with respect to total column water vapor (TCWV) and lapse rate (Γ). Lastly, collocated MODIS cloud information is implemented in a one-month case study to assess the relationship between AIRS phase decisions, cloud cover and cloud phase throughout the AIRS FOV. Depending on the surface type, AIRS classification skill for single-layer ice and liquid-phase clouds is between 85%-95% and 22%-32%, respectively. Most unknown and liquid AIRS phase classifications correspond to mixed-phase clouds. AIRS ice- phase relative occurrence is biased low compared to CCL. However, the liquid-phase relative occurrence is similar between ...