Missions

Driven by powerful winds and intense rainfall, Typhoon Mawar emerged as a rapidly intensifying storm in the western Pacific Ocean. Originating from a tropical disturbance, the typhoon swiftly developed into a significant weather system, eventually making landfall on the U.S. territory of Guam on May 25, 2023, as a Category 4 typhoon. After hitting Guam, it further intensified into a Category 5 typhoon, making it one of the most powerful storms on record in the month of May. Download this video from the NASA Goddard Scientific Visualization Studio The combination of NASA’s IMERG precipitation

Above image: In-person attendees of the 2022 PMM Science Team Meeting. Below image: A selection of virtual attendees.

Affiliation: University of Coimbra, Earth and Space Science Center (CITEUC), Portugal Project Mentee: Simon Ageet

Presentations Monday, November 7th Session 1: Programatics (Chair: R. Kakar) 8:00 - 8:20 NASA HQ PMM Program Status R. Kakar Download 8:20 - 8:40 NASA PMM Science A. Hou Download 8:40 - 9:00 NASA TRMM Science S. Braun Download 9:00 - 9:20 NASA GPM Project A. Azarbarzin Download 9:20 - 9:40 Precipitation Processing System (PPS) E. Stocker Download 9:40 - 9:50 Announcements D. Kirschbaum (Chair: S. Braun) 10:20 - 10:40 JAXA TRMM/GPM Program Status R. Oki Download 10:40 - 11:00 JAXA TRMM Science Status Y. Takayabu Download 11:00 - 11:20 JAXA GPM Science Status K. Nakamura Download 11:20 - 11:40

One of the prime instruments onboard the GPM Core Observatory is the Dual-frequency Precipitation Radar (DPR). The DPR consists of a Ku-band precipitation radar (KuPR) and a Ka-band precipitation radar (KaPR). The KuPR, which operates at 13.6 GHz, is an updated version of the highly successful unit flown on the Tropical Rainfall Measuring Mission (TRMM). The KuPR and the KaPR are co-aligned on the GPM spacecraft bus such that the 5-km footprint location on the earth is the same.

The Global Precipitation Measurement (GPM) Microwave Imager (GMI) instrument is a multi-channel, conical- scanning, microwave radiometer serving an essential role in the near-global-coverage and frequent-revisit-time requirements of GPM. The instrumentation enables the Core spacecraft to serve as both a precipitation standard and as a radiometric standard for the other GPM constellation members. The GMI is characterized by thirteen microwave channels ranging in frequency from 10 GHz to 183 GHz. In addition to carrying channels similar to those on the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI), the GMI carries four high frequency, millimeter-wave, channels near 166 GHz and 183 GHz. With a 1.2 m diameter antenna, the GMI provides significantly improved spatial resolution over TMI.

The Global Precipitation Measurement (GPM) Core Observatory satellite operates in low Earth orbit, carrying two instruments for measuring Earth's precipitation and serving as a calibration standard for other members of the GPM satellite constellation. The satellite was developed and tested in-house at NASA Goddard Space Flight Center and launched from Tanegashima Space Center, Japan, on February 27th, 2014. The GPM Core Observatory orbits Earth at an inclination of 65 degrees, which enables it to cut across the orbits of other microwave radiometers and sample the latitudes where nearly all precipitation occurs. A non-sun-synchronous orbit that takes it around Earth roughly 16 times per day allows it to sample precipitation at different times of the day. Data is transmitted continuously to ground systems on Earth by the Tracking and Data Relay Satellite (TDRS) communications network.

Date: November 12-13th, 2013 Location: NOAA Center for Weather and Climate Prediction University of Maryland M Square Research Park College Park, MD 20740 Remote Meeting Information (WebEx) URL: https://meetings.webex.com/collabs/meetings/join?uuid=M1LOJW7ZTDS0C79V5… Meeting Number: 190 840 131 Audio Connection: Call-in toll number (US/Canada): 1-650-479-3207 Call-in toll-free number (US/Canada): 1-855-244-8681 Access code: 190 840 131 Presentations from yesterday are now available at: http://pmm.nasa.gov/meetings/2013-gpm-applications-workshop/presentatio… Info: The Global