R/palr-package.R

In palr: Colour Palettes for Data

#' palr
#'
#' palr: colours for data
#'
#' @name palr
#' @importFrom grDevices col2rgb colorRampPalette rgb
#' @importFrom utils  head
"_PACKAGE"

#' Sea surface temperature (SST) and ocean color chlorophyll-a (CHLA).
#'
#' SST example raster data set, at 0.25 degree resolution for global coverage
#' in "longitude180/latitude".
#'
#' Small sample of 'VIIRS' daily chlorophyll-a 2026-06-15 from near Tasmania. 
#' 
#' Created using script in data-raw/ using `raadtools` package.
#' @references
#' Reynolds, et al.(2007) Daily High-resolution Blended Analyses. Available from
#' 'NOAA' search for 'OISST'.
#'
#' Climatology is based on 1971-2000 OI.v2 SST, Satellite data: Navy  NOAA19
#' METOP AVHRR, Ice data: #' NCEP ice Source: NOAA/National Climatic Data Center.
#'
#' @name oisst
#' @aliases chl
#' @docType data
#' @rdname oisst
#' @examples
#' dim(oisst)
#' class(oisst)
#' image(oisst, useRaster = TRUE)
#' pal <- chl_pal(palette = TRUE)
#' image(t(chl[nrow(chl):1, ]), col = pal$cols[-1], breaks = pal$breaks)
NULL