Results 41 to 50 of about 9,534 (213)
Global drivers effect in multi-annual variability of runoff
Journal of Hydrology and Hydromechanics, 2014 Changes in runoff parameters are very important for Slovakia, where stream-flow discharges, being supplied by precipitation and groundwater runoff, are preferentially influenced by climatic conditions. Therefore, teleconnections between runoff parameters,
Fendeková Miriam +4 more
doaj +1 more source
Nonstationary Synchronization of Equatorial QBO with SAO in Observations and a Model [PDF]
, 2009 It has often been suggested that the period of the quasi-biennial oscillation (QBO) has a tendency to synchronize with the semiannual oscillation (SAO). Apparently the synchronization is better the higher up the observation extends. Using 45 yr of the 40-
Jiang, Xun +4 more
core +1 more source
Progress in Simulating the Quasi‐Biennial Oscillation in CMIP Models [PDF]
Journal of Geophysical Research: Atmospheres, 2020 AbstractThe quasi‐biennial oscillation (QBO) of the zonal mean zonal wind is the primary mode of variability in the tropical lower stratosphere. The QBO is characterized by alternating easterly westerly shear layers that descend down from ∼10 to 100 hPa.
Jadwiga H. Richter +6 more
openaire +2 more sources
Interpreting SBUV smoothing errors: an example using the quasi-biennial oscillation [PDF]
Atmospheric Measurement Techniques, 2013 The Solar Backscattered Ultraviolet (SBUV) observing system consists of a series of instruments that have been measuring both total ozone and the ozone profile since 1970.
N. A. Kramarova +4 more
doaj +1 more source
A seismic signature of a second dynamo?
, 2010 The Sun is a variable star whose magnetic activity varies most perceptibly on a timescale of approximately 11 years. However, significant variation is also observed on much shorter timescales.
Antia +11 more
core +1 more source
On the relation between activity-related frequency shifts and the sunspot distribution over the solar cycle 23 [PDF]
, 2016 The activity-related variations in the solar acoustic frequencies have been known for 30 years. However, the importance of the different contributions is still not well established.
Avelino, P. P. +4 more
core +2 more sources
The Influence of Wave– and Zonal Mean–Ozone Feedbacks on the Quasi-biennial Oscillation [PDF]
, 2000 The effects of wave and zonal mean ozone heating on the evolution of the quasi-biennial oscillation (QBO) are examined using a two-dimensional mechanistic model of the equatorial stratosphere. The model atmosphere is governed by coupled equations for the
Cordero, Eugene, Nathan, Terrence R.
core +2 more sources
International Journal of Climatology, EarlyView.Over the past 60 years, noticeable changes have been observed in the main hydroclimatological variables, driven by both natural and anthropogenic factors. In the context of climate change, such behaviour may adversely affect the state's economic activities, as well as increase the recurrence of extreme events in the region.
Ronaldo Guilherme Santos Lima +4 more
wiley +1 more source
Earth, Planets and Space, 2018 In this study, we evaluate the El Niño–Southern Oscillation (ENSO) signals in the two dominant temperature diurnal tides, diurnal westward wavenumber 1 (DW1) and diurnal eastward wavenumber 3 (DE3) on the quasi-biennial oscillation (QBO) scale (18–34 ...
Yang-Yi Sun +4 more
doaj +1 more source
An opportunity index to anticipate when subseasonal predictions are useful
Quarterly Journal of the Royal Meteorological Society, EarlyView.Simultaneously active subseasonal windows of forecast opportunity can be combined into a single opportunity index, which can be used operationally to anticipate enhanced or reduced subseasonal prediction skill. For predictions of temperature anomalies in Switzerland during summer—a region and season with particularly low predictability—skill can nearly
Dominik Büeler +4 more
wiley +1 more source