Publications matching your search query
Results 1 to 25 of 29
Photo-identifications of Antarctic blue whales (Balaenoptera musculus intermedia) collected from 2003/2004 to 2018/2019 were used in a capture-recapture analysis to estimate abundance and population growth rate for the circumpolar Antarctic. Two capture-recapture models, POPAN and Pradel…
Stratosphere–troposphere exchange can be considered globally within the framework of the atmosphere's general circulation as the transfer of air masses through the tropopause with ascending (descending) flows in the tropics (extratropical latitudes).
Stratosphere-to-troposphere transport (STT) provides an important … natural source of ozone to the upper troposphere, but the characteristics of … STT events in the Southern Hemisphere extratropics and their contribution to … the regional tropospheric ozone budget remain poorly constrained. Here…
The upper troposphere and lower stratosphere (UTLS) is a highly coupled region of the atmosphere where radiation, dynamics, clouds and chemical processes interact on a wide variety of spatial and temporal scales. We use a suite of instruments at Davis, Antarctica (69S, 78E)…
The upper troposphere and lower stratosphere (UTLS) is a highly coupled region of the atmosphere where radiation, dynamics, clouds and chemical processes interact on a wide variety of spatial and temporal scales. We use a suite of instruments at Davis, Antarctica (69S, 78E)…
The composition of the stratosphere is driven by transport, temperatures and processes in the tropical tropopause layer – this has implications for ozone, radiation, and surface climate. The properties of the tropical tropopause layer have changed in recent decades, e.g.
The upper troposphere and lower stratosphere (UTLS) is a highly coupled region of the atmosphere where radiation, dynamics, clouds and chemical processes interact on a wide variety of spatial and temporal scales. We use a suite of instruments at Davis, Antarctica (69S, 78E)…
Ozone in the troposphere has four important roles. Tropospheric ozone is a greenhouse gas…
We compare thermal tropopause climatology in Arctic and Antarctic by NCEP–NCAR Reanalysis-1 data over the 1979–2008 period. The role of the troposphere and stratosphere in tropopause anomaly distribution is examined using corresponding temperature and geopotential height field.
Arctic and Antarctic tropopause is formed under extreme climate … conditions, both in troposphere and stratosphere. In the troposphere, distribution of orography, ice sheet and stationary atmospheric centres of … action is distinct.
Analysis of the quasi-stationary planetary wave (QSW) influence on total … ozone column (TOC) distribution over 60°N and 60°S latitudes is … presented. TOMS version 8 total ozone data for years 1979-2003 were … used to compare the vortex-edge TOC distribution in both hemispheres.
Ozone hole over Antarctica exists almost three decades each austral spring.
The zonal anomalies data in total ozone and thermal tropopause height … shows that ozone depletion during austral spring has a strong influence on … the height and sharpness of the tropopause over West Antarctica.
Decadal variations of the quasi-stationary wave amplitude and zonal structure are analyzed using the TOMS data. Seasonal dependence of total ozone content (TOC) is considered.
Analysis of zonal anomalies in total ozone and thermal tropopause height shows … that ozone depletion during austral spring has a strong influence on the height … and sharpness of the tropopause over West Antarctica. The seasonal change of tropopause … peak height occurs between 9 km…
Between January and April over six consecutive years (2000 to 2005) photographs of the … dorsal fin and lateral bodies of pygmy blue whales (Balaenoptera musculus brevicauda) were … collected at the Perth Canyon, Western Australia.