Standards-based Access to Satellite Atmospheric Composition Data

Transcription

1 Chart 1 Working Group on Information Systems and Services Standards-based Access to Satellite Atmospheric Composition Data S. Falke, C. Lynnes, J. Meyer-Arnek, O. Goussev, M. Bittner et al.

2 Chart 2 Access to Satellite Observations... is vital for the HTAP community because reliable access to satellite-derived atmospheric composition data will support data comparisons and model evaluations. Can the AC community simplify the process of identifying, accessing and using satellite data for HTAP applications in order to increase the acceptance and application of satellite AC data across the HTAP community? Taskforce HTAP Workplan, Work Package 6.7: To provide a networked repository for observational data from satellites relevant to HTAP analyses, particularly for model evaluation, it is necessary to Identify data needs and appropriate repositories development and demonstration of data access

3 Chart 3 Relevance to HTAP: Satellite data use and needs for HTAP community

4 Chart 4 ACP Mission Statement Provide access, tools, and contextual guidance to scientists and value-adding organizations in using remotely sensed atmospheric composition data, information, and services. Help foster interoperability and application of atmospheric composition data, information and services worldwide. Identify the unique requirements and common (shared) features of the ACC and GEOSS users to provide a value-added and complementary capability. Work with partners in CEOS and the broader AC community in advancing this initiative (ACP)

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6 Chart 6 Access to Satellite data Satellite-derived atmospheric composition data sets are available from a variety of space agencies and mediator/broker organizations. Examples include: NASA EOS DISC DLR EOWEB DLR WDC-RSAT Datafed / ufind EPA Remote Sensing Information Gateway (RSIG) and many more

7 Chart 7 > J. Meyer-Arnek wdc.dlr.de/acp Satellite Data: Level 0 Level 4

8 Chart 8 NASA GES-DISC Goddard Earth Science Data and Information Services Center

9 Chart 9 Giovanni The Bridge between Data and Science

10 Chart 10 Giovanni The Bridge between Data and Science

11 Chart 11 Giovanni The Bridge between Data and Science

12 Simple Subset Wizard Subsetting today: Locate data center Learn data center search tool Search for datasets Search for files Select files Add files to shopping cart Specify subsetting criteria Request Subsets Simple Subset Wizard: Locate data center Learn data center search tool Search for datasets Search for files Select files Add files to shopping cart Specify subsetting criteria Request Subsets

13 Simple Subset Wizard (2)

14 Simple Subset Wizard (3) OpenSearch to query inventory catalogs Subset agents for: Open source Project for a Network Data Access Protocol (OPeNDAP) Web Coverage Service RESTful subsetting services Simple Subset Wizard itself provides a REST like API for machine tomachine use Offering a single interface for several different subset services (OPeNDAP, WCS, other)

15 Planned: Multi sensor Data Synergy Advisor NASA technology project to provide salient information on the key differences between data products Initially developed for Aerosols Can be extended for Ozone (focus of ACC, Atmospheric Composition Constellation) Uses semantic web technology to store knowledge base in a machine readable / interpretable form Ontology model of data product characteristics and quality dimensions Rulesets to raise issues about pair wise combinations

16 Planned: Multi sensor Data Synergy Advisor MDSA provides users with key info about similarities and known issues when comparing or merging datasets

17 Chart 17 Atmospheric Composition Data Sets served by NASA EOS DISC Provider Name URL Provider type: Types of AC data Standard Web Services Type of data returned HDF 5 NASA EOS DISC OriginalSource AIRS, OMI, HIRDLS, SBUV, TOVS, Level 2, Level 3 http, OPeNDAP, FTP Metadata Standard ISO 19115

18 Chart 18 DLR EOWEB

19 Chart 19 Atmospheric Composition Data Sets served by EOWEB (DLR) Provider Name URL Provider type: Types of AC data Standard Web Services Type of data returned Metadata Standard DLR EOWEB Original Source / Broker GOME, GOME 2, AVHRR Level 2 Order Service (Shopping Cart) HDF X (mainly) ebrim EO German National Satellite Data Library

20 Chart 20 DLR: WDC-RSAT (MetOp-A/GOME-2 Level 3)

21 Web Services (Web Coverage Service, WCS) Provide easy access to Pasodoble products: - Pasodoble Regional Air Quality Products - MACC Air Quality Ensemble Results - AQ observations (in situ derived from EEA) - Satellite Enter the observations following URL (GOME-2) into your browser: Startinghttp://wdc.dlr.de/ points: - cgi-bin/airsheds_new? - service=wcs&version=1.0.0&request=getcoverage& - coverage=fmi_fc_o3_vmr_0&time= & elevation=1&bbox=4,45,15,55 -

22 Web Services (Web Coverage Service, WCS) Open the downloaded file using Panoply:

23 Web Services (Web Coverage Service, WCS)

24 Folie 24 rma.vito.be Air quaility model evaluation according FAIRMODE guidelines (Forum for Air quality MODelling in Europe). Metadata: ISO / 19139

25 Chart 25 Atmospheric Composition Data Sets served by WDC-RSAT Provider Name URL Provider type: Types of AC data Standard Web Services Type of data returned DLR WDC RSAT Broker GOME, GOME 2, AVHRR Level 3, Level 4 WMS, WFS, WCS, SOS (alike) netcdf (CF compliant) Metadata Standard ISO / ISO 19139

26 Chart 26 Datafed.net and ufind The main goals of DataFed are: Aid air quality management and science by effective use of relevant data Facilitate the access and flow of atmospheric data from provider to users Support the development of user driven data processing value chains

27 Chart 27 Atmospheric Composition Data Sets served by DataFed and searchable through ufind Provider Name DataFed and ufind (Rudolf Husar, Washington Univ. in St. Louis) URL Provider Type Types of AC data Access Standard Web Services Broker / Mediator MODIS: AOD; OMI: NO2, AI; TOMS: AI; AIRS: CO; MISR: AOT Web Service Interfaces, ufind Discovery Tool, DataFed Browser OGC WCS, WFS, WMS Metadata standard(s) ISO / Data/Metadata Catalogue Air Quality Community Catalog, EuroGEOSS

28 U.S. Chart 28 EPA > J. Meyer-Arnek Remote wdc.dlr.de/acp Sensing Information Gateway Data Flow Diagram RSIG Contacts: Jim Szykman PI Todd Plessel Lead Developer (Lockheed Martin)

29 Chart 29 Atmospheric Composition Data Sets served via U.S. EPA RSIG Provider Name URL Provider Type Types of AC data Access Standard Web Services Type of Data Returned Metadata standard(s) EPA Remote Sensing Information Gateway Original Source / Broker AIRNow O3, PM2.5 AQS: O3, SO2, NO2, CO, PM10 Sat.: MODIS, CALIOP Aircraft: MOZAIC O3, NO2, T, p, GUI (JAVA based applet) and web services (WCS/WMS) OGC WCS, OGC WMS Original data, binary, ASCII, geotiff, etc. Defined by project team

30 Chart 30 > J. Meyer-Arnek wdc.dlr.de/acp Dublin Core element OGC queryables Definition title Title A name given to the resource. Also known as Name. Howcreator much metadata is enough? An account of the content of the resource. This is also Which description metadata type (data Abstract sets)? ISO publisher / part 2 / descriptions of geodata, datasets, imagery An entity responsible for making contributions to the contributor content of the resource. Darwin Core - descriptions of biological data The date of a creation or update event of the catalogue date Modified record. EO-HMA - descriptions of earth observation products The nature or genre of the content of the resource. type Type Dublin Core - universal descriptions of resources The physical or digital manifestation of the resource. format Format A reference to a resource from which the present Whichsource metadata type (Services)? Source OWS language descriptions of OGC Web services An entity primarily responsible for making the content of the resource. subject Subject A topic of the content of the resource. This is a place where a Topic Category or other taxonomy could be applied. known as the Abstract in other aspects of OGC, FGDC, and ISO metadata. An entity responsible for making the resource available. This would equate to the Distributor in ISO and FGDC metadata. identifier Identifier A unique reference to the record within the catalogue. resource is derived. A language of the intellectual content of the catalogue record. The name of the relationship that exists between the ISO relation 19119? Association resource described by this record and a related resource referenced using the Source or dc:source property. coverage BoundingBox The spatial extent or scope of the content of the resource. rights OGC - OGF Workshop, Joshua Lieberman, Traverse Technologies Inc, February Information about rights held in and over the resource.

31 Chart 31 > J. Meyer-Arnek wdc.dlr.de/acp

32 Chart 32 ACP at the Intersection of Atmospheric and Information Sciences The ACP aims to provide a community oriented framework that applies best practices in information science and technology to atmospheric composition science. Together we can define best practices for using satellite data in HTAP.

33 Chart 33 ACP at the Intersection of Atmospheric and Information Sciences The ACP aims to provide a community oriented framework that applies best practices in information science and technology to atmospheric composition science. Together we can define best practices for using satellite data in HTAP. ACP Beta

34 Chart 34 Collaboration Opportunity How do we best continue discussion on a joint HTAP-ACP activity? Potential approach: Define how you would like to access and use satellite derived data for your activities Work together to identify applicable data sources and access methods Develop best practices, including conventions for standards-based data and metadata access