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SWT Overview 1
UCB, Nov15/16, 2006
Mirror site and services at CESR and CDPP
Christian Jacquey, CDPP, CESR, [email protected] Penou, CESR, [email protected]
What is envisioned at CESR and CDPP
Mirror site of the THEMIS space data:Relay for distributing the THEMIS space dataBackup of THEMIS space data
AMDA: service for Automated Multi-Dataset AnalysisHelp for event searchHelp for event characterisation and statistics
CL: software for integrated detailed analysis of THEMIS/CLUSTER (and others) data
THEMIS SWG meeting SSL Nov. 15-16, 2006
C. Jacquey, V. Génot, E. Budnik, R. Hitierhttp://cdpp.cesr.fr/
AMDA / SPAutomated Mutiple Dataset Analysis
/ Space Physics
Example: event search
Old fashion: “paper” search
AE, AL ISEE-dataIMP-8
AE, AL
ISEEMAGIS
EE-el
ectro
n
IMP8
MAG
IMP8PLA
Current fashion: web
Event search takes time and energy
CDAWebSPDF
UCLA
CAA
CDPP
And others
Automated Mutiple Dataset Analysis / Space Physics
AMDA / SP: the goals
Multiple Dataset: the study of the (multi-scale) dynamics of plasma objects requires to perform the integrated analysis of multi-point and multi-instrument data
Automated (or semi-automated) Analysis: help forSearch, characterisation, classification of events Extensive exploitation of the vast database (statistics)“historical” studies (example: through solar cycles)Building cataloguesBuilding virtual constellations
AMDA, fact sheet
• Now, very first prototype (construction started in June 2006 after kind of phase-A)
• Built on an existing data system (DD_System, A. Fedorov)
• Built in IDL, C, FORTRAN, Javascript
• Works on standardised and “simple” data, NetCDF
• Includes models (Tsyganenko, Shock, MP, NS, …)
• Attempt for using web-services of CDAWeb and the up-coming VxOs
• Forum for user feedback
• Already in use for scientific studies
Schematic description of the envisioned system
Userinterface
Systeminterface
Localdatabase
Services
CASSINIMAPSKP
CDAWebSPDF
Externalinterface
Virtual objects
Virtual objects
AMDA
Distantservices
Distantdatabase
Distantdatabase
Distantservices Web-services
USER
Demo
Derived parameters computation (calculator)
Automated and semi-automated search
Sub-dataset conditional extraction
Distant access to complementary data
An example: search of the events when the cross-tail current is “encircled” by CLUSTER
Test:• X1< -10 Re • BX1 * BX2 * BX3 * BX4 > 0• min([BX1 BX2 BX3 BX4]) < 0• max([BX1 BX2 BX3 BX4]) > 0
Looking for the time periods when 2 s/c are above the neutral sheet and the 2 other ones are below
Looking for possible X-line with a pair of spacecraft
BZ1 * BZ2 < 0 ANDVX1 * VX2 < 0 ANDBX1/Blob < 0.5 AND BX2/Blob < 0.5
CLSoftware for detailed analysis
of multi-datasets in space physics
Developed by Emmanuel Penou ([email protected])Scientific specifications by Jean-André Sauvaud
THEMIS SWG meeting SSL Nov. 15-16, 2006
CL: fact sheet
Multi-missions (CLUSTER, VEX, MEX, DEMETER, ACE, STEREO, …) and multi-instrument (B,E, particles, Waves)
SOLARIS, LINUX, WINDOWS
IDL and C
L1 files
L2 files
Calibration files
Processing
Visualisation
Computation of derived products
Export data (CDF, ASCII)
(Conditionnal search)(Internal formatCDF, ASCII)
DemoPredefined plots
Building, editing, manipulating plots
External files. CDF files
High level products:-distribution function-spectrograms in PA, 1/V-partial moments
Remote running
Conclusion: what can be done at CESR and CDPP for the THEMIS community?
Mirror site for space THEMIS data
Distributing CL, but limited user help
Remote running of CL on dedicated machine(s)
AMDA for event search, catalogue building, statistics on “simple” THEMIS and complementary data
Coupling AMDA event search and CL (and any other softwares or system: CDAWeb, UCB, …) by exporting time-tables
Some examples:AMDA + CL (or other softwares):1) Users produces time-tables on AMDA based on their own
defined criteria applied on the content of the data they selected2) Time-tables sent to CL3) Users browse user-defined plots on the periods of the time-
tables and then run detailed analysis on CL
SSCWeb + AMDA:1) Users produces time-tables on SSCWeb based on criteria
applied on the orbitography and conjonctions.2) Time-tables sent to AMDA3) Users produces secondary time-tables on AMDA based on
criteria applied on the content of the data for the periods of SSCWeb time-tables
4) Then, these secondary time-tables are exported to detailed analysis softwares or are used inside AMDA for building catalogues, or …
Contacts
AMDA:[email protected]://cdpp.cesr.fr/ forum for feedback on the CDPP services (in french for now)
