Application of NASA ESE Data and Tools

toAir 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 uFIND

Community Portal

Provider

GEOSSClearinghouse

Coarse Filter

Refined Search

Standards-Based Service Protocol

OGS Standards, WCS, WMS

WCS 1.1.2 Interface

GetCapabilities GetCoverageDescribeCoverageContains 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 Client

DatabaseNc, SQL, Cube

Capabilities Doc DeliverCoverageDescribeCoverage Doc

Metadata Extractor

Subsetter

SQL Subsetter

SQL

WCS Get Coverage Query

Parser Coverage, Field, BBOX, Times, Other DImApply Templates

Query Database

Post-process output

GetCoverage

‘Select’ Template

‘Where’ Template

Data

Output as a netcdf, csv…

Emission

Surf. Obs.Satellite

ModelPopulation

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.

Inte

rfac

e

Client

Front End

Std.

Inte

rfac

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.

Inte

rfac

e

Gen. ProcessingSt

d. In

terf

ace

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