A5041864145- Climate variability and models
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Land Use and Ecosystem Services
- Geophysics and Gravity Measurements
- Hydrology and Drought Analysis
- Remote Sensing and Land Use
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Rangeland Management and Livestock Ecology
- Wildlife Ecology and Conservation
- Soil and Land Suitability Analysis
- Disaster Management and Resilience
- Remote Sensing in Agriculture
- Water resources management and optimization
- Primate Behavior and Ecology
- Precipitation Measurement and Analysis
- GNSS positioning and interference
- Bat Biology and Ecology Studies
- Inertial Sensor and Navigation
- Urban and Rural Development Challenges
- Plant Water Relations and Carbon Dynamics
- Species Distribution and Climate Change
- Urban Heat Island Mitigation
- Amphibian and Reptile Biology
Medical City Dallas Hospital
2020
National Institute of Ecology
2020
The University of Texas at Austin
2016-2017
University of Oklahoma
2009-2015
Radar (United States)
2013
Abstract In this study we developed an impact factor formula (IFF) to quantitatively attribute separately the impacts of climate change and local human activities on hydrological response (i.e. run‐off) in a sub‐basin Yellow River for period 1950–2000. Using daily climatic data, first calibrated verified variable infiltration capacity (VIC) model baseline 1955–1970. Then basin's natural run‐off following three decades (1971–2000) using VIC without considering impacts, as is benchmarked by...
Abstract. Study of hydro-climatology at a range temporal scales is important in understanding and ultimately mitigating the potential severe impacts hydrological extreme events such as floods droughts. Using daily in-situ data over last two decades combined with recently available multiple-years satellite remote sensing data, we analyzed simulated, distributed hydrologic model, Nzoia, one major contributing sub-basins Lake Victoria East African highlands. The basin, semi arid climate, has no...
Urban area expansion is happening at much faster rates in Asian and African cities than elsewhere the world. This study uses multi-temporal Landsat images to map urban extent of six small large West Africa four different time steps from early 1970s–2010. The selected are Kumasi Ghana, Daloa Cote d'Ivoire, Abuja Kano Nigeria, Kindia Guinea, Ouagadougou Burkina Faso. All revealed significant growth both population; however, it was apparent that there a lot variability development. Exponential...
West Africa is one of the fastest growing regions world and depends heavily on rain-fed agriculture for its food production. This study evaluates 12 freely available land-cover land-use (LCLU) data sets at ecoregion, country, pixel levels in to estimate croplands. The selected are primarily derived using remote-sensing data, representing different time periods various classification schemes. result shows a very high variability estimated cropland all levels. Despite this variability, having...
This study investigates the potential change in hydrologic cycle Nzoia basin, one ofthe semi-arid basins of east Africa. An ensemble 16 Global Climate Models data under different emissions scenarios are used this study. The basin is expected to receive an increase precipitation all scenarios; from 5% 15% by theend century compared base period 1990-1999. However, a 2 5oC temperature create overall drier climate with reduced runoffs. decadal averaged seasonal trends show that major...
Abstract. Floods and droughts are common, recurring natural hazards in East African nations. Studies of hydro-climatology at daily, seasonal, annual time scale is an important understanding ultimately minimizing the impacts such hazards. Using daily in-situ data over last two decades combined with recently available multiple-years satellite remote sensing data, we analyzed simulated, a distributed hydrologic model, Nzoia, one major contributing sub-basins Lake Victoria highlands. The basin,...
The impact of climate change on society is one the most serious challenges this century. Observations have shown that Earth’s hydrologic cycle has intensified during past century as temperatures increased. Such in hydrology will affect nearly every aspect human well being, from agricultural productivity and energy use to flood control municipal industrial water supply. This study therefore, focuses using projection data (precipitation temperature) an ensemble 16 Global Climate Models (GCMs)...
Nepal is a mountainous country sandwiched between China and India that extends along the Hind Kush Himalayan range. The entire sits on geological formation has witnessed massive transformation in past several decades. Land degradation active Nepal. This study reviews causes of land based publicly available reports, books, journal articles, government policy regulations. review also uses global datasets to contextualize local conditions. shows topography; use cover change driven by population...