Resilient Coasts in Times of Change and Disasters
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Dr. David Lagomasino
UMD Geographical Sciences
Monday February 25, 2019, 12:00-1:00 PM
ESSIC Conference Room 4102, 5825 University Research Ct, College Park, MD 20740
Abstract:
Hemmed in by development and weakened by hydrologic modifications and sea level rise, coastal wetlands around the world are being squeezed in all directions. The built environment restricts the natural landward migration of mangrove forests and the acceleration of rising seas threatens to drown vulnerable coastlines. Along with the chronic stressors, extreme events much like the 2017 and 2018 hurricane season can push the ecosystem toward collapse. Earth observations from air and space make it possible to monitor the long-term changes in these critical coastal ecosystems and the nearby urban communities that allows us to know when, where, and how fast the shoreline is changing.
Using multiple types of Earth Observations from lidar, radar, and optical sensors, we can get a better understanding of what is driving the changes along the coast and attribute those changes to natural and human stressors. From this data fusion, we can estimate the rate of aquacultural expansion into the mangrove forests of Southeast Asia, identify hotspots of retreating shorelines, and measure the impact of hurricanes on building infrastructure. This talk will focus on several unique studies that range from regionally-specific studies using high resolution datasets to global studies that take advantage of the Landsat archive. The goal of these efforts is to provide detailed information of human and natural disturbances that are linked with the reporting of international targets and contributions but will also aid in locally-relevant decision-making and disaster management.
Bio-sketch:
Dr. Lagomasino is an Assistant Research Professor in the Department of Geographical Sciences at the University of Maryland. He has worked in coastal ecosystems for the past 15 years including marshes, mangroves, and urban settings. Dr. Lagomasino specializes in developing spatially-explicit coastal landscape models that estimate changes in land cover, ecosystem services, and risk over time. His research includes field-based studies and remote sensing data over coastal margins to identify the magnitude and duration of disturbances from various human and natural impacts.
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