Doctoral students, Carly Muir and Ryan Good, have been selected to participate in the NASA DEVELOP Program during summer 2019 through Science Systems and Applications, Inc. Part of NASA’s Applied Sciences Program, DEVELOP addresses environmental and public policy issues through interdisciplinary research projects that apply the lens of NASA Earth observations to community concerns around the globe. Bridging the gap between NASA Earth Science and society, DEVELOP builds capacity in both participants and partner organizations to better prepare them to address the challenges that face our society and future generations.

Ryan and Carly are both working at the Marshall Space Flight Center in Huntsville, Alabama, this summer. Ryan’s project focuses on evaluating drought indices to enhance early warning systems in Kenya, and Carly’s project is analyzing flood risk in coastal communities of Central America after natural disasters, such as tropical storms, tidal flooding, and tsunamis.

To learn more about NASA DEVELOP, visit

irma0001, Air Force Magazine. Hurricane Irma passes Cuba and approaches southern Florida on Sunday, Sept. 10, 2017, in a NASA satellite captured a night-time image of the storm in the Florida Straits and identified where the strongest storms were occurring within Irma’s structure. NOAA’s GOES-East satellite provided a visible image at the time of Irma’s landfall in the Florida Keys. NASA photo

Geography’s Dr. Corene Matyas and Dr. Joann Mossa recently spoke to several new outlets about the cause and result of Hurricane Irma.

9/7 Dr. Corene Matyas explains the mechanics of a Catergory 5 storm at

9/7 Dr. Corene Matyas talks to Canada’s CTV News channel about what #Florida can expect from Hurricane Irma

9/7 Dr. Matyas talks to BBC 5 Live (1h18m) about the impact of Hurricane Irma

9/7 Dr. Corene Matyas talks to David McCullagh about the projected #hurricane path of Hurricane Irma

9/8 Dr. Corene Matyas tells the BBC what might happen during Hurricane Irma

9/19 Dr. Joann Mossa explains why Florida flooded during Hurricane Irma on INTERSECTION: WHY FLORIDA FLOODS 






HERNANDEZ AYALA, KEELLINGS, WAYLEN, MATYASExtreme floods and their relationship with tropical cyclones in Puerto Rico

José J. Hernández Ayala, David Keellings, Peter R. Waylen & Corene J. Matyas

Article first published online: 12 SEPT 2017 Hydrological Sciences Journal

DOI: 10.1080/02626667.2017.1368521

ABSTRACT: An extreme value analysis (EVA) point process approach has been implemented to examine the flood characteristics of Puerto Rico when tropical cyclones (TCs) are present in the discharge series and when they are removed from it. Mean daily discharge values that exceeded the 99th percentile thresholds were used in both the TC and non-TC data series. In nine of the 12 stations the maximum discharge was associated with a TC, with hurricanes Hortense (1996), Georges (1998) and Eloise (1975) responsible for most of the maximum peaks at each site. Percentage changes in the generalized extreme value parameters, which include location (central tendency), scale (variance) and shape (skewness), between the TC and non-TC data exhibited a decrease in the majority of stations. Stations in the eastern interior and central region of the island showed the largest decrease in all parameters, in flood occurrences and in return periods when TCs were removed from the series.

Read the full publication at Hydrological Sciences Journal