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AMOC-Index since 900 CE with pronounced slowdown since ~1850; Rahmstorf et al. (2015) [5] Climate scientists Michael Mann of Penn State and Stefan Rahmstorf from the Potsdam Institute for Climate Impact Research suggested that the observed cold pattern during years of temperature records is a sign that the Atlantic Ocean's Meridional overturning circulation (AMOC) may be weakening.
A publication by the Climate System Research Center of the University of Massachusetts Amherst projects that, under the higher emissions scenario where global average temperature increases by 4.0–6.1 °C (7.2–11.0 °F), Cincinnati would experience over 80 days a year with temperatures over 90 °F (32 °C), and 29 days a year over 100 °F ...
Temperature anomaly is the difference, positive or negative, of a temperature from a base or reference value, normally chosen as an average of temperatures over a certain reference or base period. In atmospheric sciences , the average temperature is commonly calculated over a period of at least 30 years over a homogeneous geographic region, or ...
Cleveland, Ohio reached 101 °F on July 21. Akron-Canton airport said that it was its warmest year on record with an all time July record of 101 °F on July 7. [39] On July 8, the heat eased across the east as the high pressure center shifted west, causing hot weather once again build in the mountain states and the southwest U. S. [7] [8] [40]
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Data are provided as temperature anomalies against the seasonal average over a past basis period, as well as in absolute temperature values. The baseline period for the published temperature anomalies was changed in January 2021 from 1981-2010 to 1991-2020. [4] All the data products can be downloaded from the UAH server. [5]
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Evidence for a multidecadal climate oscillation centered in the North Atlantic began to emerge in 1980s work by Folland and colleagues, seen in Fig. 2.d.A. [5] That oscillation was the sole focus of Schlesinger and Ramankutty in 1994, [6] but the actual term Atlantic Multidecadal Oscillation (AMO) was coined by Michael Mann in a 2000 telephone interview with Richard Kerr, [7] as recounted by ...