Leif Svalgaard's Research Page
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Preprints and reprints

Most Recent IMF, SW, and Solar Data.pdf (updated regularly - 9 Jun.) Sector Structure 1926-present.txt (IMF sector structure polarity) reverse order Sector Boundary List 1926-present.txt (IMF sector boundaries) reverse order WSO-SS.gif (Animation) Wilcox Solar Observatory Movie of Magnetic Field on Source Surface Notes on Geomagnetic Activity (From Climate Audit) ------- IAGA2008LS.pdf (Keynote Talk: XIII IAGA Workshop, Golden, CO, 2008) AGU Spring 2008 GP53A-07.pdf (Invited Talk: IHV and IDV Indices: Derivation and Stability, 2008) AGU Spring 2008 SP23A-07.pdf (Sunspot Number Calibration by the Magnetic Needle Makes Sense, 2008) New Solar Cycle Not Packing Much Punch.pdf (Livingston & Penn, 2008) MgII-and-UV.xls (Comparisons MGII and UV, f10.7, 2008) Seminar-UCLA-ESS288.pdf (Seminar at UCLA, 2008) ast10867.pdf (On the solar rotation and activity, Brajsa et al., Astr. Nachr., 2008) Seminar-LMSAL.pdf (Seminar at LMSAL, 2008) Solar Polar Fields Normalized to Next Cycle.pdf (Updated prediction basis, 2008) TSI From McCracken HMF.pdf (TSI Reconstruction 1428-2005, Santa Fe, SORCE 2008) TSI (Reconstructions).xls (TSI Reconstructions 1700-present, 2008) [as text, as PDF] GC31B-0351-F2007.pdf ((No?)Century-scale Secular Variation in HMF, EUV, or TSI; AGU Fall 2007) SH13A-1109-F2007.pdf (Geomagnetic Underpinning: Wolf's Sunspot Number; AGU Fall 2007) De maculis in Sole observatis.pdf (Showing that Waldmeier introduced a jump in Rz, 2007) TSI-LEIF.pdf (My version of TSI, 2007) Comment on McCracken.pdf (HMF 1428-2005, Submitted to JGR 2007). Response to Reviewer CAWSES - IMF, EUV, TSI.pdf ( CAWSES Newsletter: vol 4, issue 2, 2007) Interhourly variability index of geomagnetic activity.pdf (IHV-Index Definition, JGR 2007) Consensus IMF B.pdf (Svalgaard & Cliver vs. Rouillard et al. , 2007) How we determine solar wind parameters for the past 150 years.pdf (Seminar at AFRL, Aug. 2007) MWO MPSI - F107.pdf (Calibration of MWO Magnetic Data, 2007) The Open Flux Has Been Constant Since 1840s (SHINE2007).pdf (Invited talk SHINE 2007) SOLIS-WSO Disk Analysis.pdf (Work in progress, 2007) Analysis of K=0 and 1 for aa and NGK.pdf (Work in progress, 2007) SSN Validation-Reconstruction (Cliver).ppt (Talk by Ed Cliver at Perugia, 2007 ( PDF-version )) AGU Spring 2007 SH54B-02.pdf (Calibrating Sunspot Numbers Using the Magnetic Needle) AGU Spring 2007 SH54B-03.pdf (Continuous Long-Term Record and Magnetic Storm Occurrence and Intensity, J. Love) Solar Wind at Earth 1883-2007.pdf (Comparison S&C and R,L,&F) Solar Mean Field 2003.pdf (Comparison WSO, MWO, SOLIS, CrAO observatories) Cycle 24 A(t) Index.pdf (Tlatov's A(t) Index, through Apr., 2007) When is Minimum.pdf (Sunspot Prediction Workshop for Cycle 24, Boulder 2007) Geomagnetic Precursor Minimum Method.pdf (Sunspot Prediction Workshop for Cycle 24) MgII Calibration.pdf (MgII wrong after 1st Jan. 2002, 2007) A Floor in the Solar Wind Magnetic Field.pdf (ApJ Letters 2007) Nobeyama Polar Fields 1993-2006.pdf (updated regularly) CAWSES - Sunspots.pdf (CAWSES Newsletter, vol 4, issue 1, 2007) Scattered Light Influence on Magnetic Field at WSO.pdf (Work in Progress) Percolation and the Solar Dynamo.pdf (Schatten's percolation model ApJS 2007) Hinode Movie Grow-N-Crash Prediction Model.pdf (Panel, Boulder 2006) Polar Fields and Cycle 24 (Observations).pdf (Panel, Boulder 2006) AGU Fall 2006 SH21A-0313.pdf (A Floor in the Open Flux IMF Strength Constant in Time (Centuries) and Space (Latitude)?) IHV(rot) years 1844-2006.xls (Geomagnetic Activity Bartels Rotations) IDV yearly means 1872-2006.xls (IDV-index and derived IMF B) Hathaway peaks.pdf (Geomagnetic precursor; Panel, Boulder, 2006) Hemispheric analysis of PF and SSN.pdf (Boulder Workshop homework, 2006) Long-term geomagnetic indices - solar wind in the past.pdf (Crippled Version of Sinaia Talk, AdvSpRes 2007) . Long-term geomagnetic indices - solar wind in the past.pdf (Full Version of Sinaia Talk 2006) Physics-based Long-term Geomagnetic Indices.pdf (Invited talk [Leif], ISSC2 - Sinaia, Romania, 2006) The Solar Wind During Grand Minima.pdf (Invited talk [Ed], ISSC2 - Sinaia, Romania, 2006) Polar Fields and Nobeyama 17 GHz Radio Flux.pdf (work in progress) Cycle 24 Predictions SHINE 2006.pdf (Invited talk, SHINE 2006) Solar Magnetographs SHINE 2006.pdf (Invited talk, SHINE 2006) AGU Spring 2006 SH51A-06.pdf (IMF B 1902-1912 from polar cap) POES Power and IHV.pdf (Space Weather Week, 2006) Polar Fields and Cycle 24.pdf (Space Weather Week, 2006) Dikpati Referee Report.pdf (My Referee's Report on Dikpati et al., GRL 2006) Reply to Lockwood's IDV Comment.pdf (The Comment may or may not be here) Fair Space Weather - Cycle 24.pdf (Schatten's prediction GRL 2005) Cycle 24 Prediction Lund.pdf (Lund, 2005) AGU Fall 2005 SA12A-04.pdf (Re-derivation of Dst Index) Cycle 24 Smallest 100 years.pdf (Prediction of Cycle 24 GRL 2005) Comment on Dst paper by K and M.pdf (unpublished manuscript 2005) AGU Spring 2005 SH23C-05.pdf (Magnetograph "saturation") 1859 Storm - Extreme Space Weather.pdf (Solar Physics 2004) Comment on Clilverd et al Reconstructing aa.pdf (unpublished manuscript 2004) AGU Fall 2004 SM41A-02.pdf (Semiannual Variation: protons or photons) The IDV index - its derivation and use.pdf (JGR 2005, IMF B 1872-2004) Semiannual Variation 1954 and 1996.pdf (AnGeo 2004) Asymmetric Rosenberg-Coleman Effect.pdf (GRL 2004) No Increase VxB Since 1926.pdf (JGR 2004. From polar cap stations) IHV-Index (JGR - Version 1).pdf (IHV-Index Definition. Rejected by JGR 2003) Determination IMF, SW, EUV, 1890-2003.pdf (Invited talk, ISCS, Slovakia 2003) No Doubling of Open Flux.pdf (Rejected by Nature, 2003) IHV - a new long-term geomagnetic index.pdf (COSPAR 2002) No Doubling.pdf (of Sun's open magnetic flux; unpublished manuscript 2002) The semiannual variation of great geomagnetic storms.pdf (GRL 2002) Sun's Poloidal and Toroidal Magnetic Field.pdf (Solar Phys. 1979) Using Dynamo Theory to Predict Solar Cycle 21.pdf (Schatten, Scherrer, Svalgaard, Wilcox, Solar Phys. 1978) The Strength of the Sun's Polar Fields.pdf (Solar Phys. 1978) A View of Solar Magnetic Fields, the Solar Corona, and the Solar Wind in Three Dimensions.pdf (1978 Review) Geomagnetic Activity: Dependence on Solar Wind Parameters.pdf (6 Mb; SUIPR 699; Coronal Hole Workshop) Anomalous Cosmic-Ray Anisotropy, 1954.pdf (Ester Antonucci, 1976) The Hale Solar Sector Boundary.pdf (Solar Phys. 1976) Long-term Evolution of Solar Sector Structure.pdf (Solar Phys. 1975) Atlas of IMF Polarity 1947-1975.pdf (5 Mb; SUIPRs 629 and 648) On the Use of Godhavn for IMF Polarity.pdf (JGR 1975)