SH031
The Future of the International Sunspot Number
Session ID#: 250850
Session Description:
The international sunspot number (SN) is the recalibration of the Zürich sunspot number (RZ) that is measured and served at the WDC SILSO. This modernization provides a consistent extension of the most-analyzed observational solar-variability time series available. Following the first recalibration, the current reconstruction effort includes a re-examination of the sources underlying SN and ways to join the observational records. The SN working group is accumulating original drawings, particularly during the various temporal gaps in coverage before 1825. The goals of this session are to provide an update on recent improvements in the SN record and seek community feedback. This includes a wide range of subjects such as: Increase the cadence of the released data? Can AI/ML algorithms ingest the hand-drawn images to fill in gaps? Works describing how SN can be improved to match the user needs or ways to implement SN in modern algorithms are solicited.
Co-Sponsor(s):
Index Terms:
1980 Spatial analysis and representation [INFORMATICS]
7524 Magnetic fields [SOLAR PHYSICS, ASTROPHYSICS, AND ASTRONOMY]
7536 Solar activity cycle [SOLAR PHYSICS, ASTROPHYSICS, AND ASTRONOMY]
7538 Solar irradiance [SOLAR PHYSICS, ASTROPHYSICS, AND ASTRONOMY]
Primary Convener: William Dean Pesnell, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Conveners: Laure Lefevre, Royal Observatory of Belgium, Brussels, Belgium, Greg Kopp, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, United States and Theodosios Chatzistergos, INAF Osservatorio Astronomico di Roma, Rome, Italy
Historical Reconstruction of Solar Surface Magnetism from Cycle 1 – 24 Using AFT and International Sunspot Number (Invited) (1857387)
Dr. Bibhuti Kumar Jha, Southwest Research Institute Boulder, Boulder, CO, United States, Lisa Upton, Southwest Research Institute Boulder, Boulder, United States, Greg Kopp, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, United States and Odele Coddington, LASP, University of Colorado, Boulder, United States
Investigating Latitudinal Coupling in Solar Cycle Dynamics Using Transfer Entropy (1889469)
Jay Johnson, Andrews University, Berrien Springs, United States, Simon Wing, The Johns Hopkins University Applied Physics Laboratory, Laurel, United States and Thierry Dudok de Wit, LPC2E, CNRS and University of Orléans, Orléans, France
Ongoing and Future Efforts to Process Sunspot Drawings and Other Historical Data to Create Data Products Usable in the Modern Era (Invited) (1902543)
Alexander Pevtsov, National Solar Observatory, Tucson, AZ, United States, Luca Bertello, National Solar Observatory, Boulder, United States and Hisashi Hayakawa, Nagoya University, Institute for Space-Earth Environmental Research, Nagoya, Japan
Modelling Past Space Weather Events Based on Estimated Historical Solar Proxy Indices (1914488)
Poshan Belbase1, Denny M. Oliveira2, Theodosios Chatzistergos3, Gangkai Poh4, Eftyhia Zesta2 and Hisashi Hayakawa5, (1)Catholic University of America, Washington, DC, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)INAF Osservatorio Astronomico di Roma, Rome, Italy, (4)Catholic University of America, Dept. of Physics, Maryland, United States, (5)Nagoya University, Institute for Space-Earth Environmental Research, Nagoya, Japan
A Novel Method for Cross-Calibrating Polar Field Measurements Between WSO and HMI (1920965)
Stephanie Puckett, University of Colorado Boulder, Fort Collins, CO, UNITED STATES, Dr. Bibhuti Kumar Jha, Southwest Research Institute Boulder, Boulder, CO, United States and Lisa Upton, SSRC, Alexandria, United States
The Latest on the Reconstruction of the Sunspot Number (1959627)
William Dean Pesnell, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Laure Lefevre, Royal Observatory of Belgium, Brussels, Belgium, Greg Kopp, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, United States, Theodosios Chatzistergos, INAF Osservatorio Astronomico di Roma, Rome, Italy and The International Sunspot Number Working Group Team
Solar Cycle Prediction from an Operational Perspective (1969152)
Mark S Miesch, CIRES/University of Colorado, Boulder, United States, Mary Kosak, Ai Solutions / NASA Kennedy Space Center LSP, Cape Canaveral, FL, United States and Fabio Chiappina, Ai Solutions, Cape Canaveral, FL, United States
