GEBCO 2014 is not documented

[mdsumner]

raadtools/R/topo.R

Lines 90 to 102 in 017e116

	#' \item{gebco_08}{The GEBCO_08 Grid, a global 30 arc-second grid largely generated by combining quality-controlled ship depth soundings with interpolation between sounding points guided by satellite-derived gravity data. \url{http://www.gebco.net/data_and_products/gridded_bathymetry_data/}}
	#' \item{ibcso}{IBCSO bathymetry data, resolution 1min, use argument \code{polar = TRUE} to return the projected version (polar stereographic with true scale at 71S, WGS84), 500m resolution. \url{http://www.ibcso.org/data.html}. Default is Ice Surface 'ibcso_is', use 'ibcso_bed' for Bedrock.}
	#' \item{etopo1}{ETOPO1 is a 1 arc-minute global relief model of Earth's surface that integrates land topography and ocean bathymetry. \url{http://www.ngdc.noaa.gov/mgg/global/global.html}}
	#' \item{etopo2}{Historic and deprecated prior version of ETOPO1. \url{http://www.ngdc.noaa.gov/mgg/global/etopo2.html}}
	#' \item{kerguelen}{Kerguelen Plateau Bathymetric Grid, GeoScience Australia}
	#' \item{george_v_terre_adelie}{A bathymetric Digital Elevation Model (DEM) of the George V and Terre Adelie continental shelf and margin - 100, 250, and 500 metre resolution. \url{http://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=AMD/AU/GVdem_2008}}
	#' \item{smith_sandwell}{Global seafloor topography from satellite altimetry and ship depth soundings. \url{http://topex.ucsd.edu/WWW_html/mar_topo.html}}
	#' \item{cryosat2}{Antarctica CryoSat-2 Digital Elevation Model (DEM). \url{https://earth.esa.int/web/guest/missions/esa-operational-eo-missions/cryosat}}
	#' \item{lake_superior}{Bathymetry of Lake Superior \url{https://www.ngdc.noaa.gov/mgg/greatlakes/superior.html}}
	#' \item{ramp}{Radarsat Antarctic digital elevation model V2 \url{https://github.com/AustralianAntarcticDivision/blueant#radarsat-antarctic-digital-elevation-model-v2}}
	#' \item{ga_srtm}{Digital Elevation Model (DEM) of Australia with 1 Second Grid}
	#' \item{rema_1km, rema_200m, rema_100m, rema_8m}{Reference Elevation Model of Antartica (REMA) for the peninsula, see `read_rema_tiles` for the index}
	#' \item{gebco_19}{GEBCO_2019 Grid https://www.gebco.net/data_and_products/gridded_bathymetry_data/gebco_2019/gebco_2019_info.html}

[mdsumner]

Mike, still need to update the file listing to only get the new 'open_download' file.

[mdsumner]

also 2021 and 2022 to add now ...