Author name code: schove
ADS astronomy entries on 2022-09-14
author:Schove, D. Justin
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Title: Chronology of eclipses and comets, A.D. 1-1000
Authors: Schove, Derek Justin; Fletcher, Alan
Bibcode: 1987ceca.book.....S
Altcode: 1987QB541.S34......
  No abstract at ADS

Title: Book-Review - Chronology of Eclipses and Comets
Authors: Schove, D. J.; Fletcher, A.
Bibcode: 1986Obs...106...92S
Altcode:
  No abstract at ADS

Title: Book-Review - Chronology of Eclipses and Comets 1-1---AD
Authors: Schove, D. J.; Fletcher, A.
Bibcode: 1985S&T....70Q.336S
Altcode:
  No abstract at ADS

Title: Book-Review - Sunspot Cycles
Authors: Schove, D. J.; Kopecky, M.
Bibcode: 1985BAICz..36..252S
Altcode:
  No abstract at ADS

Title: Book-Review - Sunspot Cycles
Authors: Schove, D. J.
Bibcode: 1985S&T....69Q.132S
Altcode:
  No abstract at ADS

Title: Chronology of eclipses and comets, AD 1-1000
Authors: Schove, Derek Justin
Bibcode: 1984ceca.book.....S
Altcode: 1984QB541.S34......
  No abstract at ADS

Title: Sunspot cycles and global oscillations.
Authors: Schove, D. J.
Bibcode: 1984ccym.conf..257S
Altcode:
  No abstract at ADS

Title: Maya Correlations Mood Ages and Astronomical Cycles
Authors: Schove, D. J.
Bibcode: 1984JHA....15...18S
Altcode:
  No abstract at ADS

Title: Sunspot, auroral, radiocarbon and climatic fluctuations since
    7000 BC.
Authors: Schove, D. J.
Bibcode: 1983AnGeo...1..391S
Altcode:
  No abstract at ADS

Title: Sunspot cycles.
Authors: Schove, D. J.
Bibcode: 1983sucy.book.....S
Altcode: 1983STIA...8429019S
  Papers on various aspects of sunspot cycles are presented. Early
  and recent papers on sunspots, aurorae, the eleven-year and longer
  cycles, sunspots in history and their effect on climate, and varves
  and geological cycles are included. Several papers on ancient aurorae
  are given. No individual items are abstracted in this volume

Title: Sunspot cycles
Authors: Schove, Derek Justin
Bibcode: 1982sucy.book.....S
Altcode: 1982QB525.S86......
  No abstract at ADS

Title: The 200-, 22- and 11-YEAR Cycles and Long Series of Climatic
    Data Mainly Since a. D. 200
Authors: Schove, D. J.
Bibcode: 1981sucl.conf...87S
Altcode:
  No abstract at ADS

Title: Aurorae, sunspots and weather, mainly since A.D. 1200
Authors: Schove, D. J.
Bibcode: 1981epua.proc..421S
Altcode:
  A further set of rules is incorporated into those employed by the
  Spectrum of Time project to estimate sunspot activity and the dates of
  maxima and minima, where (1) the time between sunspot maxima depends
  on the ratio of the amplitudes, and (2) the time of rise is usually
  dependent on the strength of the next maxima, and the time of fall
  is low when a moderate cycle is followed by a strong one. Sun-weather
  relationships can be investigated by means of long time series of ice
  core, tree ring or varve data, if sunspot cycle amplitude classes are
  taken into account. The sun affects the weather indirectly through the
  atmospheric pressure parameter, which responds differently to strong
  and weak sunspot cycles.

Title: Sunspot Turning-Points and Aurorae Since A. D. 1510
Authors: Schove, D. J.
Bibcode: 1979SoPh...63..423S
Altcode:
  Dates of solar maxima and minima extending back to c. 1610 were
  estimated by Wolf and Wolfer at Zürich (Waldmeier, 1961) in the
  nineteenth century, and those back to c. 1710 have been generally
  accepted. Slight modifications have already been suggested by the author
  (Schove, 1967) for the seventeenth century, although, in that century,
  even the existence of the eleven-year cycle has been questioned
  (Eddy, 1976). In the course of any sunspot cycle we find a pattern
  of the aurorae in place and time characteristic of sunspot cycles of
  the particular amplitude-class. These patterns since c. 1710 can be
  linked to the precise dates of the Zürich turning-points by a set of
  empirical rules. A sunspot rule is based on the Gnevyshev gap, the gap
  in large sunspots near the `smoothed' maximum. These rules are here
  applied to the period c. 1510-1710 to give improved determination of
  earlier turning-points, and approximately confirm the dates given for
  the seventeenth century by Wolfer and for most of the later sixteenth
  century by Link (1978). Some turning-points for the fifteenth century
  and revised sunspot numbers for the period 1700-48 are also given.

Title: Reflections of the Maunder Minimum of sunspots.
Authors: Gleissberg, W.; Damboldt, T.; Schove, D. J.
Bibcode: 1979JBAA...89..440G
Altcode:
  No abstract at ADS

Title: Maya chronology and planetary conjunctions.
Authors: Schove, D. J.
Bibcode: 1977JBAA...88...38S
Altcode:
  No abstract at ADS

Title: Maya dates AD 352-1296
Authors: Schove, D. J.
Bibcode: 1977Natur.268..670S
Altcode:
  No abstract at ADS

Title: The Mayas and the planets, AD 293 - 1237.
Authors: Schove, D. J.
Bibcode: 1976JBAA...86..466S
Altcode:
  No abstract at ADS

Title: Mayan chronology and `the spectrum of time'
Authors: Schove, D. J.
Bibcode: 1976Natur.261..471S
Altcode:
  By applying methods used in varve<SUP>1</SUP> and tree-ring<SUP>2</SUP>
  analysis to link the floating Mayan chronology with the anchored
  chronology of calculated planetary positions a new correlation has
  been derived. The intervals between certain Mayan dates are known
  to be multiples of the synodic periods of several planets. Mayan
  astronomers are assumed to have observed close conjunctions of two or
  more planets; this is tested by comparisons with observed or calculated
  conjunctions. I conclude that the Mayan dates as conventionally
  expressed are 27.3 yr too old. The suggested correlation number is
  594,250 +/- 1d, the difference between the Julian and the Mayan day
  numbers.

Title: Comet chronology in numbers, AD 200 - 1882.
Authors: Schove, D. J.
Bibcode: 1975JBAA...85..401S
Altcode:
  No abstract at ADS

Title: The Leonids: Who SAW Them First?
Authors: Schove, D. J.
Bibcode: 1972S&T....43..156S
Altcode:
  No abstract at ADS

Title: Astro-Archaeology Symposium
Authors: Schove, D. J.
Bibcode: 1970JBAA...80..382S
Altcode:
  No abstract at ADS

Title: Solar-terrestrial relationships, Brussels, 1968 Sept.
Authors: Schove, D. J.
Bibcode: 1969JBAA...79..384S
Altcode:
  No abstract at ADS

Title: Eclipses, Comets and the Spectrum of Time in Africa
Authors: Schove, D. J.
Bibcode: 1968JBAA...78...91S
Altcode:
  No abstract at ADS

Title: Solar cycles and equatorial climates
Authors: Schove, D. J.
Bibcode: 1964GeoRu..54..448S
Altcode:
  Solar cycles and equatorial climates

Title: Halley's Comet and Kamienski's Formula
Authors: Schove, D. Justin
Bibcode: 1956JBAA...66..131S
Altcode:
  No abstract at ADS

Title: Halley's Comet, I: 1930 B.C. to A.D. 1986
Authors: Schove, D. Justin
Bibcode: 1955JBAA...65..285S
Altcode:
  No abstract at ADS

Title: The Comet of David and Halley's Comet
Authors: Schove, D. Justin
Bibcode: 1955JBAA...65..289S
Altcode:
  No abstract at ADS

Title: The Sunspot Cycle, 649 B.C. to A.D. 2000
Authors: Schove, D. Justin
Bibcode: 1955JGR....60..127S
Altcode:
  Annual sunspot numbers since 1700 and the known maxima and minima
  since 1610 show a similarity of pattern from century to century. This
  suggests that the mean cycle is approximately 11-1/9 years. The records
  of sunspots and aurorae enable magnitudes and dates of sunspot maxima
  since at least A.D. 300 to be estimated. The constancy of the mean
  cycle over long periods enables the number of missing maxima to be
  calculated, and, using certain general principles, a table of minima
  complete since at least 200 B.C. can be established. A 78-year cycle
  appears to exist in the length of the sunspot cycle and an irregular
  cycle of about 200 to 205 years may exist in auroral intensity. A
  characteristic pattern in even centuries enables some predictions to
  be made for the next 50 years. Intervals between intense maxima in the
  range 200 to 1,000 years apart show clusters at certain values; these
  values are close to multiples of 11.11. Intervals between well-dated
  maxima since A.D. 300 are often slightly less than such multiples,
  for example, 554 instead of 555; from B.C. 200 to A.D. 300, intervals
  are slightly greater. In classical and early medieval times the cycle
  was thus slightly less. The variability of the sunspot cycle is only
  apparent. The fundamental rhythm of 11.1 years (together with the
  78-year cycle) is constant through the centuries; temporary aberrations
  are partly due to variations in sunspot intensity, inasmuch as active
  cycles tend to become "early" and weak cycles "late."

Title: Sunspot epochs 188 A. D. to 1610 A. D
Authors: Schove, D. Justin
Bibcode: 1948PA.....56..247S
Altcode:
  No abstract at ADS

