Fisher Folk’s Response to Climate Change in New Bussa and its Environs of Kainji Lake Basin, Nigeria

2014 ◽  
Vol 9 (6) ◽  
pp. 312-318
Author(s):  
T. Olowosegun ◽  
A.O. Odunuga ◽  
E.J. Landu ◽  
O.M. Olowosegun
Keyword(s):  
Climate Change ◽  
Lake Basin ◽  
Kainji Lake

scholarly journals Hydrologic evaluation and effects of climate change on the Nong Han Lake Basin, northeastern Thailand

2019 ◽  
Vol 11 (4) ◽  
pp. 992-1000
Author(s):  
Jirawat Supakosol ◽  
Kowit Boonrawd
Keyword(s):  
Climate Change ◽  
Assessment Tool ◽  
Swat Model ◽  
Climate Projections ◽  
Lake Basin ◽  
Model Soil ◽  
Regional Climates ◽  
Water Assessment ◽  
Effective Water ◽  
Northeastern Thailand

Abstract The purpose of this study is to investigate the future runoff into the Nong Han Lake under the effects of climate change. The hydrological model Soil and Water Assessment Tool (SWAT) has been selected for this study. The calibration and validation were performed by comparing the simulated and observed runoff from gauging station KH90 for the period 2001–2003 and 2004–2005, respectively. Future climate projections were generated by Providing Regional Climates for Impacts Studies (PRECIS) under the A2 and B2 scenarios. The SWAT model yielded good results in comparison to the baseline; moreover, the results of the PRECIS model showed that both precipitations and temperatures increased. Consequently, the amount of runoff calculated by SWAT under the A2 and B2 scenarios was higher than that for the baseline. In addition, the amount of runoff calculated considering the A2 scenario was higher than that considering the B2 scenario, due to higher average annual precipitations in the former case. The methodology and results of this study constitute key information for stakeholders, especially for the development of effective water management systems in the lake, such as designing a rule curve to cope with any future incidents.

scholarly journals Assessing Climate Change Impacts on River Flows in the Tonle Sap Lake Basin, Cambodia

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 618 ◽  
Author(s):  
Chantha Oeurng ◽  
Thomas Cochrane ◽  
Sarit Chung ◽  
Mathias Kondolf ◽  
Thanapon Piman ◽  
...  
Keyword(s):  
Climate Change ◽  
General Circulation ◽  
Rapid Development ◽  
Dry Season ◽  
Freshwater Ecosystem ◽  
Lake Basin ◽  
River Flows ◽  
Water Flows ◽  
Tonle Sap Lake ◽  
Tonle Sap

The Tonle Sap is the most fertile and diverse freshwater ecosystem in Southeast Asia, receiving nurturing water flows from the Mekong and its immediate basin. In addition to rapid development in the Tonle Sap basin, climate change may threaten natural flow patterns that sustain its diversity. The impacts of climate change on river flows in 11 sub-basins contributing to the Tonle Sap Lake were assessed using the Soil and Water Assessment Tool (SWAT) model to quantify the potential magnitude of future hydrological alterations. Projected river flows from three General Circulation Models (GFDL-CM3, GISS-E2-R-CC and IPSL-CM5A-MR) for three time horizons (2030s, 2060s and 2090s) indicate a likely decrease in both the wet and dry season flows. The mean annual projected flow reductions range from 9 to 29%, 10 to 35% and 7 to 41% for the 2030s, 2060s and 2090s projections, respectively. Moreover, a decrease in extreme river flows (Q5 and Q95) was also found, which implies there could be a decline in flood magnitudes and an increase in drought occurrences throughout the basin. The results of this study provide insight for water resources planning and adaptation strategies for the river ecosystems during the dry season, when water flows are projected to decrease.

scholarly journals Impacts of regional climate and teleconnection on hydrological change in the Bosten Lake Basin, arid region of northwestern China

2017 ◽  
Vol 9 (1) ◽  
pp. 74-88 ◽  
Author(s):  
Huaijun Wang ◽  
Yingping Pan ◽  
Yaning Chen
Keyword(s):  
Climate Change ◽  
Northern Hemisphere ◽  
Air Temperature ◽  
Large Scale ◽  
Southern Oscillation ◽  
Polar Vortex ◽  
Circulation Index ◽  
Lake Basin ◽  
Area Index ◽  
Bosten Lake

Abstract This investigation examined effects of climate change, measured as annual, seasonal, and monthly air temperature and precipitation from 1958 to 2010, on water resources (i.e., runoff) in the Bosten Lake Basin. Additionally, teleconnections of hydrological changes to large-scale circulation indices including El Nino Southern Oscillation (ENSO), Arctic Oscillation (AO), North Atlantic Oscillation (NAO), Tibetan High (XZH), westerly circulation index (WI), and northern hemisphere polar vortex area index (VPA) were analyzed in our study. The results showed the following. (1) Annual and seasonal air temperature increased significantly in the Bosten Lake Basin. Precipitation exhibited an increasing trend, while the significance was less than that of temperature. Abrupt changes were observed in 1996 in mountain temperature and in 1985 in plain temperature. (2) Runoff varied in three stages, decreasing before 1986, increasing from 1987 to 2003, and decreasing after 2003. (3) Precipitation and air temperature have significant impacts on runoff. The hydrological processes in the Bosten Lake Basin were (statistically) significantly affected by the northern hemisphere polar vortex area index (VPA) and the Tibetan High (XZH). The results of this study are good indicators of local climate change, which can enhance human mitigation of climate warming in the Bosten Lake Basin.

The 8.2-ka abrupt climate change event in Brown's Lake, northeast Ohio

2007 ◽  
Vol 67 (2) ◽  
pp. 292-296 ◽  
Author(s):  
Brian Lutz ◽  
Gregory Wiles ◽  
Thomas Lowell ◽  
Joshua Michaels
Keyword(s):  
Climate Change ◽  
Sediment Cores ◽  
Ice Cores ◽  
Abrupt Climate Change ◽  
Lake Basin ◽  
Two Phase ◽  
Sediment Grain Size ◽  
Radiocarbon Dates ◽  
Loess Deposition ◽  
Change Event

AbstractMany Northern Hemisphere paleoclimatic records, including ice cores, speleothems, lake sediments, ocean cores and glacier chronologies, indicate an abrupt cooling event about 8200 cal yr BP. A new well-dated series of sediment cores taken from Brown's Lake, a kettle in Northeast Ohio, shows two closely spaced intervals of loess deposition during this time period. The source of loess is uncertain; however, it is likely from an abandoned drainage and former glacial lake basin located to the north of the stagnant ice topography that gave rise to the kettle lake. Strong visual stratigraphy, loss on ignition data and sediment grain size analyses dated with 3 AMS radiocarbon dates place the two intervals of loess deposition between 8950 and 8005 cal yr BP. The possibility of a two-phase abrupt climate change at this time is a finding that has been suggested in other research. This record adds detail to the spatial extent and timing as well as possible structure of the 8.2-ka abrupt climate change event.

Effects of climate change on annual streamflow using climate elasticity in Poyang Lake Basin, China

2012 ◽  
Vol 112 (1-2) ◽  
pp. 169-183 ◽  
Author(s):  
Shanlei Sun ◽  
Haishan Chen ◽  
Weimin Ju ◽  
Jie Song ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Climate Change ◽  
Poyang Lake ◽  
Lake Basin ◽  
Annual Streamflow ◽  
Climate Elasticity ◽  
Poyang Lake Basin
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