Other datasets provided with oce: adp,
  adv, argo, cm,
  coastlineWorld, ctdRaw,
  ctd, echosounder,
  landsat, lisst,
  lobo, met,
  ocecolors,
  sealevelTuktoyaktuk,
  sealevel, section,
  topoWorld, wind
Other things related to rsk data: [[,rsk-method,
  [[<-,rsk-method, as.rsk,
  plot,rsk-method, read.rsk,
  rsk-class, rskPatm,
  rskToc, subset,rsk-method,
  summary,rsk-method