Show simple item record

contributor authorChaney, Nathaniel W.
contributor authorSheffield, Justin
contributor authorVillarini, Gabriele
contributor authorWood, Eric F.
date accessioned2017-06-09T17:09:01Z
date available2017-06-09T17:09:01Z
date copyright2014/08/01
date issued2014
identifier issn0894-8755
identifier otherams-80172.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4223035
description abstractssessing changes in the frequency and intensity of extreme meteorological events and their impact on water resources, agriculture, and infrastructure is necessary to adequately prepare and adapt to future change. This is a challenge in data-sparse regions such as sub-Saharan Africa, where a lack of high-density and temporally consistent long-term in situ measurements complicates the analysis. To address this, a temporally homogenous and high-temporal- and high-spatial-resolution meteorological dataset is developed over sub-Saharan Africa (5°S?25°N), covering the time period between 1979 and 2005. It is developed by spatially downscaling the National Centers for Environmental Prediction?National Center for Atmospheric Research (NCEP?NCAR) reanalysis to a 0.1° spatial resolution, detecting and correcting for temporal inhomogeneities, and by removing random errors and biases by assimilating quality-controlled and gap-filled Global Summary of the Day (GSOD) in situ measurements. The dataset is then used to determine the statistical significance and magnitude of changes in climate extremes between 1979 and 2005. The results suggest a shift in the distribution of daily maximum and minimum temperatures toward a warmer mean with a faster increase in warm than cold events. Changes in the mean annual precipitation and heavy rainfall events are significant only in regions affected by the Sahel droughts of the 1970s and 1980s.
publisherAmerican Meteorological Society
titleDevelopment of a High-Resolution Gridded Daily Meteorological Dataset over Sub-Saharan Africa: Spatial Analysis of Trends in Climate Extremes
typeJournal Paper
journal volume27
journal issue15
journal titleJournal of Climate
identifier doi10.1175/JCLI-D-13-00423.1
journal fristpage5815
journal lastpage5835
treeJournal of Climate:;2014:;volume( 027 ):;issue: 015
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record