Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/81377
Full metadata record
DC FieldValueLanguage
dc.contributor.authorPeng, Dongjuen
dc.contributor.authorHill, Emma M.en
dc.contributor.authorLi, Linlinen
dc.contributor.authorSwitzer, Adam D.en
dc.contributor.authorLarson, Kristine M.en
dc.date.accessioned2019-07-09T01:09:46Zen
dc.date.accessioned2019-12-06T14:29:35Z-
dc.date.available2019-07-09T01:09:46Zen
dc.date.available2019-12-06T14:29:35Z-
dc.date.issued2019en
dc.identifier.citationPeng, D., Hill, E. M., Li, L., Switzer, A. D., & Larson, K. M. (2019). Application of GNSS interferometric reflectometry for detecting storm surges. GPS Solutions, 23(2). doi:10.1007/s10291-019-0838-yen
dc.identifier.issn1080-5370en
dc.identifier.urihttps://hdl.handle.net/10356/81377-
dc.identifier.urihttp://hdl.handle.net/10220/49184en
dc.description.abstractA single geodetic GNSS station placed at the coast has the capability of a traditional tide gauge for sea-level measurements, with the additional advantage of simultaneously obtaining vertical land motions. The sea-level measurements are obtained using GNSS signals that have reflected off the water, using analysis of the signal-to-noise ratio (SNR) data. For the first time, we apply this technique to detect extreme weather-induced sea-level fluctuations, i.e., storm surges. We first derive 1-year sea-level measurements under normal weather conditions, for a GNSS station located in Hong Kong, and compare them with traditional tide-gauge data to validate its performance. Our results show that the RMS difference between the individual GNSS sea-level measurements and tide-gauge records is about 12.6 cm. Second, we focus on the two recent extreme events, Typhoon Hato of 2017 and Typhoon Mangkhut of 2018, that are ranked the third and second most powerful typhoons hitting Hong Kong since 1954 in terms of maximum sea level. We use GNSS SNR data from two coastal stations to produce sea-level measurements during the two typhoon events. Referenced to predicted astronomical tides, the storm surges caused by the two events are evident in the sea-level time series generated from the SNR data, and the results also agree with tide-gauge records. Our results demonstrate that this technique has the potential to provide a new approach to monitor storm surges that complement existing tide-gauge networks.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent11p.en
dc.language.isoenen
dc.relation.ispartofseriesGPS Solutionsen
dc.rights© 2019 The Author(s). This article is distributed under the terms of the Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en
dc.subjectGNSS-IRen
dc.subjectSuper Typhoon Hatoen
dc.subjectScience::Geologyen
dc.titleApplication of GNSS interferometric reflectometry for detecting storm surgesen
dc.typeJournal Articleen
dc.contributor.schoolAsian School of the Environmenten
dc.contributor.researchEarth Observatory of Singaporeen
dc.identifier.doi10.1007/s10291-019-0838-yen
dc.description.versionPublished versionen
item.fulltextWith Fulltext-
item.grantfulltextopen-
Appears in Collections:ASE Journal Articles
EOS Journal Articles
Files in This Item:
File Description SizeFormat 
Peng2019_Article_ApplicationOfGNSSInterferometr.pdfMain article3.19 MBAdobe PDFThumbnail
View/Open

Google ScholarTM

Check

Altmetric

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.