A Distributed Data Management System to Support Arctic Geology and Geophysics: A Resource for Extended EEZ Claims

2005 American Geophysical Union Fall Meeting

Poster T13D-0497 - Continental Margins: Geodynamic Constraints and Implications for the Legal Continental Shelf Under UNCLOS

MH Edwards

Hawai'i Mapping Research Group

UH-SOEST, Honolulu, HI 96822

margo@soest.hawaii.edu

PJ Johnson

Hawai'i Mapping Research Group

DJ Wright

Dept of Geosciences, Oregon State Univ

Corvallis, OR 97331-5506

dawn@dusk.geo.orst.edu

M Dailey

Dept of Geosciences, Oregon State Univ

Over the past decade there has been an explosion in the volume of geophysical data collected in the Arctic Basin. Prior to the 1990's geophysical data for the Arctic Ocean largely consisted of a few scattered multi-channel seismic lines, single-beam bathymetric profiles and comprehensive aeromagnetic and aerogravity datasets. The deployment of the nuclear-powered submarines in the arctic during the 1993-1999 Science Ice Exercises (SCICEX) increased the quantity of available arctic geophysical data by several orders of magnitude, providing the first comprehensive bathymetric and sidescan surveys of most of the topographic highs in the Arctic Basin including the Lomonosov and Gakkel Ridges and large portions of the Alaska margin and Chukchi Borderland. Many of these ridges figure prominently in the claims of arctic nations to extend their exclusive economic zones into the Arctic Ocean. Since 2000, surveys conducted on icebreakers have continued to rapid expansion of arctic geophysical datasets. The collection of geophysical data collected during SCICEX and subsequent icebreaker cruises includes swath bathymetry, sidescan and amplitude data, gravity subbottom chirp profiles and this year, multi-channel seismic data.

We are currently developing an online data archive that combines a data repository with a web-based archive-linking infrastructure to produce a distributed Data Management System (DMS) named the Arctic Archive for Geophysical Research: Unlocking Undersea Knowledge (AAGRUUK). This DMS promotes the ability to locate specific types of data as well as diverse types of data for specific locations. It provides access to derived products plus processed and, where feasible, raw data. AAGRUUK also provides the ability to integrate diverse types of data from distributed databases and archives, access to metadata, standardized approaches for incorporating newly acquired data, and contact and reference information for datasets in the archive. The AAGRUUK datasets are already yielding valuable new insights into the formation and evolution of the Arctic Basin, and they should serve as a useful resource for responding to the criteria detailed in Article 76 and the Scientific and Technical Guidelines published by CLCS in 1999. Examples of the integrated geophysical datasets for margins and ridges in the Arctic Ocean will be presented in addition to detailed information about accessing and contributing to AAGRUUK.

0910 Data processing
3094 Instruments and techniques
4294 Instruments and techniques
Ocean Sciences [OS]
Earth and Space Informatics [IN]

JPG image of poster

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