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LEO Science Seminar: Improving Tropical Cyclone Intensity Forecasts and Intensity and Structure Estimates Using Microwave Sounder Data

Presenter(s):

Galina Chirokova (CIRA/CSU, Research Scientist)
Zhixing Ruan (CIRA/CSU, Postdoctoral Fellow)
Mark DeMaria (CIRA/CSU, Senior Research Scientist)

 

Description:

Temperature and moisture retrievals from microwave (MW) sounders onboard low Earth orbiting (LEO) satellites provide information about the tropical cyclone (TC) structure that is not readily available from other sources. These data are especially important in remote locations, which comprise most of all global tropical cyclones (TCs). The unique data provided by MW sounders allow for determining TC intensity and structure parameters and can be also used to improve TC intensity forecast models. The operational MW sounders on the JPSS and MetOp satellites tend to have significant gaps in coverage, which makes it challenging to use MW data in operations. However, with the advancement of smallsat missions, we are getting more opportunities to continuously monitor global TCs with MW sounders. This presentation will discuss the updated operational CIRA Hurricane Intensity and Structure Algorithm (HISA), as well as new applications for TC intensity forecasting, including moisture flux, vortex tilt, and diagnostic of storm type from MW temperature and moisture retrievals. We will further present current research on applying the same algorithms to the smallsat mission TROPICS (Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats) and the possibility of expanding these to additional datasets.

 

Access:

meet.google.com/jpd-kosc-fwf
1-414-909-5759
PIN: ‪320 526 986#