Search Results - "Lydia A. Olaka"

Mapping, intensities and future prediction of land use/land cover dynamics using google earth engine and CA- artificial neural network model by Osman, Maysoon A A, Abdel-Rahman, Elfatih M, Onono, Joshua Orungo, Olaka, Lydia A, Elhag, Muna M, Adan, Marian, Tonnang, Henri E Z

“…Mapping of land use/ land cover (LULC) dynamics has gained significant attention in the past decades. This is due to the role played by LULC change in…”
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Analysis of Climate Variability and Trends in Southern Ethiopia by Abrham Belay, Teferi Demissie, John W. Recha, Christopher Oludhe, Philip M. Osano, Lydia A. Olaka, Dawit Solomon, Zerihun Berhane

“…This study investigated the trends and variability of seasonal and annual rainfall and temperature data over southern Ethiopia using time series analysis for…”
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Knowledge of climate change and adaptation by smallholder farmers: evidence from southern Ethiopia by Belay, Abrham, Oludhe, Christopher, Mirzabaev, Alisher, Recha, John W., Berhane, Zerihun, Osano, Philip M., Demissie, Teferi, Olaka, Lydia A., Solomon, Dawit

“…Climate change has the greatest negative impact on low-income countries, which burdens agricultural systems. Climate change and extreme weather events have…”
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Projected Climatic and Hydrologic Changes to Lake Victoria Basin Rivers under Three RCP Emission Scenarios for 2015–2100 and Impacts on the Water Sector by Olaka, Lydia A., Ogutu, Joseph O., Said, Mohammed Y., Oludhe, Christopher

“…Rivers in the Lake Victoria Basin support a multitude of ecosystem services, and the economies of the riparian countries (Kenya, Tanzania, Uganda, Rwanda, and…”
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High concentrations of dissolved biogenic methane associated with cyanobacterial blooms in East African lake surface water by Fazi, Stefano, Amalfitano, Stefano, Venturi, Stefania, Pacini, Nic, Vazquez, Eusebi, Olaka, Lydia A., Tassi, Franco, Crognale, Simona, Herzsprung, Peter, Lechtenfeld, Oliver J., Cabassi, Jacopo, Capecchiacci, Francesco, Rossetti, Simona, Yakimov, Michail M., Vaselli, Orlando, Harper, David M., Butturini, Andrea

“…The contribution of oxic methane production to greenhouse gas emissions from lakes is globally relevant, yet uncertainties remain about the levels up to which…”
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Climate Variability and Change Affect Crops Yield under Rainfed Conditions: A Case Study in Gedaref State, Sudan by Osman, Maysoon A. A., Onono, Joshua Orungo, Olaka, Lydia A., Elhag, Muna M., Abdel-Rahman, Elfatih M.

“…It is projected that, on average, annual temperature will increase between 2 °C to 6 °C under high emission scenarios by the end of the 21st century, with…”
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Dissolved Organic Matter in Continental Hydro-Geothermal Systems: Insights from Two Hot Springs of the East African Rift Valley by Butturini, Andrea, Amalfitano, Stefano, Herzsprung, Peter, Lechtenfeld, Oliver J., Venturi, Stefania, Olaka, Lydia A., Pacini, Nic, Harper, David M., Tassi, Franco, Fazi, Stefano

“…Little is known about the quantity and quality of dissolved organic matter (DOM) in waters from continental geothermal systems, with only a few reports…”
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Isotopic and trace element record of changing metal source contributions to tropical freshwater Lake Naivasha (Kenya) by Rosca, Carolina, Junginger, Annett, Kübler, Simon, Babechuk, Michael G., Olaka, Lydia A., Schoenberg, Ronny

“…Lake Naivasha, Kenya's second-largest freshwater body is a wetland of international ecological importance and currently subjected to unprecedented…”
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The effects of solar irradiation changes on the migration of the Congo Air Boundary and water levels of paleo-Lake Suguta, Northern Kenya Rift, during the African Humid Period (15–5ka BP) by Junginger, Annett, Roller, Sybille, Olaka, Lydia A., Trauth, Martin H.

“…The water-level record from the 300m deep paleo-lake Suguta (Northern Kenya Rift) during the African Humid Period (AHP, 15–5ka BP) helps to explain decadal to…”
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Groundwater fluoride enrichment in an active rift setting: Central Kenya Rift case study by Olaka, Lydia A., Wilke, Franziska D.H., Olago, Daniel O., Odada, Eric O., Mulch, Andreas, Musolff, Andreas

“…Groundwater is used extensively in the Central Kenya Rift for domestic and agricultural demands. In these active rift settings groundwater can exhibit high…”
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Sewage and Organic Pollution Compounds in Nairobi River Urban Sediments Characterized by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT–ICR–MS) by Downham, Rory P., Vane, Christopher H., Gannon, Benedict, Olaka, Lydia A., Barrow, Mark P.

“…Nairobi River sediments from locations adjacent to the Kawangware and Kiambio slums were analyzed via Fourier transform ion cyclotron resonance mass…”
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Holocene bidirectional river system along the Kenya Rift and its influence on East African faunal exchange and diversity gradients by Dommain, René, Riedl, Simon, Olaka, Lydia A., deMenocal, Peter, Deino, Alan L., Owen, R. Bernhart, Muiruri, Veronica, Müller, Johannes, Potts, Richard, Strecker, Manfred R.

“…East Africa is a global biodiversity hotspot and exhibits distinct longitudinal diversity gradients from west to east in freshwater fishes and forest mammals…”
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Does climate-smart agriculture improve household income and food security? Evidence from Southern Ethiopia by Belay, Abrham, Mirzabaev, Alisher, Recha, John W., Oludhe, Christopher, Osano, Philip M., Berhane, Zerihun, Olaka, Lydia A., Tegegne, Yitagesu T., Demissie, Teferi, Mutsami, Chrispinus, Solomon, Dawit

“…Climate change threatens African countries’ economic development and affects agriculture and food security. Ethiopia is especially vulnerable to the negative…”
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Can East African rift basalts sequester CO2? Case study of the Kenya rift by Okoko, George Otieno, Olaka, Lydia A.

“…Basalts have shown greater potential for faster and permanent sequestration of anthropogenic CO2 than sedimentary formations. Sequestration occurs through…”
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Human evolution in a variable environment: the amplifier lakes of Eastern Africa by Trauth, Martin H., Maslin, Mark A., Deino, Alan L., Junginger, Annett, Lesoloyia, Moses, Odada, Eric O., Olago, Daniel O., Olaka, Lydia A., Strecker, Manfred R., Tiedemann, Ralph

“…The development of the Cenozoic East African Rift System (EARS) profoundly re-shaped the landscape and significantly increased the amplitude of short-term…”
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Heavy metals in surface sediments of Lake Naivasha, Kenya: spatial distribution, source identification and ecological risk assessment by Olando, Grace, Olaka, Lydia A., Okinda, Philip O., Abuom, Paul

“…Heavy metals retained in sediments pose a threat to aquatic ecosystem and society. Knowledge of the status and sustainability of lake sediment in areas…”
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The sensitivity of East African rift lakes to climate fluctuations by Olaka, Lydia A., Odada, Eric O., Trauth, Martin H., Olago, Daniel O.

“…Sequences of paleo-shorelines and the deposits of rift lakes are used to reconstruct past climate changes in East Africa. These recorders of hydrological…”
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An East African perspective of the Anthropocene by Odada, Eric O., Olago, Daniel O., Olaka, Lydia A.

“…The advent of anthropogenic global warming and widespread modification of the climate, landscape and environment has brought humans to the fore as a formidable…”
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A Transdisciplinary Framework for AI-driven Disaster Risk Reduction for Low-income Housing Communities in Kenya by Triboan, Darpan, Obonyo, Esther A., Ayesh, Aladdin, Yerima, Suleiman Y., Basak, Barnali, Wang'Ombe, Wangari, Olago, Daniel, Olaka, Lydia A., Sznajder, Kristin K., Madivate, Carvalho

“…In the past 50 years, natural disasters worldwide have accounted for 2.06 million deaths and US3640 billion in economic losses. These natural disasters are…”
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Environmental variability in Lake Naivasha, Kenya, over the last two centuries by Stoof-Leichsenring, Kathleen R., Junginger, Annett, Olaka, Lydia A., Tiedemann, Ralph, Trauth, Martin H.

“…Lake Naivasha, Kenya, is one of a number of freshwater lakes in the East African Rift System. Since the beginning of the twentieth century, it has experienced…”
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