COMPARATIVE AUTOMATED MULTI-DATASET ANALYSIS
Download
1 / 25

PPT file - PowerPoint PPT Presentation


  • 377 Views
  • Updated On :

COMPARATIVE AUTOMATED MULTI-DATASET ANALYSIS OF THE MARTIAN AND VENUSIAN TIME-VARIABLE PLASMA ENVIRONMENTS

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'PPT file' - Roberta


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Slide1 l.jpg

COMPARATIVE AUTOMATED MULTI-DATASET ANALYSIS

OF THE MARTIAN AND VENUSIAN

TIME-VARIABLE PLASMA ENVIRONMENTS

N. André1,2, C. Jacquey1,2, A. Fedorov2, E. Budnik3, V. Génot1,2, C. Ferrier2, C. Mazelle2, B. Cecconi4, E. Penou2, T. L. Zhang5, H. Rucker5, M. Khodachenko5, W. Baumjohann5, H. Lammer5, M. Volwerk5, R. Nakamura5, F. Topf5, J.-A. Sauvaud2, S. Barabash6, and R. Lundin6

1CDPP, CNRS/Université Paul Sabatier, 9, avenue du colonel Roche, 31028 Toulouse, France ([email protected])

2CESR, CNRS/Université Paul Sabatier, 9, avenue du colonel Roche, 31028 Toulouse, France

3NOVELTIS, 2 Avenue Europe, 31520 Ramonville Saint Agne, France

4Space Research Institute, Austrian Academy of Sciences, OAW, Graz, Austria

5LESIA, Observatoire Paris Meudon, Meudon, France

6Swedish Institute of Space Physics, S-98 128, Kiruna, Sweden

International Conference on Comparative Planetology: Venus - Earth - Mars

ESTEC, Noordwijk, The Netherlands, Thursday 14 May 2009 17:10:00, Abstract #1627645


Slide2 l.jpg

OUTLINE

  • Context

    • CDPP, the french Space Plasma Physics Data Center

    • AMDA, Automated Multi-Dataset Analysis

    • Europlanet IDIS and Planetology VO

    • AMDA VEX and MEX Data Prototype

    • Venus, Earth and Mars magnetospheres

  • 2. A Few Scientific Illustrations (Method)

    • Boundary Identification

    • Current Sheet Crossings

    • Planetary Space Weather


Slide3 l.jpg

CDPP, the french Plasma Physics Data Center (CNRS/CNES)

  • Hosted at CESR, Toulouse, France

  • http://cdpp.cesr.fr

  • Its Missions:

  • 1) Data Archive (long-term preservation)

  • 2) Data Valorization

    • Making data easy to use

    • Providing tools and services

  • 3) Participation to Virtual Observatories


Slide4 l.jpg

1. Visualization editor

AMDA (Automated Multi-Dataset Analysis) Functionalities

2. Download data

3. Parameter editor

Web-based facility for online analysis of space physics data

http://cdpp-amda.cesr.fr

4. External data

5.Visual search

  • Prototype

  • Automated access to data

    • the user plays with parameters, not with data files

  • Produces and exploits time-tables

  • Its 7functionalities allow to use and couple these two objects

6. Conditional search

7. Time-Table manager


Slide5 l.jpg

Europlanet IDIS (Integrated & Distributed Information System)

5 thematic nodes and 1 technical node

Its objective:

Develop Virtual Observatory tools

In order to access data from

laboratory measurements

ground+spaced-based observations

modeling results

allowing comparative and pluri-disciplinary studies of planetary objects and environments

Plasma Node

http://europlanet-plasmanode.oeaw.ac.at/



Slide7 l.jpg

CDPP/AMDA Local and Remote Data Access System)

IC/QM, UK

Heliosphere

Magnetosphere

Planetaryenvironments

Perspectives

CESR, France

IWF, Austria

CESR, France

Mirror site

LESIA, France

GSFC, USA

Cluster

Interball

Geotail

CESR, France 

Mirror site


Slide8 l.jpg

AMDA VEX/MEX Data Prototype System)

Rules of the road apply !

VEXGRAZ (remote, from Tielong Zhang)

MAG (Bx, By, Bz) VSO 4 s

VEX/ ASPERA (local, from Andrei Fedorov)

TRAJ (X, Y, Z) VSO 60 s

IMA

spectra heavy ions 192 s

spectra protons 192 s

moments heavy ions 192 s

moments protons 192 s

ELS spectra 4 s

MEX/ ASPERA (local, from Andrei Fedorov)

TRAJ (X, Y, Z) MSO 60 s

IMA

spectra heavy ions 192 s

spectra protons 192 s

ELS spectra 4 s

Caution!

(cleanliness)

Caution!

(3-axis stabilized)


Slide9 l.jpg

Venus, Earth, and Mars Magnetospheres System)

Venus / Earth / Mars

Magneticfieldnoyescrustal

Atmosphereyesyessmall

Solarwindproperties @ 0.72, 1 & 1.5 UA

  • Key Features:

  • 1) Various plasma populations (E/compo)

    • Differentregions/boundaries

  • 2) ‘Universal’ structure (e.g., currentsheet)

  • 3) SW / magnetosphere interactions


Slide10 l.jpg

AMDA Functionality #1: Visualization Editor System)

Parameter

Selection

Plot Composer


Slide11 l.jpg

AMDA Functionality #1: Visualization Editor System)

Venus (VEX) Earth (THEMIS) Mars (MEX)

No magnetometer

No mass resolution


Slide12 l.jpg

Illustration 1: Boundary Detection System)

Bow Shock (BS)

Where the solarwindisslowed down and heated

Ion Composition Boundary (ICB)

Where the thermal plasma of the ionosphereisseparatedfrom the hot magnetosheath plasma

Vanishing of solarwind protons

Appearance of planetary ions

Disappearance of energeticelectrons

Presence of a Magnetic ‘barrier’

Magnetopause (MP)

Where the geomagneticfield and plasma of primarilyterrestrialorigin are separatedfromsolar-wind plasma

Venus

Earth

Mars


Slide13 l.jpg

Illustration 1: System)

BS Detection at the Earth

Jacquey et al., 2008

Building parameters:

Conditional search:

B > 5.10-7

AND V > 5.10-7

AND R > 10 RE

Time Table of BS crossings



Slide15 l.jpg

Illustration 1: System)

BS Detection at Mars/Venus

Finding the ‘ultimate‘ criteria!

?

?


Slide16 l.jpg

AMDA Functionality #6: Conditional Search System)

R < 3

&

R>1.5

&

X<0

&

Abs(Y)/abs(X) < 0.5

&

Bx(t) times Bx(t+60s) < 0

Time Table cs_crossing_vex created



Slide18 l.jpg

Illustration 2: Current Sheet Crossings System)

One of the 3 time intervals in the Time Table

Venus

Earth

R>6.6 & X<0 & abs(Y)/abs(X) < 0.5

Bx(t) times Bx(t+60s) < 0


Slide19 l.jpg

Illustration 3: SEP Events System)

Event fromFutaana et al., 2008

08/12/2006

AMDA Functionality #4:

External Data

CDAweb

The X9-class solar flare of Dec. 5, 2006, observed by the Solar X-Ray Imager aboard NOAA's GOES-13 satellite


Slide20 l.jpg

Illustration 3: System)

ICMEs

Event from Zhang et al., 2008

Venus

Low Mach numbersolarwind

18 BS crossingsreported

Atypical

Compressed effective obstacle


Slide21 l.jpg

Illustration 3: System)

ICMEs

Earth

14/11/2007

Venus, Stereo A, Mars

Radial alignment

http://stereo-ssc.nascom.nasa.gov/

http://aten.igpp.ucla.edu/cgi-bin/stereo_PLASTIC_MAG_LEVEL2

  • STEREO MAG and PLASTIC data (1 min)

  • Level 3: Event lists (ICMEs)


Slide22 l.jpg

Illustration 3: System)

ICMEs

Earth

Stereo A

Stereo B

ACE

MAG data

field rotation,

heliosphericcurrentsheetcrossing

2007 11/19 22:00

2007 11/21 03:17



Slide24 l.jpg

Illustration 3: System)

ICMEs

Mars

Venus


Slide25 l.jpg

CONCLUSIONS System)

  • CDPP/AMDA (Automated Multi-Dataset Analysis) is public

  • http://cdpp-amda.cesr.fr

  • Still a prototype but you are invited to use it (It will be open at the end of this year)

  • [email protected]

  • Including other Martian datasets (locally or remotely) if possible

  • Future connections with IVOA tools like Aladin under study

  • (giant planet auroral emissions, HST observations)

  • Online demonstrationduring the poster session

    PERSPECTIVES

    EuroPlaNet IDIS

    Plasma Node

    activities


    ad