Results 51 to 60 of about 24,209 (300)

The Role of the Indian Ocean Basin-Wide and El Niño–Southern Oscillation Modes in Interannual Rainfall Variability over South America during Austral Summer

Atmosphere, 2021
This paper examines the relative role of the Indian Ocean basin-wide (IOBW) mode and El Niño–Southern Oscillation (ENSO) in the atmospheric circulation and rainfall interannual variations over South America (SA) during southern summer of the 1951‒2016 ...
Mary T. Kayano, Rita V. Andreoli, Wilmar L. Cerón, Rodrigo A. F. Souza   +3 more
doaj   +1 more source

Empirical Orthogonal Teleconnections

Journal of Climate, 2000
Abstract A new variant is proposed for calculating functions empirically and orthogonally from a given space–time dataset. The method is rooted in multiple linear regression and yields solutions that are orthogonal in one direction, either space or time. In normal setup, one searches for that point in space, the base point (predictor), which, by linear
H. M. van den Dool, S. Saha, Å Johansson   +2 more
openaire   +1 more source

On the Temporal Variability of Precipitation in Iraq: Arid‐Wet Years and Extreme Events

International Journal of Climatology, EarlyView.
Daily and monthly precipitation data in Iraq display high seasonal to interdecadal variability, with arid and wet years that have very distinct seasonal cycles. Monthly rainfall is significantly correlated with the Indian Ocean Dipole. Extreme events are identified and classified as belonging to four different weather patterns, allowing to obtain daily
Ali Raheem Al‐Nassar, Josep L. Pelegrí, Pánfilo Masciángioli   +2 more
wiley   +1 more source

Ocean–atmosphere circulation coherences associated with temperature increase in Pakistan

Environmental Research Letters, 2023
In recent decades, temperature variations have significantly affected the ecosystem and human livelihood in Pakistan. The wavelet analysis is employed to identify the associations between regional temperature change and global teleconnections, i.e ...
Azfar Hussain, Ishtiaq Hussain, Shaukat Ali, Waheed Ullah, Abolfazl Rezaei, Shaukat Ali, Safi Ullah, Haider Abbas, Asima Manzoom, Jinxing Zhou, Jianhua Cao   +10 more
doaj   +1 more source

Climate teleconnections modulate global burned area

Nature Communications, 2023
AbstractClimate teleconnections (CT) remotely influence weather conditions in many regions on Earth, entailing changes in primary drivers of fire activity such as vegetation biomass accumulation and moisture. We reveal significant relationships between the main global CTs and burned area that vary across and within continents and biomes according to ...
Cardil, Adrián, Rodrigues, Marcos, Tapia, Mario, Barbero, Renaud, Ramírez, Joaquin, Stoof, Cathelijne, Silva, Carlos Alberto, Mohan, Midhun, De-Miguel, Sergio   +8 more
openaire   +7 more sources

Three Generations of NARCliM: Evaluation of Precipitation, Temperature and Their Extremes Over the CORDEX Australasia Domain

International Journal of Climatology, EarlyView.
The NSW and Australian Regional Climate Modelling Version 2.0 (NARCliM2.0) builds on NARCliM1.0 and 1.5 to deliver improved regional climate simulations. This study provides the first comprehensive evaluation of NARCliM2.0 against its predecessors, assessing individual model skill in reproducing mean and extreme climate.
Fei Ji, Moutassem El Rafei, Giovanni Di Virgilio, Jatin Kala, Jason P. Evans, Julia Andrys, Eugene Tam, Stephen White, Dipayan Choudhury, Rishav Goyal, Carlos Rocha, Yue Li, Matthew L. Riley   +12 more
wiley   +1 more source

Alaskan Ridge Blocking and Associated Winter Cold Conditions Over North America

International Journal of Climatology, EarlyView.
Multi‐decadal (1979–2023) analysis reveals that wintertime reductions in the meridional gradient of potential vorticity (PVy) over the Bering Sea are recurrent but episodic features of North Pacific circulation. These suppressed PVy states consistently co‐occur with amplified Alaskan ridging, weakened mid‐tropospheric westerlies and a downstream warm ...
Varunesh Chandra, James E. Overland, Muyin Wang   +2 more
wiley   +1 more source

Non‐Stationary Dry‐Spell Hazard Probabilities for Spain

International Journal of Climatology, EarlyView.
This study assesses long‐term changes in dry‐spell hazard probabilities across Spain (1961–2024) using a novel non‐stationary extreme value framework applied to daily precipitation records from a dense observational network. Results show that dry‐spell duration and associated return levels are dominantly stationary, with non‐stationary models providing
S. M. Vicente‐Serrano, S. Beguería, A. Royo, A. El Kenawy, M. Franquesa, A. Halifa‐Marin, M. Adell‐Michavila, A. Crespillo, D. Pérez‐Pajuelo, F. Domínguez‐Castro, C. Azorin‐Molina, L. Gimeno, R. Nieto, L. Gimeno‐Sotelo   +13 more
wiley   +1 more source

ENSOMJO teleconnections revised

, 2022
revised version of MJO ENSO teleconnections ...
openaire   +2 more sources

Variability and Changes of the Growing Season Length and Frost Days Number in Russian sub-Arctic

Geography, Environment, Sustainability, 2019
Observational data from the Russian sub-Arctic stations are used to investigate long-term variability of the growing season length (GSL) and the number of frost days (FD) in 1949-2013.
I. I. Zveryaev, A. V. Arkhipkin
doaj   +1 more source