automatically search end members within the satellite scene (extreme wet and dry conditions).
calcAnchors(image, Ts, LAI, albedo, Z.om, n = 1, aoi,
anchors.method = "flexible", WeatherStation, plots = TRUE,
deltaTemp = 5, minDist = 500, WSbuffer = 30000, verbose = FALSE)
top-of-atmosphere landsat reflectance image
land surface temperature in K. See surfaceTemperature()
rasterLayer with Leaf Area Index. See LAI()
broandband surface albedo. See albedo()
momentum roughness lenght. See momentumRoughnessLength()
number of pair of anchors pixels to calculate
area of interest to limit the search. If waterOptions(autoAOI) == TRUE, It'll use aoi object from .GlobalEnv
method for the selection of anchor pixels. "random" for random selection of hot and cold candidates according to CITRA-MCB method, or "best" for selecting the best candidates. And "flexible" for method with soft limits to the anchor pixel conditions.
Optional. WeatherStation data at the satellite overpass. Should be a waterWeatherStation object calculated using read.WSdata and MTL file.
Logical. If TRUE will plot position of anchors points selected. Points in red are selected hot pixels, blue are the cold ones and the black represents the position of the Weather Station
deltaTemp for method "CITRA-MCBs" or "CITRA-MCBr"
minimun distance allowed for two anchor pixels of the same type (in meters).
maximun distante to the Weather Station (in meters).
Logical. If TRUE will print aditional data to console
CITRA y MCB (com pers)
Other sensible heat flux functions: calcH
,
momentumRoughnessLength