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:

producersData Producers

distributorsData Distributors

usersData 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) Access Info Self Assessment Peer Review Sample Products Approval date
ALOS-2 PALSAR-2 Global Mosaics (RTC) SAR-NRB v1.0 JAXA ALOS-2 PALSAR-2 Link Link DOC PDF Link 17 Apr 2024
ALOS-2 PALSAR-2 25m & 50m ScanSAR NRB SAR-NRB v1.0 JAXA ALOS-2 PALSAR-2 Link Link DOC 25m, 50m Link 17 Apr 2024
Catalyst Sentinel-1 RTC SAR-NRB v1.1 Catalyst/PCI Sentinel-1
(A, B)
TBA TBA DOC PDF TBA 17 Oct 2024
EnMAP Surface Reflectance v5.0 DLR EnMAP TBA Link PDF PDF Link 22 Jan 2024
Landsat Collection 2 Surface Reflectance v5.0 USGS Landsat 4, 5, 7, 8, 9 Landsat 4-5, 7, 8-9 Link PDF PDF Link 4 Jun 2021
Landsat Collection 2 Surface Temperature v5.0 USGS Landsat 4, 5, 7, 8, 9 Landsat 4-5, 7, 8-9 Link PDF PDF Link 4 Jun 2021
Landsat Collection 2 U.S. ARD Surface Reflectance v5.0 USGS Landsat 4, 5, 7, 8, 9 Link Link PDF PDF Link 23 May 2022
Landsat Collection 2 U.S. ARD Surface Temperature v5.0 USGS Landsat 4, 5, 7, 8, 9 Link Link PDF PDF Link 23 May 2022
L8 SR (Aerospace Information Research Institute) Surface Reflectance v5.0 AIR-CAS Landsat 8 Link Link PDF PDF Link 6 Dec 2023
L8 ST (Aerospace Information Research Institute) Surface Temperature v5.0 AIR-CAS Landsat 8 Link Link PDF PDF Link 6 Dec 2023
NovaSAR-1 RTC NRB v5.5 CSIRO NovaSAR-1 Link Link ZIP ZIP See self-assessment docs 5 Oct 2023
Opera RTC Sentinel-1 NRB v5.5 NASA/JPL Sentinel-1 (A, B) TBA TBA ZIP ZIP TBA 22 Oct 2024
PROBA-V L3 (0.1/0.333/1 km) TOC Surface Reflectance v5.0 VITO / ESA PROBA-V Link Link PDF PDF Link 21 Mar 2023
RISAT-1A (EOS-04) NRB SAR-NRB v1.0 ISRO RISAT-1A (EOS-04) Link Link DOC ZIP TBA 2 Apr 2024
Sentinel-1 RTC NRB v5.5 Sinergise & Digital Earth Africa Sentinel-1
(A, B)
Link Link PDF PDF Link 20 May 2022
Sentinel-2 Level-2A Surface Reflectance v5.0 ESA Sentinel-2A, 2B Link Link PDF PDF Link 22 Jan 2022

Under Peer Review


Product CEOS-ARD Type PFS Version Agency/Organisation Mission / Instrument(s)
Catalyst SPOT-5 SR Surface Reflectance v5.0.1 Catalyst/PCI SPOT-5
DESIS L2A Surface Reflectance v5.0 DLR DESIS-on-ISS
Gaofen-1/6 SR Surface Reflectance v5.0 AIR-CAS (China) Gaofen-1
RISAT-1A (EOS-04) NRB India Mosaic SAR-NRB v1.1 ISRO RISAT-1A (EOS-04)

Under Development / Assessment


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

Future


Product CEOS-ARD Type Agency Mission / Instrument(s)
CHIME L2A Surface Reflectance ESA CHIME
CHIME L2H/L2F Surface Reflectance ESA CHIME
LSTM L2A SR Surface Reflectance ESA LSTM
LSTM L2A ST Surface Temperature ESA LSTM
LSTM L2H/L2F SR Surface Reflectance ESA LSTM
LSTM L2H/L2F ST Surface Temperature ESA LSTM
ROSE-L SAR-NRB ESA ROSE-L

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