This function lists the sea surface temperature (SST) products that the package knows: the
built-in NOAA ERSST v5, and the products that download_sst_data() can download. For each it
gives the provider, grid, first year, data sources, treatment of sea ice, licence, the
reference to cite and the approximate download size. Any other gridded SST in NetCDF files can
also be used by giving its path (see fao_area_sst()).
Value
A data frame with one row per product: product (the name used as sst), name,
provider, grid, first_year (first complete year), data_sources, sea_ice, licence,
citation, doi, homepage (web page of the product), download (server and dataset),
mb_per_year (approximate download size) and built_in.
Details
- ersst5 (built in, default)
NOAA Extended Reconstructed SST version 5 (Huang et al. 2017): 2° x 2°, monthly, from 1854. In situ observations only (ships and buoys of ICOADS, Argo floats from 1999).
- hadisst1
Met Office Hadley Centre HadISST1 (Rayner et al. 2003): 1° x 1°, monthly, from 1870. In situ observations (Met Office Marine Data Bank, with GTS reports from 1982; ICOADS monthly medians for 1871-1995), reconstructed by reduced-space optimal interpolation. The dataset description carries a warning (10 March 2016) that problems found in an analysis by D. Chelton and C. Risien may limit its use where high resolution or SST gradients matter (see References).
- cobe2
Japan Meteorological Agency COBE-SST2 (Hirahara et al. 2014): 1° x 1°, monthly, from 1850. In situ SST and sea-ice observations; satellite observations are used to reconstruct variability in regions with few observations.
- oisst21
NOAA Optimum Interpolation SST version 2.1 (Huang et al. 2021): daily 0.25° x 0.25° analysis from September 1981 (monthly means from NOAA PSL; averaged to 1° by the package). Satellite (AVHRR), ship, buoy and Argo observations. Only from 1982.
Only the table of ERSST v5 comes with the package, to keep it small; its data are also the
smallest to download (about 0.8 MB per year, against 3 to 11 MB for the others). The web page
of each product is given in the column homepage.
References
Hirahara, S., Ishii, M. and Fukuda, Y. (2014). Centennial-scale sea surface temperature analysis and its uncertainty. Journal of Climate 27: 57-75. doi:10.1175/JCLI-D-12-00837.1
Huang, B., Thorne, P.W., Banzon, V.F., Boyer, T., Chepurin, G., Lawrimore, J.H., Menne, M.J., Smith, T.M., Vose, R.S. and Zhang, H.-M. (2017). Extended Reconstructed Sea Surface Temperature, Version 5 (ERSSTv5): Upgrades, Validations, and Intercomparisons. Journal of Climate 30: 8179-8205. doi:10.1175/JCLI-D-16-0836.1
Huang, B., Liu, C., Banzon, V., Freeman, E., Graham, G., Hankins, B., Smith, T. and Zhang, H.-M. (2021). Improvements of the Daily Optimum Interpolation Sea Surface Temperature (DOISST) Version 2.1. Journal of Climate 34: 2923-2939. doi:10.1175/JCLI-D-20-0166.1
Rayner, N.A., Parker, D.E., Horton, E.B., Folland, C.K., Alexander, L.V., Rowell, D.P., Kent, E.C. and Kaplan, A. (2003). Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century. Journal of Geophysical Research 108 (D14): 4407. doi:10.1029/2002JD002670
HadISST1 dataset description, with the warning of 10 March 2016 and a link to the analysis by D. Chelton and C. Risien (https://ir.library.oregonstate.edu/xmlui/handle/1957/58385): https://coastwatch.pfeg.noaa.gov/erddap/info/erdHadISST/index.html
Web pages of the products: ERSST v5 https://www.ncei.noaa.gov/products/extended-reconstructed-sst; HadISST1 https://www.metoffice.gov.uk/hadobs/hadisst/; COBE-SST2 https://psl.noaa.gov/data/gridded/data.cobe2.html; OISST v2.1 https://www.ncei.noaa.gov/products/optimum-interpolation-sst
Examples
fao_sst_products()[, c("product", "name", "grid", "first_year", "built_in")]
#> product name
#> 1 ersst5 NOAA ERSST v5
#> 2 hadisst1 Met Office HadISST1
#> 3 cobe2 JMA COBE-SST2
#> 4 oisst21 NOAA OISST v2.1
#> grid
#> 1 2 x 2 degrees, monthly
#> 2 1 x 1 degree, monthly
#> 3 1 x 1 degree, monthly
#> 4 0.25 x 0.25 degree, monthly means of daily analyses (averaged to 1 degree by the package)
#> first_year built_in
#> 1 1854 TRUE
#> 2 1870 FALSE
#> 3 1850 FALSE
#> 4 1982 FALSE