Presentations
2020
2020 Fall AGU Meeting; On Line; 1-17 December, 2020
-
COFFIES: Developing a Reliable Physical Model of the Solar Activity Cycle;
J Todd Hoeksema, N. Brummell, R.I. Bush, R. Komm, A.G. Kosovichev, B. Mendez, P.H. Scherrer, L. Upton, A. Wray, D. Zevin;
Poster SH002-0007:
pdf
-
The Unique and Essential Benefits of a High-Latitude Vantage Point, J. Todd Hoeksema,
Invited SH014-02 :
Overview Slides
| pptx
| mp4 (15 min - 400MB)
-
Understanding Solar Cycle Magnetic Evolution with Properties of Solar Active Regions;
Yang Liu, Todd Hoeksema, Junwei Zhao, Marc L DeRosa, and Xudong Sun;
Poster SH002-0015
-
Fast Deep Learning-Based Stokes Vector Inversion with Confidence for SDO/HMI;
Richard Higgins, David Fouhey, Spiro K Antiochos, Graham Barnes, Tamas I Gombosi, Todd Hoeksema, K D Leka, Yang Liu,
and Peter W Schuck;
Poster NG004-0015
KIPAC Astrophysics Seminar; Stanford University, 3 December 2020
- COFFIES - Consequence Of Fields and Flows in the Interior and Exterior of the Sun, Todd Hoeksema:
pptx
Space Weather Operations and Research Infrastructure Workshop, Part 1, NASEM Online, 16-17 June, 2020
-
Solar and Heliospheric Measurements: Polar and Farside Observations,
J. Todd Hoeksema
PDF
| pptx
2020 EGU Meeting, Online 4-8 May 2020
-
The Solaris Solar Polar Mission,
D.M. Hassler + 19 incl. T. Hoeksema,
2020EGUGA..2217703H
2019
AGU 2019 Fall Meeting; San Francisco, CA; 9-13 December 2019
-
Ubiquitous imaging of solar photospheric fields using miniature, photonic magnetographs,
Hurlburt, N. E.; Chriqui, G.; Thurman, S.; Vasudevan, G.; Shing, L.; Chen, H.; Mobilia, J.; Yoo, B.; Hoeksema, J. T.
-
Inferring the Sun's Far-Side Magnetic Flux for Operations Using Time-Distance Helioseismic Imaging
Hess Webber, S. A.; Zhao, J.; Chen, R.; Hoeksema, J. T.; Liu, Y.; Bobra, M.; DeRosa, M. L.
Abilities United/Gatepath; Palo Alto, CA; 22 August, 2019
234th Meeting of the AAS/SPD Summer Meeting; St. Louis, MO; 9-13 June, 2019
-
A Makeover for HMI Magnetic Field Data, J.T. Hoeksema, Y. Lui, P.H. Scherrer and the HMI Science Team
Presentation 106.13: pdf,
pptx.
-
Reliably Inferring the Sun's Far-Side Magnetic Flux for Operations Using Time-Distance Helioseismic Imaging - Updates,
S.A. Hess Webber, Junwei Zhao, Ruizhu Chen, J.T. Hoeksema, Yang Liu, M. Bobra, M.L. DeRosa
Presentation 118.05: Abstract
2019 Space Weather Workshop, Boulder, CO; April, 2019
-
Reliably Inferring the Sun's Far-Side Magnetic Flux for Operations Using Time-Distance Helioseismic Imaging;
Hess Webber, Shea A.; Zhao, Junwei; Chen, Ruizhu; Hoeksema, J. Todd; Liu, Yang; Bobra, Monica; DeRosa, Marc
2018
AGU 2018 Fall Meeting; Washington, DC; 14-18 December, 2018
- Closing the Books on Cycle 24, J.T. Hoeksema
pdf,
pptx
SDO 2018: Catalyzing Solar Connections, Thagaste in Ghent Belgium, 29 Oct. - 2 Nov, 2018
- HMI Status Report, J.T. Hoeksema, P.H. Scherrer & the HMI Science Team,
pptx
(Movies)
- Soothing Massage of HMI Magnetic Field Data,
J.T. Hoeksema, Y. Liu, X. Sun, P.H. Scherrer, and the HMI Science Team; Poster:
pptx
SHINE 2018; Cocoa Beach, FL; 30 July - 3 August, 2018
- Using Sun's Far-Side Images Inferred by the Time-Distance Helioseismic Imaging to Improve Synoptic Maps of Magnetic
Field: Importance and Methodology, Yang Liu, Junwei Zhao, J.T. Hoeksema, Ruizhu Chen, Monica Bobra, Shea Hess Webber, Marc
DeRosa, Xudong Sun
Abstract
TESS 2018 (Triennial Earth-Sun Summit (and SPD), Leesburg, VA, 20-24 May 2018
- Thoughts on Preparing for the Astronomy Decadal and the Solar & Space Physics Mid-Term Assessment, J.T. Hoeksema,
Expanded Town Hall Presentation pptx
Deep Space Gateway Concept Science Workshop, Denver, CO, 27 Feb. - 1 Mar. 2018
- Using the Deep Space Gateway to Build the Next Generation Heliophysics Research Grid
A. Vourlidas, G.C. Ho, I.J. Cohen, C.M. Korendyke, S. Tun-Beltran, S.P. Plunkett, J. Newmark, O.C. St Cyr, J.T. Hoeksema
Science Day at the Kodaikanal Observatory, Kodaikanal, India, 29 February, 2018
- Looking at the Sun - Our Star, J.T. Hoeksema
Colloquium at the Indian Institute of Astrophysics, Bangalore, India, 27 February, 2018
- Observing the Sun -- Over Long Periods -- 'Mostly' from Space, J.T. Hoeksema
pptx [Large]
IAU Symposium 340: Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles, Jaipur, India, 19-24 February, 2018
- Long-term Measurement of the Solar Magnetic Field, J.T. Hoeksema
pptx
2017
AGU 2017 Fall Meeting; New Orleans, LA; 13-17 December 2017
- Measuring the Large-Scale Solar Magnetic Field,
J.T. Hoeksema, P.H. Scherrer, E. Peterson, L. Svalgaard,
SH 51C - 2497:
pdf
pptx
- Predicting the Magnetic Properties of ICMEs: A Pragmatic View,
P. Riley, J. Linker, J.M. Ben-Nun, T. Torok, R.K. Ulrich, C.T. Russell, H. Lai, C.A. de Koning, V.J. Pizzo, Y. Liu, J.T. Hoeksema,
SH 31D - 08
L5 Consortium Meeting; Gottingen, Germany; October 2017
Calvin College Science Division Seminar; Grand Rapids, MI; 29 September 2017
- Observing the Sun, J.T. Hoeksema
[movies]
http://sun.stanford.edu/~todd/presentations/2017_SPD_QMaps/summary.mp4
48th Meeting of the AAS Solar Physics Division; Portland, OR; 24 August 2017
- Q-Maps of the Solar Corona for 2 Solar Cycles: 1996-2017,
J.T. Hoeksema, Y. Liu, X. Sun, V. Titov, Z. Mikic
pptx
[movies/]
- Investigating the Magnetic Imprints of Major Solar Eruptions with SDO/HMI High-Cadence Vector Magnetograms,
X. Sun, J.T. Hoeksema, Y. Liu, M.D. Kazachenko, R. Chen
2016
AGU 2016 Fall Meeting; San Francisco, CA; 12-16 December 2016
- Large-Scale Solar Magnetic Fields - How is Solar Cycle 24 Different?
J.T. Hoeksema: SH31B-2459 -
Poster pptx
- Q-Maps: A New Synoptic Data Product for Investigating Dynamic Coronal Connectivity,
X. Sun. J.T. Hoeksema, Y. Liu, Z. Mikic, V. Titov: SH13C-2312.
- Achieving Consistent Vector Magnetic Field Measurements from SDO/HMI,
P.W. Schuck, P.H. Scherrer, S. Antiochos, J.T. Hoeksema: SH31B-2575
2016 SDO: Unraveling the Sun's Complexity; 17-21 October 2016
- Vector Magnetic Field Synoptic Maps from HMI,
J.T. Hoeksema, Y. Liu, X. Sun, K. Hayashi
Poster_pptx
- On-orbit Performance and Calibration of the HMI Instrument
J.T. Hoeksema, R. Bush, C. Baldner, J. Schou, P. Scherrer, and the HMI Calibration Team
Poster_pptx
- Achieving Consistent Vector Magnetic Field Measurements from SDO/HMI,
P.W. Schuck, P.H. Scherrer, S. Antiochos, J.T. Hoeksema
- The Asymmetric Polar Field Reversal of Solar Cycle 24,
X. Sun, J.T. Hoeksema, Y. Liu, J. Zhao, M. Bobra
47th Meeting of the AAS Solar Physics Division; Boulder, CO; 30 May - 3 June 2016
- Q-Maps: A New Synoptic Data Product for Investigating Dynamic Coronal Connectivity,
X. Sun. J.T. Hoeksema, Y. Liu, Z. Mikic, V. Titov
Poster_pdf
- Unexpectedly Strong Lorentz-Force Impulse Observed During a Solar Eruption,
X. Sun, G. Fisher, T. Torok, J.T. Hoeksema, Y. Li, and the CGEM Team
- The Processing of Observables Made by the HMI Instrument on SDO,
J.T. Hoeksema, J. Schou, S. Couvidat, R.S. Bogart, R. Bush, T.L. Duvall, Y. Liu, A. Norton, P.H. Scherrer
Poster pdf
Poster pptx
- On HMI's Mod-L Sequence: Test and Evaluatoin,
Y. Liu, C. Baldner, R.S. Bogart, R. Bush, S. Couvidat, T.L. Duvall, J.T. Hoeksema, A. Norton, P.H. Scherrer, J.
Schou
- HMI Calibration Issues - presented at the Splinter Meeting on HMI Calibration Issues,
J.T. Hoeksema and the HMI Team
2015
AGU 2015 Fall Meeting; San Francisco, CA; 14-18 December 2015
- SDO/HMI Vector Magnetic Field Observations of the Solar Polar Region,
X. Sun, J.T. Hoeksema, Y. Liu, A.A. Norton, A. Sainz Dalda, K. Hayashi:
SH23A-2429
- Predicting the Interplanetary Magnetic Field using Approaches Based on Data Mining and Physical Models,
P. Riley, C.T. Russell, C.A. de Koning, D.A. Biesecker, J. Linker, M.J. Owens, N. Lugaz, P. Martens, R. Angryk,
A. Reinard, R.K. Ulrich, T.S. Horbury, V.J. Pizzo, Y. Lu, J.T. Hoeksema:
SH14A-06
IAU XXIX General Assembly; Honolulu, HI; 3-14 August 2015
- HMI Observations of Solar Flares in Solar Cycle 24,
J.T. Hoeksema, M. Bobra, S. Couvidat, and X. Sun
ppt
pdf
Forecasts and Warnings of Extreme Storms at the Sun; Lund, Sweden; 1 June 2015
TESS - Triennial Earth-Sun Summit; Indianapolis, IN; 26-30 April 2015
- Causes of Major Change in the Heliospheric Field, #110.02, J.T. Hoeksema
WSO 39 Years Plot
Captions and
- Why is the Great Solar Active Region 12192 CME-Poor? #408.02,
X. Sun, M. Bobra, J.T. Hoeksema, Y. Liu, Y. Li, C. Chen, S. Couvidat, A. Norton, G.H. Fisher
2014
AGU; San Francisco, CA; 15-19 December, 2014
-
Evolving Global Heliiospheric Structure in Janaury 2014,
J.T. Hoeksema and Yang Liu,
SH53A-4201, 2014
-
Lorentz Force Imprint on the Solar Photosphere from the Inclined Eruptions on 2014 January 07,
X. Sun and the CGEM Team,
SH53A-4196, 2014.
-
Systematic Errors and Uncertainties in the HMI Magnetic Data,
A. Norton and the HMI Magnetic Field Team,
SH53A-4198, 2014.
2014 LWS/Hinode/IRIS Workshop, Evolving Solar Activity and Its Influence on Space and Earth,
Portland, OR, 2-6 November, 2014
-
A Curiously Ineffective Solar Event,
J.T. Hoeksema
-
Using HSO to Improve Data-Driven Modeling in Heliophysics,
J.T. Hoeksema, Panel Moderator
Open Show SF #64 - Seeing the Unseen,
Oakland, CA, 30 October 2014
AAS/SPD, Boston, MA, 1-5 June 2014
-
Connecting the Dots - Magnetic Field in the Inner Heliosphere,
J.T. Hoeksema, Y. Liu, X. Sun, A. A. Norton,
AAS 224, #343.64, 2014, 2014AAS...22432364H
-
Tracked Active Region Patches for MDI and HMI,
Michael Turman, J.T. Hoeksema, M. Bobra,
AAS 224, #123.52, 2014AAS...22412352T
-
Polarity Reversal of the Solar Photospheric Magnetic Field During Activity Cycle 24,
Xudong Sun, J.T. Hoeksema, Y. Liu, J. Zhao,
AAS 224, #103.06, 2014AAS...22410306S
2013
AGU Fall Meeting, San Francsico, CA, 9-13 December, 2013
-
Progress and Problems in Data-Drven Models of the Solar Coronal Magnetic Field, Invited,
M.L. DeRosa, G.H. Fisher, J.T. Hoeksema,
SH14A-05
-
TARPs: Tracked Active Region Patches from SoHO/MDI,
M. Turmon, J.T. Hoeksema, M. Bobra,
SH23A-2087
-
North-South Asymmetries: the Solar Dynamo and Hemispheric Coupling,
A.A. Norton, J.T. Hoeksema, K. Hayashi, Y. Liu, X. Sun, B.H. McClintock, E. Jones, W.M. Arden,
SH33E-07
- The Polar Field Reversal of Solar Cycle 24 Observed by SDO/HMI Details,
X. Sun, J.T. Hoeksema, Y. Liu, K. Hayashi, A. Sainz Dalda, A.A. Norton,
SH41A-2151
-
Space-weather Parameters for 1,000 Active Regions Observed by SDO/HMI,
M. Bobra, Y. Liu, J.T. Hoeksema, X. Sun,
SH53A-2154
44th SPD Meeting, Bozeman, MT, 8-12 July, 2013
-
A Data-Driven Time-Dependent 3D MHD Simulation of Solar Active Regions with HMI Vector Magnetic Field Data,
Keiji Hayashi, J.T. Hoeksema, Y. Liu, X. Sun, M. Bobra, A.A. Norton,
SPD 44, #302.04, 2013SPD....4430204H
-
Hot Spine Loops and the Nature of a Late-Phase Solar Flare,
Xudong Sun, J.T. Hoeksema, Y. Liu, G. Aulanier, Y. Su, I. Hannah, R. Hock,
SPD 44, #201.03, 2013SPD....4420103S
-
The Coronal Global Evolutionary Model (CGEM),
George H. Fisher, M.L. DeRosa, J.T. Hoeksema,
SPD 44, #101.02, 2013SPD....4410102F
-
HMI Magnetic Field Products,
J.T. Hoeksema and the HMI Magnetic Field Team,
SPD 44, #100.108, 2013SPD....44..108H
2013 Meeting of the Americas, Cancun, Mexico, 14-17 May, 2013
-
Inferring Large-Scale Solar Wind and Coronal Field Structure of Cycle 23 from MDI Magnetic Observation,
X. Sun, J.T. Hoeksema, X.P. Zhao, Y. Liu, K. Hayashi,
SH31B-01
2012
AGU Fall Meeting, San Francisco, 3-7 December, 2012
- HARPs: Tracked Active Region Patch Data Product from SDO/HMI,
Michael Turmon, J.T. Hoeksema, X. Sun, M. Bobra,
SH13A-2246. pdf
- The Asymmetric Polar Field Reversal - Long-Term Observations from
WSO,
J.T. Hoeksema,
SH13C-2278. pdf
- Strategies and Innovative Approaches for the Future of Space-Weather
Forecasting,
J.T. Hoeksema,
SM22D-07.
- Motion of Magnetic Elements at the Solar Equator Observed by
SDO/HMI,
Keiji Hayashi, A. Norton, Y. Liu, X. Sun, J.T. Hoeksema,
SH41D-2129.
pdf
- The Dynamic Polar Magnetic Field Before Its Polarity Reversal,
Xudong Sun, J.T. Hoeksema, Y. Liu, A. Sainz Dalda, A. Norton, K. Hayashi,
SH41D-2130.
pdf
- SHARPs - A Near Real Time Space Weather Data Product from HMI,
Monica Bobra, M. Turmon, C. Baldner, X. Sun, J.T. Hoeksema,
SH43B-2171. pdf
- Magnetic Helicity in Emerging Active Regions: A Statistical Study,
Yang Liu, K. Hayashi, J.T. Hoeksema, A. Norton, P.W. Schuck, X. Sun,
SH53B-03.
- Insights into Using SDO Data for Active Region Specification and
Real-Time Event Monitoring,
Rachel A. Hock, K.S. Balasubramaniam, A. Amezcua, R.S. Bogart, F.G.
Eparvier, J.T. Hoeksema, A.R. Jones, D. Woodraska, and T.N. Woods,
SH13A-2279.
XXVIII IAU, Beijing, China, 20-24 August, 2012
- Evolution of the Solar Magnetic Field,
J. Todd Hoeksema, in JD 3:
3-D Views of the Cycling Sun in Stellar Context,
[ppt directory]
AAS/SPD, Anchorage, AK, 11-14 June, 2012
- Polar Reversal, Solar Maximum, and the Large-Scale Heliospheric Field in Solar Cycle 24,
J. Todd Hoeksema, X. Sun, and K. Hayashi, AAS 206.07.
[PDF]
[ppt]
- A Protrait of the Magnetic Sun: Observation and Modeling at Global
and Active Region Scales,
X. Sun, J.T. Hoeksema, Y. Liu, X. Zhao, K. Hayashi, AAS 322.06
SDO-4/Hinode/IRIS Meeting, Monterey, CA, 12-16 March, 2012
- The Helioseismic and Magnetic Imager Magnetic Field Data Products,
J.T. Hoeksema and the HMI Magnetic Field Team.
[PDF]
[ppt]
2011
AGU Fall Meeting, San Francisco, 5-9 December, 2011
-
HMI Vector Magnetid Field Products: The Long-Awaited Release Has Come!
Now What?,
Rebecca Centeno; Graham Barnes; Juan Borrero; Sebastien P. Couvidat;
Keiji Hayashi; J. T. Hoeksema; K D. Leka; Yang Liu; Jesper Schou; Peter
W. Schuck; Xudong Sun; Steven Tomczyk, SH31A-1965.
-
Spectropolarimetric Comparison Between SDO/HMI and
Hinode-SOT/SP Through THEMIS/MTR,
Alberto Sainz Dalda; Arturo Lopez Ariste; Bernard Gelly; Theodore D.
Tarbell; Rebecca Centeno; Marc L. DeRosa; J T. Hoeksema
SH31A-1986.
-
Evolution of Magnetic Field in the Flaring Active Region AR
11158 Based on SDO/HMI Observations,
Xudong Sun; J T. Hoeksema; Yang Liu; Thomas Wiegelmann; Keiji Hayashi,
SH31A-1993.
-
The Rising Phase of Solar Cycle 24: General Solar Wind, Large-Scale Solar Wind Structures, and Sector Asymmetry,
L.K. Jian, C.T. Russell, J.G. Luhmann, P. Riley, J.T. Hoeksema, D. Odstrcil, G. Petrie, SH33A-2036
[PDF]
-
Early Reversal of the Sun's Polar Field - Is Solar Cycle 24
Already Peaking?, J T. Hoeksema, SH33A-2044.
[PDF]
[ppt]
-
Heliospheric Space Weather at the Start of Cycle 24,
J.G. Luhmann, Y. Li, Y. Liu, L. Jian, C.T. Russell, E. Kilpua, G.J. Petria, J.T. Hoeksema
SH31D-04.
-
Nonlinear Force-Free Extrapolation of Vector Magnetograms into the Corona,
Julia K. Thalmann; Thomas Wiegelmann; Xudong Sun; J. T. Hoeksema; Yang Liu; Tilaye Tadesse,
SH33C-05.
-
SHARPs - A New Space Weather Data Product from SDO/HMI,
Monica Bobra; J T. Hoeksema; Xudong Sun; Michael Turmon
SH51B-2006.
-
HMI & SDO: All of the Sun, All of the Time, J.T. Hoeksema
[ppt]
-
SHARP: Space-Weather HMI Active Region Patches - M.G. Bobra; J.T. Hoeksema, X. Sun, and the HMI Magnetic Field Team
-
The synoptic maps of Br from HMI observations: better input for the global coronal models. - Keiji Hayashi, Yang Liu, Xudong Sun, J. Todd Hoeksema, Rebecca Centeno Elliott, Graham Barnes and K.D. Leka
-
HMI Magnetic Field Observations - J.T. Hoeksema and the HMI Magnetic Field Team
-
Sunspot Groups Simultaneously Observed with HMI and MDI - A.A. Norton,
J. Schou, Y. Liu, J.T. Hoeksema
-
Tracking Vector Magnetograms from the Solar Dynamics Observatory, - P.W.
Schuck, X. Sun, K. Muglach, J.T. Hoeksema, and the HMI Vector Field Team
The Sun 360
- STEREO-4/SDO-2/SOHO-25, Kiel, Germany, 25-29 July, 2011
-
Global Modeling of the Coronal and Heliospheric Magnetic Field with
Solar Observations, J.T. Hoeksema
[ppt]
-
Magnetic Field Topology and Energetics in the Flaring Active Region 11158, X. Sun, J.T. Hoeksema, Y. Liu, T.
Wiegelmann, K. Hayashi
SPD Meeting 2011,
Las Cruces, NM, 12-16 June, 2011
-
Evolution of Magnetic Field in the Flaring Active Region 11158 Observed by SDO/HMI, X. Sun, J.T. Hoeksema, Y. Liu,
T. Wiegelmann, K. Hayashi
[abstract]
-
HMI Measurements of the Solar Magnetic Field, J.T. Hoeksema & the HMI Magnetic Field Team
[abstract]
-
MHD Simulations of the Solar Corona in Early August 2010 Using the HMI Magnetic Field Data,
K. Hayashi, X. Zhao, Y. Liu, X. Sun, J.T. Hoeksema, and the HMI Team
[abstract]
-
Studying Solar Active Regions with HMI Data,
Yang Liu, J.T. Hoeksema, K. Hayashi, X. Sun, P. Schuck, K Muglach
[abstract]
First LWS/SDO Workshop,
The Many Spectra of Solar Activity, Squaw Valley, Olympic Village, CA; 1-5 May, 2011
-
The Helioseismic and Magnetic Image Magnetic Field Data Products,
J. Todd Hoeksema and the HMI Magnetic Field Team,
[ppt poster]
-
Tracked Patches of Solar Activity for HMI,
Michael Turmon, Xudong Sun, and J. Todd Hoeksema
[ppt poster]
-
Studying Solar Active Regions with HMI Data,
Yang Liu, J.T. Hoeksema, K. Hayashi, X. Sun, P. Schuck, and K. Muglach
-
Magnetogram Time Series Observed with HMI,
A.A. Norton, J. Schou, Y. Liu and J.T. Hoeksema
-
HMI Vector Field Results - and Why a Year Down the Line We Have Not Made
the Data Available for Science Analysis,
R. Centeno, S. Tomczyk, G. Barnes, J. Borrero, S. Couvidat,
K. Hayashi, J.T. Hoeksema, K.D. Leka, Y. Liu, J. Schou,
P. Schuck and X. Sun
-
Evolution of Magnetic Field in the Flare Active Region 11158 Observed by
SDO/HMI,
Xudong Sun, J.T. Hoeksema, Y. Liu, T. Wiegelmann, and K. Hayashi
-
MHD Simulation of the Solar Corona in Early August Using the HMI
Magnetic Field Data,
Keiji Hayashi, X.P. Zhao, Y. Liu, J.T. Hoeksema, and X. Sun
-
Tracking Vector Magnetograms from the Solar Dynamics Observatory,
P.W. Schuck, X. Sun, K. Muglach, and J.T. Hoeksema
-
The Global Character of the 2010.08.01 Earth-Directed Coronal Mass
Ejection and the Cause of the Associated Great Sympathetic Solar Storm,
Xuepu Zhao and J.T. Hoeksema
-
Calculating Flaring Potential in Solar Active Regions Using SDO/HMI
Vector Magnetic Field Data,
Monica G. Bobra, M.K. Georgoulis and J.T. Hoeksema
2010
AGU 2010, San Francisco, CA; 13-17 December, 2010
-
First Magnetic Field Results from the Helioseismic and Magnetic Imager
(HMI) on the Solar Dynamics Observatory (SDO),
J. Todd Hoeksema and The HMI Magnetic Team; SH13A-03
[ppt]
-
Synchronic Maps and Frames,
J. Todd Hoeksema, Yang Liu, Xudong Sun, and Xuepu Zhao; SH41D-02
[ppt]
- The Evolution of Photospheric Flows in Active Regions,
K. Muglach, P.W. Schuck, J.T. Hoeksema, X. Sun and Y. Liu; SH11A-1605
-
First Results of Field Extrapolation Based on HMI Vector Magnetic Data,
X. Sun, J.T. Hoeksema, T. Wiegelmann, K. Hayashi, and Y. Liu;
SH11A-1607
[pdf]
-
Calculating Non-Potentiality in Solar Active Regions Using SDO/HMI
Vector Magnetic Field Data,
M. Bobra, J.T. Hoeksema;
SH11A-1608
[ppt]
[pdf]
-
Modeling the Time Variation of Coronal Holes Observed by SDO/AIA, Stereo
A and B Using HMI Synchronic Frames, X. Zhao, J.T. Hoeksema, and Y. Liu;
SH11A-1616
-
Tracking Vector Magneticgrams from the Solar Dynamics Observatory,
P.W. Schuck, X. Sun, K. Muglach, and J.T. Hoeksema; SH14A-07
[abstract]
[pdf]
Meeting of the the Americas, Foz do IguaƧu, Brazil, 8-12 August,2010
-
Comparison of HMI Carrington Synoptic Maps of Line-of-sight Photospheric
Magnetic Fields Among Different Spatial Resolutions,
Xuepu Zhao, J. Todd Hoeksema, and Y. Liu,
[pdf]
GONG 2010 / SOHO 24, Aix-en-Provence, Franc3e, 27 June - 1 July, 2010
- Initial Magnetic Field Observations from HMI,
J. Todd Hoeksema and the HMI Magnetic Field Team
[ppt
- movies here]
Solar Physics Division / AAS Meeting, Miami, FL, 24-27 May, 2010
- Early Magnetic Field Observations from HMI,
J.Todd Hoeksema and the HMI Magnetic Field Team: Y. Liu, K. Hayashi, X. Sun,
J. Schou, S. Couvidat, X. Zhao, R. Bogart, P. Desai, S. Tomczyk, J.
Borrero, R. Centeno Elliot, K.D. Leka, G. Barnes, A. Crouch, M. Turmon,
P. Schuck, T. Wiegelmann and the rest of the HMI Team [402.06]
[ppt]
[pdf]
- A Spherical Harmonic Analysis of the Evolution of the Photospheric
Magnetic Field, and Consequences for the Solar Dynamo,
Marc L. DeRosa, J.T. Hoeksema, A.S. Brun [317.01]
-
An Attempt in Incorporating Local and Global Coronal Magnetic Field
Modeling, Xudong Sun, J.T. Hoeksema, X. Zhao, T. Wiegelmann [402.15]
-
Understanding Solar Eruptions with SDO/HMI Measuring Photospheric Flows,
Testing Models, and Steps Towards Forecasting Solar Eruptions, Peter, W.
Schuck, M. Linton, K. Muglach, T. Hoeksema [402.14]
-
First Data from the Helioseismic and Magnetic Imager,
Jesper Schou and the HMI Team [308.01]
-
Helioseismic and Magnetic Imager Investigation on SDO - Current Status,
Philip H. Scherrer and the HMI Team [402.04]
-
A Study on Evolution of the Solar Active Regions with SDO Data, Yang
Liu and the HMI Team [402.07]
2009
AGU Fall Meeting, San Francisco, CA; 13-18 December, 2009
-
Comparing the Large-Scale Magnetic Field During the Last Three Solar Cycles (Invited),
J.T. Hoeksema,
SH13C-06
[ppt]
-
Mapping the Sun's Atmosphere into Interplanetary Space: How Recent
Changes in the Solar Dynamo are Affecting the Solar Wind Around Us,
J.G. Luhmann, C.O., Lee, and J.T. Hoeksema;
U34A-04
-
The Magnetic Field at the Heliosphereic Base During Solar Minimum,
X. Zhao and J.T. Hoeksema,
SH13B-1534
-
A New Source Surface Radius in Potential Field Modeling During the
Current Weak Solar Minimum?, X. Sun and J.T. Hoeksema,
SH11A--1487
[pdf]
Third Hinode Science Meeting, Tokyo, Japan; 1-4 December, 2009
- Hinode/SOT Spectropolarimetry and Vector Magnetic Field Comparisons with a Selection of International Instruments,
K.D. Leka and the VMCoG - 21 co-authors including J.T. Hoeksema
[pdf
Vector Magnetogram Comparison Group Meeting, Tucson, AZ; 27-29 October, 2009
- HMI Magnetic Products & Pipeline, J.T. Hoeksema
[ppt]
- The Origin of the Solar Cycle & Helioseismology,
J. Todd Hoeksema
[ppt] (See directory for movies)
- ATST and Other Ground-Based Solar Observing,
J. Todd Hoeksema
[ppt] 47 MB
SOHO 23: Understanding a Peculiar Solar Minimum, Northwest Harbor, Maine; 21-25 September, 2009
- On the Solar Wind Source Surface Radius for Cycle 23,
J.G. Luhmann, C.O. Lee, Yan Li, C.N. Arge, J.T. Hoeksema, P. Riley, C.T. Russell, A. Thernisien and R.A. Howard
[large pdf]
- Three Cycles of the Solar Toroidal Magnetic Field and This Peculiar Minimum,
Leyan Lo, J.T. Hoeksema & P.H. Scherrer.
[pdf]
- Key Questions for Understanding This Unusual Solar Minimum,
J.T. Hoeksema, A. Gabriel, J. Luhmann, W. Matthaeus, N. Sheeley
[ppt]
HMI Team Meeting, Stanford, CA; 8-11 September, 2009
- HMI Magnetic Products & Pipeline, J.T. Hoeksema
[ppt]
IAU XXVII General Assembly, Symposium 284, Rio De Janieiro, 3-14 August, 2009
- Evolution of the Large-Scale Magnetic Field Over Three Solar Cycles,
J. Todd Hoeksema
[ppt]
- The Helioseismic and Magnetic Imager on the Solar Dynamics Observatory,
J. Todd Hoeksema for the HMI Team - Stanford University, LMSAL, HAO, ++
[ppt]
Time-Distance Helioseismology Workshop, Stanford, CA; 20-22 July, 2009
- HMI Magnetic Field Observations and Data Products,
J.T. Hoeksema
[ppt]
SPD - Solar Physics Division of the American Astronomical Society, Boulder, CO; 14-18 June, 2009
- Spatial Structure of Polar Magnetic Field During the Last Solar cycle,
Xudong Sun and T. Hoeksema
[pdf]
- Testing Automated Solar Flare and Coronal Mass Ejection Forecasting with 13 Years of MDI Synoptic Magnetograms,
James Mason and J.T. Hoeksema,
[pdf ppt]
- The HMI Magnetic Field Pipeline,
J.T. Hoeksema, UY. Liu, J Schou, P. Scherrer, and the HMI Science Team
[ppt]
2008
AGU - American Geophysical Union Fall Meeting, San Francisco, CA; 14-19 December, 2008
- Investigating Automated Coronal Mass Ejection Prediction Using a Solar Cycle of MDI Magnetograms,
J.P. Mason, J.T. Hoeksema & D. Falconer, SA51A-1533
(ppt).
- Polar Magnetic Fields Observed During the Last Four Solar Minima,
X. Sun, Y. Liu, & J.T. Hoeksema, SH51A-1589.pdf.
37th COSPAR Assembly, Montreal, Quebec, Canada; 13-20 July 2008
-
Absence of a Long Lasting Southward Displacement of the HCS Near the
Minimum Preceding Solar Cycle 24, X.P. Zhao, J.T. Hoeksema & P.H.
Scherrer [ poster.ppt ]
AGU/SPD - Joint Assembly, Ft. Lauderdale, FL; 26-30 May, 2008
- HMI Magnetic Field Data Products, J.T. Hoeksema & The HMI
Magnetic Team [ poster.ppt ]
- Modeling Solar Wind Using the Newly Calibrated MDI Magnetic Field:: 1996-2008, Xudong Sun & J.T.
Hoeksema [ poster.pdf ]
- The Sun as the Source of Heliospheric "Space Weather": A CISM Integrated Model Perspective and
STEREO Inspiration (Invited), J.G. Lyhmann, Y. Li, B. Lynch, C.O. Lee, E. Huttunen, Y. Liu, V. Toy, D.
Odstrcil, P. Riley, J. Linker, Z. Mikic, C. Arge, G. Petrie, X. Zhao, Y.Liu, T. Hoeksema, M. Owens, A
Galvin, K. Simunac, R. Howard, A. Vourlidas, L.K. Jian, C.T. Russel
- A Determination of the Value and Variability of the Sun's Open Magnetic Flux Using a Global MHD
Model, P. Riley, Z. Mikic, J. Linker, J.W. Harvey, T. Hoeksema, Y. Liu, L. Bertello
SDO Science Teams Meeting, Napa, CA; March 25-28, 2008
- HMI Magnetic Field Data Products, J.T. Hoeksema for the HMI Magnetic Team [ See Above ]
-
The HMI Investigation - P.H. Scherrer, J.T. Hoeksema & the HMI Science Team
2007
JSOC Review, Stanford, CA; November, 2007
SDO Teams Meeting, Boulder, CO; 14 September, 2007
LWS Science Meeting: From the Sun towards the Earth, Boulder, CO; 10-13 September, 2007
SHINE Workshop, Whistler, BC, Canada; 29 July - 3 August, 2007
CISM Solar Workshop - Whistler, BC, Canada; 28 July, 2007
Student Presentation, Stanford, CA; June, 2007
CISM Site Visit, Boston, MA; 4-8 June, 2007
SPD - Solar Physics Division of the AAS in Honolulu, HI; 27-31 May, 2007
- 24.05: MDI Synoptic Charts of Magnetic Field: Interpolation of
Polar Fields, Y. Liu, J.T. Hoeksema, X.P. Zhao, R.M. Larson
- 24.15: The Helioseismic &
Magnetic Imager on the Solar Dynamics Observatory, J.T. Hoeksema for
the HMI Project Team
- 30.04: A Comparative Study of
Different Approaches and Potential Improvement to Modeling the Solar
Wind, X. Sun & J.T. Hoeksema
- 92.16: Constructing the Best
High-resolution Synoptic Maps from MDI, J.T. Hoeksema, Y. Liu, X.P.
Zhao, A. Amezcua
- 94.24: Statistical Relationships Between Active Region
Photospheric Magnetic Properties and Flare Events, N. Bokenkamp &
J.T. Hoeksema
AGU Joint Assembly, Acapulco, Mexico; May 23-27, 2007
2006
AGU - American Geophysical Union Fall Meeting, San Francisco, CA; 11-15
Dec. 2006
- SH21A-0314: The Solar Polar Field During Solar Cycles 21-23,
J.T. Hoeksema, Y. Liu, & X.P. Zhao
SPD - Solar Physics Division, Durham, NH; 26-30 June
COSPAR, Beijing; 16-22 July
ILWS - International Living With a Star, Beijing; 22-23 July
Beijing Astronomical Observatory; 25 July
2005
HMI Team Meeting, Stanford, CA; January 2005
- HMI - Synoptic Data Sets
.ppt