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The major sudden stratospheric warming (SSW) events strongly influence the mean structure of the entire atmosphere, from the troposphere to the thermosphere. These events disrupt the compositional and thermal structure of the mesosphere and…

空间物理 · 物理学 2025-07-01 Akash Kumar , MV Sunil Krishna , Alok K Ranjan

Carbon dioxide (CO2), an important trace species that is gradually increasing in the atmosphere due to anthropogenic activities, causes enhanced warming in the lower atmosphere. The increased concentration of CO2 in the upper atmosphere…

空间物理 · 物理学 2024-12-03 Akash Kumar , MV Sunil Krishna , Alok K Ranjan

This study investigates the effect of stratospheric sudden warmings (SSWs) on planetary wave (PW) activity in the mesosphere-lower thermosphere (MLT). PW activity near 95 km is derived from meteor wind data using a chain of eight SuperDARN…

空间物理 · 物理学 2016-11-29 N. H. Stray , Y. J. Orsolini , P. J. Espy , V. Limpasuvan , R. E. Hibbins

The level of quasi-stationary planetary wave (QSW) activity in the Antarctic winter stratosphere provides insights into the likely behavior of the ozone hole in the following spring months. Observation of an anomalously large amplitude of…

This paper reports observations of regional and global upper stratosphere temperature (UST) and surface temperature, as well as various climate drivers including greenhouse gases (GHGs), ozone, aerosols, solar variability, snow cover…

大气与海洋物理 · 物理学 2025-01-09 Qing-Bin Lu

Molecular oxygen in our atmosphere has increased from less than a part per million in the Archean Eon, to a fraction of a percent in the Proterozoic, and finally to modern levels during the Phanerozoic. The ozone layer formed with the early…

地球与行星天体物理 · 物理学 2023-07-25 Russell Deitrick , Colin Goldblatt

The impact of a rarest solar wind phenomenon [disappearing solar wind (DSW) event during 26-28 December 2022] on the Martian nightside ionosphere is investigated, for the first time, using MAVEN datasets. During an extremely low solar wind…

空间物理 · 物理学 2024-04-12 L. Ram , D. Rout , S. Sarkhel

Determining the habitability and interpreting future atmospheric observations of exoplanets requires understanding the atmospheric dynamics and chemistry from a 3-D perspective. Previous studies have shown significant spatial variability in…

地球与行星天体物理 · 物理学 2023-11-17 Marrick Braam , Paul I. Palmer , Leen Decin , Maureen Cohen , Nathan J. Mayne

Nine years of mesospheric wind data from two meteor radars at 52{\deg}N latitude were analyzed to investigate planetary waves (PWs) and tides by estimating their zonal wavenumber through longitudinal phase differences. Our results reveal…

空间物理 · 物理学 2024-12-24 Maosheng He , Jeffrey M. Forbes , Gunter Stober , Christoph Jacobi , Guozhu Li , Libo Liu , Jiyao Xu

Several recent studies have linked the exceptional North Atlantic and Eurasian atmospheric evolution during late February and March 2018 to the Sudden Stratospheric Warming (SSW) that took place a few weeks earlier. February 2018 was…

Studies on stratospheric ozone have attracted much attention due to its serious impacts on climate changes and its important role as a tracer of Earth's global circulation. Tropospheric ozone as a main atmospheric pollutant damages human…

适应与自组织系统 · 物理学 2021-07-05 Xiaojie Chen , Na Ying , Dean Chen , Yongwen Zhang , Bo Lu , Jingfang Fan , Xiaosong Chen

Studies of vertical and interhemispheric coupling during Sudden Stratospheric Warmings (SSWs) suggest that gravity wave (GW) momentum flux divergence plays a key role in forcing the middle atmosphere, although observational validation of GW…

空间物理 · 物理学 2016-07-05 R. J. deWit , R. E. Hibbins , P. J. Espy , Y. J. Orsolini , V. Limpasuvan , D. E. Kinnison

We have measured the correlation of rates in IceCube with long and short term variations in the South Pole atmosphere. The yearly temperature variation in the middle stratosphere (30-60 hPa) is highly correlated with the high energy muon…

高能天体物理现象 · 物理学 2019-08-13 Serap Tilav , Paolo Desiati , Takao Kuwabara , Dominick Rocco , Florian Rothmaier , Matt Simmons , Henrike Wissing

Observations from the Odin/Sub-Millimetre Radiometer (SMR) instrument have been assimilated into the DIAMOND model (Dynamic Isentropic Assimilation Model for OdiN Data), in order to estimate the chemical ozone (O$_{3}$) loss in the…

空间物理 · 物理学 2017-05-23 Kazutoshi Sagi , Kristell Pérot , Donal Murtagh , Yvan Orsolini

The Antarctic region in which severe ozone depletion has taken place is known as the ozone hole. This region has two basic indicators: the area, where the ozone abundance is low (size), and the quantity of ozone mass deficit (depth). The…

高能物理 - 唯象学 · 物理学 2010-01-19 M. Alvarez Madrigal , J. Perez Peraza , V. M. Velasco

Ground-based spectrometers have been developed to measure the concentration, velocity, and temperature of ozone in the mesosphere and lower thermosphere (MLT) using low-cost satellite television electronics to observe the 11.072 GHz…

天体物理仪器与方法 · 物理学 2015-08-18 O. B. Alam , A. E. E. Rogers

Some of the natural variability in climate is understood to come from changes in the Sun. A key route whereby the Sun may influence surface climate is initiated in the tropical stratosphere by the absorption of solar ultraviolet (UV)…

大气与海洋物理 · 物理学 2016-02-23 W. T. Ball , J. D. Haigh , E. V. Rozanov , A. Kuchar , T. Sukhodolov , F. Tummon , A. V. Shapiro , W. Schmutz

Observed chemical species in the Venusian mesosphere show local-time variabilities. SO2 at the cloud top exhibits two local maxima over local time, H2O at the cloud top is uniformly distributed, and CO in the upper atmosphere shows a…

地球与行星天体物理 · 物理学 2021-12-15 Wencheng D. Shao , Xi Zhang , João Mendonça , Thérèse Encrenaz

Ozone in Earth's atmosphere is known to have a radiative forcing effect on climate. Motivated by geochemical evidence for one or more nearby supernovae about 2.6 million years ago, we have investigated the question of whether a supernova at…

地球与行星天体物理 · 物理学 2020-10-21 Brian C. Thomas , Cody L. Ratterman

This study presents the continuation of the analysis of variations of atmospheric and space weather parameters above Iberian Peninsula along two years near the 24th solar cycle maximum presented in Morozova et al. [2016]. Previously, the…

大气与海洋物理 · 物理学 2020-06-14 Anna L. Morozova , Paulo Ribeiro , Juan Jose Blanco , Tatiana V. Barlyaeva
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