Results 11 to 20 of about 24,209 (300)

Quantifying Causal Pathways of Teleconnections [PDF]

open access: yesBulletin of the American Meteorological Society, 2021
Abstract Teleconnections are sources of predictability for regional weather and climate, but the relative contributions of different teleconnections to regional anomalies are usually not understood. While physical knowledge about the involved mechanisms is often available, how to quantify a particular causal pathway from data are usually unclear. Here,
Kretschmer, M.   +6 more
openaire   +1 more source

Possible Linkages of Hydrological Variables to Ocean–Atmosphere Signals and Sunspot Activity in the Upstream Yangtze River Basin

open access: yesAtmosphere, 2021
Profiling the hydrological response of watershed precipitation and streamflow to large-scale circulation patterns and astronomical factors provides novel information into the scientific management and prediction of regional water resources.
Ruting Yang, Bing Xing
doaj   +1 more source

Does the El Niño-Southern Oscillation Affect the Combined Impact of the Atlantic Multidecadal Oscillation and Pacific Decadal Oscillation on the Precipitation and Surface Air Temperature Variability over South America?

open access: yesAtmosphere, 2022
Previous studies have shown that the Atlantic Multidecadal Oscillation (AMO) and Pacific Decadal Oscillation (PDO) have combined effects on the precipitation (PRP) variability over South America.
Mary T. Kayano   +6 more
doaj   +1 more source

El Niño-Southern Oscillation and Indian Ocean Dipole Modes: Their Effects on South American Rainfall during Austral Spring

open access: yesAtmosphere, 2021
This paper examines the effects of the tropical Pacific Ocean (TPO) and Indian Ocean Dipole (IOD) modes in the interannual variations of austral spring rainfall over South America (SA). The TPO mode refers to the El Niño-Southern Oscillation (ENSO).
Mary T. Kayano   +5 more
doaj   +1 more source

Troubles with teleconnections [PDF]

open access: yes, 2021
<p>Rotated principal component analysis (RPCA) is a commonly used tool to detect modes of low-frequency atmospheric circulation variability, also referred to as teleconnections. Teleconnections manifest themselves as distant areas of high negative or positive correlations in sea level pressure, geopotential height, or another variable ...
Radan Huth   +3 more
openaire   +1 more source

Who Learns Better Bayesian Network Structures: Accuracy and Speed of Structure Learning Algorithms [PDF]

open access: yes, 2019
Three classes of algorithms to learn the structure of Bayesian networks from data are common in the literature: constraint-based algorithms, which use conditional independence tests to learn the dependence structure of the data; score-based algorithms ...
Graafland, Catharina Elisabeth   +2 more
core   +2 more sources

The role of the basic state in the ENSO-monsoon relationship and implications for predictability [PDF]

open access: yes, 2005
The impact of systematic model errors on a coupled simulation of the Asian Summer monsoon and its interannual variability is studied. Although the mean monsoon climate is reasonably well captured, systematic errors in the equatorial Pacific mean that the
A. G. Turner   +39 more
core   +1 more source

Identifying causal gateways and mediators in complex spatio-temporal systems [PDF]

open access: yes, 2015
J.R. received support by the German National Academic Foundation (Studienstiftung), a Humboldt University Postdoctoral Fellowship, and the German Federal Ministry of Science and Education (Young Investigators Group CoSy-CC2, grant no. 01LN1306A).
Donges, Jonathan F   +9 more
core   +5 more sources

WCD Ideas: Teleconnections through weather rather than stationary waves [PDF]

open access: yesWeather and Climate Dynamics
Conventionally, teleconnections in the atmosphere are described by correlations between monthly mean fields. These correlations are supposedly caused by stationary Rossby waves.
C. Spensberger, C. Spensberger
doaj   +1 more source

How to Recognize a True Mode of Atmospheric Circulation Variability

open access: yesEarth and Space Science, 2021
It has been demonstrated several times that when principal component analysis (PCA) is used for detection of modes of atmospheric circulation variability (teleconnections), principal components must be rotated.
Radan Huth, Romana Beranová
doaj   +1 more source

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