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Full-Text Articles in Physical Sciences and Mathematics
Remote Sensing Sensors And Applications In Environmental Resources Mapping And Modelling, Assefa M. Melesse, Qihao Weng, Prasad S. Thenkbail, Gabriel B. Senay
Remote Sensing Sensors And Applications In Environmental Resources Mapping And Modelling, Assefa M. Melesse, Qihao Weng, Prasad S. Thenkbail, Gabriel B. Senay
Department of Earth and Environment
The history of remote sensing and development of different sensors for environmental and natural resources mapping and data acquisition is reviewed and reported. Application examples in urban studies, hydrological modeling such as land-cover and floodplain mapping, fractional vegetation cover and impervious surface area mapping, surface energy flux and micro-topography correlation studies is discussed. The review also discusses the use of remotely sensed-based rainfall and potential evapotranspiration for estimating crop water requirement satisfaction index and hence provides early warning information for growers. The review is not an exhaustive application of the remote sensing techniques rather a summary of some important applications …
Role Of Information And Communication Networks In Malaria Survival, Pallab Mozumder, Achla Marathe
Role Of Information And Communication Networks In Malaria Survival, Pallab Mozumder, Achla Marathe
Department of Earth and Environment
Background: Quite often symptoms of malaria go unrecognized or untreated. According to the Multilateral Initiative on Malaria, 70% of the malaria cases that are treated at home are mismanaged. Up to 82% of all malaria episodes in sub-Saharan Africa are treated outside the formal health sector. Fast and appropriate diagnosis and treatment of malaria is extremely important in reducing morbidity and mortality. Method: Data from 70 different countries is pooled together to construct a panel dataset of health and socio-economic variables for a time span of (1960–2004). The generalized two-stage least squares and panel data models are used to investigate …
Wetland Restoration Response Analysis Using Modis And Groundwater Data, Assefa M. Melesse, Vijay Nangia, Xixi Wang, Michael Mcclain
Wetland Restoration Response Analysis Using Modis And Groundwater Data, Assefa M. Melesse, Vijay Nangia, Xixi Wang, Michael Mcclain
Department of Earth and Environment
Vegetation cover and groundwater level changes over the period of restoration are the two most important indicators of the level of success in wetland ecohydrological restoration. As a result of the regular presence of water and dense vegetation, the highest evapotranspiration (latent heat) rates usually occur within wetlands. Vegetation cover and evapotranspiration of large areas of restoration like that of Kissimmee River basin, South Florida will be best estimated using remote sensing technique than point measurements. Kissimmee River basin has been the area of ecological restoration for some years. The current ecohydrological restoration activities were evaluated through fractional vegetation cover …
A Coupled Remote Sensing And Simplified Surface Energy Balance Approach To Estimate Actual Evapotranspiration From Irrigated Fields, Gabriel B. Senay, Michael Budde, James P. Verdin, Assefa M. Melesse
A Coupled Remote Sensing And Simplified Surface Energy Balance Approach To Estimate Actual Evapotranspiration From Irrigated Fields, Gabriel B. Senay, Michael Budde, James P. Verdin, Assefa M. Melesse
Department of Earth and Environment
Accurate crop performance monitoring and production estimation are critical for timely assessment of the food balance of several countries in the world. Since 2001, the Famine Early Warning Systems Network (FEWS NET) has been monitoring crop performance and relative production using satellite-derived data and simulation models in Africa, Central America, and Afghanistan where ground-based monitoring is limited because of a scarcity of weather stations. The commonly used crop monitoring models are based on a crop water-balance algorithm with inputs from satellite-derived rainfall estimates. These models are useful to monitor rainfed agriculture, but they are ineffective for irrigated areas. This study …