Temperature and surface pressure anomalies in Israel and the North Atlantic Oscillation |
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| Authors: | T Ben-Gai A Bitan A Manes P Alpert Y Kushnir |
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| Institution: | (1) Department of Geography, Tel Aviv University, Israel, IL;(2) Meteorology Service, Bet Dagan, Israel, IL;(3) Department of Geophysics and Planetary Sciences, Tel Aviv University, Israel, IL;(4) Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, USA, US |
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| Abstract: | Summary
Teleconnections associated with changing patterns of temperature and pressure anomalies over Israel during the second half
of the 20th century are investigated. Relatively high, statistically significant, correlation coefficients of −0.8 and +0.9
were found between the North Atlantic Oscillation (NAO) Index anomalies and smoothed (5 year running mean) cool season temperature
and surface pressure anomalies in Israel, respectively.
A relatively high positive correlation, (r = 0.8) was also found between the NAO Index anomalies and smoothed geopotential height of the 1000 hPa pressure level, during
the cool season at Bet Dagan radiosonde station located on the Israel Mediterranean coastal plain. Correlation coefficients
between NAO Index anomalies and the higher standard pressure levels, 850 and 700 hPa, decrease gradually and become negative
(not statistically significant) for the 500 hPa level.
Received January 25, 2000/Revised March 6, 2001 |
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