NDLI: Observed (1970–1999) climate variability in Central America using a high-resolution meteorological dataset with implication to climate change studies

Content Provider	Springer Nature Link
Author	Hidalgo, H.G. Alfaro, E.J. Quesada Monta, B.
Copyright Year	2016
Abstract	High spatial resolution of precipitation (P) and average air temperature (Tavg) datasets are ideal for determining the spatial patterns associated with large-scale atmospheric and oceanic indexes, and climate change and variability studies, however such datasets are not usually available. Those datasets are particularly important for Central America because they allow the conception of climate variability and climate change studies in a region of high climatic heterogeneity and at the same time aid the decisionmaking process at the local scale (municipalities and districts). Tavg data from stations and complementary gridded datasets at 50 km resolution were used to generate a high-resolution (5 km grid) dataset for Central America from 1970 to 1999. A highresolution P dataset was used along with the new Tavg dataset to study climate variability and a climate change application. Consistently with other studies, it was found that the 1970-1999 trends in P are generally non-significant, with the exception of a few small locations. In the case of Tavg, there were significant warming trends in most of Central America, and cooling trends in Honduras and northern Panama. When the sea surface temperature anomalies between the Tropical Pacific and the Tropical Atlantic have different (same) sign, they are a good indicator of the sign of P (Tavg) annual anomalies. Even with non-significant trends in precipitation, the significant warming trends in Tavg in most of Central America can have severe consequences in the hydrology and water availability of the region, as the warming would bring increases in evapotranspiration, drier soils and higher aridity.
Starting Page	13
Ending Page	28
Page Count	16
File Format	PDF
ISSN	01650009
Journal	Climatic Change
Volume Number	141
Issue Number	1
e-ISSN	15731480
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-10-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Atmospheric Sciences Climate Change/Climate Change Impacts
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Global and Planetary Change

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