Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Svein Kristiansen"'
Autor:
Agneta Fransson, Melissa Chierici, Daiki Nomura, Mats A. Granskog, Svein Kristiansen, Tõnu Martma, Gernot Nehrke
Publikováno v:
Annals of Glaciology, Vol 61, Pp 320-340 (2020)
The effect of freshwater sources on wintertime sea-ice CO2 processes was studied from the glacier front to the outer Tempelfjorden, Svalbard, in sea ice, glacier ice, brine and snow. March–April 2012 was mild, and the fjord was mainly covered with
Externí odkaz:
https://doaj.org/article/f550016e779f4cfebfbbf3d0b1ca6c3d
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Arctic summer sea ice extent is decreasing and thinning, forming melt ponds that cover more than 50% of the sea ice area during the peak of the melting season. Despite of this, ice algal communities in melt ponds are understudied and so are their con
Externí odkaz:
https://doaj.org/article/04eb595cc2f24975bb82148a48d18a99
Autor:
Ylva Ericson, Melissa Chierici, Eva Falck, Agneta Fransson, Elizabeth Jones, Svein Kristiansen
Publikováno v:
Polar Research, Vol 38, Iss 0, Pp 1-17 (2019)
Time series of the marine CO2 system and related parameters at the IsA Station, by Adventfjorden, Svalbard, were investigated between March 2015 and November 2017. The physical and biogeochemical processes that govern changes in total alkalinity (TA)
Externí odkaz:
https://doaj.org/article/44af979d2bfa4547af852c220b9e7b8a
Autor:
Anna Maria Dąbrowska, Józef Maria Wiktor, Józef Mikołaj Wiktor, Svein Kristiansen, Anna Vader, Tove Gabrielsen
Publikováno v:
Water, Vol 13, Iss 14, p 1990 (2021)
As a contribution to understanding the ecological framework of protistan seasonal succession patterns, we present the weekly-to-monthly (January–October) light microscopy-based study of nano- and microplanktonic protist communities of Adventfjorden
Externí odkaz:
https://doaj.org/article/9177c7b719f848b39b4b3cf92f1738ba
Autor:
Laura Halbach, Mikko Vihtakari, Pedro Duarte, Alistair Everett, Mats A. Granskog, Haakon Hop, Hanna M. Kauko, Svein Kristiansen, Per I. Myhre, Alexey K. Pavlov, Ankit Pramanik, Agnieszka Tatarek, Tomas Torsvik, Józef M. Wiktor, Anette Wold, Angela Wulff, Harald Steen, Philipp Assmy
Publikováno v:
Frontiers in Marine Science, Vol 6 (2019)
Meltwater discharge from tidewater glaciers impacts the adjacent marine environment. Due to the global warming, tidewater glaciers are retreating and will eventually terminate on land. Yet, the mechanisms through which meltwater runoff and subglacial
Externí odkaz:
https://doaj.org/article/fcd7b32fefde4aa181150440e524367e
Autor:
Haakon Hop, Philipp Assmy, Anette Wold, Arild Sundfjord, Malin Daase, Pedro Duarte, Slawomir Kwasniewski, Marta Gluchowska, Józef M. Wiktor, Agnieszka Tatarek, Józef Wiktor, Svein Kristiansen, Agneta Fransson, Melissa Chierici, Mikko Vihtakari
Publikováno v:
Frontiers in Marine Science, Vol 6 (2019)
The northern coast of Svalbard contains high-arctic fjords, such as Rijpfjorden (80°N 22°30′E). This area has experienced higher sea and air temperatures and less sea ice in recent years, and models predict increasing temperatures in this region.
Externí odkaz:
https://doaj.org/article/f4c9f6ffc0864bc9a7c7e6915fa4f56f
Autor:
Marina Sanz-Martín, Melissa Chierici, Elena Mesa, Paloma Carrillo-de-Albornoz, Antonio Delgado-Huertas, Susana Agustí, Marit Reigstad, Svein Kristiansen, Paul F. J. Wassmann, Carlos M. Duarte
Publikováno v:
Frontiers in Marine Science, Vol 5 (2018)
The European Sector of the Arctic Ocean is characterized by low CO2 concentrations in seawater during spring and summer, largely due to strong biological uptake driven by extensive plankton blooms in spring. The spring plankton bloom is eventually te
Externí odkaz:
https://doaj.org/article/2b7c33cd4cbe4549ae0cba96c136a577
Autor:
Achim Randelhoff, Marit Reigstad, Melissa Chierici, Arild Sundfjord, Vladimir Ivanov, Mattias Cape, Maria Vernet, Jean-Éric Tremblay, Gunnar Bratbak, Svein Kristiansen
Publikováno v:
Frontiers in Marine Science, Vol 5 (2018)
Eastern Fram Strait and the shelf slope region north of Svalbard is dominated by the advection of warm, salty and nutrient-rich Atlantic Water (AW). This oceanic heat contributes to keeping the area relatively free of ice. The last years have seen a
Externí odkaz:
https://doaj.org/article/f574953d2fd34e28934ef9535d658fa1
Publikováno v:
Frontiers in Microbiology, Vol 8 (2017)
Microbial eukaryotes can play prominent roles in the Arctic marine ecosystem, but their diversity and variability is not well known in the ice-covered ecosystems. We determined the community composition of microbial eukaryotes in an Arctic under-ice
Externí odkaz:
https://doaj.org/article/67d0f7fa135a4ef78c558c975e00f142
Autor:
Philipp Assmy, Jens K Ehn, Mar Fernández-Méndez, Haakon Hop, Christian Katlein, Arild Sundfjord, Katrin Bluhm, Malin Daase, Anja Engel, Agneta Fransson, Mats A Granskog, Stephen R Hudson, Svein Kristiansen, Marcel Nicolaus, Ilka Peeken, Angelika H H Renner, Gunnar Spreen, Agnieszka Tatarek, Jozef Wiktor
Publikováno v:
PLoS ONE, Vol 8, Iss 10, p e76599 (2013)
During two consecutive cruises to the Eastern Central Arctic in late summer 2012, we observed floating algal aggregates in the melt-water layer below and between melting ice floes of first-year pack ice. The macroscopic (1-15 cm in diameter) aggregat
Externí odkaz:
https://doaj.org/article/e1be29c23a9b4899ba7345a269842f06