Lang, Timothy

Roberts, Brent

NASA Technical Reports Server

IMERG-RT Early and Integrated Microwave Imager (IMWI) 
Surface Flux Product:
View of Hurricanes Irma, Jose, and Katia,
and relevance to CYGNSS
Brent Roberts and Timothy Lang
NASA MSFC
Earth Science Branch
https://ntrs.nasa.gov/search.jsp?R=20170009101 2019-08-29T23:22:51+00:00Z
Overview
• Real-time turbulent latent and sensible heat flux products being 
produced using NASA GPM L1C Microwave Brightness Temperatures 
(IMERG)
• Part of South Korea ICE-POP campaign supporting 2018 Winter Olympics
• Inputs: GMI, AMSR-2 from GCOM-W1, and SSMIS from F16 and F18
• Retrievals of near-surface wind speeds, as well as temperature (Ta) and 
humidity (Qa)
• Limitations in rainfall
IMERG-Early and Integrated Microwave Imager Wind Speed , 09-08-2017 
TD
TS+
IMERG-Early and Integrated Microwave Imager Wind Speed , 09-08-2017
Katia
Irma
Jose
IMERG-Early and Integrated Microwave Imager Latent Heat Flux , 09-08-2017
Katia
Irma
Jose
Relevance to CYGNSS
• JPL/UMich producing CYGNSS L2 wind-based flux products; MSFC 
assisting
• CYGNSS L2 winds can be used to fill in wind speed missing data –
CYGNSS not real-time, however
• Ta/Qa in rainfall? Ideas include using L1C, MERRA-2, and machine-
learning-based interpolation to fill in missing data; regime-based 
classification
• Lessons learned can be applied to CYGNSS flux products


IMERG-RT Early and Integrated Microwave Imager (IMWI) Surface Flux Product: View of Hurricanes Irma, Jose, and Katia, and Relevance to CYGNSS

Abstract

Similar works

Full text

Available Versions

NASA Technical Reports Server