boa: boa

In galuardi/boaR: BOA front detection

Description

boa

Usage

boa(lon, lat, ingrid, nodata = NA, direction = F)

Arguments

lon	longitude (vector) of the satellite image
lat	latitude (vector) of the satellite image
ingrid	The satellite data (matrix). If using chlorophyll, transform using log(ingrid))
nodata	value representing 'no data'
direction	Logical. Should direction be calculated and returned

Details

Note: These grids are in raster format, as is used in raster.

Value

either a stand alone asc grid of front gradient data or a list of: grdir : ascii grid Gradient direction front : Gradient magnitude. In the case of chlorophyll, this is a ratio

References

Belkin, I. M. & O'Reilly, J. E. An algorithm for oceanic front detection in chlorophyll and SST satellite imagery. Journal of Marine Systems, 2009, 78, 319 - 326

Examples

# none

galuardi/boaR documentation built on May 16, 2019, 5:37 p.m.