A coral oxygen isotope record from the northern Red Sea documenting NAO, ENSO, and North Pacific teleconnections on Middle East climate variability since the year 1750.

A coral oxygen isotope record from the northern Red Sea documenting NAO, ENSO, and North Pacific teleconnections on Middle East climate variability since the year 1750.
Paleoceanography v.15, pp. 679-694, December 2000.

Thomas Felis1, Jürgen Pätzold1, Yossi Loya,
Maoz Fine, Ahmed H. Nawar, and Gerold Wefer1.
1Fachbereich Geowissenschaften, Universität Bremen.

ABSTRACT:
A 245-year coral oxygen isotope record from the northern Red Sea (Ras Umm Sidd/Egypt, ~28°N) in bimonthly resolution is presented. The mean annual coral d18O signal apparently reflects varying proportions of both sea surface temperature and d18Oseawater variability. In conjunction with instrumental observations of climate the coral record suggests for interannual and longer timescales that colder periods are accompanied by more arid conditions in the northern Red Sea but increased rainfall in the southeastern Mediterranean, whereas warmer periods are accompanied by decreased rainfall in the latter and less arid conditions in the northern Red Sea. A ~70-year oscillation of probably North Atlantic origin dominates the coral time series. Interannual to interdecadal variability is correlated with instrumental indices of the North Atlantic Oscillation (NAO), the El Niño- Southern Oscillation (ENSO), and North Pacific climate variability. The results suggest that these modes contributed consistently to Middle East climate variability since at least 1750, preferentially at a period of ~5.7 years.

Download the del 18O data and data description from this study from the WDC Paleo Archive.

To read or view the full study, please visit the Paleoceanography website.
It was published in Paleoceanography v.15, pp. 679-694, December 2000.

Contact Us
National Oceanic and Atmospheric Administration
1 December 2000