Results 101 to 110 of about 273,761 (310)

The gyrB gene is a useful phylogenetic marker for exploring the diversity of flavobacterium strains isolated from terrestrial and aquatic habitats in Antarctica [PDF]

, 2011
Within the phylum Bacteroidetes, the gyrB gene, encoding for the B subunit of the DNA gyrase, has been used as phylogenetic marker for several genera closely related to Flavobacterium.
Peeters, Karolien, Willems, Anne
core   +1 more source

Greening the Antarctic [PDF]

Science, 2017
Climate Change![Figure][1] Antarctic moss banks show increased biological activity consistent with the effects of warming temperatures. PHOTO: CARLOS FAIRBAIRN The ecological consequences of climate change in the polar regions are becoming increasingly evident.
openaire   +2 more sources

Using a causal effect network approach to quantify the impact of ENSO teleconnections on summer monsoon precipitation over the Himalayas and key regional circulations

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We quantified the causal effect (CE) of linkages between four monthly climate indices ENSO, SMHP, RWC, and MHC for 1940–2022 with a time lag of one month. The results show CE values from (1) ENSO to SMHP of −0.33$$ -0.33 $$ to −0.44$$ -0.44 $$ (i.e., a one standard deviation (SD) increase in ENSO causes a decrease in SMHP of −0.33$$ -0.33 $$ to −0.44$$
Grzegorz Muszynski, Andrew Orr, Indrani Roy, Giorgia Di Capua, Hamish D. Pritchard, J. Scott Hosking   +5 more
wiley   +1 more source

Effects of heavy metals on bioremediation of diesel by Antarctic microalga Tritostichococcus sp. [PDF]

Polish Polar Research
Hydrocarbon spillage has long been a concern in Antarctica as it can result in detrimental effects on Antarctic biota and ecosystems. Bioremediation, using microorganisms such as microalgae, represents one of the most effective and least damaging methods
Wen Xi Goh, Ruo-Shan Tae, Zheng Syuen Lim, Chiew Yen Wong, Siti Aqlima Ahmad, Yih Yih Kok, Peter Convey   +6 more
doaj   +1 more source

Polar‐low track prediction using machine‐learning methods

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Machine‐learning models are developed to produce reliable and efficient forecasts of polar‐low (PL) trajectories 12 hours ahead. A temporal model (RLSTM) benefiting from the rolling‐forecast strategy, improves overall prediction accuracy and is suitable for quick experimentation, while a spatiotemporal model (PL‐UNet), incorporating both historical and
Ziying Yang, Rune Grand Graversen, Filippo Maria Bianchi, Jiping Liu, Ruibo Lei   +4 more
wiley   +1 more source

Movement of Trace Elements During Residence in the Antarctic Ice: a Laboratory Simulation [PDF]

, 1991
Recent work has determined that differences in the trace element distribution between Antarctic eucrites and non-Antarctic eucrites may be due to weathering during residence in the ice, and samples that demonstrate trace element disturbances do not ...
Strait, Melissa M.
core   +1 more source

How consistently do ensemble prediction systems represent the growth of atmospheric uncertainty?

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Spread‐based diagnostics calculated for 12 ensemble prediction systems are compared to understand the consistency with which they represent atmospheric uncertainty growth. Good correlation between all these systems is found in the extratropics for a lead time range from 48 hr to between 96 hr and 192 hr.
Douglas Wood, Suzanne Gray, John Methven, Mark Rodwell   +3 more
wiley   +1 more source

Flow and retreat of the Late Quaternary Pine Island-Thwaites palaeo-ice stream, West Antarctica [PDF]

, 2010
Multibeam swath bathymetry and sub-bottom profiler data are used to establish constraints on the flow and retreat history of a major palaeo-ice stream that carried the combined discharge from the parts of the West Antarctic Ice Sheet now occupied by the ...
Alastair G. C. Graham, Alley, Anandakrishnan, Anderson, Anderson, Canals, Clark, Claus-Dieter Hillenbrand, Conway, Domack, Dowdeswell, Dowdeswell, Dowdeswell, Dowdeswell, Evans, Evans, Gerhard Kuhn, Graham, Heroy, Holt, Hubbard, Hughes, Jacobs, James A. Smith, Jeffrey Evans, Julian A. Dowdeswell, Karsten Gohl, King, Larter, Larter, Lowe, Lowe, Mosola, Nitsche, Noormets, Nygård, Ottesen, Ottesen, Payne, Pritchard, Pudsey, Rignot, Rignot, Rignot, Rignot, Rignot, Robert D. Larter, Schoof, Scott, Sharpe, Shaw, Shepherd, Shepherd, Shipp, Shipp, Smith, Stokes, Stokes, Stokes, Tara Deen, Thoma, Vaughan, Vaughan, Vaughan, Vaughan, Walker, Weertman, Wellner, Ó Cofaigh, Ó Cofaigh, Ó Cofaigh, Ó Cofaigh   +71 more
core   +1 more source

Enabling Under Ice Glider Operations: A Backseat Driver Approach

Journal of Field Robotics, EarlyView.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang, Benjamin Allsup, Georgios Salavasidis, Stephen Woodward, Adeniyi Adenaya, Mike Smart, Alexis Johnson, Felipe Marques Dos Santos, Jake Ludgate, Daniel Matterson, Alvaro Lorenzo, J. Alexander Brearley, Alexander Brian Phillips   +12 more
wiley   +1 more source

The read-out system of spatial distribution of thermoluminescence in meteorites [PDF]

The thermoluminescence (TL) technique used for dating the terrestrial age of meteorites is based on the TL fading of interior samples. The depth dependence of the TL for Antarctic meteorites with fusion crust is measured. Usually, meteorites are powdered
Ninagawa, K., Takano, Y., Takaoka, N., Wada, T., Yamamoto, I., Yamashita, Y.   +5 more
core   +1 more source