Cloud-Precipitation Hybrid Regimes and possible applications: Synoptic to Climate scales

Seminar by Dr. Daeho Jin from NASA Goddard Space Flight Center

23 August 2022
KST 10:30 – 11:30

The Seminar is being held in Room 1010 (Jasmin) – Integrated mechanical engineering building. Click here for the campus map.

Cloud Regimes (CRs), which is a set of dominant mixtures of cloud types represented by the means of similar co-variations of cloud top pressure (CTP) and optical thickness (COT), has been proven to be useful in various weather and climate studies. Recently, the CRs derived from Moderate Resolution Imaging Spectroradiometer (MODIS) cloud observations were enhanced to be more precise, by combining spatio-temporally matched Integrated Multi-satellitE Retrievals for GPM (IMERG) precipitation data: cloud-precipitation (hybrid) regimes (CPRs).

CPRs provide simple and easy classification of cloud and precipitation activity in a 1-degree grid cell, which enables various applications. As an example, the feature of CPRs easily identifying large-scale convective systems led to validate the performance of existing organization metrics, and enabled to re-visit the relationship between organized convection and energy budget at top-of-atmosphere (TOA). In addition, CPRs were also employed to provide observational support to verify “the temperature stratification mechanism” in the connection of the Madden-Julian oscillation (MJO) and quasi-biennial oscillation (QBO). These examples demonstrate a potential of CPRs to be used in various fields in weather and climate studies, thus looking forward to cooperation.