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Indices and proxies for space weather

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Presentation on theme: "Indices and proxies for space weather"— Presentation transcript:

1 Indices and proxies for space weather
WRAP UP SPLINTER SESSION 1 Indices and proxies for space weather M. Messerotti, I. Tsagouri, D. Boteler 5th ESWW, 20 November 2008, Bruxelles

2 PARTICIPANTS 50 + 5th ESWW, 20 November 2008, Bruxelles

3 S-T Physical Domains HELIOSPHERE HELIOSPHERE GCR GCR INNER CORE
SOLAR DYNAMO SUBPHOTOSPHERE PHOTOSPHERE CHROMOSPHERE CORONA EXTENDED CORONA SOLAR WIND CME SCR MAGNETOSPHERE RADIATION BELTS ATMOSPHERE IONOSPHERE HYDROSPHERE LITHOOSPHERE HELIOSPHERE 5th ESWW, 20 November 2008, Bruxelles

4 S-T Indices and Proxies
5-min electron fluence 5-min proton fluence 3-h K indices 24-h A index Dst index Solar Wind Pressure Solar Wind Speed Solar Wind Density Energetic particle belt indices Hemispheric power index Sunspot number Mean magnetic field MgII core-to-wing index Daily X-ray background 1-min SXR flux Optical flare count SXR flare count Daily 2800 MHz radio flux EUV E10.7 index Hourly fixed frequ. radio flux Ionospheric T index Neutron fluence GIC index 5th ESWW, 20 November 2008, Bruxelles

5 KEY ISSUES PARAMETERS’ HYPERSPACE COVERAGE CHARACTERISTICS
DESCRIPTION LEVEL NEW INDICES & PROXIES CHARACTERISTICS PHYSICAL CONSISTENCY RELIABILITY QUALITY SAMPLING RATE AVAILABILITY STANDARDISATION PREDICTABILITY FEASIBLE RELIABLE IMPROVABLE 5th ESWW, 20 November 2008, Bruxelles

6 MAJOR OUTCOMES STANDARD FOR INDICES EXIST IF INDICES ARE SATISFACTORILY COPED WITH BY VALIDATED MODELS (NO SHORT-TERM VARIATIONS ARE WELL REPRODUCED) NO STANDARDS ARE SET FOR PREDICTION METHODS AS THEY ARE CONSIDERED NOT MATURE YET NEW INDICES SHOULD BE ADOPTED WITH CAUTION TO MINIMIZE THE TOTAL AMOUNT INDICES TUNED ACCORDING TO THE USERS’ NEEDS ARE OFTEN UNAVAILABLE 5th ESWW, 20 November 2008, Bruxelles

7 FUTURE NEEDS Activity prediction methods are needed and short-term variations should get more attention Especial attention should be paid to users’ inputs about specific requirements for operational applications New indices should be adopted based on a well-verified and clear physical context Long-term availability of validated indices is requested 5th ESWW, 20 November 2008, Bruxelles

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