L’Antarctique sort à peine de sa torpeur hivernale que déjà deux évènements majeurs viennent de se produire sous l’œil de Sentinel-1. Le 12 juillet dernier, une crevasse géante à fendu la barrière de glace Larsen C [1], mais il a fallu attendre que la banquise desserre son étau en septembre pour que l’iceberg A68 commence […]
The organizers of the 2017 International Glaciology Society meeting in Boulder tweeted this animation of the Vavilov Glacier (October Revolution Island, Russian Arctic):
Zermatt is in the corner of the Sentinel-2 tile 32TLS, which is produced at level 2A by Theia. Hence I could generate the snow maps at 20 m resolution for this area (105 dates from December 2015 to October 2017). Browse map The glacier outlines are from the Randolph Glacier Inventory 5.0. Snow maps […]
The rift of Pine Island glacier was captured by Sentinel-2A several times since Sentinel-2A is watching Antarctica. However I was not sure if the crack was growing by looking at the images only.
The rift of Pine Island Glacier’s floating tongue is a cause of concern among glaciologists because it suggests that this part of the ice shelf is not stable and may collapse in the future. As explained in this EOS article [1] Rifts usually form at the sides of an ice shelf where the ice is […]
Sentinel-2A was launched on 23-July-2015 but the routine operations started in July 2016 after the ramp-up phase [1]. Now with the onset of the austral summer, the first Sentinel-2A images of Antarctica are getting available (except for Dome C, which is a calibration site).
A Pléiades stereo pair has been acquired on 2016-Oct-01 just a few days after the second glacier collapse in the Aru mountains. The panchromatic band has 0.5 m resolution, which allowed us to generate a post-event digital elevation model of the area. From this digital elevation model and the Pléiades 2 m multispectral imagery, Etienne […]
« The most usual weather in these latitudes is a fresh wind between north west and south west with a cloudy overcast sky » – Phillip Parker King, Sailing Directions for the Coasts of Eastern and Western Patagonia (1832). Patagonia is a beautiful place to visit but campers know that the weather is extremely variable and the […]
The giant ice avalanche that occurred in Tibet on 17 July 2016 and killed 9 people [1] urged scientists to scrutinize every available data to understand what caused such a glacier collapse. In doing so, they witnessed in near real time the ongoing collapse of a second glacier.