CEOS Analysis Ready Data

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CEOS ANALYSIS READY DATA

CEOS Analysis Ready Data (CEOS-ARD) are satellite data that have been processed to a minimum set of requirements and organized into a form that allows immediate analysis with a minimum of additional user effort and interoperability both through time and with other datasets.

Information for:

Data Producers

Data Distributors

Data Users

CEOS-ARD Framework

Many satellite data users lack the expertise, infrastructure and internet bandwidth to efficiently and effectively access, preprocess, and utilize the growing volume of space-based data for local, regional, and national decision-making. Furthermore, even sophisticated users of EO data typically invest a large proportion of their effort into data preparation. This is a major barrier to full and successful utilization of space-based data, and threatens the success of major global and regional initiatives supported by the Committee on Earth Observation Satellites (CEOS). As data volumes grow, this barrier is becoming more significant for all users.

Countries and international organizations have expressed a desire for support from CEOS to facilitate access to and processing of satellite data into CEOS Analysis Ready Data (CEOS-ARD) products. Systematic and regular provision of CEOS-ARD will greatly reduce the burden on global satellite data users.

The CEOS-ARD Governance Framework covers:

Definition

The definition of CEOS-ARD is not exclusive or prescriptive. The definition of CEOS-ARD reflects the attributes of fundamental measurement products for the majority of global remote sensing users with land imaging applications, and are the minimum level required to support time series analysis and data interoperability.

Product Family Specs

Detail specific 'Threshold' and 'Goal' requirements for:

– General Metadata
– Per-pixel Metadata
– Radiometric and Atmospheric Corrections
– Geometric Corrections

A Product Family Specification Template has been developed to provide a starting point for future PFS, to ensure commonality in layout, general structure, interpretation and approach. It provides a foundation and common suite of assessment factors for all PFS.

Product Assessments

Assess how well the specific product complies with each of the metadata and calibration criteria in the Product Family Specification. Includes a description of ‘how’ it complies.

The CEOS Working Group on Calibration & Validation (WGCV) has defined formal processes for how these assessments will be carried out, including the peer reviews that will be undertaken by the WGCV.

Guide to CEOS-ARD Self-Assessments

Current Product Family Specifications

PFS	Type	Version	Download	Metadata Spec	Last Updated
Surface Reflectance	Optical	5.0.1	PDF \| Word	–	6 December 2023
Surface Temperature	Optical	5.0	PDF \| Word	–	8 June 2020
Aquatic Reflectance	Optical	1.0	PDF \| Word	–	23 February 2022
Nighttime Lights Surface Radiance	Optical	1.0	PDF \| Word	–	2 October 2022
Combined CEOS-ARD for Synthetic Aperture Radar (Normalised Radar Backscatter [NRB], Polarimetric Radar [POL], Ocean Radar Backscatter [ORB], Geocoded Single-Look Complex [GSLC])	Radar	1.1	PDF \| Word	XLSX	23 July 2024

In-progress Product Family Specifications

PFS	Type	ETA
Interferometric Radar (INSAR)	Radar	2024
LiDAR Terrain and Canopy Top Height	Optical	2023

CEOS Analysis-Ready Datasets

The following table summarises all of the satellite EO datasets that have been assessed as CEOS Analysis Ready Data (CEOS-ARD). DOI links are provided for access, along with links to further information, sample products, and the completed CEOS-ARD self-assessment and peer review outcome documents.

Product	CEOS-ARD Type	PFS Version	Agency	Mission / Instrument(s)	Threshold Specification	Goal Specification	Access	Info	Self Assessment	Peer Review	Sample Products
ALOS-2 PALSAR-2 Global Mosaics (RTC)	SAR-NRB	v1.0	JAXA	ALOS-2 PALSAR-2	100%	Not assessed	Link	Link	DOC	PDF	Link
ALOS-2 PALSAR-2 25m & 50m ScanSAR NRB	SAR-NRB	v1.0	JAXA	ALOS-2 PALSAR-2	100%	Not assessed	Link	Link	DOC	25m, 50m	Link
EnMAP	Surface Reflectance	v5.0	DLR	EnMAP	100%	Not assessed	TBA	Link	PDF	PDF	Link
Landsat Collection 2	Surface Reflectance	v5.0	USGS	Landsat 4, 5, 7, 8, 9	100%	81%	Landsat 4-5, 7, 8-9	Link	PDF	PDF	Link
Landsat Collection 2	Surface Temperature	v5.0	USGS	Landsat 4, 5, 7, 8, 9	100%	83%	Landsat 4-5, 7, 8-9	Link	PDF	PDF	Link
Landsat Collection 2 U.S. ARD	Surface Reflectance	v5.0	USGS	Landsat 4, 5, 7, 8, 9	100%	Not assessed	Link	Link	PDF	PDF	Link
Landsat Collection 2 U.S. ARD	Surface Temperature	v5.0	USGS	Landsat 4, 5, 7, 8, 9	100%	Not assessed	Link	Link	PDF	PDF	Link
L8 SR (Aerospace Information Research Institute)	Surface Reflectance	v5.0	AIR-CAS (China)	Landsat 8	100%	Not assessed	Link	Link	PDF	PDF	Link
L8 ST (Aerospace Information Research Institute)	Surface Temperature	v5.0	AIR-CAS (China)	Landsat 8	100%	Not assessed	Link	Link	PDF	PDF	Link
NovaSAR-1 RTC	NRB	v5.5	CSIRO	NovaSAR-1	100%	Not assessed	Link	Link	ZIP	ZIP	See self-assessment docs
PROBA-V L3 (0.1/0.333/1 km) TOC	Surface Reflectance	v5.0	VITO / ESA	PROBA-V	100%	Not assessed	Link	Link	PDF	PDF	Link
RISAT-1A (EOS-04) NRB	SAR-NRB	v1.0	ISRO	RISAT-1A (EOS-04)	100%	Not assessed	Link	Link	DOC	ZIP	TBA
Sentinel-1 RTC	NRB	v5.5	Sinergise & Digital Earth Africa	Sentinel-1 (A, B)	100%	Not assessed	Link	Link	PDF	PDF	Link
Sentinel-2 Level-2A	Surface Reflectance	v5.0	ESA	Sentinel-2A, 2B	100%	Not assessed	Link	Link	PDF	PDF	Link

Under Peer Review

Product	CEOS-ARD Type	PFS Version	Agency	Mission / Instrument(s)	Access (DOI)	Info	Self Assessment	Peer Review	Sample Products
DESIS L2A	Surface Reflectance	v5.0	DLR	DESIS-on-ISS	TBA	TBA	TBA	TBA	TBA
Gaofen-1/6 SR	Surface Reflectance	v5.0	AIR-CAS (China)	Gaofen-1	TBA	TBA	TBA	TBA	TBA
Opera RTC Sentinel-1	NRB	v5.5	NASA/JPL	Sentinel-1 (A, B)	TBA	Link	PDF	TBA	Link
Catalyst/PCI Sentinel-1 NRB	SAR-NRB	v1.1	Catalyst/PCI	Sentinel-1 (A, B)	TBA	TBA	DOC	TBA	TBA
RISAT-1A (EOS-04) NRB India Mosaic	SAR-NRB	v1.1	ISRO	RISAT-1A (EOS-04)	TBA	TBA	PDF	TBA	TBA

Under Development / Assessment

Product	CEOS-ARD Type	PFS Version	Agency	Mission / Instrument(s)	Access (DOI)	Info	Self Assessment	Peer Review	Sample Products
AVHRR LST	Surface Temperature	v5.0	DLR	AVHRR/1, /2, /3	TBA	TBA	TBA	TBA	TBA
EnMAP	Aquatic Reflectance	v1.0	DLR	EnMAP	TBA	TBA	TBA	TBA	TBA
ENVISAT NRB	SAR-NRB	v1.0	ESA	Envisat	TBA	TBA	TBA	TBA	TBA
Envisat MERIS	Surface Reflectance	v5.0	ESA	Envisat	TBA	TBA	TBA	TBA	TBA
ERS ATSR	Surface Reflectance	v5.0	ESA	ERS-1, ERS-2	TBA	TBA	TBA	TBA	TBA
ERS ATSR	Surface Temperature	v5.0	ESA	ERS-1, ERS-2	TBA	TBA	TBA	TBA	TBA
ERS-1/2 NRB	SAR-NRB	v1.0	ESA	ERS-1, ERS-2	TBA	TBA	TBA	TBA	TBA
Fused S-2 & L-8/9 (Level-2F)	Surface Reflectance	v5.0	ESA	Sentinel-2A, 2B; Landsat 8, 9	TBA	TBA	TBA	TBA	TBA
Harmonised S-2 & L-8/9 (Level-2H)	Surface Reflectance	v5.0	ESA	Sentinel-2A, 2B; Landsat 8, 9	TBA	TBA	TBA	TBA	TBA
KOMPSAT-3/3A	Surface Reflectance	v5.0	KARI	KOMPSAT-3, 3A	TBA	TBA	TBA	TBA	TBA
KOMPSAT-5 NRB	SAR-NRB	v1.0	KARI	KOMPSAT-5	TBA	TBA	TBA	TBA	TBA
Landsat L2 Provisional Aquatic Reflectance	Aquatic Reflectance	v1.0	USGS	Landsat 8, 9	TBA	Link	TBA	TBA	Link
NISAR NRB / GCOV / GSLC / GUNW	SAR	v1.0	ISRO	NISAR	TBA	TBA	TBA	TBA	TBA
NovaSAR-1 NRB	SAR-NRB	v1.0	ISRO	NovaSAR-1	TBA	TBA	TBA	TBA	TBA
Opera GSLC S1	SAR	v1.0	NASA/JPL	Sentinel-1 (A, B)	TBA	TBA	TBA	TBA	TBA
Opera NISAR RTC & GSLC	SAR	v1.0	NASA/JPL	NISAR	TBA	TBA	TBA	TBA	TBA
Radarsat-1	SAR-NRB	v1.0	CSA	Radarsat-1	TBA	TBA	TBA	TBA	TBA
Radarsat-2	SAR-NRB	v1.0	CSA	Radarsat-2	TBA	TBA	TBA	TBA	TBA
Radarsat Constellation Mission	SAR-NRB	v1.0	CSA	RCM	TBA	TBA	TBA	TBA	TBA
Resourcesat-2/2A	Surface Reflectance	v5.0	ISRO	Resourcesat-2, 2A	TBA	Link	Ongoing	TBA	TBA
RISAT-1A/1B POL	SAR-POL	v1.0	ISRO	RISAT-1A, 1B	TBA	TBA	TBA	TBA	TBA
SAOCOM	SAR-NRB	v1.0	CONAE	SAOCOM (1A, 1B)	TBA	Link	TBA	TBA	TBA
Sentinel-1 NRB	SAR-NRB	v1.0	ESA	Sentinel-1 (A, B)	TBA	Link	TBA	TBA	TBA
Sentinel-1 ORB	SAR-ORB	v1.0	ESA	Sentinel-1 (A, B)	TBA	TBA	TBA	TBA	TBA
Sentinel-2 L2A/B AR Layer	Aquatic Reflectance	v1.0	ESA	Sentinel-2A, 2B	TBA	TBA	TBA	TBA	TBA
Sentinel-3 SYN SDR Product	Surface Reflectance	v5.0	ESA	Sentinel-3A, 3B	TBA	TBA	TBA	TBA	TBA
SPOT 1-7 Surface Reflectance	Surface Reflectance	v5.0	SANSA	SPOT 1, 2, 3, 4, 5, 6, 7	TBA	TBA	TBA	TBA	TBA
THEOS-1 Surface Reflectance	Surface Reflectance	v5.0	GISTDA	THEOS-1	TBA	TBA	TBA	TBA	TBA

Future

Product	CEOS-ARD Type	PFS Version	Agency	Mission / Instrument(s)	Access (DOI)	Info	Self Assessment	Peer Review	Sample Products
CHIME L2A	Surface Reflectance	v5.0	ESA	CHIME	TBA	TBA	TBA	TBA	TBA
CHIME L2H/L2F	Surface Reflectance	v5.0	ESA	CHIME	TBA	TBA	TBA	TBA	TBA
LSTM L2A SR	Surface Reflectance	v5.0	ESA	LSTM	TBA	TBA	TBA	TBA	TBA
LSTM L2A ST	Surface Temperature	v5.0	ESA	LSTM	TBA	TBA	TBA	TBA	TBA
LSTM L2H/L2F SR	Surface Reflectance	v5.0	ESA	LSTM	TBA	TBA	TBA	TBA	TBA
LSTM L2H/L2F ST	Surface Temperature	v5.0	ESA	LSTM	TBA	TBA	TBA	TBA	TBA
ROSE-L	SAR-NRB	v1.0	ESA	ROSE-L	TBA	TBA	TBA	TBA	TBA

Background Image #1 Credit: NASA Earth Observatory: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team

Background Image #2 Credit: NASA Earth Observatory images by Joshua Stevens, using Landsat data from the U.S. Geological Survey.