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It is known that planetary waves play important role in the polar … stratospheric vortex breakdown and ozone value increasing in late … Antarctic spring. In this work…
Polar Mesospheric Clouds (PMC) are a ubiquitous wide-spread optical … phenomena of the polar summer mesopause region, and comprise icy … aerosols that form under the influence of large-scale atmospheric ascent … and adiabatic cooling. PMC aerosols are controlled by the thermal…
As revealed by the CALIPSO orbiting lidar, the intense firestorms that occurred … in southern Australia during February 2009 injected a significant plume of … smoke particles into the lower stratosphere. Over the following weeks…
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.
The 15-year set of radar observations of Mesosphere and Lower Thermosphere (MLT) winds obtained from Davis station in Antarctica (69S, 78E) provide an opportunity for studies of interhemispheric coupling. Observations and modelling described by Becker and Fritts [2006]…
During austral spring 2003, mesoscale sea ice drift and deformation off East … Antarctica were investigated using in situ data from a nine-buoy array. Upon deployment, the array comprised an area of about 4000 km2 with a mean ice concentration of 96%.
This paper presents details of techniques for generating … thermal infrared and visible composite images from the … cloud-free portions of temporally closely spaced MODerate resolution … Imaging Spectroradiometer (MODIS) images…
The long-standing mainstay of support for C. T. R. Wilson’s global circuit hypothesis is the similarity … between the diurnal variation of thunderstorm days in universal time and the Carnegie curve of electrical … potential gradient.
Regular measurements of the atmospheric electric field made at Vostok Station (φ=78.451S; … ë=106.871E, elevation 3500 m) in Antarctica demonstrate that extremely intense electric fields … (1000–5000 V/m) can be observed during snow storms.
The Antarctic climate system varies on timescales from orbital, through millennial to sub-annual, and is closely coupled to other parts of the global climate system.
This study was the first to use high-resolution IKONOS imagery to classify vegetation communities on … sub-Antarctic Heard Island. We focused on the use of texture measures, in addition to standard … multispectral information, to improve the classification of sub-Antarctic vegetation communities.
We applied a multivariate statistical modelling technique called boosted regression trees to derive relationships between environmental conditions and the distribution of the adult stage of the cyclopoid copepod Oithona similis in the Southern Ocean.
The Network for the Detection of Mesopause Change (NDMC) is a global program with the mission to promote international cooperation among research groups investigating the mesopause region (80-100km) with the goal of early identification of changing climate signals. From September 01 to October 31…
The Network for the Detection of Mesopause Change (NDMC) is a global program with the mission to promote international cooperation among research groups investigating the mesopause region (80-100 km) with the goal of early identification of changing climate signals.
Kinetic temperature profiles are retrieved from limb-emission radiance measurements of CO2 at 15 and 4.3 um … by the SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) instrument on the TIMED … (Thermosphere Ionosphere Mesosphere Energetics and Dynamics) satellite.
A climatology of hydroxyl (6-2) band temperatures has been derived from 15 consecutive years of scanning … spectrometer measurements at Davis station (68°S, 78°E), Antarctica.
Molecular markers and morphological characters can help infer the colonization history of organisms. A combination of mitochondrial (mt) D-loop DNA sequences, nuclear DNA data, external measurements … and skull characteristics shows that house mice (Mus musculus)…