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The Impact of Climate Change on Hydrology with Geomorphology in Northeast Texas

Journal of Earth Science and Engineering 2018年第1期8卷 1-7页

作者： joonghyeok heo Physical Sciences Department University of Texas Permian Basin Odessa Texas 79762 USA

This research evaluates the responses of hydrology and geomorphology regarding climate change and illustrates the change in regional streamflow during the period 1955-2001. The Neches River Basin, Texas, is an important source of water for fanning, cities, and electrical power production. A 15.9% increase in precipitation and a 20.4% increase in streamflow discharge were observed. The areas of river-flow boundaries also increased. The hydrologic changes appear to be associated with the geomorphic adjustments. To accomplish this research, the Neches River Basin is evaluated using hydro-climate data, historical aerial photography, and GIS in a multiscale approach by using linked geomorphic systems. Changes in the streamflow discharge are main factors that must be considered in undertaking a hydrological impact assessment of climate change.

关键词： Hydrology Texas water resources Neches River Basin climate change.

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Investigations of Carbon Sequestration and Storage Using Advanced Geospatial Analysis

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Journal of Energy and Power Engineering 2018年第5期12卷 223-230页

作者： joonghyeok heo John DeCicco Physical Sciences Department University of Texas Permian Basin Odessa TX 79762 USA Energy Institute University of Michigan Ann Arbor MI 48109 USA

This research demonstrated quantitative methods of geospatial analysis applicable to carbon sequestration and storage in the conterminous United Sates. We identified national-scale NEP （net ecosystem production） changes for conversions to and from crop, and land in frequent conversion among forest, wetland, pasture and rangeland. The trend showed an increase in the margins of the Corn Belt states and coincided with land conversion from previous non-cropland to cropland in the United States. This research will not only improve the engineering understanding of carbon dioxide removal options involving the terrestrial biosphere, but will also inform decision-making in the carbon emission impacts. Therefore, it will provide a spatio-temporal reference for analyzing the national-level carbon exchange systems in the United States.

关键词： Carbon sequestration carbon exchange temporal filter spatial analysis zonal statistic.

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Spatial and Temporal Analysis of Carbon Sequestrations in the Conterminous United States

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Journal of Energy and Power Engineering 2018年第4期12卷 169-176页

作者： joonghyeok heo John M.DeCicco Physical Sciences Department University of Texas Permian BasinOdessaTX 79762USA Energy Institute University of MichiganAnn ArborMI 48109USA

This study develops geospatial analysis of terrestrial carbon exchange for the conterminous United State and estimates large-scale NEP （net ecosystem production） dynamic from 2008 to 2013. We apply land-use and land-cover data in order to coherently include cropland, forest, wetland and other ecologically active landscapes in the mapping. Our results show a distribution of high harvest carbon release in the Corn Belt states, in addition to hot spots around the US in areas like Southern California and Arizona. Harvest carbon is low in areas in the southern United States, and central/southern Appalachian Mountains. We identify NEP changes for coupled agricultural, forest and other high-carbon-uptake ecosystems systems, conversions to and from crop, and land in frequent conversion among forest, wetland, pasture and rangeland. Findings from this study will provide important information to support and promote the co-production of science and decision-making.

关键词： Spatial analysis carbon sequestration temporal change net ecosystem productivity.

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