Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Nina Kirchner"'
Autor:
Mingzhen Zhang, Matti Leppäranta, Atte Korhola, Nina Kirchner, Annika Granebeck, Frederik Schenk, Kaarina Weckström, Maija Heikkilä, Jan Weckström
Publikováno v:
Polar Research, Vol 43, Pp 1-15 (2024)
The Arctic region is covered with numerous small lakes whose ecosystems are vulnerable to current climate warming and resultant changes in water temperature, ice-cover duration and lake levels. Data on thermal features of these lakes are sparse, whic
Externí odkaz:
https://doaj.org/article/8776de9753724bd18120bbe066297258
Autor:
Nina Kirchner, Jan Weckström, Joachim Jansen, Frederik Schenk, Jamie Barnett, Annika Granebeck, Matti Leppäranta, Atte Korhola
Publikováno v:
Arctic, Antarctic, and Alpine Research, Vol 56, Iss 1 (2024)
ABSTRACTIn the rapidly warming circumpolar Arctic, recent research of lakes has focused on their climatology and ecology but is challenged by sparsity of wintertime data. At the c. 48-m-deep and c. 0.5-km2 large proglacial Darfáljávri (Lake Tarfala
Externí odkaz:
https://doaj.org/article/83e964dd1ddb46ae9f1ce1ac708579cc
Publikováno v:
Journal of Glaciology, Vol 69, Pp 433-444 (2023)
Mass loss at the Greenland Ice Sheet is influenced by atmospheric processes controlling its surface mass balance, and by submarine melt and calving where glaciers terminate in fjords. There, an ice mélange – a composite matrix of calved ice bergs
Externí odkaz:
https://doaj.org/article/bb2130b5821f4a389ccdfe4a3965a011
Autor:
Riko Noormets, Nina Kirchner
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Externí odkaz:
https://doaj.org/article/9ed5d49fd8ce4cdeb835e4cfd884c0a3
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Along the Greenland Ice Sheet margin, supraglacial lakes store and redistribute ice sheet surface run off, and comprise an important potential hydrological link between the ice surface and the base, with ramifications for subglacial drainage systems
Externí odkaz:
https://doaj.org/article/82b79779e71f49ba8384e18e6645d08b
Autor:
Nina Kirchner, Jakob Kuttenkeuler, Gunhild Rosqvist, Marnie Hancke, Annika Granebeck, Jan Weckström, Kaarina Weckström, Frederik Schenk, Atte Korhola, Pia Eriksson
Publikováno v:
Arctic, Antarctic, and Alpine Research, Vol 53, Iss 1, Pp 69-79 (2021)
Arctic lakes are exposed to warming during increasingly longer ice-free periods and, if located in glaciated areas, to increased inflow of meltwater and sediments. However, direct monitoring of how such lakes respond to changing environmental conditi
Externí odkaz:
https://doaj.org/article/d040d7f44c3a4818af52f206f0783b12
Publikováno v:
MethodsX, Vol 9, Iss , Pp 101668- (2022)
Three-dimensional numerical simulation of circulation in fjords hosting marine-terminating ice shelves is challenging because of the complexity of processes involved in such environments. This often requires a comprehensive model setup. The following
Externí odkaz:
https://doaj.org/article/8f3b0d2001fc4d2dbbe168bdea4b2818
Autor:
Penelope How, Kristin M. Schild, Douglas I. Benn, Riko Noormets, Nina Kirchner, Adrian Luckman, Dorothée Vallot, Nicholas R. J. Hulton, Chris Borstad
Publikováno v:
Annals of Glaciology, Vol 60, Pp 20-31 (2019)
We present a highly detailed study of calving dynamics at Tunabreen, a tidewater glacier in Svalbard. A time-lapse camera was trained on the terminus and programmed to capture images every 3 seconds over a 28-hour period in August 2015, producing a h
Externí odkaz:
https://doaj.org/article/406b8942a5c84738ab0a0d6cc11a2498
Autor:
Michele Petrini, Florence Colleoni, Nina Kirchner, Anna L. C. Hughes, Angelo Camerlenghi, Michele Rebesco, Renata G. Lucchi, Emanuele Forte, Renato R. Colucci, Riko Noormets
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
Abstract The Barents Sea Ice Sheet was a marine-based ice sheet, i.e., it rested on the Barents Sea floor during the Last Glacial Maximum (21 ky BP). The Bjørnøyrenna Ice Stream was the largest ice stream draining the Barents Sea Ice Sheet and is r
Externí odkaz:
https://doaj.org/article/0142988d9e2143e9a6179ea6734ac79f
Autor:
Martin Jakobsson, Johan Nilsson, Leif Anderson, Jan Backman, Göran Björk, Thomas M. Cronin, Nina Kirchner, Andrey Koshurnikov, Larry Mayer, Riko Noormets, Matthew O’Regan, Christian Stranne, Roman Ananiev, Natalia Barrientos Macho, Denis Cherniykh, Helen Coxall, Björn Eriksson, Tom Flodén, Laura Gemery, Örjan Gustafsson, Kevin Jerram, Carina Johansson, Alexey Khortov, Rezwan Mohammad, Igor Semiletov
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-10 (2016)
The development of pan-Arctic Ocean ice shelves during peak glacials was proposed in the 1970s, an idea that has been disputed due to lack of evidence. Here, the authors present geophysical mapping data supporting the presence of such an ice shelf du
Externí odkaz:
https://doaj.org/article/96c8576b2a5446249091907af01f02b4