Spatiotemporal Analysis of Global Drivers in a Tropical Watershed: Etang Saumatre, Haiti

Authors: Helenmary M Hotz*, University of Massachusetts Boston, David A Merwin, Framingham State University, Alan D Christian, University of Massachusetts Boston
Topics: Environmental Science, Third World, Geographic Information Science and Systems
Keywords: GIS, Remote Sensing, Troical Watershed, Vegetation, Climate
Session Type: Paper
Day: 4/5/2019
Start / End Time: 8:00 AM / 9:40 AM
Room: Taylor, Marriott, Mezzanine Level
Presentation File: No File Uploaded

Due to a paucity of data, Haiti is one of the less studied countries in the world. The intent of this research is to develop a context to analyze global drivers in Haiti’s Etang Saumatre watershed to better understand the physical dynamics of the watershed as it pertains to rapid lake level rise of Etang Saumatre, Haiti’s largest lake. Landsat TM imagery is used to analyze vegetative change and to calculate Normalized Difference Vegetation Index (NDVI) statistics to assess the impact of climatic drivers to ecosystems and environmental degradation. Along with climate data acquired from the World Bank and Climate Hazard Group (CHIRPS) InfraRed Precipitation data archive, a spatiotemporal analysis from 1984 to 2014 examines the relationship between lake expansion and vegetative and climatic changes. Regression analysis suggests that vegetation and climatic changes do not significantly contribute to lake level rise.

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