Results 61 to 70 of about 72,276 (272)
A Mechanism Involving Solar Ultraviolet Variations for Modulating the Interannual Climatology of the Middle Atmosphere [PDF]
, 1990 In years of low solar activity, free traveling wave modes in the upper stratosphere are dominated by atmospheric normal modes such as the 16-day wave. However, within a 4-year interval centered on the 1980 to 1981 solar maximum, cross-spectral analyses ...
Hood, L. L., Jirikowic, J. L.
core +1 more source
An Analytical Study of Ozone Feedbacks on Kelvin and Rossby–Gravity Waves: Effects on the QBO [PDF]
, 1998 An equatorial beta-plane model of the middle atmosphere is used to analytically examine the effects of radiative cooling and ozone heating on the spatial and temporal evolution of the quasi-biennial oscillation (QBO).
Cordero, Eugene +2 more
core +2 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT This study integrates multidimensional sustainability indicators into a unified assessment approach to evaluate circular strategies in agri‐food industry businesses. This methodological approach is applied to empirically examine the case of the olive oil industry's by‐product valorization.
David Polonio +3 more
wiley +1 more source
Solar Impact on Climate: Modeling the Coupling Between the Middle and the Lower Atmosphere [PDF]
, 2005 Solar variability influences the earth's atmosphere on different time scales. In particular, the impact of the 11-year solar cycle is of interest as it provides the major contribution to natural climate variability.
Langematz, Ulrike, Matthes, Katja
core
Contribution of mixing to upward transport across the tropical tropopause layer (TTL) [PDF]
, 2006 During the second part of the TROCCINOX campaign that took place in Brazil in early 2005, chemical species were measured on-board the high-altitude research aircraft Geophysica (ozone, water vapor, NO, NOy, CH4 and CO) in the altitude range up to 20 km ...
Günther, Gebhard +12 more
core +3 more sources
International Journal of Climatology, EarlyView.The ability to predict climate fluctuations at seasonal timescales offers significant socio‐economic benefits. However, limited understanding of predictability mechanisms and model errors hinders forecast quality. Recent research has improved forecasting systems and data quality.
Gualdi Silvio +12 more
wiley +1 more source
Heavy hydrogen in the stratosphere [PDF]
, 2003 We report measurements of the deuterium content of molecular hydrogen (H2) obtained from a suite of air samples that were collected during a stratospheric balloon flight between 12 and 33 km at 40º N in October 2002. Strong deuterium enrichments of up to
Engel, Andreas +2 more
core +4 more sources
International Journal of Climatology, EarlyView.This study, by examining a typical stratospheric intrusion event that occurred in North China from 30 to 31 July 2021, found that the event led to a sharp increase in near‐surface ozone concentrations by 23 ppbv within 36 h, accounting for 40% of the total observed ozone levels, with localised peaks exceeding 30 ppbv.
Yinghan Sun, Zhicong Yin, Yijia Zhang
wiley +1 more source
Tomographic reconstruction of atmospheric gravity wave parameters from airglow observations [PDF]
Atmospheric Measurement Techniques, 2017 Gravity waves (GWs) play an important role in the dynamics of the mesosphere and lower thermosphere (MLT). Therefore, global observations of GWs in the MLT region are of particular interest.
R. Song +7 more
doaj +1 more source
International Journal of Chemical Kinetics, EarlyView.ABSTRACT The atmospheric chemistry of 1,4‐difluorobutane (CFH2CH2CH2CFH2) was investigated through a kinetic and mechanistic study of the reaction with chlorine (Cl) atoms and hydroxyl (OH) radicals. Using Fourier transform infrared (FTIR) spectroscopy and relative rate methods, the rate constants (k) for the reactions were determined at 298 ± 2 K as k(
Ellen R. Kjaergaard +4 more
wiley +1 more source