An improved spatial-temporal interpolation and its application in the oceanic observations

Huizan Wang*, Ren Zhang, Hengqian Yan, Shuliang Wang, Lei Liu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An improved spatial-temporal interpolation method, which can eliminate suspicious interpolated values effectively and consider both direction anisotropy and angle-based weight, is proposed to overcome the insufficiency of the traditional spatial-temporal interpolation. By using the traditional and improved spatial-temporal interpolation respectively, different weekly products of ocean temperature fields from surface to 2000m are reconstructed in the Pacific Ocean for interpolated test based on the Argo observations, and then the reconstructed products are validated in comparison with other gridded product and in-situ observations. The results show that the error of reconstructed data by the improved method is smaller than that of the traditional method apparently, and the improved interpolation can eliminate the suspicious estimated data effectively and improve the interpolated results greatly. The improved interpolation method is very effective to interpolate scattered data onto regular grids for data reconstruction.

Original languageEnglish
Title of host publicationGeo-Spatial Knowledge and Intelligence - 5th International Conference, GSKI 2017, Revised Selected Papers
EditorsHanning Yuan, Jing Geng, Chuanlu Liu, Tisinee Surapunt, Fuling Bian
PublisherSpringer Verlag
Pages437-446
Number of pages10
ISBN (Print)9789811308956
DOIs
Publication statusPublished - 2018
Event5th International Conference on Geo-Spatial Knowledge and Intelligence, GSKI 2017 - Chiang Mai, Thailand
Duration: 8 Dec 201710 Dec 2017

Publication series

NameCommunications in Computer and Information Science
Volume849
ISSN (Print)1865-0929

Conference

Conference5th International Conference on Geo-Spatial Knowledge and Intelligence, GSKI 2017
Country/TerritoryThailand
CityChiang Mai
Period8/12/1710/12/17

Keywords

  • Angle-based weight
  • Anisotropy
  • Argo observation
  • Data reconstruction
  • Spatial-temporal weighted interpolation

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