- Dataset Discovery
- Citing Our Data
- User Resources
- User Services
For Producers typified within the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, the Inception Phase proceeds in two stages. At the first stage, NASA accepts the Principal Investigator’s (PI’s) proposal to develop a new product or suite of products and NASA assigns the product suite to the LP DAAC. In the second stage, the proposed work begins and the PI becomes the Producer of a new product. Optimally, LP DAAC Data Scientists are informally embedded with the proposal team early in the first stage. Early involvement allows the PI to better benefit from LP DAAC knowledge of the at-large user community, and allows the LP DAAC to support the PI in writing the Data Management Plan generally required after proposal acceptance. By the second (production) stage, embedded LP DAAC Data Scientists are signed contributors to the Final Data Management Plan and lead the Product Assessment process required by NASA to allow new products to migrate to the Active Archive Phase.
In some cases, the product already exists and is assigned to the LP DAAC after production either is well underway or has been completed. This is often true for Community Offerings and legacy products that have been recommended by the science community for active management or long-term preservation. The development of management plans for such products is treated on a case-by-case basis, depending on existing documentation and descriptions of data such as metadata quality and availability, Algorithm Theoretical Basis Documents (ATBDs), algorithm code, and ancillary production data.
To the extent practical, LP DAAC Data Scientists are embedded in Producer teams at Inception to support the Producer in designing data and information products that can successfully move through the lifecycle to meet the preservation requirement. To direct this support, LP DAAC Data Scientists have synthesized this extensive list into an LP DAAC Collection Inception Checklist. The checklist can be used to both identify needed items and help facilitate application of standards.
For LP DAAC work breakdown purposes, the Inception Phase is subdivided into two stages: the Planning Stage and the Production Stage. A Planning Stage work breakdown structure (WBS) development guide is used by the DAAC Data Scientist and Producer to lay the initial groundwork during the Planning Stage to ensure critical items on the LP DAAC Collection Inception Checklist are planned for development in the Production Stage because they are essential for downstream support. The Planning Stage is initiated following NASA’s assignment of the product suite to the LP DAAC.
A Production Stage WBS development guide is used by the DAAC Data Scientist and Producer to liaison to the science community, support production, and plan transition of products to the LP DAAC. The DAAC Data Scientist derives many requirements for migration and preservation activities from workflows to produce artifacts needed by NASA approval authorities. The NASA Data Template is a key work instruction with necessary workflows provided by ESDIS Science Operations Office (SOO) for Product Developers, DAACs and ESDIS-SOO, and Science Community Participants.
Working closely with the Producer, LP DAAC Data Scientists focus on the organization of metadata used to describe the data and information products to begin the process to formulate object containers known as Earth Science Data Types (ESDTs). As part of the migration process, ESDTs are compiled into the EOSDIS Core System (ECS) and delivered to the LP DAAC to take maximum advantage of Active Archive services. Ultimately, ESDTs enable standardized interfaces between production systems and the Active Archive. Because of the adherence to standards common to both NASA ESDS and EROS, the interface between the Active and Long-Term Archives becomes cost-effective to implement because of the Producer’s use of standards at the beginning of the product lifecycle.
LP DAAC Data Scientists also contribute to the production team by confirming the Producers’ expectations as to what standards for product content and format best serve the LP science community. These standards are well established and all stakeholders are recommended to adopt them to take advantage of the many tools and services in existence used to manipulate products in research efforts.
“Producer” is a generic term uses in the Product Lifecycle Plan. The term allows for considerable variance as to what data and information products are available and require preservation through LP DAAC and EROS resources. For example, new Producer products may utilize existing sensors that have artifacts preserved in other efforts, reducing instrument-related preservation to simple acknowledgement of archival products servicing the original Producer. In other cases, legacy products may not adhere to Earth Observing Systems Data and Information System (EOSDIS) standards for content and formatting, so preservation activities may necessitate substantial effort to create tools to transform content and formatting to ensure compatibility with EOSDIS and EROS systems.
|Producer Group||Producer Characteristics||Example|
|ESDS program assigned||