Search

Latest publications

Results 2626 to 2650 of 8726

Observations of Antarctic fast-ice thickness AGU (Fall 2007) Meeting, 2007 (Ref: 13237)
Authors:
Category 3: Abstract

Fast ice makes up about 10 % by area (or 14 - 20 % by volume) of the total … Antarctic pack. Its growth is largely determined by thermodynamics processes, which makes it a valuable tool to monitor changes in the polar climate system. Time series of fast-ice properties…

Data for bioregionalisation of the Southern Ocean CCAMLR Workshop on Bioregionalisation. Brussels, Belgium, August 2007, 2007 (Ref: 13117)
Category 3: Conference paper

This reference document provides information on physical and biological data layers that … have been collated in advance of the 2007 CCAMLR Workshop on Bioregionalisation. This is … not an exhaustive list, as additional data may be made available by participants during the … workshop itself.

Interannual variability in Southern Hemisphere ozone Cape Grim Baseline Air Pollution Station Annual Science Meeting 2007, Aspendale, Victoria, Dec 6-7 2007, 2007 (Ref: 13227)
Category 3: Verbal presentation

Ozone climatologies are presented for a number of locations in the Australian region, making use of … both total ozone and ozone profile data, as measured by the Bureau of Meteorology’s Dobson and … ozonesonde networks. For mid-latitude sites (Melbourne and Macquarie Island)…

Ozone in the lower troposphere at high southern latitudes Cape Grim Baseline Air Pollution Station, Annual Science Meeting 2007, Aspendale, Victoria, Dec 6-7, 2007, 2007 (Ref: 13226)
Category 3: Poster

Understanding and characterising the variability of ozone in the lower atmosphere is a key aspect of … regional and global climate assessment. Tropospheric ozone influences climate by absorbing outgoing … longwave terrestrial radiation, thereby acting as a greenhouse gas…

SIPEX "Sea Ice Physics and Ecosystems EXperiment" - an overview of the science carried out on V1/2007 Antarctic Climate and Ecosystems CRC Symposium, Hobart, 2007, 2007 (Ref: 13178)
Category 3: Conference paper

In September 2007, a multi-disciplinary sea-ice voyage, jointly organised by the Australian Government Antarctic Division and the Antarctic Climate and Ecosystems Cooperative Research Centre, sailed from Hobart. The focus of the Sea Ice Physics and Ecosystems Experiment (SIPEX)…

The 8200 B.P. climate event in the Southern Hemisphere Antarctic Climate and Ecosystems CRC Symposium, Hobart, 2007, 2007 (Ref: 13162)
Category 3: Conference paper

The event that occurred approximately 8200 years ago is the largest excursion in climate since the beginning of the Holocene. In this event we observe the climatic response to a perturbation which provides a probe with which to investigate the stability of interglacial climate.

Fast Ice Distribution in Adélie Land, East Antarctica: International Variability and Implications for Emperor Penguins (Aptenodytes forsteri) Antarctic Climate and Ecosystems CRC Symposium, Hobart, 2007, 2007 (Ref: 13161)
Category 3: Conference paper

Antarctic fast ice is of key climatic and ecological importance, yet its distribution and variability are poorly understood (compared to pack ice). In this joint Australian-French study…

Crystallography of the Amery Ice Shelf - Marine and Meteoric Ice Observations Antarctic Climate and Ecosystems CRC Symposium, Hobart, 2007, 2007 (Ref: 13158)
Category 3: Conference paper

Hot water drilling of the Amery Ice Shelf conducted as a component of the AMISOR (Amery Ice Shelf Ocean Research) project to enable access the underlying ocean cavity has allowed limited retrieval of ice cores using a hot water coring barrel.

Investigation of East Antarctica sea-ice motion Antarctic Climate and Ecosystems CRC Symposium, Hobart, 2007, 2007 (Ref: 13159)
Category 3: Conference paper

Information of sea-ice drift is crucial to understand the East Antarctic climate system, and knowledge of sea-ice dynamics is needed to fully explore the effects of cryospheric changes on the ecosystems within the Antarctic pack-ice zone. Satellite-derived sea-ice data cover the Southern Ocean.

High Resolution Ice Core Records of Cosmogenic 10Be from Antarctica and Greenland for Examination of Past Solar Variability Antarctic Climate and Ecosystems CRC Symposium, Hobart, 2007, 2007 (Ref: 13156)
Category 3: Conference paper

Quantifying the contribution of solar variability to past and present climate change has been an important and controversial aspect of climate research. 10Be records from polar ice have played a key role in extending solar activity reconstructions beyond the period of direct observations of the sun.

Experiments with two calibration neutron monitors Proceedings of the 30th International Cosmic Ray conference, Mérida, Mexico, 2007 (Ref: 13189)
Category 3: Abstract

Abstract: Two identical calibration neutron monitors were completed in September 2002. They are … designed to provide an intercalibration between the ¡Ö 50 neutron monitors around the world, so that … rigidity spectra can be calculated from them.

Latitudinal distribution of galactic cosmic ray density and its effect on the CIR-driven modulations of density and density gradient measured by the Muon detector network Proceedings of the 30th International Cosmic Ray conference, Mérida, Mexico, 2007 (Ref: 13188)
Category 3: Abstract

We investigated the unidirectional fractional density gradient in GSE-z (GzU) of Galactic Cosmic Ray (GCR) by using the data obtained by the Muon detector network. The analysis period is from 1994 to 2005. We found that the yearly averaged GzU show temporal variations.

Determination of ICME geometry and orientation from ground based observations of galactic cosmic rays Proceedings of the 30th International Cosmic Ray Conference, Mérida, Mexico, 2007 (Ref: 13186)
Category 3: Abstract

We have developed a method for determining ICME (Interplanetary coronal mass ejection) geometry from galactic cosmic ray data recorded by the ground-based muon detector network. The … cosmic ray density depression inside the ICME, which is the cause of a Forbush decrease…

Sidereal anisotrophy of sub-TeV galactic cosmic ray intensity observed with a two-hemisphere network of underground muon detectors in Japan and Australia Proceedings of the 30th International Cosmic Ray conference, Mérida, Mexico, 2007 (Ref: 13190)
Category 3: Abstract

This paper presents the average sidereal anisotropy (SA) of sub-TeV galactic cosmic ray intensity observed with a two-hemisphere network (THN) of underground muon detectors over 15 years. The average SA confirms the conclusions derived from the initial 5-year data by THN [1][2]…

on