Package: SatRbedo Title: Tools for Retrieving Snow and Ice Albedo from Optical Satellite Imagery Version: 1.0.0 Authors@R: c( person( "Pablo", "Fuchs", email = "pablofuchs_llama@hotmail.com", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-6042-5620") ), person( "Ruzica", "Dadic", role = c("ctb", "ths"), comment = c(ORCID = "0000-0003-1303-1896") ), person( "Shelley", "MacDonell", role = c("ctb", "ths"), comment = c(ORCID = "0000-0001-9641-4547") ), person( "Heather", "Purdie", role = c("ctb", "ths"), comment = c(ORCID = "0000-0002-2723-6908") ), person( "Brian", "Anderson", role = c("ctb", "ths") ), person( "Marwan", "Katurji", role = c("ctb", "ths"), comment = c(ORCID = "0000-0002-3368-1469") ), person( "Javier", "Corripio", role = "cph", comment = "Author of the vectorial algebra algorithms used to detect topographic shadows" ) ) Description: The package consists of a set of tools for retrieving snow and ice albedo from optical satellite imagery (e.g., Landsat and Sentinel-2). The tools require the following gridded datasets: (1) atmospherically-corrected surface reflectance, (2) a digital elevation model (DEM), and (3) satellite and solar azimuth and zenith angles. The package includes tools for: image pre-processing (crop grids to a specified extent, project grids with different coordinate systems, and convert data from integer to floating point); convert nadir satellite observations to off-nadir values using view-angle corrections; detect and mask topographic shadows; automatic discrimination of snow and ice surfaces; anisotropic correction of reflected radiation of glacier snow and ice using empirical parameterizations of the bidirectional reflectance distribution function (BRDF); topographic correction; and narrow-to-broadband albedo conversion. License: GPL (>= 3) Depends: R (>= 3.5) Imports: cli, EBImage, graphics, Rdpack, stats, terra RdMacros: Rdpack Encoding: UTF-8 Additional_repositories: https://bioconductor.org/packages/release/bioc Remotes: bioc::EBImage Roxygen: list(markdown = TRUE) Suggests: knitr, rmarkdown, testthat (>= 3.0.0), vdiffr Config/testthat/edition: 3 URL: https://github.com/pabl1t0x/SatRbedo, https://pabl1t0x.github.io/SatRbedo/ BugReports: https://github.com/pabl1t0x/SatRbedo/issues VignetteBuilder: knitr Config/roxygen2/version: 8.0.0 Config/pak/sysreqs: cmake libfftw3-dev libgdal-dev gdal-bin libgeos-dev make libjpeg-dev libpng-dev libtiff-dev libuv1-dev libproj-dev libsqlite3-dev Repository: https://pabl1t0x.r-universe.dev Date/Publication: 2026-06-07 15:23:05 UTC RemoteUrl: https://github.com/pabl1t0x/SatRbedo RemoteRef: HEAD RemoteSha: b92813fb8d1f38d19f75efead0784b99b74c76a0 NeedsCompilation: yes Packaged: 2026-06-14 10:53:09 UTC; root Author: Pablo Fuchs [aut, cre] (ORCID: ), Ruzica Dadic [ctb, ths] (ORCID: ), Shelley MacDonell [ctb, ths] (ORCID: ), Heather Purdie [ctb, ths] (ORCID: ), Brian Anderson [ctb, ths], Marwan Katurji [ctb, ths] (ORCID: ), Javier Corripio [cph] (Author of the vectorial algebra algorithms used to detect topographic shadows) Maintainer: Pablo Fuchs