| Title |
Climate-driven polar motion: 2003–2015
|
|---|---|
| Published in |
Science Advances, April 2016
|
| DOI | 10.1126/sciadv.1501693 |
| Pubmed ID | |
| Authors |
Surendra Adhikari, Erik R. Ivins |
| Abstract |
Earth's spin axis has been wandering along the Greenwich meridian since about 2000, representing a 75° eastward shift from its long-term drift direction. The past 115 years have seen unequivocal evidence for a quasi-decadal periodicity, and these motions persist throughout the recent record of pole position, in spite of the new drift direction. We analyze space geodetic and satellite gravimetric data for the period 2003-2015 to show that all of the main features of polar motion are explained by global-scale continent-ocean mass transport. The changes in terrestrial water storage (TWS) and global cryosphere together explain nearly the entire amplitude (83 ± 23%) and mean directional shift (within 5.9° ± 7.6°) of the observed motion. We also find that the TWS variability fully explains the decadal-like changes in polar motion observed during the study period, thus offering a clue to resolving the long-standing quest for determining the origins of decadal oscillations. This newly discovered link between polar motion and global-scale TWS variability has broad implications for the study of past and future climate. |
X Demographics
The data shown below were collected from the profiles of 245 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 35 | 14% |
| Spain | 12 | 5% |
| United Kingdom | 10 | 4% |
| Canada | 9 | 4% |
| Japan | 6 | 2% |
| Nepal | 4 | 2% |
| Germany | 4 | 2% |
| Italy | 3 | 1% |
| Finland | 3 | 1% |
| Other | 38 | 16% |
| Unknown | 121 | 49% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 209 | 85% |
| Scientists | 29 | 12% |
| Science communicators (journalists, bloggers, editors) | 5 | 2% |
| Practitioners (doctors, other healthcare professionals) | 2 | <1% |
Mendeley readers
The data shown below were compiled from readership statistics for 142 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | <1% |
| France | 1 | <1% |
| Luxembourg | 1 | <1% |
| Australia | 1 | <1% |
| Unknown | 138 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 43 | 30% |
| Student > Ph. D. Student | 27 | 19% |
| Student > Master | 13 | 9% |
| Student > Bachelor | 13 | 9% |
| Professor | 6 | 4% |
| Other | 15 | 11% |
| Unknown | 25 | 18% |
| Readers by discipline | Count | As % |
|---|---|---|
| Earth and Planetary Sciences | 57 | 40% |
| Environmental Science | 19 | 13% |
| Physics and Astronomy | 13 | 9% |
| Engineering | 9 | 6% |
| Agricultural and Biological Sciences | 3 | 2% |
| Other | 11 | 8% |
| Unknown | 30 | 21% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1490. 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 18 March 2024.
All research outputs
#8,091
of 25,709,917 outputs
Outputs from Science Advances
#118
of 12,485 outputs
Outputs of similar age
#87
of 316,360 outputs
Outputs of similar age from Science Advances
#2
of 133 outputs
Altmetric has tracked 25,709,917 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.
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