Shortwave surface albedo of glaciers in the central Chilean Andes

Data used to analyse glacier surface albedo change in the central Chilean Andes for the manuscript:

Glacier albedo reduction and drought effects in the extratropical Andes, 1986-2020

Thomas E. Shaw1, Genesis Ulloa2, David Farías-Barahona3, Rodrigo Fernandez2, Jose Lattus2, James McPhee1,4

1 Advanced Mining Technology Center, Universidad de Chile, Santiago, Chile
2 Department of Geology, Universidad de Chile, Santiago, Chile
3 Institute für Geographie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
4 Department of Civil Engineering, Universidad de Chile, Santiago, Chile

Corresponding author: Thomas E. Shaw (thomas.shaw@amtc.uchile.cl)
Keywords: Albedo, Andes, Glacier, Drought, Remote sensing, Climate

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Sub-folders:
    [Albedo]:
    'Albedo_ChileanGlaciers_DATA.mat' = matlab file that contains a structure of all information for analyses. 
        'DATA' structure contains: 
            NAME = Glacier name
            ALBEDO = 3D albedo matrices for each named glacier
            DEM = ASTER DEM of same resolution + size
            DEMtif = as above, but within a georeferenced GRIDobj frame read by TopoToolbox
            CLASS = classification as 0 (no data), 1 (ice) or 2 (snow)
            OTSUindex = The histogram separation value per year (per glacier) based upon Otsu inter-class variance
            SHADOW = Shadowed pixels based upon solar geometry
            SOLAR_AZI = Solar Azimuth per year taken from Landsat metadata
            SOLAR_ELE = Solar Elevation per year taken from Landsat metadata
            NIR = The Near-Infrared band of Landsat images for the Osu classification
            SLOPE = The calculated slope angle based upon the DEM (GRIDobj format)

        'SHAPE' is an 18*1 structure of the imported shapefiles in matlab format. Can be plotted using 'mapshow'

    [Shapefiles]:
    'CentralChileGlaciers.shp' = Shapefile of glacier boundaries delineated based upon April 2020 3 m PlanetScope imagery.

    [Climate]:
    'Ta_Precip_HY.mat' = Mean Monthly Air temperature (°C) and monthly total precipitation (mm) at long term DGA weather stations for each Hydrological year (April-March)
        'TAmonth_HY' = A matrix of 35 x 12 mean month air temperatures (°C) where rows (x35) = the hydrological year starting 1985-1986 and columns (x12) = the months of the hydrological year so that the first column is April and the final column is March of the following year
        'PPmonth_HY' = As above but a 3D matrix of 35 x 12 x 3 for monthly sums of precipitation (mm). The rows and columns are defined above and the third dimension are the stations Riecillos (32.92°S, 70.35°W ,1290 m a.s.l.), Embalse Yeso (33.67°S, 70.08°W, 2475 m a.s.l.) and Rengo (34.19°S, 70.75°W, 515 m a.s.l.), respectively.