Results 11 to 20 of about 8,624 (295)

FUNCTIONAL SUNSPOT EQUILIBRIA [PDF]

open access: yesJournal of Mathematical Economics, 2006
Consider a one step forward looking model where agents believe that the equilibrium values of the state variable are determined by a function whose domain is the current value of the state variable and whose range is the value for the subsequent period ...
Shurojit Chatterji, Subir Chattopadhyay
core   +8 more sources

Prediction of even and odd sunspot cycles [PDF]

open access: yesJournal of Space Weather and Space Climate, 2023
Here we study the prediction of even and odd numbered sunspot cycles separately, thereby taking into account the Hale cyclicity of solar magnetism. We first show that the temporal evolution and shape of all sunspot cycles are extremely well-described by ...
Asikainen Timo, Mantere Jani
doaj   +2 more sources

Sunspot cycles

open access: yesEconomic Theory, 2003
This paper shows new properties about the equilibria of a stationary OG economy by establishing a connection between its stationary equilibria and those of a finite economy, with and without extrinsic uncertainty.
Davila, Julio   +2 more
core   +4 more sources

Sunspot Seismology [PDF]

open access: yesSymposium - International Astronomical Union, 1988
The 5 minute oscillations in a sunspot umbra are the response of the sunspot to forcing by the 5 minute p-modes in the surrounding convection zone (Thomas 1981). This interaction of solar p-modes with a sunspot can be used to probe the structure of a sunspot beneath the visible surface of the Sun (Thomas, Cram, and Nye 1982). Here we report briefly the
John H. Thomas   +2 more
openaire   +1 more source

Von Lindener's sunspot data: sunspot group number and individual sunspot number

open access: yes, 2023
Hayakawa et al. (2023) derived sunspot group number and individual sunspot number from von Liindener's records. These data have been extracted from von Lindener's manuscript (Akc.1985/15) in the Library of Wrocław University and Bode (1819).
早川, 尚志, Hayakawa, Hisashi
core   +1 more source

Sunspot Number Prediction Using Gated Recurrent Unit (GRU) Algorithm

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2021
Sunspot is an area on photosphere layer which is dark-colored. Sunspot is very important to be researched because sunspot is affected by sunspot numbers, which present the level of solar activity. This research was conducted to make prediction on sunspot
Unix Izyah Arfianti   +4 more
doaj   +1 more source

Katsue Misawa's sunspot data: sunspot group number and individual sunspot number

open access: yes, 2023
These files show Katsue Misawa's sunspot observations with her 3-inch rafractor telescope from 1921 to 1934.
早川, 尚志, Hayakawa, Hisashi
core   +1 more source

Study of the effect of sunspots on seasonal and annual precipitation through wavelet analysis: A case study of the stations in Isfahan and Kashan [PDF]

open access: yesکاوش‌های جغرافیایی مناطق بیابانی, 2021
Introduction: The sun is the main source of Earth energy and its climate changes. Changes in the amount of energy emitted from the sun or in its surface temperature can cause fluctuations in the atmosphere.
Kamal Omidvar   +2 more
doaj  

Katsue Misawa's sunspot drawngs: 1921 -- 1934

open access: yes, 2023
These files show Katsue Misawa's sunspot observations with her 3-inch rafractor telescope from 1921 to 1934. Their original records are preserved in Misawa Memorial Archives.
Misawa, Katsue, 三澤, 勝衛
core   +1 more source

Introduction to Sunspots and Lotteries [PDF]

open access: yesJournal of Economic Theory, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Edward C. Prescott, Karl Shell
openaire   +1 more source

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