Reconstructed July temperatures since AD 1800, based on a tree-ring chronology network in the Northwest Pacific region, and implied large-scale atmospheric-oceanic interaction

Shunsuke Tei, Hitoshi Yonenobu, Shinya Suzuki, Motonari Ohyama, Katsuya Gotanda, Takeshi Nakagawa, Atsuko Sugimoto

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We present a large-scale dendroclimatic reconstruction of July temperatures from 42-52°N to 140-145°E in the Northwest Pacific region for the period from 1800 to 1996. A multiple regression model with principal components (PCs) of a tree-ring chronology network was used for the reconstruction, which accounted for 31.7% of the temperature variance in the calibration period (1901-1996). The reconstructed spatially-averaged July temperatures show large fluctuations, which are comparable to previously published dendroclimatic reconstruction of spring temperatures in northeast Asia. It also shows stable relationships with other datasets, notably sea surface temperatures (SSTs) in a wide area of the North Pacific and the Pacific Decadal Oscillation (PDO), indicating atmospheric-oceanic interaction in the Northwest Pacific region since AD 1800.

Original languageEnglish
Pages (from-to)203-209
Number of pages7
JournalPalaeogeography, Palaeoclimatology, Palaeoecology
Volume435
DOIs
Publication statusPublished - 2015 Oct 1

Keywords

  • North Pacific
  • PDO
  • SST
  • Summer temperature
  • Tree rings

ASJC Scopus subject areas

  • Oceanography
  • Ecology, Evolution, Behavior and Systematics
  • Earth-Surface Processes
  • Palaeontology

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