KL

John Mortensen

Ilisimatusartuuneq

Immikkoortoqarfik
Silap Pissusianik Ilisimatusarfik
Oqarasuaat
+299 361239
Email
jomo@natur.gl

Atorfik

Oceanografi

Ilisimatuussutsikkut allaaserisat

Ataatsimiinnerni allakkiat

Burgers TM, Miller LA, Rysgaard S, Mortensen J, Else B, Tremblay J-É, Papakyriakou T (2023) Distinguishing physical and biological controls on the carbon dynamics in a high-Arctic outlet strait. J Geophys Res Oceans 128: e2022JC019393

Meire L, Paulsen ML, Meire P, Rysgaard S, Hopwood MJ, Sejr MK, Stuart-Lee A, Sabbe K, Stock W, Mortensen J (2023) Glacier retreat alters downstream fjord ecosystem structure and function in Greenland. Nat Geosci 16:671-674

Stuart-Lee AE, Mortensen J, Juul-Pedersen T, Middelburg JJ, Soetaert K, Hopwood MJ, Engel A, Meire L (2023) Influence of glacier type on bloom phenology in two Southwest Greenland fjords. Estuar Coast Shelf Sci 284:108271

Willcox E, Bendtsen J, Mortensen J, Mohn C, Lemes M, Juul-Pedersen T, Holding J, Møller EF, Sejr MK, Seidenkrantz M, Rysgaard S (2023) An updated view of the water masses on the Northeast Greenland shelf and their link to the Laptev Sea and Lena River. J Geophys Res Oceans 128:e2022JC019052

Mortensen J, Rysgaard S, Winding MHS, Juul-Pedersen T, Arendt KE, Lund H, Stuart-Lee AE, Meire L (2022) Multidecadal Water Mass Dynamics on the West Greenland Shelf. JGR Oceans 127:e2022JC018724

Mortensen J, Rysgaard S, Bendtsen J, Lennert K, Kanzow T, Lund H, Meire L (2020), Subglacial discharge and its down-fjord transformation in West Greenland fjords with an ice mélange. J. Geophys. Res.: Oceans 125:e2020JC016301

Rysgaard S, Boone W, Carlson D, Sejr MK, Bendtsen J, Juul-Pedersen T, Lund H, Meire L, Mortensen J (2020) An updated view on water masses on the pan-West Greenland continental shelf and their link to proglacial fjords. J. Geophys. Res.: Oceans 125:e2019JC015564

Boone W, Rysgaard S, Carlson DF, Meire L, Kirillov S, Mortensen J, Dmitrenko I, Vergeynst L, Sejr MK (2018) Coastal freshening prevents fjord bottom water renewal in Northeast Greenland – a mooring study from 2003-2015. Geophys. Res. Lett., 45, 2726-2733

Hopwood MJ, Carroll D, Browning TJ, Meire L, Mortensen J, Krisch S, Achterberg EP (2018) Non-linear response of summertime marine productivity to increased meltwater discharge around Greenland. Nat. Commun., 9:3256

Krawczyk DW, Meire L, Lopes C, Juul-Pedersen T, Mortensen J, Li CL, Krogh T (2018) Seasonal succession, distribution and diversity of planktonic protists in relation to hydrography of the Godthåbsfjord system (SW Greenland). Polar Biology, 41, 2033-2052

Mortensen J, Rysgaard S, Arendt KE, Juul-Pedersen T, Søgaard DH, Bendtsen J, Meire L (2018) Local coastal water masses control heat levels in a West Greenland tidewater outlet glacier fjord. J. Geophys. Res. Oceans, 123, 8068-8083

Rysgaard S, Bendtsen J, Mortensen J, Sejr MK (2018) High geothermal heat flux in close proximity to the Northeast Greenland Ice Stream. Scientific Reports 8:1344

Rysgaard S, Bendtsen J, Mortensen J, Sejr MK (2018) High geothermal heat flux in close proximity to the Northeast Greenland Ice Stream. Scientific Reports, 8:1344

Bendtsen J, Mortensen J, Lendert K, Ehn J, Boone W, Galindo V, Dmitrenko IA, Kirillov SA, Kjeldsen KK, Kristoffersen Y, Barber D, Rysgaard S (2017) Sea ice breakup and marine melt of a retracting tidewater outlet glacier in northeast Greenland (81 °N). Scientific Reports 7: 4941.

Boone W, Rysgaard S, Kirillov S, Dmitrenko I, Bendtsen J, Mortensen J, Meire L, Petrusevich V, Barber DG (2017). Circulation and fjord-shelf exchange during the ice covered period in Young Sound-Tyrolerfjord, NE-Greenland (74°N). Estuarine, Coastal and Shelf Science, 194, 205-216.

Meire L, Mortensen J, Meire P, Juul-Pedersen T, Sejr MK, Rysgaard S, Nygaard R, Huybrechts P, Meysman FJR (2017) Marine-terminating glaciers sustain high productivity in Greenland fjords. Global Change Biology 23: 5344–5357

Motyka RJ, Cassotto R, Truffer M, Kjeldsen KK, van As D, Korsgaard NJ, Fahnestock M, Howat I, Langen PL, Mortensen J, Lennert K, Rysgaard S 2017. Asynchronous behavior of outlet glaciers feeding Godthåbsfjord (Nuup Kangerlua) and the triggering of Narsap Sermia’s retreat in SW Greenland. J. Glaciology, 63(238): 288-308.

Sejr MK, Stedmon CA, Bendtsen J, Abermann J, Pedersen TJ, Mortensen J, Rysgaard S (2017) Evidence of local and regional freshening of East Greenland coastal waters. Scientific reports 13183,

Meire L, Mortensen J, Rysgaard S, Bendtsen J, Boone W, Meire P, Meysman FJR (2016). Spring bloom dynamics in a subarctic fjord influenced by tidewater outlet glaciers (Godthåbsfjord, SW Greenland). J. Geophys. Res. Biogeosci., 121, 1581-1592,

Motyka RJ, Cassotto R, Truffer M, Kjeldsen KK, van As D, Korsgaard NJ, Fahnestock M, Howat I, Langen PL, Mortensen J, Lennert K, Rysgaard S (2016). Asynchronous Behavior of Outlet Glaciers Feeding Godthåbsfjord (Nuup Kangerlua) and the Triggering of Narsap Sermia’s Retreat in SW Greenland. J. Glaciology, JOG-16-0055.R4 (accepted)

Yang Q, Dixon TH, Myers PG, Bonin J, Chambers D, van den Broeke, Ribergaard MH, Mortensen J (2016). Recent increases in Arctic freshwater flux affects Labrador Sea convection and Atlantic overturning circulation. Nat. Commun., 7:10525,

Bendtsen J, Mortensen J, Lennert K, Rysgaard S (2015). Heat sources for glacial ice melt in a west Greenland tidewater outlet glacier fjord: The role of subglacial freshwater discharge, Geophys. Res. Lett. , 42. dx.

Bendtsen J, Mortensen J, Rysgaard S (2015) Modelling subglacial discharge and its influence on ocean heat transport in arctic fjords. Ocean Dynamics.

Dmitrenko IA, Kirillov SA, Rysgaard S, Barber D, Babb D, Pedersen LT, Koldunov NV, Boone W, Crabeck O, Mortensen J (2015) Polynya impacts on water properties in a Northeast Greenland fjord. Estuarine Coastal and Shelf Science.

Juul-Pedersen T, Arendt K, Mortensen J, Blicher M, Søgaard DH, Rysgaard S (2015) Seasonal and interannual phytoplankton production in a sub-arctic tidewater outlet glacier fjord, west Greenland. Marine Ecology Progress Series. 524: 27-38, dx.

Krawczyk DW, Witkowski A, Juul-Pedersen T, Arendt K, Mortensen J, Rysgaard S (2015). Microplankton succession in a SW Greenland tidewater glacial fjord influenced by coastal inflows and runoff from the Greenland Ice Sheet. Polar Biology. dx.

Langen PL, Mottram RH, Christensen JH, Boberg F, Rodehacke CB, Stendel M, van As D, Ahlstrøm AP, Mortensen J, Rysgaard S, Petersen D, Svendsen KH, Aðalgeirsdóttir G, Cappelen J (2015) Quantifying energy and mass fluxes controlling Godthåbsfjord freshwater input in a 5-km simulation (1991-2012). Journal of Climate. 28:3694-3713. dx.

Meire L, Søgaard DH, Mortensen J, Meysman FJR, Soetaert K, Arendt KE, Juul-Pedersen T, Blicher ME, Rysgaard S (2015). Glacial meltwater and primary production as drivers for strong CO2uptake in fjord and coastal waters adjacent to the Greenland Ice Sheet. Biogeosciences 12, 2347-2363. dx.

Bendtsen J, Mortensen J, Rysgaard S (2014) Seasonal surface layer dynamics and sensitivity to runoff in a high Arctic fjord (Young Sound/Tyrolerfjord, 74 °N). Journal of Geophysical Research – Oceans. dx.

Kjeldsen KK, Mortensen J, Bendtsen J, Petersen D, Lennert K, Rysgaard S (2014). Ice-dammed lake drainage cools and raises surface salinities in a tidewater outlet glacier fjord, West Greenland. Journal of Geophysical Research: Earth Surface. dx.

Mortensen J, Bendtsen J, Lennert K, Rysgaard S (2014) Seasonal variability of the circulation system in a West Greenland tidewater outlet glacier fjord, Godthåbsfjord (64°N). Journal of Geophysical Research –Earth Surface. 119, dx.

Arendt KE, Juul-Pedersen T, Mortensen J, Blicher ME, Rysgaard S (2013). A 5-year study of seasonal patterns in mesozooplankton community structure in a sub-Arctic fjord reveals dominance of Microsetella norvegica (Crustacea, Copepoda). J. Plankton Res. 35 (1), 105-120, dx.

Mortensen J, Bendtsen J, Motyka RJ, Lennert K, Truffer M, Fahnestock M, Rysgaard S (2013). On the seasonal freshwater stratification in the proximity of fast-flowing tidewater outlet glaciers in a sub-Arctic sill fjord, J. Geophys. Res. Oceans, 118, dx.

Carlsson P, Cornelissen G, Boeggild CE, Rysgaard S, Mortensen J, Kallenborn R (2012). Hydrology-linked spatial distribution of pesticides in a fjord system in Greenland. J. Environ. Monit., 2012, Advance Article. dx.

Rysgaard S, Mortensen J, Juul-Pedersen T, Sørensen, LL, Lennert K, Søgaard DH, Arendt KE, Blicher ME, Sejr MK, Bendtsen J (2012). High air-sea CO2 uptake rates in nearshore and shelf areas of Southern Greenland: Temporal and spatial variability. Marine Chemistry. dx.

Versteegh EAA, Blicher ME, Mortensen J, Rysgaard S, Als TD, Wanamaker Jr AD (2012). Oxygen isotope ratios in the shell of Mytilus edulis: archives of glacier meltwater in Greenland? Biogeosciences 9, 5231-5241. dx.

Arendt KE, Dutz J, Jonasdottir SH, Jung-Madsen S, Mortensen J, Moeller EF, Nielsen TG (2011). Effects of suspended sediments on copepods feeding in a glacial influenced sub-Arctic fjord. Journal of Plankton Research. dx.

Mortensen J, Lennert K, Bendtsen J, Rysgaard S (2011). Heat sources for glacial melt in a sub-Arctic fjord (Godthåbsfjord) in contact with the Greenland Ice Sheet, J. Geophys. Res., 116, C01013. dx.

Motyka, RJ, Truffer M, Fahnestock M, Mortensen J, Rysgaard S, Howat I (2011). Submarine melting of the 1985 Jakobshavn Isbræ floating tongue and the triggering of the current retreat, J. Geophys. Res., 116, F01007. dx.

Richter A, Rysgaard S, Dietrich R, Mortensen J, Petersen D (2011). Coastal tides in West Greenland derived from tide gauge records. Ocean Dynamics. 61:39-49. dx.

Rysgaard S, Bendtsen J, Delille B, Dieckmann G, Glud RN, Kennedy H, Mortensen J, Papadimitriou S, Thomas D, Tison J-L (2011). Sea ice contribution to air-sea CO2 exchange in the Arctic and Southern Oceans. Tellus B. dx.

Tang KW, Nielsen TG, Munk P, Mortensen J, Møller EF, Arendt KE, Tönnesson K, Juul-Pedersen T (2011). Metazooplankton community structure, feeding rate estimates, and hydrography in a meltwater-influenced Greenlandic fjord. Mar Ecol Prog Ser. Vol. 434: 77–90, 2011. dx.

Buch E, Hansen B, Olsen S, Pedersen LT, Ribergaard MH, Rysgaard S, Kliem N, Mortensen J, Bendtsen J, Nielsen TG, Møller EF, Hovgaard H, Laidre K, Heide-Jørgensen MP (2009) Impacts caused by changes in the Greenland Ice Sheet. In Dorthe Dahl-Jensen The Greenland Ice Sheet in a Changing Climate, Special Edition. In: AMAP 2009. By Dahl-Jensen D, Bamber J, Bøggild CE, Buch E, Christensen JH, Dethloff K, Fahnestock M, Marshall S, Rosing M, Steffen K, Thomas R, Truffer M, van den Broeke CJ. Arctic Monitoring and Assessment Programme (AMAP), Oslo. 115 pp.

Holfort, J., E. Hansen, S. Østerhus, S. Dye, S. Jonsson, J. Meincke, J. Mortensen, and M. Meredith, 2008, Freshwater Fluxes East of Greenland, In Arctic-Subarctic Ocean Fluxes, Springer, 263-287.