1. Annual Meeting STCE – 7 June 2011 Welcome to the annual meeting of the

2. Annual Meeting STCE – 7 June 2011 Programme 09:00 Welcome breakfast Appetiser session 09:30 Picard - hot newsSteven Dewitte 10:00 Space Situational Awareness - opportunities for the STCEWerner Verschueren 10:05 The STCE – Highlights & PerspectivesRonald Van der Linden The real work: wrap up of workshops 10:30 Retrieval of Aerosol properties from Satellite and Ground-based measurements Svetlana Kochenova 10:50 Radio ScienceHervé Lamy 11:10 Coffee Break 11:30 Water vapour, meteorology and climateEric Pottiaux 11:50 Accessing and exploiting SDO dataVeronique Delouille 12:10 Ionospheric research & services: present status and future development Nicolas Bergeot 12:30 Alfven waves in Space PlasmaAndrei Zhukov Informal part 12:50 Lunch - food & drinks

3. Annual Meeting STCE – 7 June 2011 STCE Highlights

4. Annual Meeting STCE – 7 June 2011 STCE Highlights STCE coordinator & EPO officers activities

5. Annual Meeting STCE – 7 June 2011 7 th European Space Weather Week +/- 250 participants worldwide participation Bruges, 15-19/11/2010

6. Annual Meeting STCE – 7 June 2011 8 th European Space Weather Week Will be in Namur 28/11/2011 – 02/12/2011

7. Annual Meeting STCE – 7 June 2011 The Planeterella Experience Jean Lilensten’s famous project Demonstrated at ESWW7 STCE’s copy to be constructed by end 2011 May be part of the Exhibition in the Royal Palace in July-August 2011

8. Annual Meeting STCE – 7 June 2011 STCE @ Le Bourget

9. Annual Meeting STCE – 7 June 2011 STCE supports new Journal of Space Weather and Space Climate Open access journal Resulted from COST ES0803 STCE support through editorial office @STCE several members of STCE in editorial board & advisory board

10. Annual Meeting STCE – 7 June 2011 BRAMS radio meteor network Goal: –Detect forward radio wave reflections off meteor ionization trails –Doing that for a network of stations allows to trace the trajectory, speed, mass of the incoming particles, and provides information about upper atmosphere density, wind, metal content … BRAMS includes –A radio beacon at Dourbes, operating at 49.97 MHz, 150 W, circular polarization –20-30 receiving stations in various degrees of readiness –An interferometer at Humain –A data archiving and processing facility beacon receiver in Ukkel forward scattering principle distribution of beacon and receiving stations BISA WP 2010 C.2: H. Lamy, S. Ranvier, E. Gamby, S. Calders, J. De Keyser + technical staff

11. Annual Meeting STCE – 7 June 2011 VLF antenna Goal: –Detect whistler waves produced by lightning at the opposite hemisphere as they travel through the plasmasphere –Whistler propagation tells you something about the state of the plasmasphere VLF antenna –50 m² magnetic loop antennas, one in the N-S and one in the E-W plane –Installed on a 12 m-high mast in Humain –within AWDAnet –“First light” a few weeks ago BISA WP 2010 C.2: S. Ranvier, E. Gamby, F. Darrouzet, J. De Keyser, H. Lamy + technical staff

12. Annual Meeting STCE – 7 June 2011 SPENVIS is still growing The Space Environment Information System (SPENVIS) is an ESA operational software for spacecraft designers which is developed and maintained at BIRA-IASB. 3073 active users in 2010 with an average of 450 active users per month and accumulating in total about 200 hours CPU. New release (4.6.4) in November 2010 with new additional tools including applications based on the GEANT4 toolkit such as GRAS and MAGNETOCOSMICS MAGNETOCOSMICS computes the trajectories of high energetic particles (GCR or SEP) through the Earth’s magnetosphere in order to compute cut-off rigidities. GRAS provides Monte Carlo simulation of the propagation of space radiation through an instrument or spacecraft. Contact SPENVIS Team (spenvis_team@aeronomie.be)spenvis_team@aeronomie.be BISA WP 2010 D.1 www.spenvis.oma.be

13. Annual Meeting STCE – 7 June 2011 1d2v simulation of auroral flux tube What happens in an auroral flux tube where there exists a potential difference between ionosphere and magnetosphere? –find the electric potential variation along the flux tube, i.e. find the parallel E-field; B-field = constant –VDFs of magnetospheric/ionospheric ions/electrons Vlasov simulation –magnetospheric equator at z = 0 (left) –ionosphere at z = 55000 km (right) –Upper panel: Electric potential. The black curve shows the potential at one instant in time; the red area shows its variability during 0.1 s. Half of the potential drop is concentrated in a thin double layer. –Lower panel: Plasma density. The thin solid/dashed curves show the density of particles of magnetospheric/ionospheric origin, with protons/electrons in red/blue. A steep density gradient develops at the position of the double layer. Challenge : computationally very demanding –Artificially modified dielectric constant –Non-uniform mesh in configuration space –Parallelism up to 36 processors on the plato computer. BISA WP 2010 C.1: H. Gunell, E. Gamby, J. De Keyser

14. Annual Meeting STCE – 7 June 2011 Suprathermal particles Continued study of the role of suprathermal particles Application to the exospheres of other planets Spectral solver for the Fokker- Planck equations Description by means of kappa distribution function Universal mechanism behind the formation of kappa distributions Study of the relation between suprathermal particles and plasma waves and turbulence BISA WP 2010 C.3: V. Pierrard, Y. Voytenko

15. Annual Meeting STCE – 7 June 2011 MHD/kinetic transition in Alfvénic turbulence Scenario: Alfvén turbulence is driven at large MHD scales; large-scale non-dissipative Alfvén waves interact nonlinearly and evolve anisotropically toward short wavelengths across the background magnetic field; anisotropic MHD turbulent cascade and corresponding ~ -5/3 spectra, terminated at ion kinetic length scales; both dissipative and dispersive effects come into play at ion kinetic scales; a significant fraction of the MHD cascade transforms into a weakly dispersive kinetic cascade at the first spectral kink; The steepest (-3 to -4) power law spectra are formed in a weakly dispersive sub-range; The weakly dispersive cascade transforms into a strongly dispersive cascade at the second spectral break below the ion gyroradius scale; shallower (-2 to -3) spectra are formed in the strongly dispersive sub-range  A double-kink pattern is formed in the MHD/kinetic transition by the spectral dynamics described above; this pattern is seen in high- frequency Cluster spectra, as in the figure BISA WP 2010 C.3: Y. Voytenko, J. De Keyser

16. Annual Meeting STCE – 7 June 2011 New model on ESWP: ENLIL New model on the European Space Weather Portal http://www.spaceweather.eu, as a result of the collaboration between BIRA-IASB and the Community Coordinated Modeling Center (CCMC, NASA GSFC, Greenbelt, USA). http://www.spaceweather.eu The ENLIL (Sumerian god of wind) code is developed by Dr. Odstrcil and is a numerical model for simulations of the ambient corotating solar wind as well as transient disturbances throughout the inner and mid heliosphere. The model is based on ideal magnetohydrodynamic (MHD) equations with the ratio of specific heats, usually chosen to be 1.5. The model is accessible through http://www.spaceweather.eu/ccmc- enlil. An extensive help page is available at http://www.spaceweather.eu/ccmc- enlil-help. http://www.spaceweather.eu/ccmc- enlil http://www.spaceweather.eu/ccmc- enlil-help Contact Stijn Calders (stijn.calders@aeronomie.be)stijn.calders@aeronomie.be BISA WP 2010 D.1: S. Calders, M. Kruglanski

17. Annual Meeting STCE – 7 June 2011 Solar activity resurrected The spots are back!

18. Annual Meeting STCE – 7 June 2011 Sun No planetary destruction on Jan 4, 2011 Despite lining up of Sun, Moon, Earth and PROBA2 Mo on Eart h

19. Annual Meeting STCE – 7 June 2011 The Sun in 3D Since Feb 2011, the two STEREO spacecraft can see the complete solar surface.

20. Annual Meeting STCE – 7 June 2011 We are not alone SOTERIA Capacity Building Workshop Feb 17- Feb 18 2011 PROBA2 Science Working Group Feb 19- Feb 20 2011

21. Annual Meeting STCE – 7 June 2011 The sun is a movie star SDO First light: April 20 2010 USET in Global H-alpha Network PROBA2 in full science phase since March 2010 > 328000 SWAP images, >200 Gb LYRA Golden age of observational solar physics: the Sun has never been imaged this much.

22. Annual Meeting STCE – 7 June 2011 New prospects: untrodden paths SN-1: Space weather assets database Upcoming: SN-IV: start of regular operations ESIO: successor to SWAP & LYRA? Virtual Space Weather Modelling Center High Performance Distributed Solar Imaging and Processing System …

23. Annual Meeting STCE – 7 June 2011 Serious stuff: External Challenges Solar Orbiter selection PROBA2 mission extension in SSA PROBA3 SSA: SN-IV, ESIO, SWVMC, …

24. Annual Meeting STCE – 7 June 2011 GNSS ↕ ionosphere/troposphere

25. Annual Meeting STCE – 7 June 2011 GNSS Sat. GNSS Rec. GNSS Sat. GPS + GLONASS + Galileo More sat. and more receivers  more radiosignals probing ionosphere/troposphere  Significant added-value for monitoring the ionosphere/ troposphere Networks of continuously observing GNSS ground stations: IGS, EUREF, national networks  Need to develop and extend these networks Monitoring the Earth’s Atmosphere with GNSS

26. Annual Meeting STCE – 7 June 2011 Ionosphere: Generation of TEC maps over Europe 0.5°x0.5° TEC maps over Europe (left) and their variance (right) in TECU estimated over 15 minutes in a near-real time TEC= Total Electron Content= main parameter characterising the ionosphere Basis for future service

27. Annual Meeting STCE – 7 June 2011 Correlation between Solar parameters and ionospheric state Correlations between of the daily Sunspot Number (SN) or F10.7 solar flux and the daily mean GNSS-based ionospheric TEC during the 23 rd solar cycle demonstrate that the correlations depend on -phase in the solar cycle -geographical location Ionospheric and Solar data during the 23 rd Solar Cycle. Bottom: daily mean global VTEC in TECU. Middle: Sunspot Number as delivered by SIDC. Top: F10.7 and F10.7P (mean F10.7 over 81 days) flux observed from Penticton radio telescope.

28. Annual Meeting STCE – 7 June 2011 STCE @ Antarctica Installation of GNSS station at Princess Elisabeth station GNSS measurements  monitor ionosphere over Antarctica Need for more data to get results

29. Annual Meeting STCE – 7 June 2011 Troposphere: monitoring using GNSS E-GVAP Service: Hourly monitoring of troposphere (amount of water vapour) over Europe  assimilation in numerical weather prediction models at UK Met. Office and Meteo France Focus on small structures in troposphere using dense network of Belgian GNSS network Comparison of water vapour retrieval using several observation techniques Climatology: long-term information on water vapour content (GNSS from 1996 on)

30. Annual Meeting STCE – 7 June 2011 Time Transfer and Radio Science Demonstration of usefulness of space weather products to understand ionospheric perturbations in GPS Time and Frequency Transfer (TFT) geomagnetic storm of 30th October 2003: the X17.2 and X10.1 events triggered geomagnetic storms (monitored by a K-index value higher than 5), leading to perturbations in the slant TEC (number of electrons/m2 along the signal path) and hence to an impact on TFT GNSS–based monitoring of the Earth’s neutral atmosphere and ionosphere and plasma changes induced by solar activity for radioscience experiments using spacecrafts communicating with the Earth through radio signals.

31. Annual Meeting STCE – 7 June 2011 Launch Picard, 15/6/2011, Yasni STCE instrument: Sovap+BOS Start measurements: 21/7/2010

32. Annual Meeting STCE – 7 June 2011 What is the value of the solar constant ? Workshop 12/2010 San Francisco between international TSI experts

33. Annual Meeting STCE – 7 June 2011 Earth radiative fluxes Reprocessed time series Nov 1978 to Sep 1999 from Nimbus 7, NOAA9, NOAA10 and ERBS satellites

34. Annual Meeting STCE – 7 June 2011 STCE = focus on joint activities Joint operations on space missions (PROBA2, PICARD) Joint operations on space missions (PROBA2, PICARD) Joint programming in Humain & Dourbes Joint programming in Humain & Dourbes Joint participation to SSA and related activities Joint participation to SSA and related activities Joint participation to EU projects: FP7 + COST Joint participation to EU projects: FP7 + COST Growth of common interests: exemplified in STCE workshops & STCE seminars Growth of common interests: exemplified in STCE workshops & STCE seminars

35. Annual Meeting STCE – 7 June 2011 International context in Space Weather Incorporation of Space Weather in WMO: ICTSW Inclusion of Space Weather in draft resolution of UNCOPUOS: LTSSA working groups ESA’s “Space Situational Awareness” programme & related activities enhanced attention of EU-FP7 programme

36. Annual Meeting STCE – 7 June 2011 Do not forget SCIENCE SUPPORTS SERVICES

37. Annual Meeting STCE – 7 June 2011 Thank you