Minimum of Solar Cycle # 23 and beginning of Solar Cycle#24 Florian Nichitiu, UofT, may 2008. May 2008 At present,

Slides:

Advertisements

Similar presentations

Is the shape below a function? Explain. Find the domain and range.

Advertisements

1 Effects of solar activity, co-rotating interaction regions, and climate change on thermospheric density during the solar cycle 23/24 minimum Stan Solomon.

Observing OH Response to the Solar Cycle  Over 5-year Aura MLS OH Measurements in Combination With the 13-year Ground-based FTUVS OH Measurement Shuhui.

Sixty+ Years of Solar Microwave Flux Leif Svalgaard Stanford University SHINE 2010, Santa Fe, NM.

CAUSE OF ‘THE PAUSE’ IN GLOBAL WARMING: ITS IMPLICATIONS FOR FUTURE CLIMATES- THE PAST IS THE KEY TO THE FUTURE Don J. Easterbrook Dept. of Geology Western.

29 April 2011Viereck: Space Weather Workshop 2011 The Recent Solar Minimum: How Low Was It? What Were The Consequences? Rodney Viereck NOAA Space Weather.

Propagation Index and Short Wave Communications Rodney Wolfe N3XG.

Space Weather: What IS the Sun Doing? Joe Kunches NOAA Space Weather Prediction Center (nee Space Environment Center) Boulder, CO ILA-36 Orlando October.

1 G. Cessateur, T. Dudok de Wit, M. Kretzschmar, L. Vieira LPC2E, University of Orléans, France J. Lilensten LPG, University of Grenoble, France New Models.

The EUV spectral irradiance of the Sun from minimum to maximum Giulio Del Zanna Department of Space and Climate Physics University College London Vincenzo.

2008/10/21 J. Fontenla, M Haberreiter LASP – Univ. of Colorado NADIR MURI Focus Area.

Temperature Minimum Region between the Minimum-Activity Epochs and W. Livingston and E. Avrett AGU Fall Meeting, 2003.

GRIPS Mask Design Rationale (1) Grid Pitch Parameters Minimum pitch, P min = 1.0 mm (set by detector resolution) Want a finite number, N v, of discrete.

1 Pedagogical Review on Solar Cycles King-Fai Li Caltech GPS, YL Yung Group Jan 17, 2007.

CS4432: Database Systems II

Review.  Name the Moon Phase Waning Crescent   How many tidal bulges are there at one time? Where do they occur in relation to one another? Tides.

Solar Irradiance Variability Rodney Viereck NOAA Space Environment Center Derived Total Solar Irradiance Hoyt and Schatten, 1993 (-5 W/m 2 ) Lean et al.,

Solar and Lunar Eclipse Terms

Adriana V. R. Silva CRAAM/Mackenzie COROT /11/2005.

Phases of the Moon.

Figure 1. Primary explanatory variables (basis functions) considered in the multiple regression statistical model. See the text for data sources.  Log.

Analysis of Raleigh’s Drought Triggers May 8, 2013 and.

MAESTRO Sun Scan Analysis Florian Nichitiu May 14, 2004.

Solar Cycle 24 Carl Luetzelschwab K9LA QCWA Chap 36 April 2012 K9LA.

The Unprecedented Solar Magnetic Fields and Their Implications December 21, 2009 Yu Yi Dept. of Astronomy & Space Science, Chungnam National University.

The day after solar cycle 23 IHY 2009 September 23, 2009 Yu Yi 1 and Su Yeon Oh 2 1 Dept. of Astronomy & Space Science, Chungnam National University, Korea.

Influence of space climate and space weather on the Earth Tamara Kuznetsova IZMIRAN Russia Heliophysical phenomena and Earth's environment, 7-13 September.

1 The Spots That Won’t Form Leif Svalgaard Stanford University 3 rd SSN Workshop, Tucson, AZ, Jan

Solar Soft X-Rays Data Periodic Analysis Pu Wang Department of Astronomy, Nanjing University Department of Astronomy, Nanjing University July 9, 2005

Axis – an imaginary line through the center of Earth that connects the North Pole to the South Pole. Earth rotates about its axis once every 24 hours.

U. IrisoECLOUD’04 – 21 April ECLOUD’04 April , Napa, CA Use of Maps for exploration of Electron Cloud parameter space Ubaldo Iriso and.

N. A. Schwadron U. New Hampshire Solar Wind and Coronal Electron Temperature in the Protracted Solar Minimum, the Cycle 24 Mini Maximum, and Over Centuries.

Fixed Income Analysis Week 4 Measuring Price Risk

Florian Nichitiu a,*, James R. Drummond a, Jiansheng Zou a, Robert Deschambault b a) Department of Physics, University of Toronto, Canada,60 St. George.

DYNAMIC OF ELECTROMAGNETIC EMISSION DURING THE PERIOD OF SOLAR EXTREME EVENTS M.S.Durasova, V.M.Fridman, T.S.Podstrigach, O.A.Sheiner, S.D.Snegirev, Yu.V.Tikhomirov.

Understanding Your Data Set Statistics are used to describe data sets Gives us a metric in place of a graph What are some types of statistics used to describe.

Consumer Behavior Topic 4. Utility  Like elasticity, Utility is another fancy name for satisfaction or happiness  Utility refers to satisfaction derived.

Copyright © 2005 Pearson Education, Inc. Slide 6-1.

SOLSTICE II -- Magnesium II M. Snow 1*, J. Machol 2,3, R. Viereck 4, M. Weber 5, E. Richard 1 1 Laboratory for Atmospheric and Space Physics, University.

First, we try to use HCL lamp for calibration. All visible lines relative to Ar801 line The degradation increases with wavelength, which is the opposite.

SCIENTIFIC LAB REPORT TITLE OF EXPERIMENT: HOW LIGHT WORKS TEAM MEMBERS: ALICIA AND MELISS.

Mike Lockwood (Southampton University & Space Science and Technology Department, STFC/Rutherford Appleton Laboratory ) Open solar flux and irradiance during.

Case Closed The New SAT Chapter 2 AP Stats at LSHS Mr. Molesky The New SAT Chapter 2 AP Stats at LSHS Mr. Molesky.

Summary Using 21 equatorial CHs during the solar cycle 23 we studied the correlation of SW velocity with the area of EIT CH and the area of NoRH RBP. SW.

Swedish Institute of Space Physics, Kiruna M. Yamauchi 1 Different Sun-Earth energy coupling between different solar cycles Acknowledgement:

What the Long-Term Sunspot Record Tells Us About Space Climate David H. Hathaway NASA/MSFC National Space Science and Technology Center Huntsville, AL,

Motion and Phases of the Moon The Moon appears to rise in the East and set in the West. This apparent motion of the moon is caused by the rotation.

Unit 3 – Association: Contingency, Correlation, and Regression Lesson 3-3 Linear Regression, Residuals, and Variation.

Phases of the Moon and Eclipses. O swear not by the moon, the inconstant moon, that monthly changes in her circled orb, lest that thy love prove likewise.

Results of TCL scans D. Mirarchi, M. Deile, S. Redaelli, B. Salvachua, Collimation Working Group, 22 nd February 2016.

Aim: How does the moon affect the earth?

Mid-term Periodicities of the LYRA data spectrum

Unit 2 Lesson 3 What Are Moon Phases?.

Science Planner 12/7/16 WALT: understand and graph Sunspot cycles.

Expansion in solids and liquids

Consequences of the Anomalous Expansion of CMEs in Solar Cycle 24

Tuning AUTCLN for editing

2.1 The Level of Overall Economic Activity

Ionospheric Effect on the GNSS Radio Occultation Climate Data Record

For a given CA II K-line index there are too few sunspots after 2000

CRaTER-specific LRO Mission Duration Issues

Teriaca, et al (2003) ApJ, 588, SOHO/CDS HIDA/DST 2002 campaign

Tides Tide- the rise and fall in sea level is called.

Query Functions.

The spectral evolution of impulsive solar X-ray flares

SIDC Space Weather Briefing

SIDC Space Weather Briefing

SIDC Space Weather Briefing

B. L. Alterman & Justin C. Kasper July 18, 2019

SIDC Space Weather Briefing

Presentation transcript:

Minimum of Solar Cycle # 23 and beginning of Solar Cycle#24 Florian Nichitiu, UofT, may May 2008 At present, Sun seems to have a long period of very low activity and this can rise the question of how special is Solar Cycle #23 comparing with other cycles. From the point of view of length and duration of different phases of the solar cycle, the present one, the SC#23, seems to be similar to all previous. On the other hand, solar indexes connected to UV emission, seems to indicate a higher than expected solar (UV) activity.

The value of length of the Solar Cycle seems to have no trend, but their variations,the cycle to cycle total cycle lengths, are reducing. The SC#24 will not have probably an anomalous length.

It is also observed some opposite trends for the length of the two phases of solar cycle: the ‘Rise to Max’ length of the solar cycle is decreasing while the ‘Fall to Min’ of the solar cycles is increasing

Taking into account that the last minimum (of SolCycle#22-SolCycle#23) was around and the expected ‘Rise to Max’ length of SolCycle#23 is around 4 years, the max of SolCycle#23 was around middle of year 2000 which is practically coincident with the first max recorded (in the table below we have used different solar indices to find out the time of the two maxims and the Gnevyshev gap). Max 1 Gnevyshev min Max 2 SSN Sun Spot Number MgII Core-to-wing Mg II index F Solar Radio Flux 10.7 cm. SSAtot Solar Spot Area With an expected years for the descending phase of SC#23 and if we take as correct solar max , we can expect to wait only another few months up to the real solar min SC23-SS24, or in other words up to beginning of SC24 (we are now at the end of May 2008). So, SC#23, from point of view of temporal parameters, is not a special cycle, as these parameters are in the expected limits.

The well known relation: Radio Flux (F10.7 cm) vs. Sun Spot Number, seems to be different only for this last Solar Cycle. More radio flux per sun spot during Solar Cycle #23 (than in previous solar cycles) and even more, on its descending phase. F10.7 > SSN ( from linear relation F10.7 vs SSN ) This is happened exactly after the Gnevyshev (gap) minimum

During SC#23 descending phase : MgII index is bigger than in previous cycles, and also bigger than radio flux at 10.7cm: MgII >> F10.7

During SC#23 descending phase : F10.7 > SSN ( from linear relation F10.7 vs SSN ) MgII >> F10.7 At the end of SC#23, Solar UV activity is higher than expected It is this in coincidence with low sun spot activity ?