Scientists show the potential impact of the new and proposed COSMIC-2 satellites on weather forecasts in a paper released online in Weather and Forecasting

Summary:   The Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) are satellites launched in 2006 to orbit the earth about 500 miles above ground. They use radio signals from Global Positioning System satellites in a process called “radio occultation” to measure temperature and moisture with high accuracy and resolution. These data have proven … Continue reading Scientists show the potential impact of the new and proposed COSMIC-2 satellites on weather forecasts in a paper released online in Weather and Forecasting

HRD Monthly Science Meeting of October 2019

October’s science meeting consisted of seven presentations: Sim Aberson -  “A comparison of SAMURAI, HEDAS, and radar analyses for Hurricane Patricia (and a sneak peek into Dorian)” Lisa Bucci - "Understanding the response of tropical cyclone structure to the assimilation of synthetic wind profiles" Hui Christophersen - "TROPICS Radiance OSSE Update" Xiaomin Chen -  “A … Continue reading HRD Monthly Science Meeting of October 2019

Paper on getting the best TC forecasts using NOAA’s G-IV published in Monthly Weather Review

Summary: During each hurricane season, NOAA’s Gulfstream-IV (G-IV) Hurricane Hunter aircraft measures wind, temperature, humidity, and pressure in and around hurricanes threatening the United States.  An instrument called the dropwindsonde is released from the G-IV to collect the data as it falls to the ocean surface.  The plane currently flies where we expect observations from the … Continue reading Paper on getting the best TC forecasts using NOAA’s G-IV published in Monthly Weather Review

HRD Monthly Science Meeting of August 2019

August’s science meeting consisted of three presentations: Lidia Cucurull - "An overview of the Global Observing Systems Analysis Group (GOSA)" Andy Hazelton - "HAFSB Performance for TS Barry and Invest 96L" Ghassan 'Gus' Alaka - "AOML Hurricane Model Viewer Demonstration" The three presentations are available on the anonymous ftp site at: ftp://ftp.aoml.noaa.gov/hrd/pub/blog/meetings/2019/Science/HRD_SciMeet_20190808.zip

HRD Monthly Science Meeting of May 2019

May’s science meeting consisted of seven presentations: Kelly Ryan: Projects featuring collaboration and consultation on OSEs, OSSEs, data visualization, and machine learning William Ramstrom: Nest Development for FV3 Michael Fischer: Potential mechanisms for two secondary eyewall formation events in Hurricane Irma (2017) Kelly Nunez (PSU): PV budget analysis of high resolution simulations to understand the … Continue reading HRD Monthly Science Meeting of May 2019

HRD Monthly Science Meeting of April 2019

April’s science meeting consisted of four presentations: Sim Aberson - A Preliminary Look at High-resolution HEDAS analyses of Pre-Sergio (2018) Xuejin Zhang - Development of Moving Nest in FV3GFS Ghassan Alaka - HWRF Verification: Overall Progress & 2018 Highlights Lisa Bucci - Exploring TC Predictability in an OSSE framework Three of the four presentations are … Continue reading HRD Monthly Science Meeting of April 2019

Paper on the tropical cyclone diurnal cycle as seen in a forecast model published in Monthly Weather Review

Summary: As tropical cyclones (TCs) move across the oceans, they begin to expand each day around sunset, with clouds reaching hundreds of miles from the center by the following afternoon. This daily “exhale” of the clouds is a feature of what we call the TC diurnal cycle. This study looks at the this cycle in … Continue reading Paper on the tropical cyclone diurnal cycle as seen in a forecast model published in Monthly Weather Review

Paper on possible improvements to forecasts from additional radio-occultation satellite data published in Monthly Weather Review

Summary: The Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) are a set of satellites that were launched in 2006 and orbit the earth about 500 miles above ground. They use radio signals from Global Positioning System (GPS) satellites in a process called “radio occultation” to measure temperature and moisture with high accuracy every 100 … Continue reading Paper on possible improvements to forecasts from additional radio-occultation satellite data published in Monthly Weather Review