THE COPERNICUS SPACE COMPONENT: Sentinels Data Products List

Transcription

1 esrin Via Galileo Galilei Casella Postale Frascati Italy T F THE COPERNICUS SPACE COMPONENT: Sentinels Data Products List Prepared by Copernicus Space Component Ground Segment team Reference COPE-GSEG-EOPG-PD Issue 1 Revision 1 Date of Issue 10/10/2014 Status Approved Distribution ESA Unclassified for Official Use

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3 vj EUMETSAT For this revision of the document, EUMETSAT approval relates to the Sentinel-3 mission. Reviewed by D. Provost, S-3 Project Manager Reviewed by M. Cohen, Associate Director for LEO Programmes Approved by Dat<& ly Date and Signature/ ^ ^ / ^ 7A\AS> Date and Signature C. Kaiser, Director of Programme Preparation & Development Approved by Date and Signature L. Mastroddi, Director of Operations and Services to Users Page 3/18

4 Reason for change Issue Revision Date Initial Issue of the document /09/2014 Revision after Eumetsat s comments plus minor /10/2014 refinements Issue 1 Revision 0 Reason for change Date Pages Paragraph(s) Document creation. Initial draft issued to Commission for structure review and comments. 05/09/2014 Issue 1 Revision 1 Reason for change Date Pages Paragraph(s) Added Eumetsat logo 10/10/14 All General Added Eumetsat approval page and ESA modified approval cycle Added reference to S3 Products Definition Document as applicable 10/10/14 2 Approval 10/10/ Added reference to CSC SRD for timeliness definition. 10/10/ Removed NRT/STC/NTC nomenclature and added reference to CSC SRD in the note, where the definition is provided 10/10/ Removed NRT/STC/NTC acronyms 10/10/ Definition of product geometry corrected for OLCI and SLSTR L1 products in Table and graphical representation Waveforms added in STM L2 products content in Table and graphical representation Clarification on S2 L2a processor running on S2 toolbox 10/10/ and 3 10/10/ and 3 10/10/14 p. 10 and Fig.2 2, 3 Added reference to Sentinel toolboxes 10/10/ Page 4/18

5 Table of contents 1 INTRODUCTION Document Scope and Objective Applicable documents List of acronyms Recall of Products Generation Concept User Products Documentation SENTINEL CORE USER PRODUCTS LIST PRODUCTS GRAPHICAL REPRESENTATION Page 5/18

6 1 INTRODUCTION 1.1 Document Scope and Objective The present document provides the list of the Sentinels products generated by the Copernicus Space Component (CSC) core ground segment for access by the Copernicus users. The intended readership is the European Commission as well as the Copernicus users. This first issue of the document lists the products that have been developed as part of the GMES Segments 1 & 2 and from the GMES Initial Operations programmatic phases and currently deployed in response to the EU-ESA GMES delegation agreement ([AD 1] ). Future revisions of the document will reflect evolutions of the Copernicus Space Component core products according to the change process described in [AD 1] and [AD 7] Notes: This document provides a comprehensive summary list of the product types described within the CSC System Requirements document [AD 2] and the CSC Infrastructure Architecture Document [AD 3] These documents shall take precedence in case of any conflicting or inconsistent information. The current version of this document fully covers Sentinel-1, Sentinel-2, Sentinel-3 and Sentinel-5P. Future revisions of the document will include details covering Sentinel-4, Sentinel-5 and Sentinel-6 to be elaborated jointly with EUMETSAT. Page 6/18

7 1.2 Applicable documents [AD 1] Agreement on the Implementation of the Space Component of Global Monitoring for Environment and Security (GMES) between the European Union and the European Space Agency concluded on 28 February 2008 as subsequently amended on 28 January 2009 and on 15 June 2011 [AD 2] GSC Systems Requirements Document. Ref. EOP-E/GSC-SRD-01 [AD 3] The GSC Infrastructure Architecture Document. Ref. GMES-GSEG-EOPG-AD [AD 4] GSC Operations Concept. Ref. GMES-GSEG-EOPG-PD [AD 5] Sentinel High Level Operations Plan (HLOP), 2003(1), Sept. 2013, Available: ons+plan/530fd d26-9e bf91b85 [AD 6] The CSC Data Access High Level Description, Ref. COPE-GSEG-EOPG-PD [AD 7] Agreement between the European Union, represented by the European Commission, and the European Space Agency on the Implementation of the Copernicus programme [AD 8] Sentinel-3 Payload Data Ground Segment Products Definition Document. Ref. GMES-S3GS-EOPG-TN , v1.1 and Ref. /EUM/LEO-SEN3/TEN/13/ v1a 1.3 List of acronyms CSC Copernicus Space Component EW Extra Wide Swath GRD Ground Range Detected HLOP High Level Operations Plan IW Interferometric Wide Swath LRM Low resolution Mode MSI Multi-Spectral Instrument OLCI Ocean and Land Colour Instrument PLRM Pseudo Low Resolution Mode SAFE Standard Archive Format for Europe SLC Single Look Complex SAR Synthetic Aperture Radar SLSTR Sea and Land Surface Temperature Radiometer SM Stripmap SRAL SAR Radar Altimeter STM Surface Topography Mission TOA Top of Atmosphere WV Wave Page 7/18

8 1.4 Recall of Products Generation Concept The Sentinel missions are dedicated to Copernicus. Their operations concept relies on systematic 1 data acquisition, processing and dissemination, as extensively described in [AD 3] and [AD 4] 2. The acquisition strategy can be summarized as follows: For Sentinel-1, given its limited instrument duty cycle, acquisitions are performed according to a mission background plan detailed in the High Level Operations Plan (HLOP), elaborated by ESA following users needs. An on-line version of the observation scenario is available for the public. For Sentinel-2, systematic acquisitions are performed between 56 S and 84 N over land, coastal areas as well as larger islands. For more details see the on-line description of the Sentinel-2 geographic coverage. For Sentinel-3, systematic acquisitions cover the whole globe. Details for the various instruments coverage are available on the web for SLSTR, OLCI and STM. For Sentinel-5P, systematic acquisitions over the whole globe are performed (details will be provided in future releases of the document). For Sentinel-4, systematic acquisition of Europe is performed from a geostationary orbit (details will be provided in future releases of the document). For Sentinel-5 and Sentinel-6, systematic acquistions cover the whole globe (details will be provided in future releases of the document). Regardless the observation strategy, the acquired data are automatically downlinked to the receiving stations and systematically processed to generate a set of pre-defined core products (Levels 0, 1 and 2). These core products are made available to the Copernicus users according to committed, well defined timelines ranging from near-real time to nontime-critical, available typically within 3 to 24 or 48 hours of being sensed by the satellite. Such products are listed in the following Sections. Note that additional, complementary products might be available as part of complementary infrastructure not part of the Copernicus Space Component core ground segment, like e.g. the Sentinel collaborative ground segments. However, such products are not part of the CSC baseline and therefore are not described in the present document. 1 The only exception is Sentinel-1 which can be tasked to support dedicated acquisitions over crisis areas in case of emergencies. 2 The nominal geographical coverage acquisition and data distribution scenarios are progressively achieved during the first months of the mission, according to pre-defined, mission-specific ramp-up scenarios. For each mission, data distribution schedules are made available to the public in due time at Page 8/18

9 1.5 User Products Documentation A complete Sentinel technical documentation set is made available for the users on the Sentinel On-line web site In particular, detailed products and formats descriptions are available in the Product Definition and in the Product format technical documents as referenced in [AD 3] and made available on-line in the on-line documents library. Interactive versions are available in the form of wikis on the same site as part of the Sentinel-1 Technical Guide, the Sentinel- 2 Technical Guide and the Sentinel-3 Technical Guide for OLCI, SLSTR, SYNERGY and STM. Summary descriptions of Sentinel Products are also available on-line from the Sentinel-1 User Guide, the Sentinel-2 User Guide and Sentinel-3 User Guide (for OLCI, SLSTR, SYNERGY and STM). Complete and detailed product handbooks are available from the web as: Sentinel-1 Product User Handbook, Sentinel-2 Product User Handbook, and Sentinel-3 Product User Handbook. Dedicated toolboxes, specifically developed by ESA, support users in handling the data products. Detailed information covering Sentinel-5 Precursor, Sentinel-4, Sentinel-5 and Sentinel-6 products will be progressively published in the Sentinel On-line web site in the future. 2 SENTINEL CORE USER PRODUCTS LIST The Table below provides a general overview of Sentinel core products for users, including a brief description of the products content and the threshold timeliness of availability to the Copernicus core users. The Table complements the general description provided in [AD 2] and [AD 3] by introducing an explicit entry for each product type. Page 9/18

10 User Product Type Category Product Type and/or Consolidation Level Product Content Timeliness for Copernicus Users 3 (from data downlink 4 ) L0 Sentinel-1 SAR L0 L0 Standard Product Stripmap Mode (SM) L0 Standard Product Interferometric Wide Swath Mode (IW) L0 Standard Product Extra Wide Swath mode (EW) Compressed unfocused SAR raw data. < 1 h for areas defined in [AD 5] < 24 h for all acquired data SM Single Look Complex (SLC) Sentinel-1 SAR L1 SLC IW SLC EW SLC Focused SAR complex data, geo-referenced, provided in slant-range geometry. < 1 h for areas defined in [AD 5] < 24 h for all systematic regional data as in [AD 5] Sentinel-1 SAR L1 SM Ground Range Detected (GRD) Full Resolution 3 Timelines depend on the use typology to be served. Sentinel core products are made available from the CSC ground segment infrastructure primarily to the Copernicus Services (with committed timelines), and to other user typologies with intended timelines, see [AD 6]. Timeliness definitions are available in [AD 2]. 4 Timeliness is referred here as the elapsed time after data downlink. For near real time production, timeliness after downlink is compliant with availability of user products at pick-up points (i.e. the user entry point for data access) within 3h from sensing. In case multicast or broadcast products dissemination are used, this dissemination timeliness starts from the product availability at pick- up point for the re-dissemination system. The timeliness is applying to any satellite downloaded data. Near real time products are available at the acquisition station pick-up point from a rolling archive sized for one month of data and at the PACs within 24h (see [AD 3] ). Page 10/18

11 GRD SM GRD High Resolution SM GRD Medium Resolution IW GRD High Resolution IM GRD Medium Resolution EW GRD High Resolution Focused SAR complex data detected, georeferenced, multilooked and projected to ground range geometry. < 1 h for areas defined in [AD 5] < 24 h for all systematic regional data defined in [AD 5] L1 Sentinel-2 MSI L1 Sentinel-3 OLCI L1 Sentinel-3 SLSTR L1 EW GRD Medium Resolution MSI L1b TOA Radiances in Sensor Geometry. MSI L1c TOA Reflectances in Cartographic Geometry. EO Mode OLCI L1 Full Resolution EO Mode OLCI L1 Reduced Resolution Observation Mode SLSTR L1 TOA Radiances, ortho-geolocated and re-sampled onto along-track and across-track grid. TOA Radiances, ortho-geolocated and re-sampled onto along-track and across-track grid. Brightness temperatures and TOA Radiances orthogeolocated and re-sampled onto along-track and across-track grid. < 1 month (consolidated production) < 1 month (consolidated production) SM Standard L2 Ocean Product Geolocated Geophysical Parameters: Ocean Wind Field, Ocean Wave Spectra, Surface Radial Velocity. Sentinel-1 SAR L2 OCN IW Standard L2 Ocean Product EW Standard L2 Ocean Product Geolocated Geophysical Parameters: Ocean Wind Field, Surface Radial Velocity. Geolocated Geophysical Parameters: Ocean Wind Field, Surface Radial Velocity. < 1.5h for areas defined in [AD 5] WV Standard L2 Ocean Product Geolocated Geophysical Parameters: Ocean Wind Field, Ocean Wave Spectra, Page 11/18

12 Surface Radial Velocity Sentinel-2 L2 5 MSI L2a Bottom of Atmosphere Reflectances in Cartographic Geometry 1Hz and 20Hz Ku and C bands waveforms and parameters retracking estimates over land, coastal areas, land ice and inland water (in LRM/SAR/PLRM modes). Geophysical parameters: Surface Backscatter, Surface Height, Altimeter Range, Snow Density and Depth. 1Hz and 20Hz Ku and C bands waveforms and parameters retracking estimates over open ocean (LRM mode), coastal areas and sea ice (in SAR/PLRM modes). Geophysical parameters: Surface Backscatter, Sea Surface Height, Significant Wave Height, Ocean Depth, Tide Height, Sea ice concentration, Sea ice freeboard, Sea Surface Wind Speed, and Rain Rate. Not Applicable L2 L2 STM Land Sentinel-3 STM L2 L2 STM Marine < 2 days (consolidated production) < 1 month (consolidated production) 5 This is currently generated on the users side by using a processor running on ESA s Sentinel-2 Toolbox. The possibility of making a standard core product systematically available from the Sentinels core ground segment is currently being assessed as part of the CSC evolution activities. Page 12/18

13 Sentinel-3 OLCI L2 OLCI L2 Water & Atmosphere FR OLCI L2 Water & Atmosphere RR OLCI L2 Land & Atmosphere FR Geophysical Parameters: Water Surface Directional Reflectance, Algal Pigment Concentration, Total Suspended Matter Concentration, Diffused Attenuation Coefficient, Coloured Dissolved Matter absorption, Photosynthetically Active Radiation Aerosols Load over Water, Integrated Water Vapour. Full resolution. Geophysical Parameters list as above. Reduced resolution. Geophysical Parameters: Global Vegetation Index, FAPAR in Plant Canopy, Terrestrial Chlorophyll Index, Integrated Water Vapour. Full resolution. < 1 month (consolidated production) OLCI L2 Land & Atmosphere RR Geophysical Parameters list as above. Reduced resolution. Sentinel-3 SLSTR L2 SLSTR L2 Marine SLSTR L2 Land Sea Surface Temperature (GHRSST-like) Land Surface Temperature < 1 month (consolidated production) Sentinel-3 OLCI and SLSTR Synergy L2 L2 synthesis product. Geophysical Parameters: OLCI-SLSTR synergy Land Surface Reflectances, and < 1 month Aerosol Load over Land. VGP VGT-P like TOA Reflectances < 1 month VG1 1-km world map fully atmosphere corrected surface reflectances 1 day synthesis product ( VGT-S like) < 1 month V10 1-km world map fully atmosphere corrected surface reflectances 10 days synthesis product ( VGT-S like) < 1 month S-4 L2 TBW Geophysical Parameters (Air Quality) TBW O3 (3 products) containing: Total Column Profile < 14 days (consolidated production) Page 13/18

14 Ozone Tropospheric profile O3 Tropospheric Colum < 14 days (consolidated production) S-5P TROPOMI L2 Nitrogen Dioxide Sulfure Dioxide Formaldehyde Carbon Monoxide NO2 (2 products) containing: Total Column Tropospheric Column SO2 Total Column HCHO Total Column CO Total Column < 14 days (consolidated production) < 14 days (consolidated production) < 14 days (consolidated production) < 14 days (consolidated production) Methane CH4 Total Column < 14 days (consolidated production) Aerosols Clouds (2 products) containing: Aerosol Index Aerosol Layer Height Cloud Information (e.g. cloud top height and cloud fraction) < 14 days (consolidated production) < 14 days (consolidated production) Page 14/18

15 3 PRODUCTS GRAPHICAL REPRESENTATION Figure 1: Graphical Representation of Sentinel-1 Core Products. Page 15/18

16 Mul=%Spectral% Instrument% Level%2% %BOA%reflectances%in% cartographic%mode*% Level%0% Level%1% TOA%radiances%in% sensor%geometry%(l1b)% TOA%Reflectances%in% cartographic%geometry%(l1c)% Figure 2: Graphical Representation of Sentinel-2 Core Products. *Note that L2a BOA reflectances are generated at users side by a processor running on ESA s Sentinel-2 Toolbox. The possibility to make it a standard systematic product from the core ground segment is currently under assessment at ESA as part of the CSC evolution activities. Page 16/18

17 Figure 3: Graphical Representation of Sentinel-3 Core Products. Page 17/18

18 TROPOMI% O3%Total%Column% O3%Trop.%Column% O3%Profile% O3%Trop.%Profile% NO2%Total%Column% NO2%Trop.%Column% HCHO%Total%Column% Level%2% CO%%%Total%Column% CH4%Total%Column% SO2%Total%Column% Aerosol%Index% Aerosol%Layer%Height% Cloud%informa5on% Figure 4: Graphical Representation of Sentinel-5P Core Products. Page 18/18