gulfOfAlaska {paleoAM} | R Documentation |
Benthic Foram Abundances from the Gulf of Alaska Reported by Sharon et al 2021
Description
Loads the foraminifera abundances collected and published by Sharon et al. (2021), as used in the simulation analyses published in Belanger and Bapst (2023).
Format
This data set is composed of three objects:
- fullDataTable_GOA
The full data table containing sample IDs, DCA-1 scores and species abundances.
- DCA1_GOA
A vector of just the DCA-1 scores for each sample.
- abundData_GOA
The number of specimens identified as a particular species for each sample.
Details
This data set contains the absolute abundances (number of specimens identified) for 48 species of benthic foraminifera, across 355 samples, taken from Sharon et al (2021). These samples were collected from the less than 63 micrometer size-fractions taken from Integrated Ocean Drilling Program Expedition 341 Site U141 and the co-located jumbo piston core, respectively located at 697 meters and 682 meters water depth in the Gulf of Alaska (Jaeger et al., 2014).
Source
Belanger, Christina L., and David W. Bapst. 2023. "Simulating our ability to accurately detect abrupt changes in assemblage-based paleoenvironmental proxies." Palaeontologia Electronica 26 (2), 1-32
Jaeger, J.M., Gulick, S.P.S., LeVay, L.J., Asahi, H., Bahlburg, H., Belanger, C.L., Berbel, G.B.B., Childress, L.B., Cowan, E.A., Drab, L., Forwick, M., Fukumura, A., Ge, S., Gupta, S.M., Kioka, A., Konno, S., März, C.E., Matsuzaki, K.M., McClymont, E.L., Mix, A.C., Moy, C.M., Müller, J., Nakamura, A., Ojima, T., Ridgway, K.D., Rodrigues Ribeiro, F., Romero, O.E., Slagle, A.L., Stoner, J.S., St-Onge, G., Suto, I., Walczak, M.H., and Worthington, L.L., 2014. Expedition 341 summary. In Jaeger, J.M., Gulick, S.P.S., LeVay, L.J., and the Expedition 341 Scientists, Proceedings of IODP, 341: College Station, TX (Integrated Ocean Drilling Program).
Sharon, Christina Belanger, Jianghui Du, and Alan Mix. "Reconstructing paleo‐oxygenation for the last 54,000 years in the Gulf of Alaska using cross‐validated benthic foraminiferal and geochemical records." Paleoceanography and Paleoclimatology 36, no. 2 (2021): e2020PA003986.
See Also
Examples
data(gulfOfAlaska)
########################
# (This is not to be run, just showing how data was loaded)
#
# # Loading the data files used by Belanger & Bapst 2023
# # taken from Sharon et al. supplemental
# fullDataTable_GOA <- read.table(
# "foram_abundances_forSimulations.txt",
# header = TRUE)
#
# DCA1_GOA <- fullDataTable_GOA$DCA1
# abundData_GOA <- fullDataTable_GOA[,-(1:5)]
#
# save(fullDataTable_GOA, DCA1_GOA, abundData_GOA,
# file = "data/gulfOfAlaska.Rdata")