AOSC Seminar by Dr. Cory Martin, 3/2/2023
AOSC Seminar
Dr. Cory Martin
NOAA NWS NCEP EMC
Title:
Global Data Assimilation Plans at NCEP - The Transition to JEDI and Coupled DA
Abstract:
Currently, the Global Data Assimilation System (GDAS) at the National Centers for Environmental Prediction (NCEP) uses the Gridpoint Statistical Interpolation (GSI) software for computing operational analyses. As part of the transition to the Unified Forecast System (UFS), GSI is slated to be replaced by a Unified Data Assimilation (UDA) framework based on the Joint Effort for Data assimilation Integration (JEDI). Led by the Joint Center for Satellite Data Assimilation (JCSDA), groups from NOAA, NASA, the US Navy and Air Force, and the UK MetOffice all contribute to development and testing of JEDI software. Efforts are underway at NCEP on replacing all GSI-based assimilation components with JEDI-based components for a future implementation of the GDAS. Concurrent with the transition to new software infrastructure, NCEP is developing capabilities for coupled Earth system modeling and data assimilation (atmosphere, ocean, sea-ice, land, and composition), with the hope that UFS and JEDI will accelerate scientific innovations on this front. In this presentation, an overview of current validation and transition activities will be presented as well as results from initial testing of weakly-coupled data assimilation and prototype cycled systems in preparation for an upcoming version of the Global Forecast System (GFS).
Bio:
Dr. Cory Martin is a physical scientist in the Data Assimilation and Quality Control Group at the NOAA NWS National Centers for Environmental Prediction (NCEP) Environmental Modeling Center (EMC). His primary responsibilities are to aid in the transition of operational data assimilation systems to the Joint Effort for Data assimilation Integration (JEDI) framework and to help coordinate land surface and atmospheric composition data assimilation. He has a BS in atmospheric sciences from The Ohio State University and a MS and PhD in atmospheric and oceanic science from the University of Maryland, College Park.
Contact: Ning Zeng
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AOSC Seminar
Pre-seminar refreshment: N/A
Seminar: 3:30-4:30pm, Room: ATL 2400(only when in-person)
Meet-the-Speaker: 4:30-5:00pm, Room: ATL 3400(only when in-person) [For AOSC Students only]
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