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RSS FeedsSustainability, Vol. 12, Pages 2896: Comparison and Bias-Correction of Satellite-Derived Precipitation Datasets at Local Level in Northern Kenya (Sustainability)

 
 

5 april 2020 18:00:08

 
Sustainability, Vol. 12, Pages 2896: Comparison and Bias-Correction of Satellite-Derived Precipitation Datasets at Local Level in Northern Kenya (Sustainability)
 


Understanding ongoing trends at local level is fundamental in research on climate change. However, in the Global South it is hampered by a lack of data. The scarcity of land-based observed data can be overcome through satellite-derived datasets, although performance varies according to the region. The purpose of this study is to compute the normal monthly values of precipitation for the eight main inhabited areas of North Horr Sub-County, in northern Kenya. The official decadal precipitation dataset from the Kenyan Meteorological Department (KMD), the Global Precipitation Climatology Centre (GPCC) monthly dataset and the Climate Hazards Group Infrared Precipitation with Stations (CHIRPS) monthly dataset are compared with the historical observed data by means of the most common statistical indices. The GPCC showed the best fit for the study area. The Quantile Mapping correction is applied to combine the high resolution of the KMD dataset with the high performance of the GPCC set. A new and more reliable bias-corrected monthly precipitation time series for 1983–2014 results for each location. This dataset allows a detailed description of the precipitation distribution through the year, which can be applied in the climate change adaptation and tailored territorial planning.


 
27 viewsCategory: Ecology
 
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