Taliks, cryopegs, and permafrost dynamics related to channel migration, Colville River Delta, Alaska

2020 ◽  
Vol 31 (2) ◽  
pp. 239-254
Author(s):  
Eva Stephani ◽  
Jeremiah Drage ◽  
Duane Miller ◽  
Benjamin M. Jones ◽  
Mikhail Kanevskiy
Keyword(s):  
River Delta ◽  
Channel Migration ◽  
Colville River

scholarly journals Tapped lakes as sediment traps in an Arctic delta

2015 ◽  
Vol 367 ◽  
pp. 407-412 ◽  
Author(s):  
J. Walker ◽  
M. McGraw
Keyword(s):  
Sediment Traps ◽  
Wave Action ◽  
River Delta ◽  
Channel Migration ◽  
Permafrost Thaw ◽  
Scour Hole ◽  
Colville River ◽  
Ice Wedge ◽  
Northern Alaska ◽  
Thaw Lakes

Abstract. Lakes within the Colville River delta in northern Alaska, USA, vary in size from small ponds created by ice-wedge growth to thaw lakes that are as much as three kilometres long and ten metres deep. As the river migrates, lake edges are breached and the lakes are drained. Such lake tapping is aided by permafrost thaw and ice wedge melt and, in the case of the larger lakes, by wave action within them. Once a lake is tapped, it drains rapidly creating a deep scour hole at its entrance and from then on it is subject to the varying stages and discharge of the river. During flooding, when the river is transporting its largest amount of sediment, the tapped lakes become settling basins and rapidly fill. The Colville River delta has lakes in all stages from freshly breached to those that are now being destroyed by channel migration.

Vocalization activity of breeding shorebirds: documentation of its seasonal decline and applications for breeding bird surveys

2003 ◽  
Vol 81 (10) ◽  
pp. 1702-1708 ◽  
Author(s):  
Silke Nebel ◽  
Brian J McCaffery
Keyword(s):  
River Delta ◽  
Weather Variables ◽  
Breeding Bird ◽  
Site Specific ◽  
Colville River ◽  
Seasonal Decline

We documented vocalization activity of breeding shorebirds at two sites in northern and western Alaska, on the Colville River Delta and on the Yukon – Kuskokwim Delta. At both sites, number of calling individuals decreased throughout the season. Variation in vocalization activity was significantly higher at the Colville River Delta towards the end of the season, while weather variables affected vocalization activity only on the Yukon – Kuskokwim Delta. Our results highlight the importance of timing, weather, and site-specific attributes on number of birds detected. We discuss our findings in the context of different methods to monitor breeding shorebirds.

Hydrologic and geomorphic processes in the Colville River delta, Alaska

Geomorphology ◽  
2003 ◽  
Vol 56 (3-4) ◽  
pp. 291-303 ◽  
Author(s):  
H.Jesse Walker ◽  
Paul F. Hudson
Keyword(s):  
River Delta ◽  
Colville River ◽  
Geomorphic Processes

Erosion Control and Restoration of a Sand Dune on the Colville River Delta, Northern Alaska

2007 ◽  
Vol 25 (4) ◽  
pp. 238-246 ◽  
Author(s):  
T. C. Cater ◽  
M. T. Jorgenson ◽  
S. C. Bishop ◽  
C. L. Rea
Keyword(s):  
Sand Dune ◽  
Erosion Control ◽  
River Delta ◽  
Colville River ◽  
Northern Alaska

Sources of organic matter in sediments of the Colville River delta, Alaska: A multi-proxy approach

2015 ◽  
Vol 87 ◽  
pp. 96-106 ◽  
Author(s):  
Xiaowen Zhang ◽  
Thomas S. Bianchi ◽  
Mead A. Allison
Keyword(s):  
Organic Matter ◽  
River Delta ◽  
Colville River

scholarly journals Sources of terrigenous inputs to surface sediments of the Colville River Delta and Simpson's Lagoon, Beaufort Sea, Alaska

2013 ◽  
Vol 118 (2) ◽  
pp. 808-824 ◽  
Author(s):  
Kathryn M. Schreiner ◽  
Thomas S. Bianchi ◽  
Timothy I. Eglinton ◽  
Mead A. Allison ◽  
Andrea J. M. Hanna
Keyword(s):  
Surface Sediments ◽  
Beaufort Sea ◽  
River Delta ◽  
Colville River
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