Results 101 to 110 of about 586,079 (184)

Dual drivers of European severe weather: how the NAO and low-frequency climate variability modulate the seasonal transition from shear- to CAPE-dominated tornadogenesis

Weather and Climate Extremes
The climatology of severe convective storms is well documented in the United States, but the large-scale atmospheric drivers of European tornadoes remain less well understood.
Matthieu Lacroix, Flavio T. Couto, Yanni Gunnell   +2 more
doaj   +1 more source

Structural fluctuations of the Arctic Oscillation tied to the Atlantic Multidecadal Oscillation

npj Climate and Atmospheric Science
Abstract The Arctic Oscillation (AO) has been observed to undergo distinct decadal structural fluctuations that significantly influence regional weather and climate. Understanding the drivers and mechanisms behind the AO’s spatial nonstationarity is critical for improving climate predictions related to the AO.
Hainan Gong, Kangjie Ma, Bo Liu, Judah Cohen, Lin Wang   +4 more
openaire   +2 more sources

Impact of Atlantic multidecadal oscillations on India/Sahel rainfall and Atlantic hurricanes

Geophysical Research Letters, 2006
Prominent multidecadal fluctuations of India summer rainfall, Sahel summer rainfall, and Atlantic Hurricane activity have been observed during the 20th century. Understanding their mechanism(s) will have enormous social and economic implications. We first use statistical analyses to show that these climate phenomena are coherently linked.
Rong Zhang, Thomas L. Delworth
openaire   +1 more source

Multidecadal change of winter cyclonic activity in the Mediterranean associated with AMO and PDO

Terrestrial, Atmospheric and Oceanic Sciences, 2017
The paper is devoted to analysis of the cold half-year (October to March) frequency of cyclones in the Mediterranean-Black Sea region associated with the global processes in the ocean-atmosphere system - the Pacific Decadal Oscillation (PDO) and Atlantic
Veronika Nikolaevna Maslova, Elena Nikolaevna Voskresenskaya, Andrey Sergeevich Lubkov   +2 more
doaj   +1 more source

Decadal variability modulates ENSO effects on wildfire weather in North America

Environmental Research: Climate
North American wildfires are growing in frequency, extent, and intensity in recent decades, threatening ecosystems, human health, and infrastructure. While long-term trends are driven by anthropogenic warming, internal modes of oceanic variability can ...
Yongxiao Liang, Bin Yu, Yelin Jiang, Elizaveta Malinina   +3 more
doaj   +1 more source

Seasonal predictability of the winter NAO from north Atlantic sea surface temperatures [PDF]

, 2002
[1] We examine the seasonal predictability of the winter (December-January-February) North Atlantic Oscillation (NAO) from lagged north Atlantic sea surface temperatures (SSTs) for the period 1950/1-2000/1. We identify two lagged modes of SST variability
Saunders, MA, Qian, BD
core  

Caribbean coral tracks Atlantic Multidecadal Oscillation and past hurricane activity

, 2008
It is highly debated whether global warming contributed to the strong hurricane activity observed during the last decade. The crux of the recent debate is the limited length of the reliable instrumental record that exacerbates the detection of possible ...
Hetzinger, S., Latif, Mojib, Keenlyside, N., Zinke, J., Latif, M., Dullo, Wolf-Christian, Pfeiffer, M., Hetzinger, Steffen, Pfeiffer, Miriam, Dullo, W.-C., Zinke, Jens, Dullo, W., Keenlyside, Noel   +12 more
core   +1 more source

Increased persistence of warm and wet winter weather in recent decades in north-western Europe

Communications Earth & Environment
Changes in weather persistence have important implications for flood risk and regional climate resilience. In recent decades, the winter North Atlantic Oscillation index has shown a sustained shift toward more strongly positive values, exceeding the ...
Barend Spanjers, Eric Beutner, Dim Coumou, Julia Schaumburg   +3 more
doaj   +1 more source

An Ocean Memory Perspective: Disentangling Atmospheric Control of Decadal Variability in the North Atlantic Ocean

Geophysical Research Letters
An ocean memory framework is proposed to reveal the atmosphere's influence on ocean temperatures. Anomalous atmospheric forcing alters the ocean state through two mechanisms: short‐term, local effects involving air−sea heat fluxes and Ekman circulation ...
Hemant Khatri, Richard G. Williams, Tim Woollings, Doug M. Smith   +3 more
doaj   +1 more source

The Atlantic Multidecadal Oscillation in models and observations

, 2010
We use a simplified model of the North Atlantic ocean to study the Atlantic Multidecadal Oscillation (AMO), which is a low-frequency variation found in sea surface temperatures (SST) over the North Atlantic ocean. A mechanism for the AMO has previously been described; here we study the excitation of the variability when atmospheric noise is included in
openaire   +2 more sources