NASA Applied Sciences Program Air Quality Team Meeting October 27-29, Washington, DC
description
Transcript of NASA Applied Sciences Program Air Quality Team Meeting October 27-29, Washington, DC
Application of NASA ESE Data and Toolsto
Air Quality Management
Stefan Falke and Rudolf Husar (Co-PIs)Washington University in St. Louis
Project Period: Nov 04 – Oct 09
NASA Applied Sciences Program Air Quality Team MeetingOctober 27-29, Washington, DC
Hurdles
“The user cannot find the data;
If he can find it, he cannot access it;
If he can access it, he doesn't know how good they are;
if he finds them good, he can not merge them with other data”
The Users View of IT, NAS 1989
Interoperability Stack
UserProvider
GEOSSClearinghouse
Core Discovery Metadata/Machine Metadata
OGC W*S Capabilities
People-People
Extended Structured Metadata ISO 19115
Publish
Bind
Find
Service Orientation
Refined Search for AQ Data in uFIND
AQ uFINDAQ uFIND
Community Portal
Provider
GEOSSClearinghouse
Coarse Filter
Refined Search
Standards-Based Service Protocol
OGS Standards, WCS, WMS
WCS 1.1.2 InterfaceWCS 1.1.2 Interface
GetCapabilitiesGetCapabilities GetCoverageGetCoverageDescribeCoverageDescribeCoverageContains a heterogeneous list of coverages. (collection of homogeneous data fields)
Used to find and select coverage/fields
Description of specific coverage (BBOX, time range, grid size, location table) and it’s fields.
Used to formulate data request
Subset of coverage by bbox, time range, fields, etc.
Used to access space-time subset of requested coverage
WCS ClientWCS Client
DatabaseNc, SQL, Cube
Capabilities DocCapabilities Doc DeliverCoverageDeliverCoverageDescribeCoverage Doc
DescribeCoverage Doc
Metadata ExtractorMetadata Extractor
SubsetterSubsetter
SQL Subsetter
SQLSQL
WCS Get Coverage Query
Parser
WCS Get Coverage Query
Parser Coverage, Field, BBOX, Times, Other DImApply Templates Apply Templates
Query DatabaseQuery Database
Post-process output
Post-process output
GetCoverageGetCoverage
‘Select’ Template‘Select’ Template
‘Where’ Template‘Where’ Template
Data
Output as a netcdf, csv…
Emission
Surf. Obs.Satellite
Model
Population
Informing the Public
Enforcing Standards
Hemispheric Transport
Real-time Service
Regulatory Analysis
Policy Assessment
Air Quality & Health Applications
Observing Systems
Atmospheric
Composition
Science & Education
GEOSS Air Quality Community of Practice
(GEO CoP)
How you can contribute and benefit
Community Building • Share your interests and project contributions (like this meeting)• Use ESIP for advancing your project objectives (e.g., ‘built-in’ testers, users…)• Help define the GEOSS GCI and/or Community of Practice
Enhance the Information Infrastructure• Become a ‘node’ on the air quality interoperability network• Learn best practices in implementing standards for sharing your project data and tools• Participate in (and influence) the GEOSS Architecture Implementation Pilot • Use the AQ Community Information Architecture (register your services in GEOSS, find
information resources useful for your project)• Participate in the development of air quality information networks
Collaborate on AQ Science and Research Projects
DataFed Application/Tech Infusion: Hemispheric Transport of Air Pollutants (HTAP)
HTAP Data Network
Interested in participating in the HTAP Network?
Have AQ Info
Need?
Make your need be known to CoP
Have Data or Model
Register them in the HTAP Catalog
Want to Help Building Network?
Participate in the AQ Community of
Practice
Loosely Coupled Data Access through Standard Protocols
The next three slides describe the key technologies used in the creation of an adaptable and responsive air quality information system.
OGC data access protocols and standard formats facilitate loose coupling between data on the internet and processing services.
For air quality, the Web Coverage Service (WCS), provides a universal simple query language for requesting data as where, when, what. That is: geographic (3D bounding box), time range and parameter.
The Web Map Service (WMS) and Web Feature Service (WFS) are also useful.
The use of standard data physical data formats and naming conventions elevates the syntactic and semantic interoperability.
Within DataFed all data access services are implemented as WCS or WMS and optionally WFS. General format adapter components permit data request in a variety of standard formats.
GetCapabilities
GetData
Capabilities, ‘Profile’
Data
Where? When? What? Which Format?
Server
Back End
Std
. In
terf
ac
e
Client
Front End
Std
. In
terf
ac
e
Query GetData Standards
Where? BBOX OGC, ISO
When? Time OGC, ISO
What? Temperature CF
Format netCDF, HDF.. CF, EOS, OGC
T2T1
Domain ProcessingData Sharing
Std
. In
terf
ac
e
Gen. ProcessingS
td.
Inte
rfa
ce
Data
Control
Reports
Reporting
Obs. & Models Decision Support System
GEOSS Framework
Dec Maker‘Informer’Proc/MedData Mgr
Foreign Ministers
LRTP Lead Taskforce
Atm. Science Assessors
Science Data Manager
HTAP
EPA Reg. Dec. Maker
Fed. Agency Regulator
Sate Agency Analyst
Portal Manager Except Event
Public Individual
Media Public, Private
Forecaster Analyst
Automatic DataReal Time
User/Actor Class
Air Quality Info System
Users (Classes) Links (Types) Info
(Flow)
GE
OS
S C
ore