Cryospheric Sciences

A journey to the Edge of the Ice: Discovering How the Ocean Meets the Polar Sea Ice

Weixin Zhu and Lu Zhou December 12, 2023

Figure 1: Sentinel-1 image (EW swath mode) of the Marginal Ice Zone case in the Barents Sea on 2015-Feb-17. The CryoSat-2(CS2) track (black) and the retrieved alongtrack Marginal Ice Zone are shown (red). Wave-like structure is observed by Sentinel-1 (3-hr later than CS2). [Adapted from Zhu et al., 2023].

Let’s continue the journey of discovering cool facts about sea ice which started with breaking the ice. This time, we’re diving into a fascinating part of the Arctic and Antarctic: the Marginal Ice Zone (MIZ). Imagine a place where the vast, frozen world of sea ice meets the moving waters of the ocean underneath. This is the MIZ, a unique area where air, water, and ice mix and mingle. ItR ...[Read More]

For Dummies: Radar altimetry for measuring ice sheet elevation changes

Inès Otosaka March 3, 2023

Greenland and Antarctica surface elevation changes from CryoSat-2. Credit: ESA, Inès Otosaka.

Does measuring the surface of the ice sheets provide more than superficial knowledge of their current status? Read further to find out why the answer is definitely yes! Measuring surface elevation changes actually tells us where Greenland and Antarctica are thinning or thickening and how much they contribute to sea level rise. Scientists have been doing this for the past three decades, so keep on ...[Read More]

Image of the Week – Icelandic glaciers monitored from space!

Luca Foresta February 17, 2017

Figure 1: Exceptionally cloud free view of Iceland taken from ESA Envisat on 21, July 2010. Rates of surface elevation change between 2010-2015 derived from ESA CryoSat-2 swath-processed elevations are overlaid over the six largest ice caps. The time series shows thinning below 1200 m elevation over Vatnajökull, the largest ice cap in Iceland and Europe (by volume) -see Foresta et al. (2016) [Credit: L. Foresta and Dr. N. Gourmelen, University of Edinburgh, School of GeoSciences]

Located in the North Atlantic Ocean, just south of the polar circle, Iceland is a highly fascinating land. Covered by some of the largest glaciers in Europe and hosting active volcanoes, geothermal sites and subglacial lakes, it is extremely dynamic in nature and ever changing. With this Image of the Week we will tell you a bit about the changing ice caps of Iceland and how we can monitor them fro ...[Read More]

European Space Agency Living Planet Symposium 2016

Stephen Chuter May 26, 2016

Background: Prague Castle as viewed from the Charles Bridge (Credit: Stephen Chuter)

Living Planet Symposium Between the 9th and 13th May, Prague played host to the European Space Agency’s (ESA) fourth Living Planet Symposium. The event, the largest in its history with over 3300 attendees, brought together the earth observation community across multiple disciplines to discuss significant scientific results and the future developments of earth observation missions. Earth Observatio ...[Read More]