Brewer-dobson circulation tropospheric ozone
Webpicture of an overturning circulation is the addition of quasi-horizontal mixing due to mid-latitude planetary waves breaking. In the tropics the strength of the Brewer–Dobson circulation sets the rate at which air is transported from the tropical-tropopause-layer into the stratosphere. Consequently, for example, it almost completely WebOct 1, 2014 · The stratospheric circulation affects tropospheric climate and variability across many time scales, through coupling to the chemistry and transport of ozone (e.g., Thompson et al. 2011) and water vapor (e.g., Solomon et al. 2010) on decadal time scales, to dynamical interactions with the jet stream on intraseasonal time scales (e.g., Baldwin ...
Brewer-dobson circulation tropospheric ozone
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WebJul 17, 2024 · At the same time the Brewer Dobson Circulation (BDC)’s tropical upwelling system is a stratospheric phenomenon which predominantly involves the lower tropical stratospheric vertical ozone ... WebNov 7, 2006 · Through poleward transport and downwelling over the winter hemisphere, the Brewer-Dobson circulation controls how cold Arctic temperature becomes during …
WebAbstract. Ground-level observations, reanalyzed meteorological fields and a 3-D global chemical and transport model (GEOS-Chem) were applied in this study to investigate ozone (O3) pollution events (OPEs) in North China (36.5–40.5∘ N, 114.5–119.5∘ E) during 2014–2024. Ozone pollution days (OPDs) were defined as days with maximum daily … WebOct 16, 2015 · We show that CH4 emission increases strengthen westerly winds in the Northern Hemisphere midlatitudes, accelerate the Brewer–Dobson (BD) circulation, and cause an increase in the mass flux across the tropopause. ... L. W., and Coauthors, 2003: A global simulation of tropospheric ozone and related tracers: Description and evaluation …
WebJan 6, 2024 · covery of the Brewer–Dobson circulation, in which tropo- spheric air passes into the stratosphere in the upper arm of the ascending Hadley circulation at low latitudes and WebMar 4, 2024 · It has recently been recognized that, in addition to greenhouse gases, anthropogenic emissions of ozone‐depleting substances (ODS) can induce long‐term trends in the Brewer‐Dobson circulation (BDC). Several studies have shown that a substantial fraction of the residual circulation acceleration over the last decades of the twentieth …
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WebApr 10, 2024 · Iodine has the potential to cause stratospheric ozone depletion. Small satellites (<10 kg) in low Earth orbit require electric propulsion to prolong their time in orbit, and there is strong interest in replacing the rare gas propellant (Xe or Kr) with I 2.Here we estimate the potential impact of thermosphere iodine injection from such satellites on … floral diamond painting kitsWebSep 1, 2024 · The stratospheric contribution to tropospheric ozone has long been a topic of much debate over the past few decades. ... STT is governed by the Brewer–Dobson circulation [10 ... Figure 1(b) depicted the development and intensification of air circulation. The strong anticyclone centre clearly corresponded to the South Asian High, … great sci fi authorsWebozone as ODSs decrease is not expected to be a simple rever-sal of historical trends (e.g. Jonsson et al., 2009; Waugh et al., 2009). The projections of future ozone evolution contained ... due to a strengthening Brewer-Dobson circulation, and in the tropical upper stratosphere, where rising greenhouse gas great sci fi audio bookshttp://www.yndxxb.ynu.edu.cn/yndxxbzrkxb/cn/article/doi/10.7540/j.ynu.20240518 great scientists of historyBrewer–Dobson circulation refers to the global atmospheric circulation pattern of tropical tropospheric air rising into the stratosphere and then moving poleward as it descends. The basics of the circulation were first proposed by Gordon Dobson and Alan Brewer. The term "Brewer–Dobson circulation" was first introduced in 1963. This circulation pattern explains observations of ozone and water vapor di… great sci fi authors frank herbert booksWebThis makes the AIRS ozone ideal for studies of stratospheric-tropospheric exchange during severe convection events and the global transport of ozone through the Brewer-Dobson circulation. AIRS ozone is visible during polar night allowing a good view of formation and decline of the annual polar ozone hole. floral dish italy t26WebBased on data from 16 chemistry-climate models (CCMs) and separate experimental results using a state-of-the-art CCM, the trends in the Brewer–Dobson circulation (BDC) during the second half of the 20th century (1960–2000) and the first half of the 21st century (2001–2050) are examined. From the ensemble mean of the CCMs, the … great sci fi authors larry niven