oce (version 1.8-3)

rskPatm: Estimate Atmospheric Pressure in an rsk Object

Description

Estimate atmospheric pressure in an rsk object. Pressures must be in decibars for this to work. First, a subset of pressures is created, in which the range is sap-dp to sap+dp. Here, sap=10.1325 dbar is standard sealevel atmospheric pressure. Within this window, three measures of central tendency are calculated: the median, the mean, and a weighted mean that has weight given by \(exp(-2*((p-sap)/dp)^2)\).

Usage

rskPatm(x, dp = 0.5)

Value

A list of four estimates: sap, the median, the mean, and the weighted mean.

Arguments

x

an rsk object.

dp

Half-width of pressure window to be examined (in decibars).

Author

Dan Kelley

See Also

The documentation for rsk explains the structure of rsk objects, and also outlines the other functions dealing with them.

Other things related to rsk data: [[,rsk-method, [[<-,rsk-method, as.rsk(), ctdFindProfilesRBR(), plot,rsk-method, read.rsk(), rsk, rsk-class, rskToc(), subset,rsk-method, summary,rsk-method

Examples

library(oce)
data(rsk)
print(rskPatm(rsk))