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Joint Study between Japan and China on the Environmental Condition of Relics in Desert Region of China for the Conservation of Cultural Property

Research Project

Project/Area Number 01044141
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionJoint Research
Research InstitutionTokyo National Research Institute of Cultural Properties

Principal Investigator

MIWA Karoku (1990-1991)  Director, Department of Restoration Science, Tokyo National Research Institute of Cultural Properties (TNRICP), 修復技術部, 部長 (00222422)

伊原 恵司 (1989)  東京国立文化財研究所, 修復技術部, 部長

Co-Investigator(Kenkyū-buntansha) ISHIKAWA Rikuro  Senior Researcher, Department of Conservation Science, TNRICP, 保存科学部, 主任研究官 (30000459)
KADOKURA Takeo  Senior Researcher, Department of Conservation Science, TNRICP, 保存科学部, 主任研究官 (10000457)
ARAI Hideo  Head of Biological Section, Department of Conservation Science, TNRICP, 保存科学部, 室長 (00000456)
KAWANOBE Wataru  Senior Researcher, Department of Restoration Science, TNRICP, 修復技術部, 主任研究官 (00169749)
NISHIURA Tadateru  Head, Asian Cultural Heritage Conservation Division, TNRICP, アジア文化財保存研究室, 室長 (20099922)
MASUDA Katsuhiko  Head of 2nd Section, Department of Restoration Science, TNRICP, 修復技術部, 室長 (40099924)
Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥7,300,000 (Direct Cost: ¥7,300,000)
Fiscal Year 1991: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 1990: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1989: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsChina / Desert Region / Conservation / Natural Environment / Measurement / Dunhuang
Research Abstract

Temperature, humidity, wind velocity and sunshine have been measured at caves No. 53 and No. 194 of Dunhuang Mogao Caves since 1989. Cave No. 53 is located on the lower level of a cliff and Cave No. 194 is on the upper level. The climate data are recorded every hour (twenty-four times a day) in data loggers. The annual mean temperatures in 1990 were 12.1゚C at cave No. 53 and 14.3゚C at No. 194, while the annual mean humidities were 28% RH and 22% RH respectively. In order to measure the humidity in the rock of the caves, holes were dug in the ceiling of cave No. 194 and on the floor of eave No. 53. The results were as follows.
1. The temperature changes (daily and annually) and the daily humidity changes in both eaves were much smaller than those outside.
2. Slow wind was observed at the floor of cave No. 194 due to seasonal temperature changes.
3. Humidity within the two holes was always kept at about 75% which is unusually higher than elsewhere.
The following can be deduced from an analysis of the results. The wall paintings of the cave deteriorated mainly by water even though Mogao Cave is situated in a desert region. Rain and ground water move through the rock of the caves ; then water evaporates from or near the surface. The evaporation causes spotted flakings of the wall paintings by efflorescence of soluble salts. The efflorescence may be accelerated by wind in caves and by a wrong method of restoration.

Report

(2 results)
  • 1991 Final Research Report Summary
  • 1990 Annual Research Report

Research Products

(6 results)

All Other

All Publications (6 results)

  • [Publications] 張擁軍,王宝義,三浦 定俊,西浦 忠輝: "敦煌莫高窟的气象観測(2)" 敦煌研究. 27. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 三浦 定俊,西浦 忠輝,張擁軍,三宝義: "敦煌莫高窟の気象(1)ー1989年1月から1991年10月迄ー" 保存科学. 31. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] ZHANG Yongjun, WANG Baoyi, Sadatoshi MIURA and Tadateru NISHIURA: "Measurement of Climatic Condition in Dunhuang Magao Caves" Dunhuang Research. 27. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Sadatoshi MIURA, Tadateru NISHIURA, ZHANG Yongjun and WANG Baoyi: "Climate in the Dunhuang Mogaoku Caves (1) -1989 to 1991-" Science for Conservation. 31. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 李 実・張 〓軍・三浦 定俊・西浦 忠輝: "敦煌莫高窟的気象観測" 敦煌研究. 22. 108-114 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 三浦 定俊・西浦 忠輝・李 実・張 〓軍: "敦煌莫高窟における気象観測(1)" 保存科学. 29. 1-7 (1990)

    • Related Report
      1990 Annual Research Report

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Published: 1989-03-31   Modified: 2016-04-21  

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