Stochastic precipitation generators (SPGs) are a class of statistical models which generate synthetic data that can simulate dry and wet rainfall stretches for long durations. Generated precipitation time series data are used in climate projections, impact assessment of extreme …
"1413" Result
Sort By:
As we become more firmly established in the 21st century, the international system faces a number of increasingly more difficult challenges that pose threats to global security and human progress. Among these challenges, water scarcity and failing states have each received promi…
Herbivorous mammals in modern tropical ecosystems are characterized by a high degree of specialization, resulting in the systematic division of food resources among them. In order to test whether this also occurred within ancient tropical ecosystems, stable carbon and oxygen iso…
Kelvin waves are internal ocean waves that balance the Earth's Coriolis force against a wave boundary such as a coastline or the equator. In the Indian Ocean, Kelvin waves originate from Wyrtki jets off the east African coast and propagate along the equatorial wave guide until r…
The Nile crocodile Crocodylus niloticus currently has an extensive range throughout the African continent and Madagascar, though fossil and subfossil remains show that its historic range was considerably larger and included parts of the Sahara Desert, Mediterranean coast, and Ar…
The Nawalparasi district of Nepal lies in the headwaters of the South Asian Arsenic Crisis region, therefore, offers important insight into the arsenic mobilization process. This research characterizes temporal arsenic variability and other hydrologic parameters at 10 monitoring…
Bangladesh is one of the most vulnerable countries in terms of natural hazards due to its location and population density. Fishing communities of the coastal areas of Bangladesh are an especially vulnerable group of people due to natural disasters as well as socio-economic facto…
Geophysical signatures of volcano-hosted geothermal systems in Indonesia are compiled and synthesized. Parameters include electrical resistivity, seismicity, downhole logging, and pressure/temperature data; temperature and pressure states of systems are simulated through numeric…
Viewsheds are an important asset in military analysis for geographers in the war in Afghanistan due to the significantly diverse and rugged terrain of the battlefield. At the simplest level, viewsheds answer the question: "What areas can be seen from this location?" But the same…
Groundwater has an important role in forging the composition of surface water, supplying nutrients crucial for the development of balanced ecosystems and potentially introducing contaminants into otherwise pristine surface water. Due to water-rock interactions, radium (Ra) in gr…
Climate change and human land management can cause desertification. The latter phenomenon is an environmental issue affecting many drylands on Earth. During previous decades many regions were affected by desertification, and various other areas are at risk of becoming so. Desert…
Many fundamental concepts of rifting have been influenced by observation made in the Gulf of Suez as a result of detailed structural and sedimentological studies. Although the three-dimensional structural geometry of the rift is well understood, the timing of faulting, the natur…
The intraseasonal variability (ISV; 20-90 days) in Makassar Strait, the primary pathway for Pacific water flow into the Indian Ocean and a waveguide for transmitting subinertial energy from the tropical Indian Ocean to Indonesian seas, is investigated, using the 2004-2006 Intern…
The first paper presented in this dissertation attempts to examine the igneous history of the younger suite of Harohalli alkaline dykes intruding the Dharwar craton in southern India providing robust constraints on the age of the Harohalli alkaline dyke swarm paleomagnetic pole …
Processes that transport heat and mass govern the long-term evolution of planets and are responsible for surface geological features. This dissertation addresses the thermal and mechanical evolution of icy bodies and the mechanics of geyser and mud volcano eruptions. Some surfac…
Dissolved Organic Carbon (DOC) is one of the largest active organic carbon reservoirs formed from processes that break down terrestrial/aquatic matter and released from plant roots as exudates. In watersheds, DOC is continuously transported and processed through rivers, streams …
Guinea worm (Dracunculiasis) is a two-host, nematode parasite that is currently the focus of an international eradication effort. The remaining few of these parasites live in sub-Saharan and Sahelian Africa in the countries of Chad, Ethiopia, Mali, and South Sudan. By the end of…
The water industry is a heavy consumer of electricity to pump water. Electricity generated with fossil fuel sources produce greenhouse gas (GHG) emissions that contribute to climate change. Carbon taxation and economic discounting in project planning are promising policies to re…
The geochemical composition of thirty two (32) oil samples in the Central Sumatra Basin (CSB) were determined by gas chromatography (GC), gas chromatography coupled with mass spectrometry (GC-MS) and gas chromatography isotope ratio mass spectrometry (GC IR-MS). The carefully se…