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Observed GPCP precipitation trend (mm day-1 per decade) during (a) 1979-2014 and (b) 1979-2020. (c) AMIP6 and (d) CMIP6 historical full forcing simulated precipitation trend (mm day-1 per decade) during 1979-2014.

Observed Variability and Trends in Global Precipitation During the Satellite Era

ESSIC/CISESS scientists Guojun Gu and Robert Adler have a new article in Climate Dynamics that examines changes in global precipitation during the satellite (post-1979) era using the Global Precipitation Climatology Project (GPCP) V2.3 monthly precipitation analysis. They compared GPCP data with results from the Coupled Model Intercomparison Project phase 6 (CMIP6) and the Atmospheric Model Intercomparison Project (AMIP5) with the goal of improving current understanding of the effects of major physical mechanisms on precipitation change. They also aimed to assess the skills of current climate models and discover some clues for diagnosing possible limitations in observed precipitation.

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Figure: (Top panel) Rain-Rate predicted by eTRaP and observed by MRMS. (Bottom panel) Scatter plot and estimation metrics for Tropical Storm Fiona between September 18, 2022 12 UTC to September 19, 2022 12 UTC.

NPreciSe Evaluation of eTRaP during Tropical Storm Fiona

Tropical Storm Fiona struck Puerto Rico on September 17-18, 2022 causing catastrophic floods and leaving most of the island with a major power outage. Fiona is the first Atlantic storm this season to cause a major disaster. NPreciSe (NOAA Satellite Precipitation Validation System) led by the CISESS science team (Malar Arulraj, Veljko Petkovic, Ralph Ferraro, and Huan Meng), evaluated the performance of the Ensemble Tropical Rainfall Potential (eTRaP) forecasts during this event, using a recently added Multi-Radar/Multi-Sensor (MRMS) observation product over Caribbean Islands.

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A screenshot of the virtual attendees at the summer intern party

CISESS Welcomes Summer Interns in 2022

This past summer, ESSIC’s Cooperative Institute for Satellite Earth System Studies (CISESS) welcomed 22 interns to assist in the research of 24 ESSIC/CISESS scientists. Of the interns, three were graduate students, 14 were undergraduates and five were high school students. Several of these students were returning interns from previous semesters.

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Striping of MetOp-A MHS on July 1, 2019

Quantifying and Characterizing Striping of Microwave Humidity Sounder With Observation and Simulation

ESSIC/CISESS scientists John Xun Yang, Yalei You, and Rachael Kroodsma are co-authors on a new paper in IEEE Transactions on Geoscience and Remote Sensing alongside Sidharth Misra from NASA Jet Propulsion Laboratory and William Blackwell from MIT Lincoln Laboratory. Blackwell is also a two-time speaker for the ESSIC Seminar Series, the most recent of which can be viewed here.

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