Measuring Coastal Absolute Sea-Level Changes Using GNSS Interferometric Reflectometry Article Swipe
Dongju Peng
,
Lujia Feng
,
Kristine M. Larson
,
Emma M. Hill
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/rs13214319
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/rs13214319
Rising sea levels pose one of the greatest threats to coastal zones. However, sea-level changes near the coast, particularly absolute sea-level changes, have been less well monitored than those in the open ocean. In this study, we aim to investigate the potential of Global Navigation Satellite Systems Interferometric Reflectometry (GNSS-IR) to measure coastal absolute sea-level changes and tie on-land (coastal GNSS) and offshore (satellite altimetry) observations into the same framework. We choose three coastal GNSS stations, one each in regions of subsidence, uplift and stable vertical land motions, to derive both relative sea levels and sea surface heights (SSH) above the satellite altimetry reference ellipsoid from 2008 to 2020. Our results show that the accuracy of daily mean sea levels from GNSS-IR is <1.5 cm compared with co-located tide-gauge records, and amplitudes of annual cycle and linear trends estimated from GNSS-IR measurements and tide-gauge data agree within uncertainty. We also find that the de-seasoned and de-trended SSH time series from GNSS-IR and collocated satellite altimetry are highly correlated and the estimated annual amplitudes and linear trends statistically agree well, indicating that GNSS-IR has the potential to monitor coastal absolute sea-level changes and provide valuable information for coastal sea-level and climate studies.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/rs13214319
- https://www.mdpi.com/2072-4292/13/21/4319/pdf?version=1635399713
- OA Status
- gold
- Cited By
- 30
- References
- 47
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3211298651
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3211298651Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/rs13214319Digital Object Identifier
- Title
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Measuring Coastal Absolute Sea-Level Changes Using GNSS Interferometric ReflectometryWork title
- Type
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articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2021Year of publication
- Publication date
-
2021-10-27Full publication date if available
- Authors
-
Dongju Peng, Lujia Feng, Kristine M. Larson, Emma M. HillList of authors in order
- Landing page
-
https://doi.org/10.3390/rs13214319Publisher landing page
- PDF URL
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https://www.mdpi.com/2072-4292/13/21/4319/pdf?version=1635399713Direct link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://www.mdpi.com/2072-4292/13/21/4319/pdf?version=1635399713Direct OA link when available
- Concepts
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Tide gauge, GNSS applications, Altimeter, Sea level, Geodesy, Satellite, Remote sensing, Geodetic datum, Environmental science, Amplitude, Geology, Sea-surface height, Climatology, Oceanography, Aerospace engineering, Engineering, Quantum mechanics, PhysicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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30Total citation count in OpenAlex
- Citations by year (recent)
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2025: 8, 2024: 10, 2023: 6, 2022: 6Per-year citation counts (last 5 years)
- References (count)
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47Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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