Skip to content

Error in calcAnchors(image = image.TOAr, Ts = Ts, LAI = LAI, plots = T, : Not enough pixels with the conditions for anchor pixels. I found 0 cold pixels and 0 hot pixels. #54

@Omar87senjar

Description

@Omar87senjar

I have challenges with the Energy Balance calculation of the water package, following the example code found on: https://cran.rproject.org/web/packages/water/vignettes/Landsat8.html. Using my own data, I read my original landsat image and the surface reflectance image with my area of interests (aoi). But, I get the following error when I use this code.

Energy.Balance <- METRIC.EB(image.DN = image_band, image.SR = image_SR_band,
plain = TRUE, aoi = aoi, n = 5,
WeatherStation = WeatherStation, ETp.coef = 1.2, sat = "L8",
alb.coeff = "Olmedo", LST.method = "SW",
LAI.method = "metric2010", thermalband=image.DN$thermal.low,
Z.om.ws = 0.03, anchors.method = "flexible", MTL = MTLfile)

Error in calcAnchors(image = image.TOAr, Ts = Ts, LAI = LAI, plots = T, :
Not enough pixels with the conditions for anchor pixels. I
found 0 cold pixels and 0 hot pixels.
In addition: Warning messages:
1: PROJ support is provided by the sf and terra packages among others
2: In calcAnchors(image = image.TOAr, Ts = Ts, LAI = LAI, plots = T, :
anchor method names has changed. Old names (CITRA-MCBx) are
deprecated. Options now include 'best', 'random' and 'flexible'
3: In max(Ts[albedo >= 0.13 & albedo <= 0.15 & NDVI >= 0.1 & NDVI <= :
no non-missing arguments to max; returning -Inf

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions