McMurdo Dry Valleys Metadata System

The McMurdo Dry Valleys LTER Metadata Management System Summary

The McMurdo Dry Valleys LTER site (MCM) their data and metadata in a relational database. The database is the center piece of the MCM's site metadata management system. Scripts allow users to query, view and download metadata and data. Rich metadata is offered both as raw EML and processed through XSLT stylesheets to make for a pleasant read.

LTER sites with similar management systems

  • some similarities : BNZ, SEV, HBR
  • potential synergies : PAL, CCE, MCR

The McMurdo Dry Valleys Creek Detailed

At MCM, a customized Oracle relational database stores all related info to datasets. This database enables tracking of changes in data and metadata and allows data sets to be queried, browsed and be viewed using procedures. Database enables provide derived data, with unit transformations, or combining measurements. Implementation of chain of custody forms which have facilitated the users the task of entering and curating their data. Some of the data are in raw text files and other data are stored in a database: it depends of the data category, whether watershed studies, climate studies or more point studies. MCM offers metadata both in the raw EML format, or processed to make up for readability. Currently, MCM is implementing plans to improve the management of their GIS data, including generating EML metadata. An interactive online map using ESRI's ArcGIS Server technology was implemented on MCM's website. This map is JSP based, and pulls layers directly from our Oracle database. The map also serves as a data portal - clicking on certain features returns actual data and metadata.

EML Status:

  • Completion: All metadata is available in EML.
  • Richness : All EML documents are very rich, to the attribute level (levels 5)
  • QA/QC : There are mechanisms to ensure the quality of the metadata and data ??