Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives. Most data sets include raw treering measurements (most are annual ring width, with some
NOAA National Centers for Environmental Information2002-01-01 更新10
Species: Quercus species; No of rings: 109; first year: 1518; end year: 1627; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 30; Last ring under bark: present
