Mass balance measurements are made on the same date each year in August and again in late September close to
the end of the ablation season.
Residual snow accumulation (final late snow balance: Mayo et al., 1972) at
the end of the ablation season is determined using probing and crevasse stratigraphy on the same date as ablation measurements are completed.
In Glacier National Park, North Cascades, Helm Glacier and Place Glacier frequent loss of the entire snowcover by
the end of the ablation season has become commonplace (WGMS, 2005 The result is in net ablation throughout the accumulation area causing thinning of the glacier in the accumulation zone.
Not exact matches
Ablation is measured by emplacing stakes in the glacier at the
end of the previous melt season or the beginning
of the melt season.
A glacier is divided into an
ablation zone where all accumulated snow is lost from the winter and an accumulation zone where snowpack is retained to the
end of the summer.