OPERA Products

Product Validation Document

The Product Validation Document outlines the scopes, objectives, and timelines associated with the validation of each OPERA product.

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Detailed information (product specification, data access, product samples, white papers, product quickguides, etc) per product suite can be found below:

OPERA products are freely available to the broader community though the NASA archives. The following table provides the release schedule status of these products:

Products	Product Schedule Status
DSWx-HLS	In production
DIST-HLS	In production
RTC-S1	In production
CSLC-S1	In production
DSWx-S1	In Production
DISP-S1	In Production
TROPO	In Production
DSWx-NI	June 2026
CSLC-NI	TBD
DISP-NI	September 2026
DIST-S1	March 2026
VLM-S1	April 2028
VLM-NI	April 2028

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 U.S. Territories, Canada within 200 km of the US border, and all mainland countries from the southern U.S. 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.
Product Name	Coverage	Sensor	Spatial Resolution	Product Record Start***
Coregistered Single-look Complex from Sentinel-1 (CSLC-S1)	North America*	Sentinel-1 A/B/C	~15 m x 5 m (azimuth x range)	May 2016 onwards
Coregistered Single-look Complex from NISAR (CSLC-NI)	North America*	NISAR	~5 m x 3.1/6.25 m (azimuth x range)	TBD
Radiometric Terrain Corrected (RTC) SAR Backscatter	near-global***	Sentinel-1 A/B/C	30 m	January 2022 onwards
Surface Displacement from Sentinel-1 (DISP-S1)	North America*	Sentinel-1 A/B/C	30 m or ~15 m x 5 m (azimuth x range)	May 2016 onwards
Surface Displacement from NISAR (DISP-NI)	North America*	NISAR	30 m or ~5 m x 3.1/6.25 m (azimuth x range)	Start of NISAR validated record
Troposphere Zenith Radar Delays (TROPO)	global	sensor agnostic	0.07° x 0.07°	July 2016 onwards
Surface Disturbance from from Harmonized Landsat Sentinel-2 (DIST-HLS)	near-global***	Landsat-8/9 & Sentinel-2 A/B/C (HLS)	30 m	January 2023 onwards
Surface Disturbance from Sentinel-1 (DIST-S1)	near-global***	Sentinel-1 A/B/C	30 m	March 2026 onwards
Dynamic Surface Water Extent from Harmonized Landsat Sentinel-2 (DSWx-HLS)	near-global***	Landsat-8 & Sentinel-2 A/B/C (HLS)	30 m	April 2023 onwards
Dynamic Surface Water Extent from Sentinel-1 (DSWx-S1)	near-global***	Sentinel-1 A/B/C	30 m	September 2024 onwards
Dynamic Surface Water Extent from NISAR (DSWx-NI)	near-global***	NISAR	30 m	Start of NISAR validated record
Vertical Land Motion from Sentinel-1 (VLM-S1)	North America*	Sentinel-1 A/B/C	100 m (TBD)	2019 onwards
Vertical Land Motion from NISAR (VLM-NI)	North America*	NISAR	100 m (TBD)	Start of NISAR validated record

Summary of OPERA Product characteristics. * = United States (USA) and U.S. Territories, Canada within 200 km of the US border, and all mainland countries from the southern U.S. 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.

Product Description Document

The Product Description Document provides a high-level overview of the product suites while formulation of products is ongoing. For products that are in production, refer to the Product Specification section below for current information on product formatting and content.

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