TY - JOUR
T1 - Secular variation of Delta C-14 during the Medieval Solar Maximum
T2 - A progress report
AU - Damon, P.E.
AU - Eastoe, C.J.
AU - Hughes, M.K.
AU - Kalin, R.M.
AU - Long, A.
AU - Peristykh, A.N.
N1 - 16th International Radiocarbon Conference, GRONINGEN, NETHERLANDS, JUN, 1997
PY - 1998
Y1 - 1998
N2 - The Earth is within the Contemporaneous Solar Maximum (CSM), analogous to the Medieval Solar Maximum (MSM). If this analogy is valid, solar activity will continue to increase well into the 21st century, we have completed 75 single-ring and 10 double-ring measurements from AD 1065 to AD 1150 to obtain information about solar activity during this postulated analog to solar activity during the MSM. Delta(14)C decreases steadily during the period AD 1065 to AD 1150 but with cyclical oscillations around the decreasing trend. These oscillations can be successfully modeled by four cycles. These four frequencies are 1/52 yr(-1), 1/22 yr(-1), 1/11 yr(-1), and 1/5.5 yr, i.e., the 4th harmonic of the Suess cycle, the Hale and Schwabe cycles and the 2nd harmonic of the Schwabe cycle.
AB - The Earth is within the Contemporaneous Solar Maximum (CSM), analogous to the Medieval Solar Maximum (MSM). If this analogy is valid, solar activity will continue to increase well into the 21st century, we have completed 75 single-ring and 10 double-ring measurements from AD 1065 to AD 1150 to obtain information about solar activity during this postulated analog to solar activity during the MSM. Delta(14)C decreases steadily during the period AD 1065 to AD 1150 but with cyclical oscillations around the decreasing trend. These oscillations can be successfully modeled by four cycles. These four frequencies are 1/52 yr(-1), 1/22 yr(-1), 1/11 yr(-1), and 1/5.5 yr, i.e., the 4th harmonic of the Suess cycle, the Hale and Schwabe cycles and the 2nd harmonic of the Schwabe cycle.
KW - Contemporaneous Solar Maximum
KW - Medieval Solar Maximum
KW - solar activity
KW - Suess cycle
KW - Hale cycle
KW - Schwabe cycle
UR - http://strathprints.strath.ac.uk/16285/
UR - http://digitalcommons.library.arizona.edu/objectviewer?o=http%3A%2F%2Fradiocarbon.library.arizona.edu%2FVolume40%2FNumber1%2Fazu_radiocarbon_v40_n1_343_350_v.pdf
M3 - Article
VL - 40
SP - 343
EP - 350
JO - Radiocarbon
JF - Radiocarbon
SN - 0033-8222
IS - 1
ER -