This note gives a high-level overview of the EARTHSEQUENCING effort to provide a self-consistent database of ocean drilling data and drill-core meta data.
As part of the EARTHSEQUENCING project, we are developing a set of databases that facilitate the processing, analysis and linking of various ocean drilling related data and information.
The main aim is to make it possible to quickly and consistently obtain data that are otherwise slow to access, and scattered across various existing databases.
The databases contain
Eventually, further data, for example biostratigraphic occurrences, magnetostratigraphy, age models etc. can be linked into this structure.Here we give an overview about the Scientific Ocean Drilling core information part of the database, not the specific scientific measurements themselves (for that, see for example database overview).
Most data come from archived DSDP data, the old ODP Janus database, and the current IODP LIMS database, merged into a consistent format.
The database system is not directly accessible externally due to security and "denial of service" considerations, but hooks are provided for human and machine readable access via web endpoints.
The databases are contained in a relational and filestore database system (Couchbase, Minio and several others). Public access is via an intermediary REST endpoint (Loopback).
Currently (December 2019), the database contains information about all DSDP/ODP/IODP expeditions conducted on the Glomar Challenger or Joides Resolution upto Expedition 376 (post-moratorium). Eventually MSP and Chikyu data might be added.
In detail, the database entities consist of
For the actual data storage, we use the two entities
There are various ways to access these data, but as mentioned before, direct access is not available outside the private network for security reasons.
Programmatic access is available via REST endpoints, for example
A full list can be seen here:
A software for macOS only (sorry!) to view an offline snapshot of the database is available here:
Prior to running, this requires the installation of a database file into "~/Library/Application Support/" by unzipping the ~1GB file stored here: DATABASE.
Example:
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