Modelling population retention in Australia’s Northern Territory – how do current forms of migration contribute to population turnover and retention?     

James Thurmer  D. Carson  A. Taylor 《The Australian geographer》2019,50(4):435-452

ABSTRACT

In the past, population growth in Australia's Northern Territory, as in other peripheral parts of high-income countries, has been driven by internal labour migration and migration from outside of Australia. These have been contributing to the high population turnover experienced in peripheral areas. Since 2010, the Northern Territory has experienced low (and even negative) population growth, and public policy is currently focused on migration as a lever to reverse this trend. However, the extent to which the characteristics of migrants influence the potential for longer-term population growth is poorly understood. This paper uses a new method to analyse the contributions of various types of migrants to both population turnover and retention. Two major sets of findings emerge: First, the significance of separating newer in-migrants from longer-term residents when analysing migration patterns; and secondly, the contribution of age, gender, Indigenous status, international origin, wages and industry of employment to the Northern Territory's population turnover. The research suggests that current forms of migration favour people who are likely to stay for only short periods, and have high wage demands. The main policy inference is that long-term population growth will likely not eventuate unless new forms of migration can be stimulated.  相似文献   

On the capsize performance of a discus buoy in deep sea breakers     

R.M. Carson   《Ocean Engineering》1982,9(5):501-514

The mode of capsize of a discus buoy in breaking waves is discussed. The results of model tests are given; these show that a judicious choice of mooring design can substantially reduce the chance of capsize. A comparison is made with the performance of the buoy on station.  相似文献   

Projecting twenty-first century regional sea-level changes   总被引：2，自引：0，他引：2  

A. B. A. Slangen  M. Carson  C. A. Katsman  R. S. W. van de Wal  A. Köhl  L. L. A. Vermeersen  D. Stammer 《Climatic change》2014,124(1-2):317-332

We present regional sea-level projections and associated uncertainty estimates for the end of the 21 ^st century. We show regional projections of sea-level change resulting from changing ocean circulation, increased heat uptake and atmospheric pressure in CMIP5 climate models. These are combined with model- and observation-based regional contributions of land ice, groundwater depletion and glacial isostatic adjustment, including gravitational effects due to mass redistribution. A moderate and a warmer climate change scenario are considered, yielding a global mean sea-level rise of 0.54 ±0.19 m and 0.71 ±0.28 m respectively (mean ±1σ). Regionally however, changes reach up to 30 % higher in coastal regions along the North Atlantic Ocean and along the Antarctic Circumpolar Current, and up to 20 % higher in the subtropical and equatorial regions, confirming patterns found in previous studies. Only 50 % of the global mean value is projected for the subpolar North Atlantic Ocean, the Arctic Ocean and off the western Antarctic coast. Uncertainty estimates for each component demonstrate that the land ice contribution dominates the total uncertainty.  相似文献   

The 2dF-SDSS LRG and QSO (2SLAQ) Luminous Red Galaxy Survey     

Russell Cannon  Michael Drinkwater  Alastair Edge  Daniel Eisenstein  Robert Nichol  Phillip Outram  Kevin Pimbblet  Roberto De Propris  Isaac Roseboom  David Wake  Paul Allen  Joss Bland-Hawthorn  Terry Bridges  Daniel Carson  Kuenley Chiu  Matthew Colless  Warrick Couch  Scott Croom  Simon Driver  Stephen Fine  Paul Hewett  Jon Loveday  Nicholas Ross  Elaine M. Sadler  Tom Shanks  Robert Sharp  J. Allyn Smith  Chris Stoughton  Peter Weilbacher  Robert J. Brunner  Avery Meiksin  Donald P. Schneider 《Monthly notices of the Royal Astronomical Society》2006,372(1):425-442

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Coastal sea level changes,observed and projected during the 20th and 21st century     

M. Carson  A. Köhl  D. Stammer  A. B. A. Slangen  C. A. Katsman  R. S. W. van de Wal  J. Church  N. White 《Climatic change》2016,134(1-2):269-281

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Geocomputation: a practical primer,by Chris Brunsdon and Alex Singleton,London, SAGE Publications, 2015, 392 pp., US$52.00, ISBN 9781446272930 (paperback), ISBN 9781446272923 (hardcover)     

Carson J. Q. Farmer 《International journal of geographical information science》2016,30(4):819-821

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Neutron background in large-scale xenon detectors for dark matter searches     

M. J. Carson  J. C. Davies  E. Daw  R. J. Hollingworth  V. A. Kudryavtsev  T. B. Lawson  P. K. Lightfoot  J. E. McMillan  B. Morgan  S. M. Paling  M. Robinson  N. J. C. Spooner  D. R. Tovey 《Astroparticle Physics》2004,21(6):667-687

Simulations of the neutron background for future large-scale particle dark matter detectors are presented. Neutrons were generated in rock and detector elements via spontaneous fission and (α,n) reactions, and by cosmic-ray muons. The simulation techniques and results are discussed in the context of the expected sensitivity of a generic liquid xenon dark matter detector. Methods of neutron background suppression are investigated. A sensitivity of 10⁻⁹–10⁻¹⁰ pb to WIMP-nucleon interactions can be achieved by a tonne-scale detector.  相似文献   

The NAIAD experiment for WIMP searches at Boulby mine and recent results     

B. Ahmed  G. J. Alner  H. Araujo  J. C. Barton  A. Bewick  M. J. Carson  D. Davidge  J. V. Dawson  T. Gamble  S. P. Hart  R. Hollingworth  A. S. Howard  W. G. Jones  M. K. Joshi  V. A. Kudryavtsev  T. B. Lawson  V. Lebedenko  M. J. Lehner  J. D. Lewin  P. K. Lightfoot  I. Liubarsky  R. Lüscher  J. E. McMillan  B. Morgan  G. Nicklin  S. M. Paling  R. M. Preece  J. J. Quenby  J. W. Roberts  M. Robinson  N. J. T. Smith  P. F. Smith  N. J. C. Spooner  T. J. Sumner  D. R. Tovey 《Astroparticle Physics》2003,19(6):691-702

The NAIAD experiment (NaI Advanced Detector) for weakly interacting massive particle (WIMP) dark matter searches at Boulby mine (UK) is described. The detector consists of an array of encapsulated and unencapsulated NaI(Tl) crystals with high light yield. Six crystals are collecting data at present. Data accumulated by four of them (10.6 kg × year exposure) have been used to set upper limits on the WIMP–nucleon spin-independent and WIMP–proton spin-dependent cross-sections. Pulse shape analysis has been applied to discriminate between nuclear recoils, as may be caused by WIMP interactions, and electron recoils due to gamma background. Various calibrations of crystals are presented.  相似文献   

Quaternary landscape change and modern process in western North America     

Jeffrey S. Munroe  Guest editor  Benjamin J.C. Laabs  Guest editor  Eric C. Carson  Guest editor 《Geomorphology》2006,75(3-4):281

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Local provenance in rehabilitation of degraded landscapes: a case study from the Hawkesbury–Nepean catchment, Australia     

Shelley Burgin  J Carson  B Maheshwari 《Area》2005,37(3):324-331

Throughout Australia thousands of volunteers are engaged in Landcare projects that should help rehabilitate degraded landscapes. Many of these projects involve tree planting, but their seed is not necessarily of local provenance. Based on a survey of 85 Landcare groups working in the Hawkesbury–Nepean catchment, data were collected about Landcare groups' knowledge of their seed source, understanding of local provenance and the ecosystem in which they were planting trees and the source of funding for their projects. The findings from the study indicate that about one in five (21%) of the groups surveyed that introduced plant material were not aware of local provenance issues. Indirect indications were that a large number of Landcare groups state-wide may be doing more harm than good to the landscape while trying to rehabilitate it. The data also showed that one in seven (13%) of the groups funded by the Australian Government through the Natural Heritage Trust (NHT) had limited awareness of local provenance issues. With millions of dollars being spent on 'works on the ground', it would be prudent to allocate some funds to document and monitor current Landcare activities, so that the environmental outcomes can be quantified and more effective Landcare policies can be developed in the future.  相似文献