Kongsvegen and Kronebreen

Kongsvegen ("Kings Way") and Kronebreen ("Crown Glacier") share a common tidewater terminus at the head of Kongsfjorden, providing an inspiring view from Ny-Ålesund. They originate from separate icefields, the former flowing NW from a shared ice-divide with glaciers in Isfjorden, and the latter flowing SW and west from the icefield of Holtedahlfonna. Kronebreen currently dominates the terminal zone and is a totally crevassed fast-flowing glacier (measured velocities of 700 m/yr). In contrast Kongsvegen is a surge-type glacier in an almost stagnant state, having very few crevasses and a well developed supraglacial stream network. Kongsvegen last surged around 1948, when it extended several kilometres down the fjord, cut-off Kronebreen and reached Ossian Sarsfjellet. All photos from 14. July 2009 unless otherwise mentioned.

Kongsvegen and Kronebreen
Calving fronts of Kongsvegen, Kronebreen and Kongsbreen seen from the south; telephoto aerial view taken during a flight from Longyearbyen to Ny Ålesund; 13. July 2009 (JA).
Kongsvegen and Kronebreen
Aerial view of a group of ice-dammed lakes on a pass between Uvêrsbreen (lower left) and Kongsvegen (centre); 13. July 2009 (JA).
Kongsvegen and Kronebreen
Near-vertical aerial view on to the calving front. The reddish colour of the seawater is caused by a plume of iron-rich sediment delivered by a submarine stream outlet (JA).
Kongsvegen and Kronebreen
Ground view of the calving front of Kongsvegen on 14. July 2009; seagulls are attracted by nutrients in the glacial runoff and rich marine life (JA).
Kongsvegen and Kronebreen
Panoramic view of Kronebreen (centre) and Kongsvegen (far right), viewed from the end moraine produced by the latter during its 1948 surge (JA).
Kongsvegen and Kronebreen
Medium telephoto of the Kronebreen glacier front from the same viewpoint showing the heavily crevassed nature of this glacier (JA). Dronningfjella (1264 m) is the highest peak in the background (JA).
Kongsvegen and Kronebreen
Telephoto of the zone of convergence between heavily crevassed Kronebreen (left) and Kongsvegen (right), with medial moraines (JA).
Kongsvegen and Kronebreen
Outlet stream from Kongvegen cutting deeply into a newly formed ground-line fan which developed in the last decade (JA).
Kongsvegen and Kronebreen
Supraglacial drainage on Kongvegen is deeply incised into the glacier before plunging over a waterfall into the sea (JA).
Kongsvegen and Kronebreen
This vertical layering is foliation with debris, which forms as a result of shearing between two ice flow units (JA).
Kongsvegen and Kronebreen
A small calving event at the front of Kongsvegen causes a considerable splash and... (JA).
Kongsvegen and Kronebreen
...startles a group of seagulls which take to the air immediately (JA).
Kongsvegen and Kronebreen
The dark blue shallow cavern is fresh ice containing debris, and contrasts markedly with the foliated weathered ice surrounding it (JA).
Kongsvegen and Kronebreen
An ice-cored moraine ridge, comprising reddish sediment dervived from red Carboniferous sandstone and conglomerate. It is located in front of Kongsvegen and is subject to rapid marine erosion (JA).
Kongsvegen and Kronebreen
Meltwater pond with by ice-cored moraine, the reddish water reflecting high ferric iron content of the Carboniferous rocks surrounding it (JA).
Kongsvegen and Kronebreen
A calm day at Kongsvegen / Kongsbreen; the beach in the foreground shows signs of wave action after calving events. The hill is Collethogda, made up of horizontal Carboniferous strata, with reddish rocks at the base (JA).
Kongsvegen and Kronebreen
Looking back at the calving front of Kongsvegen and Kronebreen whilst returning to Ny-Ålesund after a day exploring the terminus of these two fine glaciers (JA).