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The Last Glacial Maximum

Overview of attention for article published in Science, August 2009
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (96th percentile)

Mentioned by

news
15 news outlets
blogs
11 blogs
policy
2 policy sources
twitter
3 tweeters
wikipedia
15 Wikipedia pages

Citations

dimensions_citation
1804 Dimensions

Readers on

mendeley
2006 Mendeley
citeulike
5 CiteULike
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Title
The Last Glacial Maximum
Published in
Science, August 2009
DOI 10.1126/science.1172873
Pubmed ID
Authors

P. U. Clark, A. S. Dyke, J. D. Shakun, A. E. Carlson, J. Clark, B. Wohlfarth, J. X. Mitrovica, S. W. Hostetler, A. M. McCabe

Abstract

We used 5704 14C, 10Be, and 3He ages that span the interval from 10,000 to 50,000 years ago (10 to 50 ka) to constrain the timing of the Last Glacial Maximum (LGM) in terms of global ice-sheet and mountain-glacier extent. Growth of the ice sheets to their maximum positions occurred between 33.0 and 26.5 ka in response to climate forcing from decreases in northern summer insolation, tropical Pacific sea surface temperatures, and atmospheric CO2. Nearly all ice sheets were at their LGM positions from 26.5 ka to 19 to 20 ka, corresponding to minima in these forcings. The onset of Northern Hemisphere deglaciation 19 to 20 ka was induced by an increase in northern summer insolation, providing the source for an abrupt rise in sea level. The onset of deglaciation of the West Antarctic Ice Sheet occurred between 14 and 15 ka, consistent with evidence that this was the primary source for an abrupt rise in sea level approximately 14.5 ka.

Twitter Demographics

The data shown below were collected from the profiles of 3 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 2,006 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 30 1%
United Kingdom 12 <1%
Canada 9 <1%
Brazil 7 <1%
Germany 7 <1%
Portugal 5 <1%
Chile 4 <1%
Czechia 3 <1%
Switzerland 3 <1%
Other 45 2%
Unknown 1881 94%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 509 25%
Researcher 333 17%
Student > Master 306 15%
Student > Bachelor 221 11%
Professor > Associate Professor 100 5%
Other 359 18%
Unknown 178 9%
Readers by discipline Count As %
Earth and Planetary Sciences 865 43%
Agricultural and Biological Sciences 412 21%
Environmental Science 231 12%
Biochemistry, Genetics and Molecular Biology 73 4%
Arts and Humanities 61 3%
Other 123 6%
Unknown 241 12%

Attention Score in Context

This research output has an Altmetric Attention Score of 194. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 March 2020.
All research outputs
#110,121
of 17,522,710 outputs
Outputs from Science
#4,182
of 70,656 outputs
Outputs of similar age
#581
of 138,652 outputs
Outputs of similar age from Science
#26
of 817 outputs
Altmetric has tracked 17,522,710 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 70,656 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 55.3. This one has done particularly well, scoring higher than 94% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 138,652 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 817 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 96% of its contemporaries.