Copy one of the calibration curves into memory.
ccurve(cc = 1, postbomb = FALSE, ccdir = NULL)The calibration curve (invisible).
Calibration curve for 14C dates: cc=1 for IntCal20 (northern hemisphere terrestrial), cc=2 for Marine20 (marine),
cc=3 for SHCal20 (southern hemisphere terrestrial). Alternatively, one can also write, e.g., "IntCal20", "Marine13".
Use postbomb=TRUE to get a postbomb calibration curve (default postbomb=FALSE). For monthly data, type e.g. ccurve("sh1-2_monthly")
Directory of the calibration curves. Defaults to where the package's files are stored (system.file), but can be set to, e.g., ccdir="curves".
Copy the radiocarbon calibration curve defined by cc into memory.
Hammer and Levin 2017, "Monthly mean atmospheric D14CO2 at Jungfraujoch and Schauinsland from 1986 to 2016", heiDATA: Heidelberg Research Data Repository V2 tools:::Rd_expr_doi("10.11588/data/10100")
Hogg et al. 2013 SHCal13 Southern Hemisphere Calibration, 0–50,000 Years cal BP. Radiocarbon 55, 1889-1903. tools:::Rd_expr_doi("10.2458/azu_js_rc.55.16783")
Hogg et al. 2020 SHCal20 Southern Hemisphere calibration, 0-55,000 years cal BP. Radiocarbon 62. tools:::Rd_expr_doi("10.1017/RDC.2020.59")
Hua et al. 2013 Atmospheric radiocarbon for the period 1950-2010. Radiocarbon 55(4), tools:::Rd_expr_doi("10.2458/azu_js_rc.v55i2.16177")
Hua et al. 2021 Atmospheric radiocarbon for the period 1950-2019. Radiocarbon in press, tools:::Rd_expr_doi("10.1017/RDC.2021.95")
Hughen et al. 2020 Marine20-the marine radiocarbon age calibration curve (0-55,000 cal BP). Radiocarbon 62. tools:::Rd_expr_doi("10.1017/RDC.2020.68")
Levin and Kromer 2004 "The tropospheric 14CO2 level in mid latitudes of the Northern Hemisphere" Radiocarbon 46, 1261-1272
Reimer et al. 2004 IntCal04 terrestrial radiocarbon age calibration, 0–26 cal kyr BP. Radiocarbon 46, 1029–1058. tools:::Rd_expr_doi("10.1017/S0033822200032999")
Reimer et al. 2009 IntCal09 and Marine09 radiocarbon age calibration curves, 0–50,000 years cal BP. Radiocarbon 51, 1111–1150. tools:::Rd_expr_doi("10.1017/S0033822200034202")
Reimer et al. 2013 IntCal13 and Marine13 radiocarbon age calibration curves 0–50,000 years cal BP. Radiocarbon 55, 1869–1887. tools:::Rd_expr_doi("10.2458/azu_js_rc.55.16947")
Reimer et al. 2020 The IntCal20 Northern Hemisphere radiocarbon age calibration curve (0–55 cal kBP). Radiocarbon 62, 725-757. tools:::Rd_expr_doi("10.1017/RDC.2020.41")
Stuiver et al. 1998 INTCAL98 radiocarbon age calibration, 24,000–0 cal BP. Radiocarbon 40, 1041-1083. tools:::Rd_expr_doi("10.1017/S0033822200019123")
intcal20 <- ccurve(1)
marine20 <- ccurve(2)
shcal20 <- ccurve(3)
marine98 <- ccurve("Marine98")
pb.sh3 <- ccurve("sh3")
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