气候变化领域集成服务门户(CCPortal): New Zealand-Wide Geodetic Strain Rates Using a Physics-Based Approach

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DOI	10.1029/2019GL084606
	New Zealand-Wide Geodetic Strain Rates Using a Physics-Based Approach
	Haines A.J.; Wallace L.M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:1
英文摘要	We present a new strain rate map for New Zealand, based on geodetic data acquired from 1995 to 2013. We use a physics-based approach, which inverts the horizontal GPS velocities for Vertical Derivatives of Horizontal Stress (VDoHS) rates, relying on using elasticity theory and the horizontal force balance equations at the Earth's surface. The VDoHS rates are then integrated to obtain horizontal strain rates. Strain rates derived using this new approach are less spatially smoothed than previous results using conventional methods. In addition to the major plate boundary features in New Zealand, low-rate zones of deformation are resolved by the strain and VDoHS rates, which bodes well for the utility of this method to reveal processes on hidden or ill-characterized fault zones. Application of this new method to obtain strain and VDoHS rates provides the highest resolution view to-date of contemporary deformation in New Zealand. © 2019. American Geophysical Union. All Rights Reserved.
英文关键词	Deformation; Elasticity; Geodesy; Geodetic satellites; Global positioning system; Conventional methods; Crustal deformations; Highest resolutions; Horizontal forces; Horizontal strain; Horizontal stress; New zealand; Vertical derivatives; Strain rate; crustal deformation; elasticity; geodesy; geological mapping; GPS; plate boundary; strain rate; New Zealand
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170838
作者单位	GNS Science, Lower Hutt, New Zealand; Institute for Geophysics, University of Texas at Austin, Austin, TX, United States
推荐引用方式 GB/T 7714	Haines A.J.,Wallace L.M.. New Zealand-Wide Geodetic Strain Rates Using a Physics-Based Approach[J],2020,47(1).
APA	Haines A.J.,&Wallace L.M..(2020).New Zealand-Wide Geodetic Strain Rates Using a Physics-Based Approach.Geophysical Research Letters,47(1).
MLA	Haines A.J.,et al."New Zealand-Wide Geodetic Strain Rates Using a Physics-Based Approach".Geophysical Research Letters 47.1(2020).