Results 31 to 40 of about 9,484 (178)
An Examination of Anomalously Low Column Ozone in the Southern Hemisphere Midlatitudes During 1997 [PDF]
, 2002 [1] Observations from both ground-based and satellite instruments show record low column ozone abundance between 20°S and 40°S during 1997. The 1997 monthly averaged column ozone from the Total Ozone Mapping Spectrometer (TOMS) is up to 25 Dobson units ...
Cordero, Eugene C., Nathan, Terrence R.
core +2 more sources
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
Quasi-biennial oscillation: laboratory experiments
Comptes Rendus. PhysiqueThe quasi-biennial oscillation (QBO) is an oscillation of the wind in the equatorial stratosphere. This wind is a mean flow induced by atmospheric waves, including internal gravity waves, which explain that the period (28 month) is not linked to any ...
Semin, Benoît, Pétrelis, François
doaj +1 more source
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