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1 Summarizing Information to Update the SCAR–GGI Permanent Tide Gauge Observatory Sites, Antarctica Kazuo Shibuya and Shigeru Aoki National Institute of.

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Presentation on theme: "1 Summarizing Information to Update the SCAR–GGI Permanent Tide Gauge Observatory Sites, Antarctica Kazuo Shibuya and Shigeru Aoki National Institute of."— Presentation transcript:

1 1 Summarizing Information to Update the SCAR–GGI Permanent Tide Gauge Observatory Sites, Antarctica Kazuo Shibuya and Shigeru Aoki National Institute of Polar Research, Japan presented at the AGS01 Meeting at St. Petersburg July, 2001 Story A) Occupation records B) ITRF coordinates C) Instrument D) Calibration

2 2 We remind the task of GIANT Program Summary for the Program 5. Tide Gauge Data, at the XXVI SCAR Meeting of July 2000, Tokyo, Japan. GOAL: To consolidate the collection of and access to Antarctic tide gauge information Activities 1.Gather information on history of establishment and operation of Antarctic tide gauges 2.Research and list all permanent and significant tide gauges established for hydrographic information and scientific studies 3.List all known sea level determinations, dates and accuracy estimates for all significant tide gauge 4.Identify benchmark values and connections to GPS observations sites 5.Facilitate index data into the Geodetic data base 6.Facilitate the delivery of data to the Southern Ocean Sea Level Centre [SOSLC] 7.Post meta data on web – 2004 (Facilitate guidelines on establishment and calibrating on bottom mounted and acoustic type gauges in Antarctic conditions)

3 3 Bibliography about sea level variations from the Report to SCAR The most recent one is: Oikawa, K., and Iwamoto, K. (1999): Oceanographic data of the 38th Japanese Antarctic Research Expedition from November 1996 to March 1997, JARE Data Rep. No. 246 (Oceanography 21), 50pp, National Institute of Polar Research, Tokyo. Tidal data from JARE-21 through JARE-37 are available. JAPAN Hourly tidal observation data from each Japanese Antarctic Research Expedition were published by the JARE Data Reports Oceanography Series.

4 4 Other references are; Odamaki, M., Michida, Y., Noguchi, I., Iwanaga, Y., Ikeda, S., and Iwamoto, K. (1991):Mean sea level observed at Syowa Station, East Antarctica. Proc. NIPR Symp. Antarct.Geosci., 5, Nagata, Y., Kawamiya, M., Michida, Y. and Odamaki, M. (1993): Seasonal variations of the sea level at Syowa Station, Antarctica. Proc. NIPR Symp. Polar Meteorol. Glaciol., 7, Odamaki, M., Oikawa, K., Masuyama, A. and Namiki, S. (1999): Tidal observation results around Syowa Station, Antarctica, paper presented at the 19th NIPR Symposium on Antarctic Geosciences, Tokyo, October 14-15, 1999 (abstract only in Japanese). Aoki, S., Ozawa, T., Doi, K. and Shibuya, K. (2000): GPS observation of the sea level variation in Lutzow-Holm Bay, Antarctica. Geophys. Res. Lett., 27, Aoki, S., Shibuya, K., Masuyama, A., Ozawa, T. and Doi, K. (2001 accepted): Seasonal variations of sea level and bottom pressure detected by GPS and pressure gauge in Lutzow-Holm Bay, Antarctica. J. Oceanogr.

5 5 Syowa Station --- JODC tide catalog Faraday / Vernadsky Station --- ACCLAIM programme Mawson, Davis, Casey Station Cf GLOSShttp://www.pol.ac.uk/psmsl/programmes/gloss.info.html CSR Global mean sea level results Accessible Sea Level Variation Time–Series Data via Internet

6 6 Long Period Sea Level Variations at Faraday / Vernadsky Station

7 7 (a)Tide Gauge Observatories (b)Space Geodesy Observatories

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