R scripts for fitting composite curves of charcoal data
The intention of these pages is to describe and document the analysis steps that were developed as a set of Fortran programs, and are now implemented in the R paleofire package, with a focus on GCDv3 (Marlon et al., 2016). The scripts also provide a “point-of-departure” for the development and testing of additional analysis procedures that are not currently implemented in the paleofire package.
Contents:
- Overview: Discussion of analysis steps
- Analyses: Annotated (RMarkdown) code for the analyses
- Code: R code that can be saved and run as scripts
Links and other information sources:
- Global Paleofire Working Group (GPWG) [http://www.gpwg.paleofire.org/]
- Global Charcoal Database [http://paleofire.org/]
- Marlon, J. R., Kelly, R., Daniau, A.-L., Vannière B., Power, M. J., Bartlein, P., Higuera, P., Blarquez, O., Brewer, S., Brücher, T., Feurdean, A., Gil Romera, G., Iglesias, V., Maezumi, S. Y., Magi, B., Courtney Mustaphi, C. J., Zhihai, T. (2016). Reconstructions of biomass burning from sediment charcoal records to improve data-model comparisons. Biogeosciences 13:3225-3244. [doi:10.5194/bg-13-3225-2016]
- Blarquez O., Vannière, B., Marlon J. R., Daniau A.-L., Power M. J., Brewer S., Bartlein P. J., (2014). paleofire: an R package to analyse sedimentary charcoal records from the Global Charcoal Database to reconstruct past biomass burning. Computers & Geosciences 72:255-261. [doi:10.1016/j.cageo.2014.07.020]
- Daniau, A.-L. et al. (2012). Predictability of biomass burning. Global Biogeochemical Cycles 26:GB4007. [doi:10.1029/2011GB004249]
- Power, M.J., Marlon, J.R., Bartlein, P.J., Harrison, S.P., 2010. Fire history and the Global Charcoal Database: A new tool for hypothesis testing and data exploration. Palaeogeography Palaeoclimatology Palaeoecology 291:52-59. [doi:10.1016/j.palaeo.2009.09.014]
The development of these scripts was supported by NSF grant BCS-1437074.
The GitHub repository for these webpages is at https://github.com/pjbartlein/GCDv3Analysis/