Report for: Marine Ice Sheet Collapse Potentially Under Way for the Thwaites Glacier Basin, West Antarctica

Title	Marine Ice Sheet Collapse Potentially Under Way for the Thwaites Glacier Basin, West Antarctica
Published in	Science, May 2014
DOI	10.1126/science.1249055
Pubmed ID	24821948
Authors	Ian Joughin, Benjamin E. Smith, Brooke Medley
Abstract	Resting atop a deep marine basin, the West Antarctic Ice Sheet has long been considered prone to instability. Using a numerical model, we investigated the sensitivity of Thwaites Glacier to ocean melt and whether its unstable retreat is already under way. Our model reproduces observed losses when forced with ocean melt comparable to estimates. Simulated losses are moderate (<0.25 mm per year at sea level) over the 21st century but generally increase thereafter. Except possibly for the lowest-melt scenario, the simulations indicate that early-stage collapse has begun. Less certain is the time scale, with the onset of rapid (>1 mm per year of sea-level rise) collapse in the different simulations within the range of 200 to 900 years.

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Twitter Demographics

The data shown below were collected from the profiles of 248 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Geographical breakdown

Country	Count	As %
United States	55	22%
United Kingdom	18	7%
Spain	10	4%
Sweden	7	3%
Australia	6	2%
Canada	5	2%
Germany	4	2%
France	4	2%
Mexico	3	1%
Other	29	12%
Unknown	107	43%

Demographic breakdown

Type	Count	As %
Members of the public	200	81%
Scientists	32	13%
Science communicators (journalists, bloggers, editors)	12	5%
Practitioners (doctors, other healthcare professionals)	4	2%

Mendeley readers

The data shown below were compiled from readership statistics for 605 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country	Count	As %
United States	10	2%
Germany	3	<1%
Canada	3	<1%
Netherlands	2	<1%
Australia	2	<1%
United Kingdom	2	<1%
Belgium	2	<1%
Brazil	1	<1%
Norway	1	<1%
Other	3	<1%
Unknown	576	95%

Demographic breakdown

Readers by professional status	Count	As %
Researcher	152	25%
Student > Ph. D. Student	128	21%
Student > Master	63	10%
Student > Bachelor	57	9%
Professor	31	5%
Other	107	18%
Unknown	67	11%

Readers by discipline	Count	As %
Earth and Planetary Sciences	296	49%
Environmental Science	92	15%
Agricultural and Biological Sciences	30	5%
Physics and Astronomy	17	3%
Engineering	17	3%
Other	68	11%
Unknown	85	14%

Attention Score in Context

This research output has an Altmetric Attention Score of 1525. 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 15 March 2022.

All research outputs

#5,370

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Outputs from Science

#316

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Outputs of similar age

#24

of 205,191 outputs

Outputs of similar age from Science

of 873 outputs

Altmetric has tracked 21,244,293 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 76,378 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 59.6. This one has done particularly well, scoring higher than 99% of its peers.

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Marine Ice Sheet Collapse Potentially Under Way for the Thwaites Glacier Basin, West Antarctica

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