Reconstruction of regular time series from bi-monthly temperature data in the Yellow Sea and the northwestern East China Sea SCOPUS KCI

Title
Reconstruction of regular time series from bi-monthly temperature data in the Yellow Sea and the northwestern East China Sea
Author(s)
Lie, H.-J.; Lee, S.
KIOST Author(s)
Lee, Seok(이석)
Publication Year
2010
Abstract
Reconstruction of evenly-spaced, regular time series from routine survey serial data was investigated for precise analysis of spatio-temporal variations in a temperate sea at mid-latitudes where the seasonality dominates the interannual variability. Considering that the annual range of sea surface temperature in the Yellow Sea and the northwestern East China Sea can be as large as 15-20 °C, temperature data collected bi-monthly in these temperate seas were used for the assessment of reconstruction methodology. The cubic spline interpolation with a sampling interval of 0.5 months reconstructed the regular time series closest to the in-situ measurements among various interpolation schemes. Also, two computation methods for the interannual anomaly were compared; the residual method that the long-term monthly means are subtracted from the monthly serial data and the filtering method that high-frequency variations are removed using a low-pass filter. In that the high-frequency variations in frequencies greater than 1 cycle per year are comparable in magnitude to the interannual variation, the residual method proves inadequate in the temperate sea. High-frequency noises can be effectively removed through the use of a proper low-pass filter with bell-shaped weights. © 2010 Korea Ocean Research & Development Institute (KORDI) and the Korean Society of Oceanography (KSO) and Springer Netherlands.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4164
DOI
10.1007/s12601-010-0012-5
Bibliographic Citation
Ocean Science Journal, v.45, no.2, pp.139 - 149, 2010
Subject
annual variation; in situ measurement; interpolation; reconstruction; sea surface temperature; seasonality; spatial variation; temporal variation; time series; East China Sea; Pacific Ocean; Yellow Sea
Keywords
Annual variation; East China Sea; Interannual variation; Regular time series; Temperature; Yellow Sea
Type
Article
Language
English
Document Type
Article
Related Researcher
Research Interests

Tidal dynamics,Water circulation,Marine Environment,조석 역학,해양순환,해양환경

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse