Leif Svalgaard's Research Page
This page is under perpetual construction please come back...

Preprints and reprints by me

O ATS-Sunspot-Data (18th Century Optics Sunspot Observations) N TSI-Reconstruction-2014 (My Guess) data M Wiki for SSN Workshops (SSN Workshops Home page) L TSI-F10.7-MF-SSN-Solar Activity (Recent solar activity) (daily) (Hi-res) K Active-Region-Count-now (updated monthly) J Solar-Mean-Field-2003-now (updated regularly) I WSO-Polar-Fields-since-2003 (updated every 10 days) since 1966 G Sector-Structure-1926-present.txt (IMF sector structure polarity) reverse order F Sector-Boundary-List-1926-present.txt (IMF sector boundaries) reverse order E Neutron Monitors Long-Term Variation (From NWU, Zuid Afrika) DP WSO-Polar-Field-Movie.htm (Wilcox Solar Observatory Movie of Polar Fields) DS WSO-SS.gif (Animation) (Wilcox Solar Observatory Movie of Magnetic Field on Source Surface) ------- 3150 The Floor in Heliospheric Magnetic Field.pdf (Poster at AGU2023, Dec 2023) pptx 3140 Presentation-for-Dean.pdf (Status Report by the ISSI-417 Team, Feb 2023) 3130 https://doi.org/10.48550/arXiv.2301.02084 (Recalibration of the Sunspot Number: Status Report, Feb 2023) 3120 Making-a-Backbone.pptx (Make a Backbone), May 2022) 3110 Uniting-Hale-and-ESC.pdf (Research Square (McIntosh et al.), Nov. 2021) 3100 Reconstructing-Past-Solar-Cycles-for-Future.pdf (Space Research Today (Clette), Apr. 2021) 3090 Replicating-18th-Century-Solar-Observations.ppt (Seminar, Lisbon, May 2021) pdf 3080 Benfords-Law.png (Benford's law, May 2021) 3070 EGU21-282-Pop.ppt (Populations-of-Group-Numbers, Apr. 2021) pdf 3060 JWB-Telescope-Project.pdf (Antique Telescopes and Solar Group Count, Feb. 2021) 3051 How-to-Predict-Solar-Cycle-25.ppt (Ham-SCI Workshop, Feb. 2021) pdf 3050 How-to-Predict-SC-25.ppt (FARS Meeting, Jan. 2021) pdf 3040 HMI-2010-09-07.gif (GIF Movie of HMI Sun, varying pixel size from 1" to 120", Nov. 2020) 3030 Sunspots-with-Ancient-Telescopes-for-SC25.ppt (ATS Annual Conference, Nov. 2020) pdf 3020 Several-Populations-of-Group-Numbers.pdf (Group Numbers Ready for Prime Time, JSWSC, Nov. 2020) 3010 Calibration-SN-GN-Using-Waldmeier-Effect.pdf (Using Waldmeier Effect, Nov. 2020) 3000 Prediction-SC-25-JSWSC.pdf (Prediction of Solar Cycle 25, JSWSC, Oct. 2020) 2990 Geomag-Rot-Radiative-Interior.pdf (Geomagnetic Measurement of Sun Radiative Interior, Work in progress, Sept. 2020) 2980 Three-Centuries-of-Solar-Activity-Update.ppt (Lockheed-Martin, July, 2020) pdf 2970 Daily-Variation-HMI-LOS-Magnetic-Field.ppt (Work in Progress, Mar. 2020) 2960 Three-Centuries-of-Validated-Sunspot-Group-Numbers.ppt (Sun-Climate-Symposium, Tucson, Jan. 2020) pdf 2950 Validation-Group-Sunspot-Series.ppt (Sun-Climate-Symposium, Tucson, Jan. 2020) pdf 2940 AGU-Fall-2019-WBB.pdf (AGU Fall, Dec. 2019) 2937 Three-Centuries-Monthly-GN.png (Three Centuries Group Numbers, 2019) pdf 2935 GN-rD-Oslo.png (Range of Declination and Group Number, 2019) 2930 Interocular-Comparisons-of-GN-Reconstructions.ppt (ISSI Talk 4, 2019) pdf 2920 On-Two-Populations-of-GN.ppt (ISSI Talk 3, 2019) pdf 2910 New-Backbone-Reconstructions-of-Sunspot-Group-Numbers.ppt (ISSI Talk 2, 2019) pdf 2900 Geomagnetic-Indicators-of-Solar-Activity.ppt (ISSI Talk 1, 2019) pdf 2890 History-of-Solar-Physics-Part-1.ppt (History Solar Phys. Part 1, 2019) pdf 2880 wso-fits.py (Convert WSO data to FITS, July 2019) example.fit example.fits plot1 plot2 plot3 2870 SC7-Nine-Mill-2019.ppt (Space Climate 7, Montreal, July 2019) pdf 2860 SC7-WBB-Poster.xls (Space Climate 7, Montreal, July 2019) pdf data 2850 Zharkova-2019-Fail.ppt (Stanford, June 2019) pdf 2840 ETH-Sunspot-Drawings.ppt (Stanford, June 2019) pdf 2830 New-View-Solar-Activity.ppt (Space Science at Stanford, May 2019) pdf 2820 Nine-Millennia-Solar-Activity.ppt (HAO seminar, April 2019) pdf 2810 Random-Solar-Cycles.ppt (Journal Club, 2019) pdf 2800 SNcont.py (2D Histogram of Daily Sunspot Numbers, March 2019) 2790 The-HMC-Index.ppt (Journal-Club, March 2019) 2780 Multi-Messenger-Solar-Physics-Through-Time.ppt (Seminar UCB, 2019) Talk pdf 2770 PT34123.pdf (Physics Today: Multimessengers, 2019) 2760 Radio-and-Sunspots.ppt (Dinner Talk, Ham Radio Club, Petaluma, 2019) pdf 2755 JGR-IDV-2019.pdf (Automatic Derivation of IDV [aborted draft], Jan. 2019) 2750 Calibration-TSI-Magnetic-Flux.pdf (Correcting Consensus TSI, 2018) data 2740 Nine-Millennia-of-Multimessenger-Solar-Activity.pdf (Multimessenger Solar Activity, 2018) data 2730 The-Mysterious-Polar-Fields.ppt (Polar Perspectives, Boulder 2018) long version pdf 2720 Multi-Messenger.pdf (Solar Activity Multi-Messengers, 2018) 2710 Prediction-of-SC25.ppt (Prediction SC25 - SORCE, Lake Arrowhead 2018) pdf 2700 Super-Synoptic-Maps-and-Polar-Fields.ppt (Super Synoptic Maps and Polar Fields, 2018) pdf 2690 Super-Synoptic-Maps-MDI-HMI.png (MDI-HMI Super Synoptic Map, 2018) pdf MDI-data HMI-data 2680 Re-analysis-Wolfer-Backbones.ppt (Part I, 2018) pdf 2670 MDI-HMI-Comparison.doc (Comparion Super-Synoptic Maps, 2018) pdf 2660 A-Super-Synoptic-Map-of-HMI-Flux-Density.pdf (HMI Nugget, 2018) 2650 SuperSyn-HMI.png (HMI Super Synoptic Map, 2018) Full Size 2645 comparative-study-solar-prediction.pdf (Workshop Draft - Nagoya 2017) 2640 Polar-Fields-and-Prediction-of-Solar-Cycle-25.doc (Polar Fields and SC25, 2017) pdf 2630 Conversion-Factor-MDI-to-HMI.pdf (MDI Calibration to HMI, 2017) 2620 AGU-2017-Fall-SH51C-2497.pdf (WSO Calibration Fixed [see 2510 and 2512], 2017) 2610 25-Cycles-Dipole-Moments.doc (HMI Nugget, 2017) pdf 2600 Observations-polar-magnetic-fields-and-Cycle-25-prediction.ppt (Univ. Nagoya, 2017) pdf 2590 ATS-at-MWO-2017.ppt (ATS 2017, at MWO, 2017) pdf 2580 The-Backbone-Reconstructions-Revisited.pdf (arxiv 1704.07061, 2017) 2570 IAGA-2017-1227-Solar-Activity.ppt (IAGA 2017, Cape Town, 2017) pdf 2560 IAGA-2017-1220-History-ST-Relations.ppt (IAGA 2017, Cape Town, 2017) pdf 2550 Defense-of-GN-Revisions.ppt (HAO Colloquium, 2017) pdf 2540 Assessment-Active-Days-Fraction-Method.pdf (arxiv 1706.01154, 2017) 2530 Spoerer-Not-Perfect-Observer.pdf (arxiv 1705.06089, 2017) data 2520 Sunspot-Group-Numbers-Since-1900.pdf (arxiv 1705.02024, 2017) data 2512 WSO-Mean-Field-Correction.ppt (WSO Calibration Fix, 2017) pdf 2510 WSO-Problem.ppt (WSO Calibration Problem, 2017) pdf 2500 w6yx-Talk.ppt (Radio, Ionosphere, etc, 2017) pdf 2490 The-Sunspot-Story-Continues.ppt (Digitalization of ETH Images, 2017) 2480 AGU-2016-Fall-SH31B-2548.ppt (Olsen Rotating Dipole Revisited, 2016) pdf 2470 Preface-Topical-Issue-Sunspot-Revision.pdf (Solar Phys. Topical Issue, 2016) 2460 EUV-F107-and-TSI-CDR-HAO.ppt (HAO-Colloquium, Boulder, 2016) pdf 2450 EUV-Magnetic-Field.ppt (SDO Meeting, Vermont, 2016) pdf 2445 RMIB-TSI-is-Correct-Since-1992.ppt (Stanford, 2016) pdf 2440 Comparison-Old-New-Sunspot-Numbers.pdf (Comparing Sunspot Series [Cliver], Solar Phys., 2016) 2430 Prediction-of-Solar-Cycles.ppt (For Phil's 70th Birthday, 2016) pdf 2420 Olsen-Rotating-Dipole-Revisited.ppt (Work in Progress, 2016) pdf data 2410 Comparing-UEA-and-SS.pdf (Reconciling Sunspot Group Series, 2016) 2400 For-Mesmerizing-the-Public.pdf (NASA, 2016) 2390 Press-Conf-Ancient-Telescope-Sunspots.pdf (SPD Meeting, Boulder, 2016) 2380 History-Development-Solar-Terrestrial-Relations.pdf (Geosciences Introduction, 2016) 2370 HMI-Nugget-1.pdf (HMI Nugget: F10.7 and Magnetic Flux, 2016) doc 2360 Non-Conforming-SC24.ppt (Work in Progress, 2016) pdf 2350 Debate-Material.ppt (Sunspot Debate in Levi, 2016) pdf 2340 Sunspots-with-Ancient-Telescopes.ppt (Work in progress, 2016) pdf 2330 Sunspot-Weighting-and-Group-Counting.ppt (6th Space Climate Symp., Levi, 2016) pdf data 2320 The-Waldmeier-Effect-Levi.ppt (6th Space Climate Symp., Levi, 2016) pdf 2310 Radial-Component-of-HMF.ppt (Stanford, 2016) pdf 2300 Comparing-HMI-WSO-Polar-Fields.ppt (HMI, WSO, 17GHz Polar Fields, Stanford, 2016) pdf 2290 The-Waldmeier-Effect.ppt (The Waldmeier Effect, NASA, 2016) pdf 2280 AGU-2015-Fall-SA51B-2398.ppt (Reconstruction of Solar EUV Flux 1740-2015, 2015) pdf 2270 New-Group-Number-and-TSI.ppt (SORCE, Savannah, 2015) pdf 2260 Recount-of-Staudach.pdf (Accepted Solar Phys. Topical Issue, 2015) data 2250 Antique-Telescopes-and-Sunspots.ppt (ATS Meeting, Lick Obs., 2015) pdf 2240 Climate-Change-My-View.pdf (My view on Climate Change, 2015) 2230 Revision-of-the-Sunspot-Number.pdf (Space Weather, 2015) 2220 Space-Weather-Palo-Alto-2015.ppt (Santa Clara County Emergency Managers Association, 2015) 2210 Recalibrating-the-Sunspot-Number-CEAB.pdf (CEAB, Cliver, 2015) 2205 The-Geo-Response-Extreme-Events.ppt (AOGS Singapore, 2015) pdf 2200 The-History-of-the-Sunspot-Number.ppt (AOGS Singapore, 2015) pdf 2190 The-July-Seminars-2015.ppt (HEPL, LMSAL, LASP, HAO, SWPC, 2015) pdf 2180 Effect-of-Sunspot-Weighting.pdf (Accepted Solar Phys. Topical Issue, 2015) 2170 Building-a-Relative-Sunspot-Number.pdf (A Proposed Relative SSN, 2015) yearly monthly daily Bartels Rot. 2160 Reconstruction-of-Solar-EUV-Flux-1740-2015.pdf (Accepted Solar Phys. Topical Issue, 2016) 2150 Reconstruction-of-Group-Number-1610-2015.pdf (Accepted Solar Phys. Topical Issue, 2016) data source 2140 Reconstruction-Solar-EUV-Flux-1781-2014.ppt (EGU, Vienna, 2015) pdf 2130 Radio-Ionosphere-Magnetism-and-Sunspots.ppt (SARA, Western Conference, 2015) pdf 2120 Discussion-of-Paper-MM-Not-So-Grand.ppt (Maunder Minimum Discussion, 2015) pdf 2110 Solar-Activity-and-the-Earth.ppt (Chinese Student-Visit, 2015) 2090 Solar-Sector-Structure.pdf (Space Science Reviews, 2015) 2080 Sunspot-Number-Corrections.pdf (Comment on Revised SSNs, 2014) 2070 AGU-2014-Fall-SH11D-07-2015-Revision-SSN.ppt (2015 Revision of Sunspot Number, 2014) pdf 2060 HMF-1835-2014-LWS.ppt (LWS, Portland, 2014) pdf 2055 Extended-Solar-Cycle.pdf (Cliver, Space Sci. Rev., 2014) 2050 Revisiting-the-Sunspot-Number-LWS.ppt (LWS, Portland, 2014) pdf 2040 Keynote-SCOSTEP-2014.ppt (Xi-an, China, 2014) pdf 2030 Reconstruction-Solar-EUV-Flux.ppt (Big Bear & NSO, 2014) pdf 2020 Sonoma-State.ppt (Lecture at Sonoma State, 2014) youtube 2010 HMF-1835-2014-Sapporo.ppt (AOGS Sapporo, 2014) pdf 2000 Revisiting-the-Sunspot-Number.pdf (Space Science Reviews, 2014) 1990 Report-on-Extreme-Space-Weather-Events-2014.ppt (ESWE II at Boulder, 2014) pdf 1980 Weighting-of-Sunspot-Counts.ppt (Weighting of SSN at Locarno, 2014) pdf 1970 Confronting-Models-with-Reconstructions-and-Data.ppt (ESWE Boulder, 2014) pdf 1960 The-Effect-of-Weighting-in-Counting-Sunspots-and-More.ppt (SSN4 Locarno, 2014) pdf 1950 Big-Bear.ppt (Big Bear Observatory Lecture, 2014) 1940 ISSI-Book-Section-4.pdf (Bern, 2014) 1930 Magnetic-Fields-at-Hale-Solar-Sector-Boundaries.ppt (Huntsville Workshop, Orlando, FL, 2014) pdf 1920 Goelzer-Paper-2014.ppt (Journal Club [Goelzer et al. paper], Stanford, 2014) pdf 1910 Goelzer-Comment.pdf (Submitted JGR, 2014) 1900 HMF-1835-2014-and-the-Sun.ppt (HMF B 1835-2014 and the Sun, Stanford, 2014) pdf 1890 AGU Fall 2013 SH23D-02.ppt (Large Solar Events in Historical Context, 2013) pdf 1880 17GHz-Hale-Animation.ppt (Animation of Response to Hale-Boundary, 2013) 1870 What-Geomagnetism-can-Tell-Us-about-the-Solar-Cycle.ppt (ISSI workshop, Bern, 2013) pdf 1860 Long-term-Variation-Solar-Activity.pdf (To be submitted swsc, 2014) 1852 IDV-from-Other-Sources.pdf (IDV from Daily Variations, 2014) 1850 Error-Scale-Values-HLS.pdf (Ann. Geophys., 2014) Review History 1845 Locarno-S-G-Ratio.pdf (Work in Progress, 2013) 1840 Magnetogram-Calibrations.pdf (Comparison and Calibration of Magnetograms, 2014) 1830 Using-Old-Geomagnetic-Data.ppt (Using Old Data to Assess Solar Activity, 2013) pdf 1820 Reflections-on-IDV.pdf (Error bars and new data for IDV, 2013) 1810 Scale-Value-H-Helsinki.pdf (Scale-values for Magnetometers Helsinki, 2013) 1800 NS-Sept-2013-Sunspots.pdf (New Scientist, 2013) 1790 Counting-Sunspots.ppt (Project ASTRO, San Mateo, 2013) pdf 1780 CEAB-Cliver-et-al-2013.pdf (Recalibrating the Sunspot Number: The SSN Workshops, 2013) 1770 Reconciling-Group-and-Wolf-Sunspot-Numbers.ppt (Reconciling GSN & SSN, Oulu, 2013) pdf 1760 Luft-Data-Mining.ppt (Herbert Luft's sunspot observations, Boston, 2013) pdf 1750 Synoptic-Observations.ppt (Long-term Solar Synoptic Measurements with Implications for the Solar Cycle, Boulder, 2013) pdf 1740 swsc130003.pdf (Solar Activity - Past, Present, and Future, SWSC 2013) includes review history; published version 1730 The-Origin-of-Magnetic-Fields.ppt (The Biermann Battery, 2013) pdf 1720 AMJ-100-Years-Polar-Fields.ppt (Calibrating 100 Years of Polar Faculae, 2013) pdf 1710 Group-Number-Backbone.ppt (Building a Sunspot Group Number Backbone Series, Tucson, 2013) pdf 1700 Vistas-in-Solar-Activity.ppt (Vistas in Solar Activity, Tucson, 2013) pdf 1690 The-Spots-That-Wont-Form.ppt (The Spots That Won't Form, Tucson, 2013) pdf 1680 Coupling-Function-AMS93.ppt (The Solar Wind - Magnetosphere Coupling Function, Austin, 2013) pdf 1670 AGU-Fall-2012-SH12A-07.ppt (Asymmetrical Solar Polar Field Reversals, 2012) pdf 1660 Solar-Petaluma--How Well Do We Know the SSN.ppt (Petaluma Poster, 2012) pdf 1650 apjl2012-Liv-Penn-Svalg.pdf (L&P Effect and F10.7, ApJL, 2012) 1640 Another-Maunder-Minimum.ppt (Nobeyama, Japan, 2012) pdf 1630 Solar-Predictions-Using-Nobeyama-Data.ppt (Nagoya, Japan, 2012) pdf 1620 On-Becoming-a-Scientist.ppt (Rikubetsu, Japan, 2012) pdf ( Japanese Version pdf ) 1610 Solar-Activity-Past-Present-and-Future.ppt (TIEMS Conference, Oslo, Norway, 2012) pdf pdf with notes 1600 Helioseismology-and-the-Helium-Abundance.ppt (Stanford, 2012) pdf 1590 TIEMS-Oslo-2012-Svalgaard.doc (TIEMS Conference, Oslo, Norway, 2012) pdf 1580 Disappearance-of-Visible-Spots.ppt (Mini Workshop, Sunspot, NM, 2012) pdf 1570 HAO-Seminar-How-Well-Do-We-Know-the-SSN.ppt (Seminar HAO and SWPC, 2012) pdf 1560 Solar-Wind-During-the-Maunder-Minimum.ppt (Seminar PSI, 2012) pdf 1550 Reconciliation-of-Group-and-International-SSNs-Croatia.ppt (Hvar Croatia, 2012) pdf 1540 Asymmetric-Solar-Polar-Field-Reversals-talk.ppt (Polar Field Reversals, talk at Stanford, 2012) pdf talking points 1530 ApJ88587.pdf (Asymmetric Polar Field Reversals, In press ApJ, 2012) Review History 1520 Reconstruction-of-Sunspot-Number.ppt (ISSI Workshop 233, 2012) pdf 1510 Reconciliation-of-Group-and-International-SSNs.ppt (Sunspot NM, 2012) pdf 1500 What-is-Wrong-with-GSN.ppt (Stanford, 2012) pdf 1490 The-long-term-variation-of-solar-activity.ppt (Nagoya Workshop: Sun-Climate, 2012) pdf 1480 AGU-Fall-2011-SH34B-08.ppt (Is Solar Activity Modulated by Astronomical Cycles? 2011) pdf 1470 Polar-Fields-in-17GHz.ppt (Stanford, 2011) pdf 1460 Correction-of-Systematic-Error-in-Nobeyama-17-GHz.pdf (Work in progress, 2011) 1450 Effect-of-Weighting-on-SSN.ppt (Seminar SSL, 2011) pdf 1440 How-Well-Do-We-Know-the-Sunspot-Number.ppt (IAU 286, Mendoza, 2011) pdf (published version) 1430 Rudolf-Wolf-and-the-Sunspot-Number.ppt (SSN Workshop I, 2011) pdf 1420 Geomagnetic-Calibration-of-Sunspot-Numbers.ppt (SSN Workshop I, 2011) pdf 1410 SSN-Workshop1-Weighting.ppt (Influence of Weighting, 2011) pdf 1400 The-Mean-Field-of-the-Sun.ppt (The Mean Field of the Sun, 2011) pdf 1390 Solar Sector Structure.ppt (Solar Sector Structure, Seminar LMSAL, 2011) pdf 1380 Helium.ppt (The Helium Story, 2011) pdf 1370 SSN-Workshop-2nd-Circular.pdf (Sunspot workshop I, Sunspot, NM, 19-22 Sept., 2011) 1360 SHINE-2011-The-Forgotten-Sun.ppt (Plenary Talk at SHINE 2011) pdf 1350 Svalgaard_ISSI_Proposal_Base.pdf (Award of ISSI Workshop, 2011) 1340 Livingston-Penn Data and Findings so far.ppt (Livingston-Penn Finding, 2011) pdf 1330 History and Calibration of Sunspot Numbers.ppt (Sunspot Number Series, IUGG XXV, 2011) pdf 1320 Solar-Rotation-SOHO-EIT.pdf (Solar Rotation, 2011) 1310 Livingston-Poster.jpg (L&P Effect, poster SPD, 2011) 1300 Semiannual-Comment.pdf (The Semiannual Variation is not Overestimated, Accepted GRL 2011) Review History 1290 HMI-Livingston-Comparison.pdf (Comparison HMI - Livingston magnetic fields, Work in Progress, 2011) 1280 Sunspot-Calibration.pdf (Calibration of Sunspot Number, Work in Progress, 2011) 1270 SIDC-Seminar-12Jan.ppt (Calibration of Sunspot Number, II, 2011) pdf 1260 AGU Fall 2010 SH53B-03.ppt (Objective Calibration of Sunspot Numbers, 2010) pdf 1250 Eddy-Symp-Poster-2.ppt (Does the Sun Vary Enough?, 2010) pdf 1240 Eddy-Symp-Poster-1.ppt (Calibration of Sunspot Number, 2010) pdf 1230 Hale-Flares.pdf (Flaring Solar Hale Sector Boundaries, ApJ, 2011) 1220 Hale-Nugget.pdf (Hale boundaries and Solar Flares, 2010) 1210 SIDC-Seminar-14Sept.ppt (Calibration of Sunspot Number, 2010) pdf 1200 Waldmeier.pdf (Calibration of Sunspot Number, submitted GRL, rejected, 2010) Review History 1190 Hale Sector Boundaries.pdf (Hale Boundaries, work in progress, 2010) 1180 SHINE-2010-Microwave-Flux.ppt (SHINE Workshop, Santa Fe, NM, 2010) pdf 1170 Two-Centuries-Space-Weather.ppt (Birkeland Wshop, Tromsø, 2010, Invited) pdf 1160 Does-The-Sun-Vary-Enough.ppt (Birkeland Wshop, Tromsø, 2010, Invited) pdf 1150 PMOD TSI-SOHO keyhole effect-degradation over time.ppt (SORCE, Keystone, CO, 2010) pdf 1140 Heliospheric Magnetic Field 1835-2010.ppt (SORCE, Keystone, CO, 2010) pdf 1130 Predicting the Solar Cycle (SORCE 2010).ppt (SORCE, Keystone, CO, 2010, Invited) pdf 1120 AGU Fall 2009 SH13C-03.ppt (Solar Radio Microwave Flux and Sunspot Numbers, 2009) pdf 1110 Rudolf Wolf Was Right.ppt (Seminar UC Berkeley, Dec. 2009) pdf 1100 Solar-Microwaves-at-23-24-Minimum.ppt (Hinode Science Meeting, Tokyo, 2009) pdf 1090 Historical Solar Cycle Context.ppt (WHI II Workshop, Boulder, 2009) pdf 1080 Heliospheric Magnetic Field 1835-2009.pdf (JGR, 2010) Review history   (Data Archive, 450 MB) 1075 Solar-Flux-and-Sunspot-Number.pdf (SOHO-23, Asticou, 2009) 1070 Updating-the-Historical-Sunspot-Record.ppt (SOHO-23, Asticou, 2009) pdf   journal version (pdf) 1060 Predicting the Solar Cycle.ppt (Solar Analogs II, Lowell, 2009) pdf 1050 H02-FRI-O1430-0550.ppt (Geomagnetic Indices, IAGA, Sopron, 2009) pdf 1040 SPD-2009.pdf (The Waldmeier Discontinuity, 2009) 1030 Reduction of Spatially Resolved Magnetic Field by Scattered Light.pdf(Scattered Light Contamination at WSO, 2009) 1025 The SWPC Solar Flux.pdf (The Strange SWPC graph of F10.7 flux, 2009) 1020 Solar Radio Flux.pdf (Possible Changes in SSN and F10.7 Relationship, 2009) 1010 Greenland-Magnetic-Observatory-Support.pdf (Letter of Support for Greenland Obs., 2009) 1000 Mean Field Workshop UCLA.pdf (Workshop for Calibration of Solar Magnetic Fields, 2009) 990 Xudong-AGU2008-Poster.pdf Xudong Sun, Polar magnetic fields observed during the last four solar minima (AGU 2008) 980 A Prediction for the 24th Solar Cycle.pdf (Brajsa et al., CEAB, 2009) 970 Modeling-a-Shallow-Solar-Dynamo.pdf (Ken Schatten, Solar Phys, 2009) 960 On solar cycle predictions and reconstructions.pdf (Brajsa et al., A&A, 2009) 950 Notes-on-HMF-at-Minima-and-Rmax.pdf (Trying to understand the correlation between Bmin and Rmax, 2008) 940 AGU-Fall-2008-SH51A-1593.pdf (Predicting Solar Cycle 24 [Using Solar Polar Fields], 2008) 930 AGU Fall 2008 SH24A-01.pdf (Towards a Consensus View of the Heliospheric Magnetic Field Strength Since 1900, 2008) 920 Napa Solar Cycle 24.pdf (Plenary Talk: Recalibration of the Sunspot Number and Consequences for Predictions of Future Activity and Reconstructions of Past Solar Behavior, 2008) 910 IAGA2008LS-writeup.pdf (Keynote Writeup: XIII IAGA Workshop) 170 Years Observatory Data, 2008 [Final version] 900 TSI-SORCE-Friday-Effect.pdf (TSI is different on Fridays?, 2008) 890 Seminar-SPRG-2008.pdf (Seminar at SPRG, 2008) Long-term Variations of Open Flux in the Heliosphere 880 IAGA2008LS.pdf (Keynote Talk: XIII IAGA Workshop) 170 Years Observatory Data, 2008 870 AGU Spring 2008 GP53A-07.pdf (Invited Talk: IHV and IDV Indices: Derivation and Stability, 2008) 860 AGU Spring 2008 SH44A-02.pdf (Invited Talk (Cliver): ~130 Years of Solar Wind Data: The Floor and More, 2008) [ppt] 850 AGU Spring 2008 SP23A-07.pdf (Sunspot Number Calibration by the Magnetic Needle Makes Sense, 2008) 840 New Solar Cycle Not Packing Much Punch.pdf (Livingston & Penn, 2008) 830 MgII-and-UV.xls (Comparisons MGII and UV, f10.7, 2008) 820 Seminar-UCLA-ESS288.pdf (Seminar at UCLA, 2008) Long-term Variations of Open Flux in the Solar Corona 810 ast10867.pdf (On the solar rotation and activity, Brajsa et al., Astr. Nachr., 2008) 800 Seminar-LMSAL.pdf (Seminar at LMSAL, 2008) Consensus Heliospheric Magnetic Field during the last ~120 years 790 Solar Polar Fields Normalized to Next Cycle.pdf (Updated prediction basis, 2008) 780 TSI From McCracken HMF.pdf (TSI Reconstruction 1428-2005, Santa Fe, SORCE 2008) 775 McCracken Comment.pdf (Comment on McCracken HMF 1428-2005, JGR (rejected) 2008) Report-Reply 770 TSI (Reconstructions).xls (TSI Reconstructions 1700-present, 2008) [as text, as PDF] 760 GC31B-0351-F2007.pdf ((No?)Century-scale Secular Variation in HMF, EUV, or TSI; AGU Fall 2007) 750 SH13A-1109-F2007.pdf (Geomagnetic Underpinning: Wolf's Sunspot Number; AGU Fall 2007) 740 De maculis in Sole observatis.pdf (Showing that Waldmeier introduced a jump in Rz, 2007) 730 TSI-LEIF.pdf (My version of TSI, 2007) 720 Comment on McCracken.pdf (HMF 1428-2005, Submitted to JGR 2007). 715 Long-term-IDV-IHV-PCP.pdf (New Indices IDV, IHCV, PCP, Adv-Space-Res. 2007). 710 CAWSES - IMF, EUV, TSI.pdf ( CAWSES Newsletter: vol 4, issue 2, 2007) 700 Interhourly variability index of geomagnetic activity.pdf (IHV-Index Definition, JGR 2007) (Data Archive, 450 MB) 690 Consensus IMF B.pdf (Svalgaard & Cliver vs. Rouillard et al. , 2007) 680 How we determine solar wind parameters for the past 150 years.pdf (Seminar at AFRL, Aug. 2007) 670 MWO MPSI - F107.pdf (Calibration of MWO Magnetic Data, 2007) 660 The-Open-Flux-Has-Been-Constant-Since-1840s-(SHINE2007).pdf (Invited talk SHINE 2007) 650 SOLIS-WSO Disk Analysis.pdf (Work in progress, 2007) 640 Analysis of K=0 and 1 for aa and NGK.pdf (Work in progress, 2007) 630 SSN-Validation-Reconstruction-IUGG-XXIV.ppt (Talk by Ed Cliver at Perugia, 2007 ( PDF-version )) 620 AGU Spring 2007 SH54B-02.pdf (Calibrating Sunspot Numbers Using the Magnetic Needle) 610 AGU Spring 2007 SH54B-03.pdf (Continuous Long-Term Record and Magnetic Storm Occurrence and Intensity, J. Love) 600 Solar Wind at Earth 1883-2007.pdf (Comparison S&C and R,L,&F) 590 Solar Mean Field 2003.pdf (Comparison WSO, MWO, SOLIS, CrAO observatories) 580 Cycle 24 A(t) Index.pdf (Tlatov's A(t) Index, through Apr., 2007) 570 When is Minimum.pdf (Sunspot Prediction Workshop for Cycle 24, Boulder 2007) 560 Geomagnetic Precursor Minimum Method.pdf (Sunspot Prediction Workshop for Cycle 24) 550 MgII Calibration.pdf (MgII wrong after 1st Jan. 2002, 2007) 540 A Floor in the Solar Wind Magnetic Field.pdf (ApJ Letters, 2007) 530 Nobeyama Polar Fields 1993-2006.pdf (updated regularly) 520 CAWSES-Sunspots.pdf (CAWSES Newsletter, vol 4, issue 1, 2007) 510 Scattered Light Influence on Magnetic Field at WSO.pdf (Work in Progress) 500 Percolation and the Solar Dynamo.pdf (Schatten's percolation model ApJS 2007) Hinode Movie 490 Grow-N-Crash Prediction Model.pdf (Panel, Boulder 2006) 480 Polar Fields and Cycle 24 (Observations).pdf (Panel, Boulder 2006) 470 AGU Fall 2006 SH21A-0313.pdf (A Floor in the Open Flux IMF Strength Constant in Time (Centuries) and Space (Latitude)?) 460 IHV(rot) years 1844-2010.xls (Geomagnetic Activity Bartels Rotations) 450 IDV yearly means 1872-2006.xls (IDV-index and derived IMF B) 440 Hathaway peaks.pdf (Geomagnetic precursor; Panel, Boulder, 2006) 430 Hemispheric analysis of PF and SSN.pdf (Boulder Workshop homework, 2006) 420 Long-term geomagnetic indices - solar wind in the past.pdf (Crippled Version of Sinaia Talk, AdvSpRes 2007) 410 Long-term geomagnetic indices - solar wind in the past.pdf (Full Version of Sinaia Talk 2006) 400 Physics-based Long-term Geomagnetic Indices.pdf (Invited talk, ISSC2 - Sinaia, Romania, 2006) 390 The-Solar-Wind-During-Grand-Minima.pdf (Invited talk [Ed], ISSC2 - Sinaia, Romania, 2006) 380 Polar Fields and Nobeyama 17 GHz Radio Flux.pdf (work in progress) 370 Cycle 24 Predictions SHINE 2006.pdf (Invited talk, SHINE 2006) 360 Solar Magnetographs SHINE 2006.pdf (Invited talk, SHINE 2006) 350 AGU-Spring-2006-SH51A-06.pdf (IMF B 1902-1912 from polar cap) 340 POES Power and IHV.pdf (Space Weather Week, 2006) 330 Polar Fields and Cycle 24.pdf (Space Weather Week, 2006) 320 Dikpati Referee Report.pdf (My Referee's Report on Dikpati et al., GRL 2006) 310 Reply to Lockwood IDV Comment.pdf (The Comment may or may not be here) 300 Fair Space Weather - Cycle 24.pdf (Schatten's prediction GRL 2005) 290 Cycle 24 Prediction Lund.pdf (Lund, 2005) 280 AGU-Fall-2005-SA12A-04.pdf (Re-derivation of Dst Index) 270 Cycle-24-Smallest-100-years.pdf (Prediction of Cycle 24 GRL 2005) 260 Comment-on-Dst-paper-by-K-and-M.pdf (unpublished manuscript 2005) 250 AGU Spring 2005 SH23C-05.pdf (Magnetograph "saturation") 240 1859 Storm - Extreme Space Weather.pdf (Solar Physics 2004) 230 Comment on Clilverd et al Reconstructing aa.pdf (unpublished manuscript 2004) 220 AGU-Fall-2004-SM41A-02.pdf (Semiannual Variation: protons or photons, 2004) 210 The IDV index - its derivation and use.pdf (JGR 2005, IMF B 1872-2004, Submitted version) 200 Semiannual Variation 1954 and 1996.pdf (AnGeo 2004) 190 Asymmetric-Rosenberg-Coleman-Effect.pdf (GRL 2004) 180 No-Increase-VxB-Since-1926.pdf (JGR 2004. From polar cap stations) 175 The-IDV-Index-Proxy-for-HMF-B.pdf (Geomagnetic Index (IDV) Magnitude of Interplanetary Magnetic Field, 2003) 170 AGU Fall 2003 SH21B-0108.pdf (New Geomagnetic Index (IDV) Measuring Magnitude of Interplanetary Magnetic Field, 2003) 160 IHV-Index (JGR - Version 1).pdf (IHV-Index Definition. Rejected by JGR 2003) 150 Determination-IMF-SW-EUV-1890-2003.pdf (Invited talk, ISCS, Slovakia 2003) 140 No Doubling of Open Flux.pdf (Rejected by Nature, 2003) 130 IHV - a new long-term geomagnetic index.pdf (COSPAR 2002; AdvSpRes 2004) 120 No Doubling.pdf (of Sun's open magnetic flux; unpublished manuscript 2002) 110 The semiannual variation of great geomagnetic storms.pdf (GRL 2002) 106 Rotation of the Sun.pdf (Astrophys. Journal, 1980) 104 WSO-Rotation-Scattered-Light.pdf (Solar Rotation Workshop, Catania, 1978) 100 Sun's Poloidal and Toroidal Magnetic Field.pdf (Solar Phys. 1979) 90 Using-Dynamo-Theory-to-Predict-Solar-Cycle-21.pdf (Schatten, Scherrer, Svalgaard, Wilcox, GRL 1978) 85 Reply to Comment on Aa Index.pdf (Mayaud and Svalgaard, JGR, 1978) 80 The-Strength-of-the-Sun's-Polar-Fields.pdf (Solar Phys. 1978) 75 Calculation-of-Spherical-Harmonics.pdf (Program description, 1978) Algol program) 70 A View of Solar Magnetic Fields, the Solar Corona, and the Solar Wind in Three Dimensions.pdf (1978 Review) 65 The Mean Magnetic Field of the Sun (pdf) (Solar Physics, 1977) 60 Geomagnetic Activity: Dependence on Solar Wind Parameters (pdf) (SUIPR 699; Coronal Hole Workshop, 1977) 55 Recalibrating Bartels.pdf (JGR, 1976) 50 Anomalous-Cosmic-Ray-Anisotropy-1954.pdf (Ester Antonucci, 1976) 42 HCS-Nature-1976.pdf (Nature 1976) 40 The Hale Solar Sector Boundary.pdf (Solar Phys. 1976) 35 On the Causes of Geomagnetic Activity.pdf (NASA, SUIPR 646, 1976) 30 Long-term-Evolution-of-Solar-Sector-Structure.pdf (Solar Phys. 1975) 20 Atlas of IMF Polarity 1947-1975.pdf (SUIPRs 629 and 648) 18 On the Use of Godhavn for IMF Polarity.pdf (JGR 1975) 17 Sun Magnetic Sector Structure.pdf (Solar Phys. 1975) 16 VAI-Sectors-1974.pdf (JAtmSci 1974) 15 Solar-Activity-and-Weather.pdf (Review 1974) 12 Spiral-Angle-Variation.pdf (Science 1974) 11 Green-Corona-and-Solar-Sector-Structure.pdf (Solar Phys. 1974) 10 Rigid-Rotation-Corona.pdf (Solar Phys. 1974) 9 Model Polar-Sector Solar Magnetic Fields.pdf (Solar Phys. 1974) 8 Coronal Structure at Sector Boundary.pdf (Solar Phys. 1974) 7 Geomagnetic-Response-to-Solar-Wind.pdf (NASA 1973) 6 SUIPR-521.pdf (Azimuthal IMF and Geomagnetic Response, 1973) 5 Green-Corona-Antonucci.pdf (Green Corona & Sectors, 1973) 4 JA078i013p02064.pdf (Polar Cap & IMF Sectors, JGR 1973) 3 VAI-Sector-Structure.pdf (Vorticity Area Index response to Sectors, Science 1973) 2 JA077i022p04027.pdf (IMF Magnetic Sectors, 1926-1971, JGR 1972) 1 DMI-R6.pdf (Sector structure, Geomagnetic field, 1968) 0 676011-Blue-Ice.pdf (Inge Lehmann Station, 1967)