1. 23.5.2007 Werner Schmutz, PMOD/WRC Status of the space weather experiments LYRA/PROBA2 and PREMOS/PICARD PMOD/WRC COST 724 project: Short-term variability of the solar UV irradiance and its effects on the stratosphere and mesosphere COST 724 MC meeting, Sofia 21.-25. May 2007

2. 23.5.2007 Overview Status & Schedule Brief overview LYRA/PROBA2 (shown previously) Brief overview PREMOS/PICRAD Application for Space Weather: Now-cast and short-term forecast of ozone in the middle atmosphere

3. Summary (Status as of Antalya 27.-30. 3.06) SWAP (0.1 Hz) + LYRA (60 Hz) on PROBA2 provide the EUV equivalent in Europe of the NOAA SXI + GOES X-ray monitor  2007-2008 SODISM + PREMOS on PICARD will continue in the near UV and visual  2008/2009-2011

4. Summary (Status as of today 23.5.07) SWAP (0.1 Hz) + LYRA (60 Hz) on PROBA2 provide the EUV equivalent in Europe of the NOAA SXI + GOES X-ray monitor  2008-2009 SODISM + PREMOS on PICARD will continue in the near UV and visual  2009-2012

5. 23.5.2007 Future PMOD/WRC Irradiance Measurements C. Fröhlich et al.SOVIM/ISS 2007(?) - 2010 J.-F. Hochedez et al.LYRA/PROBA2 2008 - 2009 W. Schmutz et al. PREMOS/PICARD 2009 - 2012

6. 23.5.2007 Future PMOD/WRC Irradiance Measurements today TSI & optical UV & FUV TSI & UV & optical

7. 23.5.2007 Filter Radiometers: LYRA/PROBA2 (launch 2008) PREMOS-PFR/PICARD (launch 2009) 215 LYRA: 10 (Zr), 30 (Al), 125,215 nm 215 PREMOS: 215, 268, 535, 607, 782 nm

8. 23.5.2007 PICARD PREMOS – SOVAP – SODISM Total Solar Irradiance Filter Radiometers

9. 23.5.2007 LYRA –UV radiometer –PI: JF Hochedez –LYRA.oma.be SWAP –EUV imager at 17.5 nm –PIs: D Berghmans & JM Defise –SWAP.oma.be Sun PROBA2: Two solar instruments

10. 23.5.2007 LYRA 3 units 12 detectors 24 LEDs … 315.0 x 92.5 x 222.0 mm ~A4 size 5.0 kg 1 unit = 4 wavelength channels

11. 23.5.2007 Filter & detector response VUV tests and calibrations made at the Berlin Electron Storage Ring (BESSY) courtesy to ROB, MPS & PTB (Physikalisch- Technische Bundesanstalt) 30 nm 10 nm Ly  200 nm

12. 23.5.2007 UV influence on the terrestrial atmosphere Ozone mixing ratio changes (%) due to a 10% increase of the spectral solar flux in 1 wavelength bin (1 nm). Ozone Herzberg band 210 nm Ozone band 270 nm Ly  30 km: level of max. ozone change

13. 23.5.2007 Evaluate the response of the middle atmosphere to the solar UV irradiance variability LYRA2008-2009Instrument on PROBA2 (built by PMOD/WRC) Chemistry ionosphere climate model (CICM) extension of CCM SOCOL (Egorova et al.,2005) Nowcast and short-term forecast of the neutral and ionic composition of the middle atmosphere Statistical tools for nowcast and short-term forecast of the solar irradiance On-line LYRA data for space-weather community  monitoring 30 Hz COST 724 project idea PREMOS 2009 - 2012 Instrument on PICARD (built by PMOD/WRC) Input from other WPs

14. 23.5.2007 LYRA measurements: 6-hourly solar irradiance at 115-125 nm (Lyman-) 200-220 nm (Herzberg cont.) Spectral irradiance for other wavelengths Measurements of previous month Statistical tools Spectral solar irradiance on model spectral grid for the next 6 hours Data flow Input from other WPs Input from other WPs?

15. 23.5.2007 SOCOL : modeling tool to study SOlar-Climate-Ozone Links General Circulation component (GCM): MA-ECHAM4 (Manzini & McFarlane,1998) Chemistry/transport component (CTM) : MEZON (Egorova et al., 2003) GCM CTM Winds and temperature H 2 O (troposphere) Ozone H 2 O(stratosphere) Main properties: ~4ºx4º (T30); L39 0 - ~90 km Included all relevant physical, dynamical and chemical processes Simulates wind, temperature, 43 neutral and 48 charged species CICM SOCOL

16. 23.5.2007 Spectral solar irradiance on model spectral grid for the next 6 hours Initial fields for 10 ensemble members 10-member model ensemble run for the next 6 hours Model output for the next 6 hours Initialization fields for the next period Experimental setup

17. 23.5.2007 Mixing ratio of the neutral species and electrons, negative and positive ion density for the 6 hour period after the last LYRA measurement and their statistical properties O +, O 2 +, O 4 +, N +, NO +, N 2 +, H 2 O 2 +, H 3 O +,O 2 + ∙N 2, O 2 + ∙H 2 O, H 3 O + ∙OH, NO + ∙H 2 O, NO + ∙(H 2 O) 2, NO + ∙(H 2 O) 3, NO + ∙CO 2, NO + ∙N 2, NO + ∙H 2 O∙CO 2, NO + ∙H 2 O∙N 2, NO + ∙(H 2 O) 2 ∙CO 2, NO + ∙(H 2 O) 2 ∙N 2, H + ∙(H 2 O) 2, H + ∙(H 2 O) 3, H + ∙(H 2 O) 4, H + ∙(H 2 O) 5, H + ∙(H 2 O) 6, H + ∙(H 2 O) 7, H 3 O + ∙CO 2, H 3 O + ∙N 2, H + ∙(H 2 O) 2 ∙CO 2, H + ∙(H 2 O) 2 ∙N 2 e¯,O¯, O 2 ¯, O 3 ¯, O 4 ¯, OH¯, CO 3 ¯, CO 4 ¯, NO 2 ¯, NO 3 ¯, HCO 3 ¯, ClO¯, Cl¯, CH 3 ¯,O 2 ¯∙H 2 O, NO 3 ¯∙H 2 O, CO 3 ¯∙H 2 O O 3, O *, O, O 2 *, NO, HO 2, ClO, NO 2, OH, NO 3, N 2 O 5, HNO 3,HONO 3, ClONO 2, Cl, N, N *, H 2 O 2, H, HOCl, Cl 2, Cl 2 O 2, HCl,Br, CH 2 O, BrO, HBr, HOBr, BrNO 3, BrCl, CH 3, CH 3 O 2, CH 3 O, HCO, CH 3 O 2 H, H 2 O, CFC-11, CFC-12, N 2 O, CH 4, CO, H 2, CBrF 3 Output data

18. 23.5.2007 Positive ions Negative ions and electrons Neutrals Graphs: Exp1-Exp2 1)Solar maximum with GCR at min + NO ionization 2)Solar minimum control with GCR at max + NO ionization Model sensitivity to the changes of the solar spectral irradiance from minimum to the maximum of the solar activity

19. 23.5.2007 SUSIM data SOCOLcalculations Microwave Radiometer SOMORA : Data provided by Bern University Group of N.Kämpfer Red: Ly-alpha Blue: Herzberg (scaled) Comparison 3D simulation and observations: signal of 27-day solar cycle in ozone

20. Thank you for your attention! Integration of LYRA on PROBA2 5.3.2007 Silvio Koller LYRA PM