- Dataset Discovery
- Citing Our Data
- User Resources
- User Services
In the Active Archive Phase, the LP DAAC Data Scientists bridge the Inception Phase to the Long-Term Archive Phase. LP DAAC Data Scientist have developed an Active Archive Phase WBS development guide to direct the execution of data and information products migration from Producers to the LP DAAC. At the initiation of the phase, the LP DAAC receives authorization to migrate approved products and services from the Producer into the Active Archive. Development of the request for authorization materials (NASA Data Template) begins early in the Inception Phase but is completed after production begins to provide products for assessment by the LP DAAC Data Scientist, the LP DAAC User Working Group, and ESDIS.
Once approval to migrate is received, the LP DAAC sets up and operates core system interfaces needed to acquire and ingest data and information products from the Producer as well as to enable tools and services for discovery and access by the at-large LP science community. To enable core system interfaces, the LP DAAC Data Scientist creates new ESDTs for each collection to migrate from the Producer. ESDTs are passed to the ECS maintenance team for review and compilation. The compiled ESDT descriptor files are added to the core systems Dynamic Link Library (DLL), enabling services (such as ingest, search, and archive) for the new product. As part of the process, the LP DAAC Data Scientist works with the Producer to select one of many available “ingest methods” used to pull or push products into the Active Archive. The LP DAAC Data Scientist acquires some representative samples of the new product and examines the implementation in a test mode of the core system. Corrections are made and the process is repeated until all testing is successful.
Once testing is complete, the ESDT is released to the LP DAAC as a Test Executable or in the next formal delivery of ECS. The LP DAAC Data Scientist creates a timeline to enable ingest interfaces and begins the process to migrate data from the production system to the Active Archive. At a mutually agreed time, additional functions are enabled in the core system so the new products are eligible for extended services such as publication in community-wide user client systems and ultimately export to other compatible systems.
Downstream in this phase, the LP DAAC Data Scientist receives authorization to migrate approved products to an EROS project for long-term archive. The Migration includes any additional work to seek NSLRSDA acceptance for the new products to be permanently archived at USGS. LP DAAC Scientists have developed an Active Archive Phase WBS guide for the approval to transition data and information products to the Long-Term Archive to direct activities during this process. The actual work to lead LP DAAC operations to migrate the new products to the Long-Term Archive is included in the Long-Term Archive Phase.