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

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<ul><li><p>Werner Schmutz, PMOD/WRCStatus of the space weather experiments LYRA/PROBA2 and PREMOS/PICARD </p><p>PMOD/WRC COST 724 project:Short-term variability of the solar UV irradiance and its effects on the stratosphere and mesosphereCOST 724 MC meeting, Sofia 21.-25. May 2007</p></li><li><p>OverviewStatus &amp; ScheduleBrief overview LYRA/PROBA2 (shown previously)Brief overview PREMOS/PICRADApplication for Space Weather: Now-cast and short-term forecast of ozone in the middle atmosphere</p></li><li><p>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 2007-2008SODISM + PREMOS on PICARD will continue in the near UV and visual 2008/2009-2011</p></li><li><p>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 2008-2009SODISM + PREMOS on PICARD will continue in the near UV and visual 2009-2012</p></li><li><p>Future PMOD/WRCIrradiance MeasurementsC. Frhlich et al.SOVIM/ISS2007(?) - 2010J.-F. Hochedez et al.LYRA/PROBA22008 - 2009W. Schmutz et al. PREMOS/PICARD2009 - 2012</p></li><li><p>Future PMOD/WRCIrradiance MeasurementsTSI &amp; opticalTSI &amp; opticalUV &amp; FUVTSI &amp; UV &amp; optical</p></li><li><p>Filter Radiometers:</p><p>LYRA/PROBA2 (launch 2008)PREMOS-PFR/PICARD (launch 2009)LYRA: 10 (Zr), 30 (Al), 125,215 nmPREMOS: 215, 268, 535, 607, 782 nm</p></li><li><p>PICARD</p><p>PREMOS SOVAP SODISMTotal Solar IrradianceFilter Radiometers</p></li><li><p>LYRAUV radiometerPI: JF HochedezLYRA.oma.beSWAPEUV imager at 17.5 nmPIs: D Berghmans &amp; JM DefiseSWAP.oma.be</p><p>SunPROBA2: Two solar instruments</p></li><li><p>LYRA3 units12 detectors24 LEDs315.0 x 92.5 x 222.0 mm~A4 size</p><p>5.0 kg1 unit = 4 wavelength channels</p></li><li><p>Filter &amp; detector responseVUV tests and calibrations made at the Berlin Electron Storage Ring (BESSY) courtesy to ROB, MPS &amp; PTB (Physikalisch-Technische Bundesanstalt)30 nm10 nmLy a200 nm</p></li><li><p>UV influence on the terrestrial atmosphereOzone mixing ratio changes (%) due to a 10% increase of the spectral solar flux in 1 wavelength bin (1 nm). Ozone Herzberg band 210 nmOzone band 270 nmLy a30 km: level of max. ozone change</p></li><li><p>COST 724 project ideaEvaluate the response of the middle atmosphere to the solar UV irradiance variability LYRA2008-2009Instrumenton PROBA2(built by PMOD/WRC)Chemistry ionosphereclimate model(CICM)extension of CCM SOCOL(Egorova et al.,2005)</p><p>Nowcast and short-term forecastof the neutral and ionic composition of the middle atmosphere</p><p>Statistical toolsfor nowcast and short-term forecast of the solar irradianceOn-line LYRA datafor space-weathercommunity monitoring 30 HzPREMOS2009 - 2012 Instrumenton PICARD(built by PMOD/WRC)Input from other WPs</p></li><li><p>Data flowLYRA measurements:6-hourly solar irradiance at115-125 nm (Lyman-)200-220 nm (Herzberg cont.)Spectral irradiance for other wavelengthsMeasurements of previous monthStatistical tools Spectral solar irradiance on model spectral grid for the next 6 hoursInput from other WPsInput from other WPs?</p></li><li><p>CICM SOCOLSOCOL : modeling tool to study SOlar-Climate-Ozone Links</p><p>General Circulation component (GCM): MA-ECHAM4 (Manzini &amp; McFarlane,1998)Chemistry/transport component (CTM) : MEZON (Egorova et al., 2003)Main properties: ~4x4 (T30); L390 - ~90 kmIncluded all relevant physical, dynamical and chemical processesSimulates wind, temperature, 43 neutral and 48 charged species</p></li><li><p>Experimental setupSpectral solar irradiance on model spectral grid for the next 6 hoursInitial fields for 10 ensemble members10-member model ensemble runfor the next 6 hoursModel output for the next 6 hoursInitialization fields forthe next period</p></li><li><p>Output dataMixing ratio of the neutral species and electrons, negative and positive ion densityfor the 6 hour period after the last LYRA measurementand their statistical properties O+, O2+, O4+, N+, NO+, N2+, H2O2+, H3O+,O2+N2, O2+H2O, H3O+OH, NO+H2O, NO+(H2O)2, NO+(H2O)3, NO+CO2, NO+N2, NO+H2OCO2, NO+H2ON2, NO+(H2O)2CO2, NO+(H2O)2N2, H+(H2O)2, H+(H2O)3, H+(H2O)4, H+(H2O)5, H+(H2O)6, H+(H2O)7, H3O+CO2, H3O+N2, H+(H2O)2CO2, H+(H2O)2N2e,O, O2, O3, O4, OH, CO3, CO4, NO2, NO3, HCO3, ClO, Cl, CH3,O2H2O, NO3H2O, CO3H2OO3 , O* , O , O2*, NO, HO2, ClO, NO2 , OH, NO3, N2O5, HNO3,HONO3, ClONO2, Cl, N, N*, H2O2, H, HOCl, Cl2, Cl2O2, HCl ,Br, CH2O, BrO, HBr, HOBr, BrNO3, BrCl, CH3, CH3O2, CH3O, HCO, CH3O2H, H2O, CFC-11, CFC-12, N2O, CH4, CO, H2, CBrF3</p></li><li><p>Model sensitivity to the changes of the solar spectral irradiance from minimum to the maximum of the solar activity Positive ionsNegative ionsand electronsNeutralsGraphs: Exp1-Exp2</p><p>Solar maximum with GCR at min + NO ionizationSolar minimum control with GCR at max + NO ionization</p></li><li><p>Comparison 3D simulation and observations: signal of 27-day solar cycle in ozoneSUSIM data SOCOL calculationsMicrowave Radiometer SOMORA :Data provided byBern UniversityGroup of N.KmpferRed: Ly-alphaBlue: Herzberg (scaled) </p></li><li><p>Thank you for your attention!Integration of LYRA on PROBA2 5.3.2007Silvio KollerLYRA PM</p><p>Equivalent or rather complementaryTechnology demonstration for solar orbiterEquivalent or rather complementaryTechnology demonstration for solar orbiter</p></li></ul>