研究旨在实验性地设计与开发基于手持设备操作系统iOS的移动水利信息APP模块,实现水利站网的雨情、风情和水情信息的实时查询与展示。研究从两个方面进行展开,其一是以Flex 4.6为基础开发平台,通过调用ArcGIS API for Flex进行手持设备...研究旨在实验性地设计与开发基于手持设备操作系统iOS的移动水利信息APP模块,实现水利站网的雨情、风情和水情信息的实时查询与展示。研究从两个方面进行展开,其一是以Flex 4.6为基础开发平台,通过调用ArcGIS API for Flex进行手持设备操作系统iOS平台下的APP模块的设计与开发;其二是借助ArcGIS Online公有云GIS平台实现水利信息的实时查询与展示。移动水利信息APP模块的设计与开发实现了水利信息的移动查询与实时获取,为管理决策提供了实时高效的信息平台。展开更多
Large-scale water pumping has caused significant decline in groundwater level in the Upper Arkansas corridor region, which in turn has triggered a chain of hydrological and ecological impacts. A newly developed concep...Large-scale water pumping has caused significant decline in groundwater level in the Upper Arkansas corridor region, which in turn has triggered a chain of hydrological and ecological impacts. A newly developed conceptualization groundwater data model was used to organize various datasets on the Upper Arkansas corridor groundwater system and to develop a MODFLOW model to simulate groundwater flow in the region from 1959 to 2005. The simulation results have shown a sig- nificant decline in groundwater level and the conversion of Arkansas River from a gaining river to a losing river in the western two-thirds of the study area. Correlation analysis between percentage of salt cedar and the hydrogeological conditions indicates that these hydrogeological changes at least partially account for invasion of salt cedar that is more drought tolerant. The analysis also illustrates the com- plexity of the interaction mechanisms between hydrological conditions and salt cedar distribution, and suggests the need for better data on salt cedar distribution with higher spatial resolution and across larger hydrological gradients.展开更多
文摘研究旨在实验性地设计与开发基于手持设备操作系统iOS的移动水利信息APP模块,实现水利站网的雨情、风情和水情信息的实时查询与展示。研究从两个方面进行展开,其一是以Flex 4.6为基础开发平台,通过调用ArcGIS API for Flex进行手持设备操作系统iOS平台下的APP模块的设计与开发;其二是借助ArcGIS Online公有云GIS平台实现水利信息的实时查询与展示。移动水利信息APP模块的设计与开发实现了水利信息的移动查询与实时获取,为管理决策提供了实时高效的信息平台。
基金supported by the Provost Office’s Targeted Excellence Program at Kansas State University,the U.S. National Science Foundation (No. EPS0553722)the United States Department of Agriculture/Agricultural Research Service (Co-operative Agreement 58-6209-3-018)
文摘Large-scale water pumping has caused significant decline in groundwater level in the Upper Arkansas corridor region, which in turn has triggered a chain of hydrological and ecological impacts. A newly developed conceptualization groundwater data model was used to organize various datasets on the Upper Arkansas corridor groundwater system and to develop a MODFLOW model to simulate groundwater flow in the region from 1959 to 2005. The simulation results have shown a sig- nificant decline in groundwater level and the conversion of Arkansas River from a gaining river to a losing river in the western two-thirds of the study area. Correlation analysis between percentage of salt cedar and the hydrogeological conditions indicates that these hydrogeological changes at least partially account for invasion of salt cedar that is more drought tolerant. The analysis also illustrates the com- plexity of the interaction mechanisms between hydrological conditions and salt cedar distribution, and suggests the need for better data on salt cedar distribution with higher spatial resolution and across larger hydrological gradients.
