"layout", "lcm", "legend", "lines", "locator", "mtext", "pairs", "par",
"smooth.spline", "spectrum", "ts", "uniroot", "var",

importFrom("utils", "capture.output", "download.file", "read.delim", "unzip")

importFrom("methods", "callNextMethod", "new", "slot<-", "slotNames",
importFrom("utils", "capture.output", "download.file", "read.delim", "unzip",

importFrom("graphics", ".filled.contour", "axTicks", "abline", "arrows", "axis",
"Axis", "axis.POSIXct", "box", "contour", "frame", "grid", "hist",
"image", "layout", "lcm", "legend", "lines", "locator", "mtext",
"pairs", "par", "plot", "plot.new", "plot.window", "points",
"polygon", "rect", "segments", "smoothScatter", "strheight",
"strwidth", "text", "title", "xinch", "yinch")
importFrom("methods", "as", "callNextMethod", "new", "slot<-", "slotNames",
importFrom("utils", "capture.output", "data", "download.file", "head",
"read.table", "setTxtProgressBar", "str", "tail", "txtProgressBar",

"polygon", "rect", "rug", "segments", "smoothScatter", "strheight",
"gsw_sigma0", "gsw_sigma1", "gsw_sigma2", "gsw_sigma3", "gsw_sigma4",

#           "expect_identical", "expect_lt", "expect_null", "expect_output",

"Axis", "axis.POSIXct", "box", "contour", "frame", "grid", "hist", "image",
"plot", "plot.new", "plot.window", "points", "polygon", "rect", "rug",
"segments", "smoothScatter", "strheight", "strwidth", "text", "title",
"gsw_pt_from_t", "gsw_rho", "gsw_sigma0", "gsw_sigma1", "gsw_sigma2",
"fivenum", "frequency", "integrate", "is.ts", "kernel", "lm", "median",
"na.exclude", "nls", "optim", "optimize", "predict", "printCoefmat",
"quantile", "rnorm", "runmed", "sd", "smooth", "smooth.spline", "spectrum",
"ts", "uniroot", "var", "weighted.mean", "window")
"flush.console", "packageVersion", "read.csv", "read.delim", "read.table",
"setTxtProgressBar", "str", "tail", "txtProgressBar", "unzip",
exportClasses(oce, adp, adv, amsr, bremen, cm, coastline, ctd, argo, ladp,
landsat, lisst, lobo, met, odf, sealevel, section, rsk, tidem, topo,

find.elem, is.in.grid, jet.colors, lagrangian.pdd, att.plot,