Ablation of seasonal snowcover continues at Kibo's summit, while hints of the forthcoming short rain season are becoming evident. The Sentinel-2 image above shows both continuing ablation since the end of August (see previous posts), and a dusting of new snow on southeastern slopes. This is also a nice illustration of how localized snowfall can be on the mountain.
Light accumulating snowfall is common at this time of year, as is its
subsequent ablation within a few days. These opposing processes are
especially critical for the glaciers as the dry season concludes,
because albedo reaches an annual minimum while temperature, humidity,
and solar radiation are all increasing.
In today's image (not shown), partially obscured by clouds, the dusting
of snow seen above has completely ablated, and snowcover within the
caldera is patchier yet.
While it appears that areas of snow will endure the dry season this
year, failure of the short rains - or even a delayed onset - might yet
ablate much of the lingering summit snow.