High-resolution reconstruction of typhoon events since similar to 1850 CE based on multi-proxy sediment records in a coastal lagoon, South China

Xian H., Dong X., Li Y., Zhan N., Jeppesen E.

SCIENCE OF THE TOTAL ENVIRONMENT, vol.803, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 803
  • Publication Date: 2022
  • Doi Number: 10.1016/j.scitotenv.2021.150063
  • Journal Name: SCIENCE OF THE TOTAL ENVIRONMENT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Analytical Abstracts, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chimica, Communication Abstracts, Compendex, EMBASE, Environment Index, Food Science & Technology Abstracts, Geobase, Greenfile, MEDLINE, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
  • Keywords: Typhoon history, Pinqing Lagoon, Sedimentary proxy, Coastal geomorphology, TROPICAL CYCLONES, STORM EVENTS, LAKE, PB-210, GUANGDONG, CS-137, OSCILLATION, FREQUENCY, DEPOSITS, PACIFIC
  • Middle East Technical University Affiliated: No

Abstract

Coastal lagoon sediments provide continuous and high-resolution records of the activity of past typhoons. In this study, multiple proxies were analyzed with a core taken from Pinqing Lagoon located on the northeast margin of the South China Sea. Based on Pb-210 dating, grain sizes and other geophysical/geochemical analyses, a total of seven typhoon-induced layers covering the past similar to 170 years were identified and compared with observational and historical records of typhoons. The layers were characterized by a higher sand fraction, lower loss-on-ignition, decreased magnetic susceptibility, and increased element ratios of Sr/Fe, Sr/Ba, Ca/Ti, and Ca/K. We found reduced sensitivity of the sedimentary response to typhoons due to the coastal geomorphological evolution, such as sand spit growth, which emphasizes the value of using a multiple-proxy approach. The typhoon activity revealed by both sedimentary proxies and observational/historical records in Shanwei was closely related to the variations of the El Nino/Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO), and to sunspot activity, providing useful clues for reconstructing the long-term typhoon history in the lagoon in order to decipher the patterns and mechanisms of typhoons in South China. (C) 2021 Elsevier B.V. All rights reserved.