Results 141 to 150 of about 3,105 (240)

SSTrack: An Automatic Sunspot Identification and Tracking Algorithm to Support the Measurement of Sunspot Rotation. [PDF]

Sol Phys
Proverbs C, Brown D.
europepmc   +1 more source

Evolution of Open Magnetic Flux and Heliospheric Current Sheet-Associated Streamer Wind Across Multiple Solar Cycles. [PDF]

Sol Phys
MacTaggart JR, Zhao L, Lepri ST, Fisk LA, Nakhleh AJ.   +4 more
europepmc   +1 more source

Does the 11-year solar cycle affect lake and river ice phenology? [PDF]

PLoS One, 2023
Schmidt DF, Grise KM, Pace ML.
europepmc   +1 more source

A Solar Cycle Lost in 1793-1800: Early Sunspot Observations Resolve the Old Mystery

, 2009
Because of the lack of reliable sunspot observations, the quality of the sunspot number series is poor in the late 18th century, leading to the abnormally long solar cycle (1784–1799) before the Dalton minimum. Using the newly recovered solar drawings by
Kalevi Mursula, Johannes Fabricius, Thomas Harriot, Galileo Galilei, Ilya G. Usoskin, Gennady A. Kovaltsov, Rainer Arlt   +6 more
core  

Extremely active Sun from 1190 to 1220 in the Medieval Period: Intercomparison of historical records and tree-ring carbon-14. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci
Miyahara H, Kataoka R, Yamamoto K, Tokanai F, Moriya T, Takeyama M, Sakurai H, Ohyama M, Horiuchi K, Hotta H.   +9 more
europepmc   +1 more source

SUNSPOTS CYCLE AND JETS

, 2019
MAJOR ADVISOR: DR. ANNO KARE (PHD) ABSTRACT The fundamental physics as introduced by the Magnetic interaction hypothesis has led to an entirely new hypothesis for solar activity and energy transformation.This important aspect has laid the bases upon which solar activities and External Magnetic Field could better be understood.
openaire   +2 more sources

Decadal East Asian monsoon anomalies and implications for societal conflicts. [PDF]

Sci Adv
Zhao K, Liang Y, Huang C, Wang Y, Sun W, Cheng H, Yin J, Hu D, Yan M, Ning L, Yu Z, Edwards RL.   +11 more
europepmc   +1 more source

Can Sunspot Activity Affect the Population Dynamics of Cotton Bollworm, <i>Helicoverpa armigera</i> (Hübner) (Lepidoptera: Noctuidae)? [PDF]

Insects
Huang J, Wang X.
europepmc   +1 more source

Sunspot Number Variations [PDF]

In this activity students find the patterns that emerge when sunspot numbers are plotted over a period of time. Students learn about sunspot variations and the solar cycle, and are able to predict future solar minimums and solar maximums.
Beverly Meier
core  

Helioseismic evidence that the solar dynamo originates near the tachocline. [PDF]

Sci Rep
Mandal K, Kosovichev AG.
europepmc   +1 more source