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Time-varying land subsidence detected by radar altimetry: California, Taiwan and north China

Overview of attention for article published in Scientific Reports, June 2016
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Title
Time-varying land subsidence detected by radar altimetry: California, Taiwan and north China
Published in
Scientific Reports, June 2016
DOI 10.1038/srep28160
Pubmed ID
Authors

Cheinway Hwang, Yuande Yang, Ricky Kao, Jiancheng Han, C. K. Shum, Devin L. Galloway, Michelle Sneed, Wei-Chia Hung, Yung-Sheng Cheng, Fei Li

Abstract

Contemporary applications of radar altimetry include sea-level rise, ocean circulation, marine gravity, and icesheet elevation change. Unlike InSAR and GNSS, which are widely used to map surface deformation, altimetry is neither reliant on highly temporally-correlated ground features nor as limited by the available spatial coverage, and can provide long-term temporal subsidence monitoring capability. Here we use multi-mission radar altimetry with an approximately 23 year data-span to quantify land subsidence in cropland areas. Subsidence rates from TOPEX/POSEIDON, JASON-1, ENVISAT, and JASON-2 during 1992-2015 show time-varying trends with respect to displacement over time in California's San Joaquin Valley and central Taiwan, possibly related to changes in land use, climatic conditions (drought) and regulatory measures affecting groundwater use. Near Hanford, California, subsidence rates reach 18 cm yr(-1) with a cumulative subsidence of 206 cm, which potentially could adversely affect operations of the planned California High-Speed Rail. The maximum subsidence rate in central Taiwan is 8 cm yr(-1). Radar altimetry also reveals time-varying subsidence in the North China Plain consistent with the declines of groundwater storage and existing water infrastructure detected by the Gravity Recovery And Climate Experiment (GRACE) satellites, with rates reaching 20 cm yr(-1) and cumulative subsidence as much as 155 cm.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 89 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 89 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 18 20%
Researcher 14 16%
Student > Master 11 12%
Professor 5 6%
Professor > Associate Professor 5 6%
Other 14 16%
Unknown 22 25%
Readers by discipline Count As %
Earth and Planetary Sciences 28 31%
Environmental Science 13 15%
Engineering 13 15%
Business, Management and Accounting 3 3%
Physics and Astronomy 2 2%
Other 5 6%
Unknown 25 28%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 July 2016.
All research outputs
#14,856,117
of 22,879,161 outputs
Outputs from Scientific Reports
#72,489
of 123,604 outputs
Outputs of similar age
#213,085
of 353,105 outputs
Outputs of similar age from Scientific Reports
#2,061
of 3,655 outputs
Altmetric has tracked 22,879,161 research outputs across all sources so far. This one is in the 33rd percentile – i.e., 33% of other outputs scored the same or lower than it.
So far Altmetric has tracked 123,604 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 18.2. This one is in the 37th percentile – i.e., 37% of its peers scored the same or lower than it.
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 353,105 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 36th percentile – i.e., 36% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 3,655 others from the same source and published within six weeks on either side of this one. This one is in the 39th percentile – i.e., 39% of its contemporaries scored the same or lower than it.