Mr. Zhe Zhang Profile

Zhe Zhang

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 1 June 2023 Paper

Research on the method of pure deformation field by GNSS and InSAR

Kaijun Yang, Fan Lei, Li Cao, Jide Wei, Zhe Zhang, Tang Wei

Proceedings Volume 12710, 1271003 (2023) https://doi.org/10.1117/12.2682583

KEYWORDS: Deformation, Interferometric synthetic aperture radar, Satellite navigation systems, Reflection, Interferograms, Singular value decomposition, Motion analysis, Interpolation, Synthetic aperture radar, Shape analysis

Read Abstract +

This paper takes the geological disaster-prone area of Mayang County of Hunan Province as the test area.The results of the GNSS station time series calculation show that the vertical shape variable of the regional overall crustal plate ranges from 3.39mm to 4.85mm, indicating the overall upward trend;According to the calculation based on the InSAR long time series, the absolute vertical shape variable of the whole surface ranges from -41mm to 31mm, indicating the overall subsidence and local uplift trend.This paper explains the difference between the two methods and the reasons for the difference.It determines the difference is the difference between the bedrock plate movement and the bare surface absolute movement and forms a set of regional pure deformation field calculation methods. In the study area, the GNSS bedrock observation and InSAR surface observation results were respectively fitted with the global spatial difference. Then the difference was calculated to obtain the relative shape variable of the exposed surface movement compared with the bedrock, and the regional pure settlement field was -34.46mm~34.89mm. In this paper, it is proved by experiments that there are significant differences between the monitoring results of bedrock GNSS station and InSAR technology in the geological disaster research area. If the absolute surface shape variable observed by the InSAR method is not deducted from the relative shape variable, it is easy to misjudge the landslide hidden danger trend. To better reflect the surface subsidence trend, when studying the subsidence of geological disaster areas, it is necessary to subtract the bedrock shape variable from the analysis and to use the surface’s movement trend (pure deformation field) relative to the crustal bedrock as a variable.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years