CR
Cryospheric Sciences

Greenland

Looking for the Window during Fieldwork

September 15, 2023
Looking for the Window during Fieldwork
Qaanaaq fjord in Northern Greenland, 79°N [Credits: Katie Sipes].

Arctic fieldwork is a meticulous dance with the ever-fickle weather, where nature’s temperament can determine the course of scientific endeavors. Rain or fog can swiftly put a halt to even the most well-laid plans. This holds true for Greenland, where proximity to the ice cap doesn’t shield researchers from the capriciousness of the climate. In August 2023, the Deep Purple ERC Project ...[Read More]

We are back – with 4 Arctic fieldwork stories!

September 1, 2023
We are back – with 4 Arctic fieldwork stories!
Walking to a glacier in NE Greenland. Photo credit: Maria Scheel

You might have missed our weekly blog posts, but we are back! This week’s post highlights four field work campaigns our cryo community conducted. Join us on a journey to Greenland, Svalbard and Alaska to learn about methane emissions, glacier flows, tundra fires and ice microbes. Chasing methane in Greenland The subglacial environment of the Greenland Ice Sheet is a relatively new discovered ...[Read More]

Did You Know That It Ain’t Easy Being Greenland?

June 16, 2023
Did You Know That It Ain’t Easy Being Greenland?
The shape of Greenland changes depending on the map projection. [Credit: Kate Berg]

As a reader of the Cryosphere blog, you may have spent a lot of time looking at the Greenland Ice Sheet, but do you really know what Greenland looks like? This “It Ain’t Easy Being Greenland” map is something I made for fun during the #30DayMapChallenge (an international project to complete one map a day during the month of November) and highlights how different the island country appears dependin ...[Read More]

For Dummies: Radar altimetry for measuring ice sheet elevation changes

March 3, 2023
For Dummies: Radar altimetry for measuring ice sheet elevation changes
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 – The gaze of the ice cap

January 27, 2023
Image of the week – The gaze of the ice cap
Slowly approaching an ice cap in northern Greenland. Credits: Giovanni Baccolo.

We are getting used to perceiving glaciers more and more distant and disconnected from our mountains. With each passing year, it is more difficult to observe them, reach them or climb them. They are becoming an exotic element of the Alpine imagination. When our gaze rests on a mountain glacier, with its crevasses and large moraines, we are filled with the fascination of someone observing a new nat ...[Read More]

Camp Century re-visited: sediment from the bottom of a Cold War ice core reveals Greenland’s warm past

January 28, 2022
Camp Century re-visited: sediment from the bottom of a Cold War ice core reveals Greenland’s warm past
Historic photograph of the ice core drill rig inside a covered snow trench at Camp Century, northwestern Greenland in 1964. Source: Langway, 2008 [Credit: USACE/CRREL].

A Cold War nuclear-powered military base inside the Greenland Ice Sheet sounds like science fiction, but the science that came out of this U.S. army installation was anything but fiction. In last week’s EGU CR blog post, Paul Bierman and Amanda Schmidt discussed the advances made by the U.S. military in operating across the Greenland Ice Sheet that culminated in the establishment of Camp Century i ...[Read More]

Living IN the Greenland ice sheet: the story of Sites I and II, Camp Century’s older, smaller siblings

January 21, 2022
Living IN the Greenland ice sheet: the story of Sites I and II, Camp Century’s older, smaller siblings
Site I in 1953 or early 1954, just after installation and before it was buried by accumulating snow. These three main tubes each have a diameter of 5.4 meters. [Credits: U.S. Air Force]

Greenland, cold as it is, was appropriately front and center in the Cold War. Strategically placed between Europe and North America, the United States sought to maintain and enhance its position on the island so that American missiles and bombers were in striking range of many Soviet targets. Soviet bombers and missiles coming toward North America would streak over Greenland making early warning c ...[Read More]

CryoAdventures – Three months in Nuuk, the world’s northernmost capital!

December 10, 2021
Dark sky with greenish Aurora Borealis.
Northern lights over Nuuk [credit: Jenny Arthur]

I have just returned from nearly three months in Nuuk, the capital of Greenland, where I was doing my PhD placement at Asiaq Greenland Survey. Read on to find out what science I got up to… everything from mapping mountain glacier snowline change to avalanches! How do you map glacier snowline evolution? During my PhD research placement, I was working at Asiaq Greenland Survey in their Hydrolo ...[Read More]

Re-discovering the British North Greenland Expedition 1952-54

August 13, 2021
Re-discovering the British North Greenland Expedition 1952-54
Figure 1. Map of the major field localities (red dots), including the BNGE bases at Britannia Sø and North Ice, and the approximate traverse route (red lines) of the British North Greenland Expedition (adapted from Hamilton 1956). North East Greenland Ice Stream (NEGIS) is indicated. Base map is a multidirectional hillshade of the 100 m Arctic DEM (25x vertical exaggeration) overlain by the ITS LIVE 120 m ice velocity dataset. Both basemap datasets were accessed via https://qgreenland.org/ [credits: Neil Ross]

How did we (nearly) all forget about, or simply overlook, a large-scale two-year long mid-20th Century scientific expedition to the northern Greenland Ice Sheet? Particularly an expedition that kick-started some significant glaciological and geophysical careers, developed large-scale polar logistical capabilities, traversed the ice sheet, acquired some novel and critical data, and asked some big r ...[Read More]

Image of the Week – Icebergs increase heat flux to glacier

January 15, 2021
Image of the Week – Icebergs increase heat flux to glacier
Iceberg in Sermilik Fjord. Figure credit: Donald Slater.

Icebergs are ubiquitous in Greenland’s fjords, melting and releasing freshwater as they float towards the open ocean. The amount of freshwater released from these icebergs can be vast – the equivalent of around 50,000 Olympic swimming pools per day in some fjords. New research reveals that this freshwater causes fjord currents to speed-up, which can actually increase the amount of heat delivered t ...[Read More]