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Echosounder data are widely collected and employed to address multitude scientific questions, from characterizing pelagic marine ecosystems, to investigating the behaviour and dynamics of marine organisms, and estimating the abundance and biomass of marine resources.
A decade of radiosonde observations of wind and temperature in the troposphere and lower stratosphere have made it possible to compile a climatology of low-frequency gravity waves above Davis, Antarctica (69S, 78E). Wave characteristics, extracted using wavelet analysis [Zink and Vincent, 2001]…
A decade of radiosonde observations of wind and temperature in the troposphere and lower … stratosphere have made it possible to compile a climatology of low-frequency gravity waves … above Davis, Antarctica (69°S, 78°E). Wave characteristics, extracted using wavelet … analysis [Zink and Vincent…
A large-scale interdisciplinary survey of the waters between 30-80°E will take place between … January and March 2006.
A function that approximates atmospheric tidal behavior in the polar regions is … described.
The existence of Polar Mesosphere Summer Echoes (PMSE) in the Southern Hemisphere … (SH) has recently been confirmed using HF radar (Ogawa et al., 2002), MST … radar (Morris et al., 2004), and a Dynasonde (Jarvis et al., 2005) following earlier … observations using MST radar (Woodman et al., 1999).
The international cooperation that makes Antarctica a continent for science has enabled … observations of the Antarctic middle atmosphere that are not possible anywhere else on … Earth. Atmospheric radars operated by Australia (Davis), Japan (Syowa), the UK and the … USA (Rothera)…
The dominant generator of the atmospheric electric circuit is meteorological activity in the … form of thunderstorms and electrified clouds, while the flow of the current within the circuit is … principally controlled by atmospheric ionisation by cosmic rays.
Measuring the geo-electric field becomes important in understanding the global electric circuit and how it is affected by other phenomena. It is also useful in assessing how the global electric circuit variations can affect climate.