elliot_yr1 {ClamR}

Elliot Data Summer

Description

Two years of data from Elliot

Usage

data("elliot_yr1")

Format

The format is: List of 4 $ date1 : num [1:28] 1995 1995 1995 1995 1995 ... $ d18o1 : num [1:28] -0.036 0.244 0.525 0.332 0.148 -0.43 -0.583 -0.366 -0.641 -0.86 ... $ date_temp1: num [1:31] 1995 1995 1995 1995 1995 ... $ d18o_pred1: num [1:31] -0.58 0 0.54 0.88 0.66 0.35 0.09 -0.09 -0.53 -1.1 ...

Details

Data consists of date, \delta 18O, temperature and predicted anomaly for two years of data.

Source

Data sets are selected from the \delta 18O record of a modern Mercenaria mercenaria shell collected live from Cedar Key in northern Florida and analyzed by Elliot et al. (2003). Series elliot_yr1 records one summer (including the most negative \delta 18O). Series elliot_yr2 records one winter (including the most positive \delta 18O).

Because the modern Mercenaria mercenaria shell by Elliot et al. (2003) is well dated and its in situ records of SST and salinity are available, the predicted \delta 18O are also derived from the local instrumental data. Temp is the predicted \delta 18O for the summer interval of Year1 and Temp2 is the predicted \delta 18O for the winter interval of Year2.

References

Wang, T., Surge, D., and Lees, J. M., (2015) ClamR: A Statistical Evaluation of Isotopic and Temperature Records in Sclerochronologic Studies. Palaeogeography, Palaeoclimatology, Palaeoecology, doi:10.1016/j.palaeo.2015.07.008.

Examples

data(elliot_yr1)
plot(elliot_yr1$date1,elliot_yr1$d18o1,xlab="Age(years)",
     ylab=expression(delta*'18O(ppm VPDB)'), xlim=c(1994.9,1996.2), ylim=c(-2.5,2))