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Product Description Document

The Product Description Document provides an overview of the product suites and gives a top-level description of the primary data and metadata layers in each Level 2 / Level 3 product generated by the OPERA Science Data System.

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Product Specification Documents and Product Samples

The Product Specification Documents provide the detailed information about the contents and specifications of a given OPERA product. Specifically, this includes the structure and specifics of the product layers and all product metadata.

These documents together with sample products and basic user visualization guides are provided for each OPERA product suite below.

  • DSWx Product Suite
  • DIST Product Suite

OPERA is developing three Level 3 products that respond to the needs identified by various federal agencies during the 2018 cycle (a.k.a. Cycle 2) of the Satellite Needs Working Group development activities, namely:

  1. a near-global Dynamic Surface Water Extent (DSWx) product suite;
  2. a near-global land-surface change (DIST) product suite;
  3. a North America land-surface deformation (DISP) product suite.

In addition, OPERA is producing two intermediate Level 2 data products:

  1. a North America land coregistered single-look complex (CSLC) product suite;
  2. a near-global land-surface radiometric terrain-corrected (RTC) product.

Near-global corresponds to all land-masses excluding Antarctica. North America corresponds to the United States (USA) and US Territories, Canada within 200 km of the US border, and all mainland countries from the southern US border up to and including Panama.

The image above is an example of DSWx by Dr. John Jones compared with NAIP data (copyright 2021)

OPERA is releasing these products according to a staggered schedule as follows:

The following table provides a summary of key product characteristics including the spatial coverage and resolution, the start of the product record, and the temporal sampling of the sensors used as input for the products:

Summary of OPERA Product characteristics. * = United States (USA) and US Territories, Canada within 200 km of the US border, and all mainland countries from the southern US border up to and including Panama. ** = all land-masses excluding Antarctica. ***This indicates the beginning of the product record, not the beginning of OPERA processing assuming nominal sensor availability.

CL#21-6388

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