readchla: Read Chlorophyll-a, NASA algorithm

In AustralianAntarcticDivision/raadtools: Tools for Synoptic Environmental Spatial Data

Read Chlorophyll-a, NASA algorithm

Description

Ocean colour Chlorophyll-a data, provide an input of daily dates and these will be averaged into one layer.

Usage

readCHL_month(
  date,
  xylim = NULL,
  returnfiles = FALSE,
  ...,
  inputfiles = NULL,
  latest = TRUE
)

readchla(
  date,
  product = c("any", "MODISA", "SeaWiFS", "VIIRS"),
  xylim = NULL,
  algorithm = c("nasa"),
  latest = TRUE,
  grid = NULL,
  ...,
  returnfiles = FALSE,
  inputfiles = NULL
)

Arguments

date	date or dates of data to read, see Details
xylim	spatial extents to crop from source data, can be anything accepted by extent, ignored if grid is provided
returnfiles	ignore options and just return the file names and dates
...	currently ignored Note that reaCHL_month reads the NASA algorithm L3m products. Note that this function cannot be used with 'extract()', for that use read_chla_daily().
inputfiles	input the files data base to speed up initialization
latest	if TRUE (and date not supplied) return the latest time available, otherwise the earliest
product	choice of product, see Details
algorithm	nasa only
grid	template raster object for output

Value

raster object

See Also

readCHL_month

chlafiles for details on the repository of data files, raster for the return value

Examples

readCHL_month()
## Not run: 
d <- readchla(c("2003-01-01", c("2003-06-01")),
         xylim = extent(100, 150, -70, -30))

## End(Not run)

AustralianAntarcticDivision/raadtools documentation built on Nov. 14, 2024, 4:27 p.m.