heliophysics integrated observatory (helio) heliophysics integrated observatory helio robert...

Heliophysics Integrated Observatory (HELIO)

Heliophysics Integrated Observatory

HELIO

Robert Bentley, UCL-MSSL (UK)Andre Csillaghy, FHNW (CH)

Jean Aboudarham, Obs. Paris-LESIA (FR)& The HELIO Team

(European Geophysical Union, Vienna, 21 April 2009)

2Heliophysics Integrated Observatory (HELIO)

Overview

Heliophysics is the study of the effect of the Sun on the Solar System

New discipline that spans a number of well established communities

HELIO, the Heliophysics Integrated Observatory, will provide the heliophysics research community with an integrated e-Infrastructure that has no equivalent anywhere else

Need for this type of capability driven by desire to study problems that span disciplinary boundaries

Search base on metadata increasingly important as data volumes increase

Proposal submitted to EC’s FP7 Capacities Specific Programme Call in September 2008 for “Scientific Data Infrastructures”One of six projects selected for Negotiations in January 2009

Projected start date of HELIO is 1 June 2009, duration 36 months


Objectives & Structure

Project ObjectivesTo create a collaborative environment where scientists can discover, understand and model the connection between solar phenomena, interplanetary disturbances and their effects on the planets (esp. the Earth) To establish a consensus on standards for describing all heliophysical data and champion them within international standards bodies, e.g. the IVOATo develop new ways to interact with a virtual observatory that are more closely aligned with the way researchers wish to use the data

HELIO will address its challenges following the Integrated Infrastructure Initiative (I3) activities model of the EC’s Framework Programme:

Networking Activities used to involve the communityService Activities used to implement structure of the virtual observatory Research Activities used to investigate/develop required capabilities

Desire is to create something in useful to the community, however it chooses to use it. Therefore need input and feedback from the community during all phases of the project


Context and Communities

Heliophysics is the effect of the Sun on the Solar System

On/near Earth, effects on society stimulate interest – Space WeatherEffects experienced throughout System

Heliophysics is mainly an event driven discipline

Something is observed and desire is to trace origins or subsequent effects

Nature of the effect depends on causal phenomenon and location of the observer

Most effects have origins in emissions from solar activitySome effects related to propagating phenomena resulting from activityLocation in relation to source and with respect to a planet determines effectsPresence of magnetic field and/or atmosphere influences effect on planetary environment

U.Alaska


Context and Communities

Immediate effects relate to photons emissions

Short delay due to light propagation timeEffects mostly experienced if observer has line-of-site view of the source

Delayed effects cause by particle emissions

Particles follow the spiral of the IMF – effects lags behind sourceCMEs distort IMF and carry embedded magnetic field Delay can be tens of hours, even at Earth Phenomena must pass observer for effect to be experience

Different aspects of effects traditionally studied in separate domainsSolar, heliospheric, magnetospheric & ionospheric (planetary & geo-sciences)

Communities have evolved independently over decades or centuries

Significant differences in the content of data, and the way they are stored and handled


HELIO’s perspective of a generic problem

Identify interesting eventsEvent lists and feature lists used as primary selection criteriaContext information helps user to refine selection

o images, time series of observed and derived parameters, etc.

Search based solely on metadata and derived products Search undertaken across several domains in 4-Dimensions

o Effects occur as phenomena propagate – whether, where and when to look

o Follow phenomena through coordinate systems as enter planetary environment

Review availability of suitable observations Determine whether observations matching selection criteria are available for the relevant locations and time intervalsCoverage and quality of observations are addition selection criteria

Locate, select and retrieve the required observationsFor all domains, system knows which types of data are held where and handles access no matter how data are stored (access protocols & formats)Optionally process selected observations (extract and calibrate)

Optionally return data in different/desired format

Analysis done with users own software tools (e.g. IDL)


Implementation following I3 model

HELIO is based on a Service-Oriented ArchitectureSeries of metadata servers covering the different domains

o Event and feature metadata; also context information – time series & images

Service to provide enhanced search capability based on metadata o Facilitates search across domains for interesting eventso Propagation model available to relate metadata from all part of Solar System

Services to identify and retrieve observations based on search resultso Determines whether suitable observations were made at particular

time/place– Knows about data types, coverage & observatory location w.r.t. Sun and planetary

bodieso Knows which data are stored where and how to access them

Servers to provide processing and storage capabilitieso Tools provided to find and track events/phenomena in 4D environmento Tools to generate quick-look products, o Tools to extract & calibrate subset of data in any desired format

Services can be used individually or combined through workflow capability

Semantic-drive approach used to integrate data from different domains

o Based on ontology derived from existing data models


Implementation following I3 model

Networking Activities used to involved the communityCommunity consulted to determine project requirementsFocus Groups used to resolve issues and formulate designsUser Groups used to review capabilities and provide feedback

o Need people who will assist the project for an extended period

Coordinated Data Analysis Workshops (CDAWs) are plannedo Provisional dates are in months 18, 24 and 30

Community Coordination Meetings will also be heldo Some will be in conjunction with meetings like the EGU

Research Activities used to investigate/develop required capabilities

Develop ontology to help create over-spanning data model (Semantic VO)

o Based on existing data models such as EGSO, VSTO and SPASE o Not practical to develop single data model for everything, nor is it

realistic to expect communities to adopt it over their own models

Feature detection and tracking capabilities in new domainsEnhanced user interface to encourage uptake of VO capabilities


Realizing HELIO’s other objectives

Strategy and StandardsHELIO will provide integrate access to metadata and data from several domains that are related but have distinct differencesIssues related to the quality and coherence of some metadata

o Semantic-driven approach will resolve many, but not all problems

Need to improve the search and observational metadatao Regenerate some metadata – event lists, etc.o Talk with data providers to ensure header information improvedo Develop new standard for future datasets; accommodate existing

ones

Make improvement in collaboration with the global communityo Compliant as far as possible with standards develop by IVOA, etc.o Need to be sympathetic to related communities - astrophysics,

planetary, etc.

Enhanced User InterfaceUptake of VxOs could be limited by the nature of user interfaces

o Interfaces do not provide access in way scientists want to think

HELIO trying to find new ways of create and tailor user interfaceso Networking activity will seek input and opinions from the community

Objective will be pursued after HELIO infrastructure has been established


The HELIO Consortium

Several partners have extensive knowledge of the domains of heliophysics and experience in managing and archiving their dataOthers provide expertise in different areas of computer science and also have some familiarity with handling data

Country Institution Contact

UK University College London (MSSL) R.D. Bentley (PI)

CH Fachhochschule Nordwestschweiz A. Csillaghy

FR Observatoire de Paris (LESIA) J. Aboudarham

FR Universite Paul Sabatier Toulouse (CESR) C. Jacquey

UK Science and Technology Facilities Council (RAL) M.A. Hapgood

FR Universite Paris-Sud (IAS) K. Bocchialini

IT Istituto Nazionale di Astrophisica (Obs. Trieste) M. Messerotti

UK University of Manchester J. Brooke

IE Trinity College Dublin P. Gallagher

US Rensselaer Polytechnic Institute P. Fox

US Lockheed Martin Space Systems Company (LMATC) N. Hurlburt

USNational Aeronautics and Space Administration (Heliophysics Science Division at GSFC)

D.A. Roberts

Int. European Space Agency (Science Operations Dept., Space Environment & Effects Dept.)

L. Sanchez


Relation with other (past or running) projects

EGSO FP5 project supporting solar physics – many partners were involved

Technology for servers and registries have heritage in EGSO

AstroGrid UK e-Science project – All UK partners were involved to varying degrees

HELIO will reuse some of the technology developed by AstroGrid

VOTech FP6 VO technology development (part of Euro-VO)

Several partners involved – HELIO will employ VOTech technology

SOTERIA FP7 project mainly oriented towards developing EU data resourcesLimited effort devoted to integration – complements HELIO… Already had discussions with relevant partners (OBSPM a partner)

EuroPlaNetResearch Infrastructure

FP7 project supporting planetary science – CESR led, others involved Community at HELIO boundary (PC: IDIS Expert; CESR: Interoperability)

VSTO Funded by US NSF – strong synergies with HELIO (Partner is PI)

AMDA French project lead by CESR (partner in HELIO)

SWENET Established by ESA to support Space Weather Pilot ProjectsMajor component of Eu SWx community – interoperability essential

NASA HDMC(SPASE)

NASA coordination activity in heliophysics (incl. VSO, VHO, etc.)US partner at NASA-GSFC is Project Scientist of HDMC


HELIO Web Site

Site will describeWhat HELIO is doing How users in the community can be involved

Discussions on standards in conjunction with the IAU

When community meeting and CDAWs will be heldOther news, etc.

Site is still being developed

www.helio-vo.eu


Conclusions

HELIO will establish an integrated e-Infrastructure for heliophysics that will facilitate exciting new science that spans disciplines

Involving the community important to HELIOUser Groups will be established to provide input and feedbackCoordinated Data Analysis Workshops will provide opportunity for scientists to learn about and use the HELIO systemCommunity Coordination Meetings will keep everyone up to date

HELIO will also strive to enhance the richness of the underlying fabric in all the domains that constitute heliophysics

Encourage improvement of contents and structure of the data & metadataHelp define and implement new strategy and standardsNeed community involvement to do this!

HELIO Web site: www.helio-vo.eu

Projected start date: 1 June 2009

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