https://pabl1t0x.r-universe.devRecent package updates in pabl1t0xR-universehttps://github.com/pabl1t0x.pnghttps://pabl1t0x.r-universe.devSun, 07 Jun 2026 15:23:05 GMTpablofuchs_llama@hotmail.com (Pablo Fuchs)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.https://github.com/r-universe/pabl1t0x/actions/runs/27496465038Sun, 07 Jun 2026 15:23:05 GMTSatRbedo1.0.0successhttps://pabl1t0x.r-universe.devhttps://github.com/pabl1t0x/SatRbedoSatRbedo.RmdSatRbedo.htmlIntroduction to SatRbedo2025-11-25 14:21:312025-12-08 19:48:30albedo_retrieval_landsat.Rmdalbedo_retrieval_landsat.htmlRetrieving snow and ice albedo from Landsat data2025-11-27 14:40:492025-12-08 19:48:30