chla: Estimate chlorophyll-a from NASA ocean colour.

In mdsumner/roc: Tools for Ocean Colour

Description

Estimate chlorophyll-a from Remote Sensing Reflectance wavelengths. Use SeaWiFS or MODISA with original or Johnson algorithm for the Southern Ocean.

Usage

chla(x, sensor, algo = c("oceancolor", "johnson"), quiet = TRUE, ...)

Arguments

x	list object with Remote Sensing Reflectance wavelengths (see Details)
sensor	which satellite sensor
algo	algorithm to use, oceancolor or Johnson et al. (2013)
quiet	logical to emit warnings or not
...	not used

Examples

#f <- "S1998001.L3b_DAY_RRS.main"
#x <- readL3(f)
#asub <- x$bin_num < initlist()$totbins / 2
#ll <- bin2lonlat(x$bin_num[asub])
#sw <- swchl(x)[asub]
#js <- swchl(x, johnson = TRUE)[asub]
#par(mfrow = c(2,1))
#plot(ll, col = palr::chlPal(sw), pch = ".")
#plot(ll, col = palr::chlPal(js), pch = ".")

## setup a polar raster

mdsumner/roc documentation built on May 22, 2019, 5:05 p.m.