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The image shows summer phytoplankton blooms in the Norwegian and Barents Seas. Dark blue and green colors represent Chlorophyll concentration, and white colors represent cloud coverage. Image captured by the Aqua-MODIS sensor on July 13, 2023. A text overlay reads, OPeNDAP in the Cloud.

The image shows summer phytoplankton blooms in the Norwegian and Barents Seas. Dark blue and green colors represent chlorophyll concentration, and white colors represent cloud coverage. Image captured by the Aqua-MODIS instrument on July 13, 2023.

In this webinar, we will introduce the Open-source Project for a Network Data Access Protocol (OPeNDAP ) and showcase recent advancements that enable performant, cloud-optimized access to NASA’s archival and hierarchical scientific datasets—specifically those in HDF5, HDF4, and HDF4-EOS2 formats. We will demonstrate how OPeNDAP supports efficient data access in the cloud through the use of DMR++ sidecar files, which provide metadata to enable selective and scalable access to data. 

During this event our speakers will feature reproducible, interactive, and science-focused use case examples that highlight two complementary approaches for accessing NASA Earth data in the cloud:

  • Subsetting and retrieving data via OPeNDAP's Hyrax data server
  • Direct cloud access using DMR++ sidecar files for efficient S3-based workflows.

Through these examples, we aim to show how OPeNDAP in the cloud can empower exploratory scientific analysis and accelerate discovery using open NASA datasets.
 

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