Sentences with phrase «atmospheric patterns associated»

While the blocking pattern associated with the 2010 event was unusually intense and persistent, its major features were similar to atmospheric patterns associated with prior extreme heat wave events in the region since 1880, the researchers found.

These seem related to ocean and atmospheric patterns associated with cloud changes that — from the data — seem the dominant forcing in the satellite era by far.

While the new research didn't answer what led to the particular atmospheric patterns associated with extreme temperatures, Horton hopes that they can use the same approach from the study to try to figure that out.

The response to the model to varied snow cover did not resemble the PNA pattern but instead was much closer an atmospheric pattern associated with the NAO (North Atlantic Oscillation) or AO / NAM (Arctic Oscillation or Northern Annular Mode).

Not exact matches

The atmospheric circulation associated with this dipole pattern is known as the Walker circulation.

«The observed pattern of warming, comparing surface and atmospheric temperature trends, doesn't show the characteristic fingerprint associated with greenhouse warming,» wrote lead author David Douglas, a climate expert from the University of Rochester, in New York state.

The atmospheric circulation associated with this dipole pattern is known as the Walker circulation.

Since this circulation transports vast amounts of energy northwards, a slowing would influence atmospheric temperature contrasts and associated weather patterns, including in the UK.

«The authors write that «the El Niño - Southern Oscillation (ENSO) is a naturally occurring fluctuation,» whereby «on a timescale of two to seven years, the eastern equatorial Pacific climate varies between anomalously cold (La Niña) and warm (El Niño) conditions,» and that «these swings in temperature are accompanied by changes in the structure of the subsurface ocean, variability in the strength of the equatorial easterly trade winds, shifts in the position of atmospheric convection, and global teleconnection patterns associated with these changes that lead to variations in rainfall and weather patterns in many parts of the world,» which end up affecting «ecosystems, agriculture, freshwater supplies, hurricanes and other severe weather events worldwide.»»

We analyze spatial patterns of precipitation globally associated with forest loss by calculating shifts in the global tropical precipitation band, the Inter-Tropical Convergence Zone (ITCZ), associated with changes in cross-equatorial atmospheric heat transport using equation 2.21 from [33].

The large interannual to decadal hydroclimatic variability in winter precipitation is highly influenced by sea surface temperature (SST) anomalies in the tropical Pacific Ocean and associated changes in large - scale atmospheric circulation patterns [16].

Increased weed and pest pressure associated with longer growing seasons and warmer winters will be an increasingly important challenge; there are already examples of earlier arrival and increased populations of some insect pests such as corn earworm.64 Furthermore, many of the most aggressive weeds, such as kudzu, benefit more than crop plants from higher atmospheric carbon dioxide, and become more resistant to herbicide control.72 Many weeds respond better than most cash crops to increasing carbon dioxide concentrations, particularly «invasive» weeds with the so - called C3 photosynthetic pathway, and with rapid and expansive growth patterns, including large allocations of below - ground biomass, such as roots.73 Research also suggests that glyphosate (for example, Roundup), the most widely - used herbicide in the United States, loses its efficacy on weeds grown at the increased carbon dioxide levels likely to occur in the coming decades.74 To date, all weed / crop competition studies where the photosynthetic pathway is the same for both species favor weed growth over crop growth as carbon dioxide is increased.72

The authors however believe a positive AO and NAO leads to atmospheric wave train patterns which may have delayed opposite effects — leading to a negative AO and NAO later on in the season — and that is where especially associated European cold spells would originate from.

Investigates northeastern Pacific atmospheric circulation patterns that have historically (1949 — 2015) been associated with cool - season (October - May) precipitation and temperature extremes in California

The most likely candidate for that climatic variable force that comes to mind is solar variability (because I can think of no other force that can change or reverse in a different trend often enough, and quick enough to account for the historical climatic record) and the primary and secondary effects associated with this solar variability which I feel are a significant player in glacial / inter-glacial cycles, counter climatic trends when taken into consideration with these factors which are, land / ocean arrangements, mean land elevation, mean magnetic field strength of the earth (magnetic excursions), the mean state of the climate (average global temperature), the initial state of the earth's climate (how close to interglacial - glacial threshold condition it is) the state of random terrestrial (violent volcanic eruption, or a random atmospheric circulation / oceanic pattern that feeds upon itself possibly) / extra terrestrial events (super-nova in vicinity of earth or a random impact) along with Milankovitch Cycles.

Local weather, particularly extreme local weather, is often determined by fluctuations in large patterns of regional atmospheric pressure and sea surface temperatures, such as the Arctic Oscillation (and its close relative, the North Atlantic Oscillation) and other patterns associated with El Niño - Southern Oscillation (ENSO).

The projection of low atmospheric pressure associated with this storm event promotes a high Arctic Oscillation Index and forces a counterclockwise (cyclonic) wind pattern that accelerates the Transpolar Drift of sea ice across the Basin and out Fram Strait.

There is growing observational data, physical analysis of possible mechanisms, and model agreement that human - caused climate change is strengthening atmospheric circulation patterns in a way «which implies that the periodic and inevitable droughts California will experience will exhibit more severity...» «there is a traceable anthropogenic warming footprint in the enormous intensity of the anomalous ridge during winter 2013 — 2014 and the associated drought.»

The pattern is also associated with the negative phase of the Arctic Oscillation, which is the dominant atmospheric pattern observed during severe winters and comprises a weakened jet stream and more cold air intrusions southward from the Arctic into North America and Eurasia.

On a related note, there has been a considerable amount of recent interest focused upon a possible increase in the frequency and / or intensity of high - amplitude atmospheric wave patterns (and associated extreme weather events) due to enhanced warming of the Arctic over the past 2 - 3 decades.

The focus on Europe, aided by the increase in resolution, has revealed previously undiscussed impacts, particularly those associated with changing atmospheric circulation patterns.