@article{8eb119ab10c14639aeeef0ac6552f968,
title = "Extending Instrumental Sea-Level Records Using Coral Microatolls, an Example From Southeast Asia",
abstract = "The small number of reliable long-term (i.e., >50 yrs) tide gauges in tropical locations is a major source of uncertainty in modern sea-level change. Coral microatolls record relative sea-level (RSL) change over their lifetimes and have the potential to extend the instrumental record. Here, we examined a 20th and 21st century RSL record from two living coral microatolls from Mapur Island, Indonesia, which produced 16 sea-level index points. We validated and combined the living coral microatoll data with tide gauge data to show RSL at Mapur Island was 0.0 ± 1.6 mm/yr (2σ) from 1915 to 1990 and 1.0 ± 2.1 mm/yr (2σ) from 1990 to 2019. Through the addition of microatoll RSL data we extended the record of modern sea-level change by over 50 years and reduced its uncertainty by ∼50%.",
keywords = "Singapore, coral microatolls, sea-level change, sea-level index points, tide gauges",
author = "Majewski, {J. M.} and Meltzner, {A. J.} and Switzer, {A. D.} and Shaw, {T. A.} and T. Li and S. Bradley and Walker, {J. S.} and Kopp, {R. E.} and D. Samanta and Natawidjaja, {D. H.} and Suwargadi, {B. W.} and Horton, {B. P.}",
note = "Funding Information: The research was supported by the National Research Foundation (NRF) Singapore under its NRF Fellowship scheme (Awards NRF-RF2010-04 to ADS and NRF-NRFF11-2019-0008 to AJM), the Singapore Ministry of Education (Awards RGC4/14 to ADS and MOE2019-T3-1-004 to BPH), and the National Research Foundation Singapore and the Singapore Ministry of Education under the Research Centres of Excellence initiative. This research is also supported by the RIE2020 National Sea Level Programme Funding Initiative (Award USS-IF-2020-1), administered by the National Environment Agency, Singapore and supported by the National Research Foundation, Singapore. This paper results from joint-research activities between the Earth Observatory of Singapore–Nanyang Technological University and the Research Center for Geotechnology LIPI. The GIA modelling is conducted in part using the research computing facilities and/or advisory services offered by Information Technology Services, the University of Hong Kong. We express our gratitude to Imam Suprihanto and Dudi Prayudi for assistance in the field and Muhammad Hadi Ikhsan for support with the graphics. We would also like to thank two anonymous reviewers whose comments improved the clarity of the manuscript. This work comprises Earth Observatory of Singapore contribution no. 320. Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not reflect the views of the NRF, MND and NEA. Funding Information: The research was supported by the National Research Foundation (NRF) Singapore under its NRF Fellowship scheme (Awards NRF‐RF2010‐04 to ADS and NRF‐NRFF11‐2019‐0008 to AJM), the Singapore Ministry of Education (Awards RGC4/14 to ADS and MOE2019‐T3‐1‐004 to BPH), and the National Research Foundation Singapore and the Singapore Ministry of Education under the Research Centres of Excellence initiative. This research is also supported by the RIE2020 National Sea Level Programme Funding Initiative (Award USS‐IF‐2020‐1), administered by the National Environment Agency, Singapore and supported by the National Research Foundation, Singapore. This paper results from joint‐research activities between the Earth Observatory of Singapore–Nanyang Technological University and the Research Center for Geotechnology LIPI. The GIA modelling is conducted in part using the research computing facilities and/or advisory services offered by Information Technology Services, the University of Hong Kong. We express our gratitude to Imam Suprihanto and Dudi Prayudi for assistance in the field and Muhammad Hadi Ikhsan for support with the graphics. We would also like to thank two anonymous reviewers whose comments improved the clarity of the manuscript. This work comprises Earth Observatory of Singapore contribution no. 320. Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not reflect the views of the NRF, MND and NEA. Publisher Copyright: {\textcopyright} 2022 The Authors.",
year = "2022",
month = feb,
day = "28",
doi = "10.1029/2021GL095710",
language = "English (US)",
volume = "49",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "4",
}