Sentences with phrase «atlantic multidecadal oscillations»

The researchers next considered the influence of two large weather patterns known to bring wetter conditions to the central United States — the El Niño - Southern Oscillation and the Atlantic Multidecadal Oscillation.

The climatic change at issue is known as the Atlantic Multidecadal Oscillation (AMO), a periodic cycle of warming and cooling of surface temperatures in the North Atlantic.

The Atlantic Multidecadal Oscillation is related to sea surface temperatures in the North Atlantic Ocean and, like El Niño, it affects weather far away.

Saba and colleagues used population models to evaluate the relative influence of climate indices including the Atlantic Multidecadal Oscillation, the North Atlantic Oscillation, and the El Niño Southern Oscillation.

There are two big climate influences on hurricanes — the Pacific Ocean's El Niño / La Niña cycle and the Atlantic Multidecadal Oscillation (AMO).

«Whether or not what we're seeing in the western U.S. is mainly a function of the [Atlantic Multidecadal Oscillation] or warming temperatures or some combination of both, we can't see,» Swetnam says.

The researchers compared this long fire record with weather patterns: the well - known El Nino and La Nina cycles that occur every two to seven years, as well as longer cycles called the Pacific Decadal Oscillation and the Atlantic Multidecadal Oscillation (AMO).

Predictions of global cooling in the short term are partly based on the idea that sea surface temperatures will fall in the northern Atlantic, due to slow, irregular swings in conditions known as the Atlantic Multidecadal Oscillation.

Researchers from the University of California Irvine have shown that a phenomenon known as the Atlantic Multidecadal Oscillation (AMO)-- a natural pattern of variation in North Atlantic sea surface temperatures that switches between a positive and negative phase every 60 - 70 years — can affect an atmospheric circulation pattern, known as the North Atlantic Oscillation (NAO), that influences the temperature and precipitation over the Northern Hemisphere in winter.

That was another period when you had the Pacific Decadal Oscillation and the Atlantic Multidecadal Oscillation chiming in together.

Van Houtan and Halley think the two oceanic cycles — the Pacific Decadal Oscillation (PDO) and the Atlantic Multidecadal Oscillation (AMO)-- can make or break a young turtle's survival; favorable cycles bring food and good weather, for example.

In 1995, this cycle, known as the Atlantic Multidecadal Oscillation, switched to a phase that generally leads to higher Atlantic Ocean temperatures.

We removed the influence of ENSO, the Pacific Decadal Oscillation (PDO62) and the Atlantic Multidecadal Oscillation (AMO63) from the MHW proxies using a statistical approach.

Finally, the El Niño - Southern Oscillation, Pacific Decadal Oscillation and Atlantic Multidecadal Oscillation each contribute to large variations in MHWs both regionally and globally.

Natural changes like the Atlantic Multidecadal Oscillation as well as more familiar shifts like El Niño are responsible for some of the year - to - year fluctuations in the number of hurricanes.

Naturally occurring interannual and multidecadal shifts in regional ocean regimes such as the Pacific El Niño - Southern Oscillation, the North Atlantic Oscillation, and the Atlantic Multidecadal Oscillation, for example, are bimodal oscillations that cycle between phases of warmer and cooler sea surface temperatures.

Most of flood periods coincided with the warm phase of the Atlantic Multidecadal Oscillation (AMO).

Spatial - temporal analysis of United States precipitation data from 1900 to 1999 indicates that the Atlantic Multidecadal Oscillation (AMO) primarily modulates drought frequency.

The Atlantic Multidecadal Oscillation (AMO), Pacific Decadal Oscillation (PDO), North Atlantic Oscillation (NAO), and El Niño - Southern Oscillation (ENSO) have all been found to significantly influence changes in surface air temperature and rainfall (climate) on decadal and multi-decadal scales, and these natural ocean oscillations have been robustly connected to changes in solar activity.

... On decadal to multidecadal timescales, the Pacific Decadal Oscillation (PDO), the Atlantic Multidecadal Oscillation, and the Atlantic tripole mode determine the variability of rainfall over India (Sen Roy et al., 2003; Lu et al., 2006; Zhang and Delworth, 2006; Li et al., 2008; Sen Roy, 2011; Krishnamurthy and Krishnamurthy, 2014a, 2014b, 2016b).

Prominently, this is manifested in the Atlantic Multidecadal Oscillation (AMO) in sea surface temperatures.

These indices are defined in analogy with the Atlantic Multidecadal Oscillation (AMO) index.

The Atlantic Meridional Overturning Circulation drives the Atlantic Multidecadal Oscillation?

In the Northwest Atlantic we expect recruitment varies with the Atlantic Multidecadal Oscillation (AMO).

Loggerhead juveniles disperse to regions whose climatic variability is characterized (a) in the North Atlantic by the Atlantic Multidecadal Oscillation (AMO) and (b) in the North Pacific by the Pacific Decadal Oscillation (PDO).

What they are not due to is the Pacific Multidecadal Oscillation (which is captured by the ENSO signal) or the Atlantic Multidecadal Oscillation (which does not have a suitable pattern to explain the phenomenon).

Using simulations of the last millennium to understand climate variability seen in palaeo - observations: Similar variation of Iceland - Scotland overflow strength and Atlantic Multidecadal Oscillation.

NOAA has issued its annual forecast for the hurricane season, along with its now - standard explanation that there is a natural cycle of multidecadal (40 - 60 year) length in the North Atlantic circulation (often referred to as the «Atlantic Multidecadal Oscillation» — see Figure), that is varying the frequency of Atlantic tropical cyclones, and that the present high level of activity is due to a concurrent positive peak in this oscillation.

«Multidecadal variability of Atlantic tropical cyclone activity is observed to relate to the Atlantic Multidecadal Oscillation (AMO)-- a mode manifesting primarily in sea surface temperature (SST) in the high latitudes of the North Atlantic.

In their paper Decadal Variations in the Global Atmospheric Land Temperatures, they find that the largest contributor to global average temperature variability on short (2 - 5 year) timescales in not the El Nino - Southern Oscillation (ENSO)(as everyone else believes), but is actually the Atlantic Multidecadal Oscillation (AMO).

The Pacific Decadal Oscillation and the Atlantic Multidecadal Oscillation have «fluttered» into their cooling phase under the impetus of the cooler sun.

If individuals truly interested in this topic don't, at a minimum, research the Atlantic Multidecadal Oscillation, the Pacific Decadal Oscillation, and the various solar cycles and their relationship with changes in temperatures, then I am afraid those individuals are no more interested in knowledge than a lazy 4th grader... they drink the Kool - Aid, but they won't do their homework.

It will take some time to integrate the findings of this study with other evidence of changes in North Atlantic ocean circulation, including the changes seen in salinity, changes in the so - called Atlantic Multidecadal Oscillation (AMO)(see e.g. Knight et al, 2005 and references therein) and other indicators of Atlantic climate change (e.g. Dickson et al, 2002).

«Atlantic Warm Pool Acting as a Link between Atlantic Multidecadal Oscillation and Atlantic Tropical Cyclone Activity»

Patterns of variability that don't match the predicted fingerprints from the examined drivers (the «residuals») can be large — especially on short - time scales, and look in most cases like the modes of internal variability that we've been used to; ENSO / PDO, the North Atlantic multidecadal oscillation etc..

Mike's work, like that of previous award winners, is diverse, and includes pioneering and highly cited work in time series analysis (an elegant use of Thomson's multitaper spectral analysis approach to detect spatiotemporal oscillations in the climate record and methods for smoothing temporal data), decadal climate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measurements).

However, the claims by certain scientists that the extremely active hurricane seasons of 2004/2005 were due to a cyclic phenomenon in the Atlantic ocean known as the «Atlantic Multidecadal Oscillation», in which an accelerating Gulf Stream causes warm water to move northward, were quite astounding and also unsupported.

Reminds me of the UK met Office annual predictions, which forecast annual global temperatures based on atlantic multidecadal oscillation, ENSO, solar, recent volcanic activity and, crucially, radiative forcing due to GHG.

I for one have published a number of papers very much arguing for its existence (e.g. Delworth and Mann, 2000 and Knight et all, 2005, you can find reprints of both here), and must confess that I actually coined the term «Atlantic Multidecadal Oscillation» in an interview with Richard Kerr of Science in 2000.

I'm curious what this means for the Atlantic Multidecadal Oscillation.

In the 1930s, warming was localised to the high latitudes, consistent with this warming being the result of a natural oscillation (the so - called «Atlantic Multidecadal Oscillation»).

«Northern Hemisphere summer monsoon intensified by mega-El Niño / southern oscillation and Atlantic multidecadal oscillation»

Another natural climate swing, called the Atlantic Multidecadal Oscillation, also contributes to the intensification of monsoon rainfall.

In the past 90 years, the Atlantic Multidecadal Oscillation has undergone three major transitions: warming in the 1930s and mid-1990s and cooling in the 1960s.

As noted in that post, RealClimate defines the Atlantic Multidecadal Oscillation («AMO») as, «A multidecadal (50 - 80 year timescale) pattern of North Atlantic ocean - atmosphere variability whose existence has been argued for based on statistical analyses of observational and proxy climate data, and coupled Atmosphere - Ocean General Circulation Model («AOGCM») simulations.

There is a natural variable I did not account for in this post, and it is the Atlantic Multidecadal Oscillation, or AMO.

The Atlantic Multidecadal Oscillation (AMO) or Variability (AMV) is a mode of low frequency (i.e., decadal to multidecadal) climate variability centered over the North Atlantic basin.

More recent work is identifying climate shifts working through the El Niño - Southern Oscillation (ENSO), Atlantic Multidecadal Oscillation (AMO), Pacific Decadal Oscillation (PDO), North Atlantic Oscillation (NAO), Southern and Northern Annular Modes (SAM and NAM), Artic Oscillation (AO), Indian Ocean Dipole (IOD), North Pacific Oscillation (NPO) and other measures of ocean and atmospheric states.

Periods of more frequent storm events over the two last centuries are analysed first in order to link these events with possible forcing mechanisms (North Atlantic Oscillation (NAO) and Atlantic Multidecadal Oscillation (AMO) modes) triggering the most destructive storms.

However the natural climate is always changing due to cycles of the sun, ocean oscillations like El Nino and the Atlantic Multidecadal Oscillation that alter the direction and strength of the winds, or natural landscape successions.