Identifying threshold storm events and quantifying potential impacts of climate change on sediment yield in a small upland agricultural watershed of Ontario

2019 ◽  
Vol 33 (6) ◽  
pp. 920-931 ◽  
Author(s):  
Narayan Kumar Shrestha ◽  
Nabil Allataifeh ◽  
Ramesh Rudra ◽  
Prasad Daggupati ◽  
Pradeep K. Goel ◽  
...  
2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Ben Dudley Tombs ◽  
Janet Stephenson ◽  
Ben France-Hudson ◽  
Elisabeth Ellis

Climate change will place increasing numbers of homeowners in ‘property purgatory’, a state of financial insecurity arising from the foreseeability of eventual damage and uncertainty about means to recover their losses. The impacts of climate change-induced sea level rise and storm events are now certain, and exposed properties will likely incur insurance, mortgage and value loss. These effects could occur prior to physical damage, and existing inequities will be magnified. Current legal and institutional arrangements offer no clear pathway for those affected to recover funds in order to relocate themselves. We position property purgatory as an immediate practical challenge for those affected seeking to recover their losses, and as a legal question regarding undefined responsibilities of central and local government.


Hydrology ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 81
Author(s):  
Nura Boru Jilo ◽  
Bogale Gebremariam ◽  
Arus Edo Harka ◽  
Gezahegn Weldu Woldemariam ◽  
Fiseha Behulu

It is anticipated that climate change will impact sediment yield in watersheds. The purpose of this study was to investigate the impacts of climate change on sediment yield from the Logiya watershed in the lower Awash Basin, Ethiopia. Here, we used the coordinated regional climate downscaling experiment (CORDEX)-Africa data outputs of Hadley Global Environment Model 2-Earth System (HadGEM2-ES) under representative concentration pathway (RCP) scenarios (RCP4.5 and RCP8.5). Future scenarios of climate change were analyzed in two-time frames: 2020–2049 (2030s) and 2050–2079 (2060s). Both time frames were analyzed using both RCP scenarios from the baseline period (1971–2000). A Soil and Water Assessment Tool (SWAT) model was constructed to simulate the hydrological and the sedimentological responses to climate change. The model performance was calibrated and validated using the coefficient of determination (R2), Nash–Sutcliffe efficiency (NSE), and percent bias (PBIAS). The results of the calibration and the validation of the sediment yield R2, NSE, and PBIAS were 0.83, 0.79, and −23.4 and 0.85, 0.76, and −25.0, respectively. The results of downscaled precipitation, temperature, and estimated evapotranspiration increased in both emission scenarios. These climate variable increments were expected to result in intensifications in the mean annual sediment yield of 4.42% and 8.08% for RCP4.5 and 7.19% and 10.79% for RCP8.5 by the 2030s and the 2060s, respectively.


2016 ◽  
Author(s):  
International Food Policy Research Institute (IFPRI)

2014 ◽  
Author(s):  
International Food Policy Research Institute (IFPRI)

2018 ◽  
Vol 21 (2) ◽  
pp. 52-53
Author(s):  
Colin Tukuitonga

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