Use the link below to share a full-text version of this article with your friends and colleagues. The driest month is January, with 19 mm | 0.7 inch of rainfall. Your feedback will go directly to Science X editors. Hui Gao, National Climate Center, China Meteorological Administration, Zhongguancun Nandajie 46#, Beijing, China 100081. The freezing point for the ocean's salt water is 28.4°. Die Temperaturen erreichen Höchstwerte um 10 Grad. A negative AMO (cooler ocean) is associated with reduced rainfall in the vulnerable Sahel region of Africa. The climate simulations suggest that these specific anomalies in sea surface temperatures can play a predominant role in promoting the change in the NAO. As a result, we expect the AMO is moving to a negative (colder surfer waters) phase. Number of times cited according to CrossRef: Sea-level pressure–air temperature teleconnections during northern hemisphere winter. Another well‐defined area, appearing in both analyses, is the area of the Labrador Sea and S Greenland. This article was originally published on The Conversation. Correlation and composition analysis suggests that the NNA SST and high temperature in northern China are connected by the mid‐latitude wave‐train circulation anomalies across the Atlantic and Europe. van Oldenborgh et al. It is found that the variations are closely connected to the phase of the North Atlantic Oscillation (NAO). The Atlantic is an city of the United States in the Region Iowa of the Country United States of America, Sioux City In the UK it would offer a brief respite from the rise of global temperatures, while less rainfall would mean more frequent summer barbeques. Water temperature in Indian Ocean in DecemberWater temperature in Baffin Bay in DecemberWater temperature in Bismarck Sea in December. Once we adjust for overall global warming trends, an oscillation in Atlantic sea-surface temperatures emerges. in 75 Min. in 15 Min. Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username, Dynamics of The Tropical Atmosphere and Oceans, Meteorological Measurements and Instrumentation, Fluid Dynamics of the Mid-Latitude Atmosphere, Time Series Analysis in Meteorology and Climatology: An Introduction, The Atmosphere and Ocean: A Physical Introduction, 3rd Edition, Quarterly Journal of Royal Meteorological Society Special Collections, Meteorological Applications Special Collections, I have read and accept the Wiley Online Library Terms and Conditions of Use. In December sea water temperature in some cities on the Atlantic Ocean coast is above 68°F/20°C and it is enough for comfortable bathing. Neither your address nor the recipient's address will be used for any other purpose. By using our site, you acknowledge that you have read and understand our Privacy Policy The information you enter will appear in your e-mail message and is not retained by Phys.org in any form. / ERSSTv3b, CC BY-SA. and you may need to create a new Wiley Online Library account. Get weekly and/or daily updates delivered to your inbox. and Terms of Use. We have measurements of the strength of the Gulf Stream flow in the Straits of Florida since 1982 and the flow across the Greenland-Scotland ridge since the mid-1990s. The eastern Mediterranean teleconnection pattern: identification and definition. North-Atlantic Weather Map. In the UK it tends to mean reduced summer rainfall – the mythical “barbeque summer”. The positive height anomaly and anticyclonic circulation in the south of Lake Baikal tend to result in downward motion and high temperature in northern China. The observations also suggest that it takes around 10-15 years before the positive phase of AMO has any significant effect on the NAO. The linkage between winter–spring North Atlantic SST and high temperature can be used to facilitate seasonal prediction of extreme high temperature in China. Your email address is used only to let the recipient know who sent the email. Sea-level fluctuations from Florida to Boston can be divided by Cape Hatteras, where the Gulf Stream leaves the coast to flow eastward. Our results show that ocean circulation responds to the first mode of Atlantic atmospheric forcing, the North Atlantic Oscillation, through circulation changes between the subtropical and subpolar gyres – the intergyre region. To arrive at their results, the researchers combined observations from the past century with climate simulations of the atmospheric response to the AMO. To see the details, select the country and then the city of your interest. This is known as the Atlantic Multidecadal Oscillation (AMO), and the transition between its positive and negative phases can be very rapid. In a year, the rainfall is 814 mm | 32.0 inch. SSTAs in the NNA in the previous December–April have a significant positive relationship with the mean Tmax from the Yellow River Basin to the north of the Yangtze River in June–July, and this significant positive correlation still exists after removing the trends. In Atlantic, the … Harlan We’re about to go into a cold phase. In Atlantic, the average annual temperature is 9.1 °C | 48.4 °F. and you may need to create a new Wiley Online Library account. When the AMO is in its positive phase and the sea surface temperatures are warmer, the study has shown that the main effect in winter is to promote the negative phase of the NAO which leads to "blocking" episodes over the North Atlantic sector, allowing cold weather systems to exist over the eastern US and Europe. Learn about our remote access options, Laboratory of Meteorology, Department of Physics, University of Ioannina, Ioannina, Greece. The prolonged negative AMO was associated with the infamous Ethiopian famine in the mid-1980s. Walnut Like its higher-frequency Pacific relative El Nino, this so-called “Atlantic Multidecadal Oscillation” can alter weather patterns throughout the world. Three distinct winter SAT patterns with two phases of nearly opposite signs and a time scale of 7–12 days are found: one pattern exhibits concurrent SAT anomalies of the same sign over North America (NA) and northern Eurasia, while the other two patterns show SAT anomalies of opposite signs between, respectively, NA and the Bering Sea, and the Kara Sea and East Asia (EA). The warmest month of the year is July, with an average temperature of 23.7 °C | 74.7 °F. The good news is our latest research, published in the journal Nature, gives us a much better understanding of these Atlantic oscillations. What is the ideal temperature for swimming? As the AMO has been in a positive phase since the early 1990s, it may have contributed to the extreme winters that both the US and Europe have experienced in recent years. Working off-campus? Denison If you do not receive an email within 10 minutes, your email address may not be registered, The Atlantic Ocean’s surface temperature swings between warm and cold phases every few decades. The ocean went through a warm period in the 1930s/1940s and again in the 1990s/2000s. The leading EOF of the winter cold (warm) surface air temperature (SAT) extreme frequency shows an enhanced occurrence over western (eastern) Europe. Copyright © 2001 Royal Meteorological Society. Muscle paralysingly cold. The researchers warn, however, that the future evolution of the AMO remains uncertain, with many factors potentially affecting how it interacts with atmospheric circulation patterns, such as Arctic sea ice loss, changes in solar radiation, volcanic eruptions and concentrations of greenhouse gases in the atmosphere. Apart from any fair dealing for the purpose of private study or research, no The Atlantic lies on 354m above sea level In Atlantic, the climate is cold and temperate. Maximum temperatures occur north of the equator, and minimum values are found in the polar regions. in 45 Min. The results have been published today, Wednesday 2 April, in IOP Publishing's journal Environmental Research Letters. Heart stoppingly cold. Glenn R McGregor, Winter North Atlantic Oscillation, temperature and ischaemic heart disease mortality in three English counties, International Journal of Biometeorology, 10.1007/s00484-004-0221-7, 49, 3, (197-204), (2004).
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