Abstract:
The THREDDS (Thematic Realtime Environmental Distributed Data Services) Catalog Crawler crawls DAP servers that also support THREDDS catalogs (e.g., TDS, Hyrax, and likely others) and automatically builds either EML Ecological Markup Language) or NCML (Netcdf Markup Language) metadata. In this software, EML is used to describe an entire dataset while NCML is used to build aggregations (logical datasets that consist of many URLs). The software was written by OPeNDAP as one part of it's participation in the REAP (Real-time Analytical Pipelines) project (NSF Grant #0619060).
Description:
The OPeNDAP Data Access Protocol (DAP) is a protocol for requesting and transporting data across the web. DAP 2.0 uses HTTP to frame the requests and responses.
