气候变化领域集成服务门户(CCPortal): Limitations in One-Dimensional (an)Elastic Earth Models for Explaining GPS-Observed M2 Ocean Tide Loading Displacements in New Zealand

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DOI	10.1029/2021JB021992
	Limitations in One-Dimensional (an)Elastic Earth Models for Explaining GPS-Observed M2 Ocean Tide Loading Displacements in New Zealand
	Matviichuk B.; King M.A.; Watson C.S.; Bos M.S.
发表日期	2021
ISSN	21699313
卷号	126 期号:6
英文摘要	GPS observations of ocean tide loading displacements can help infer the regional anelastic properties of the asthenosphere. We estimate M2 ocean tide loading displacements at 170 GPS sites in New Zealand and compare these to modeled values using a range of numerical tide and radially symmetric (1D) elastic and anelastic Earth models. Regardless of the model combination, we are unable to reduce the strong spatial coherence of the M2 residuals across the North Island where they reach 0.4 mm (2%). The best fit in the North Island is obtained when combining the FES2014b tide model with spatially variable ocean density and water compressibility, and the STW105 Earth model. The residuals exhibit a change of ∼0.3 mm in magnitude between the Taupo Volcanic Zone and the east coast (∼100 km), suggesting that this region's laterally varying, shallow rheological structure may need to be considered to explain these observations. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	GPS; Ocean Tide Loading; Rheology; Taupo Volcanic Zone
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187076
作者单位	School of Geography, Planning, and Spatial Sciences, University of Tasmania, Hobart, Australia; Instituto Dom Luiz, University of Beira Interior, Covilhã, Portugal
推荐引用方式 GB/T 7714	Matviichuk B.,King M.A.,Watson C.S.,et al. Limitations in One-Dimensional (an)Elastic Earth Models for Explaining GPS-Observed M2 Ocean Tide Loading Displacements in New Zealand[J],2021,126(6).
APA	Matviichuk B.,King M.A.,Watson C.S.,&Bos M.S..(2021).Limitations in One-Dimensional (an)Elastic Earth Models for Explaining GPS-Observed M2 Ocean Tide Loading Displacements in New Zealand.Journal of Geophysical Research: Solid Earth,126(6).
MLA	Matviichuk B.,et al."Limitations in One-Dimensional (an)Elastic Earth Models for Explaining GPS-Observed M2 Ocean Tide Loading Displacements in New Zealand".Journal of Geophysical Research: Solid Earth 126.6(2021).