GRACE (-FO) data discovery, access and download from NASA Earthdata Cloud

PO.DAAC has pioneered data migration to the NASA Earthdata Cloud (Amazon Web Service – AWS) beginning in January 2021. Today, the entire active data collections archived at PO.DAAC have been successfully migrated. The migration effort includes not just the datasets, but also the access tools/services and documentation, together forming the new PO.DAAC-in-Cloud (POCLOUD) data ecosystem, which brings challenges but also opportunities to the users with many new capabilities. In the new cloud paradigm, the traditional PO.DAAC data search portal will continue to serve as the main data discovery platform for its datasets. In addition, NASA has designed an Earthdata search portal for discovering the earth science datasets and granules across all 12 NASA data centers. To access the POCLOUD data, most of the on-premise tools and services are (will be) made available except PO.DAAC Drive, which will be retired after the cloud data migration. Currently, the data direct download (https), AWS S3 buckets access, OPeNDAP, the Level 2 subsetting tool HiTIDE, and the visualization tool SOTO have been added to POCLOUD datasets. A collection of Harmony APIs, which are a common family of services for discovering , accessing and transforming the Earth observation data in the cloud from different NASA data centers, are also made available to most POCLOUD data, including services for subsetting, Zarr reformatting, and regridding. Users are encouraged to find helpful tutorials, demos and recipes from PO.DAAC Cloud Data page, such as, the powerful and efficient podaac-data-subscriber script, tutorials on OPeNDAP, Amazon S3 bucket direct access, and many more cloud data applications.