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Physical Oceanography of Frontal Zones in the Subarctic Seas
Physical Oceanography Frontal Zones Subarctic Seas
2015/7/27
Fronts and frontal zones form natural boundaries in the oceans. Their effects are sometimes dramatic when seen from deck level, such as the massive changes in marine life, bird life, and ocean color s...
Subarctic Cetaceans in the Southern Chukchi Sea: Evidence of Recovery or Response to a Changing Ecosystem
Production sea ice the bering strait tourism sea ice cover
2015/7/16
The southern Chukchi Sea is one of the most productive areas in the world ocean. Over the past decade, there have been dramatic changes in this region in sea ice cover and in Bering Strait inflow, and...
Seasonal dynamics of autotrophic and heterotrophic plankton metabolism and PCO2 in a subarctic Greenland fjord
Biological metabolic kinetics Greenland fjord
2014/10/16
We measured net planktonic community production (NCP), community respiration (CR), and gross primary
production (GPP) in September, February, and May in a subarctic Greenland fjord influenced by glac...
Microbial dimethylsulfoniopropionate (DMSP) dynamics along a natural iron gradient in the northeast subarctic Pacific
Microbial dimethylsulfoniopropionate DMSP dynamics along a natural iron gradient northeast subarctic Pacific
2014/4/17
We characterized the effect of an inshore-offshore gradient in Fe in the northeast subarctic Pacific on the bacterioplankton and phytoplankton assemblages and on the microbial cycling of particulate a...
The role of net community production in air–sea carbon fluxes at the North Pacific subarctic–subtropical boundary region
air–sea carbon fluxes net community production
2014/4/17
The North Pacific subarctic–subtropical boundary region is an important sink for atmospheric CO2
, with high
annual influx relative to surrounding waters and large seasonal variability. The location...
Acetaldehyde is a reactive intermediate in hydrocarbon oxidation. It is both emitted and taken up by snowpacks and photochemical and physical processes are probably involved. Understanding the reactiv...
Simulation of the specific surface area of snow using a one-dimensional physical snowpack model:implementation and evaluation for subarctic snow in Alaska
specific surface area snow one-dimensional physical snowpack model subarctic snow Alaska
2010/2/3
The specific surface area (SSA) of the snow constitutes a powerful parameter to quantify the exchange of matter and energy between the snow and the atmosphere. However, currently no snow physics model...
Annual carbon gas budget for a subarctic peatland, Northern Sweden
Annual carbon gas budget a subarctic peatland Northern Sweden
2010/1/21
Temperatures in the Arctic regions are rising, thawing permafrost and exposing previously stable soil organic carbon (OC) to decomposition. This can result in northern latitude soils, which have accum...
Snowmelt Prediction in a Subarctic Drainage Area
Snowmelt Prediction Subarctic Drainage Area
2009/10/28
Three prediction methods were tested against observed melt for their ability
to predict snowmelt in a variety of subarctic environments. Four melt environments
were defined according to vegetation c...
A Growth Model for Black Ice,Snow Ice and Snow Thickness in Subarctic Basins
Growth Model Black Ice Snow Ice Snow Thickness Subarctic Basins
2009/10/28
A model for the growth of ice thickness in autumn and winter is presented.
Temperature of the upper surface of the ice sheet, snowfall and heat flux from
the water are external input variables, and ...
Over-Winter Chemistry of Subarctic Fens,Eastern Canada
Over-Winter Chemistry Subarctic Fens
2009/10/27
Two subarctic fens (one nutrient-poor, one nutrient-rich) were sampled from
October, 1984 to July, 1985 near Schefferville, northern Quebec. The changes
in concentations of chemicals (pH, conductanc...
Annual Variability in Summer Evapotranspiration and Water Balance at a Subarctic Forest Site
Annual Variability Summer Evapotranspiration Water Balance
2009/10/26
Evapotranspiration (ET) and precipitation were measured during five summers
(1989-1993 inclusive) at a subarctic forest site near Churchill, Manitoba, Canada.
Mean daily ET varied from 2.14-3.18 mm ...
Snowmelt Hydrology of Two Subarctic Slopes,Southern Yukon,Canada
Snowmelt Hydrology Subarctic Slopes
2009/10/23
Large quantities of water are discharged from subarctic basins during snowmelt
season. Runoff contributing areas as well as timing and magnitude of meltwater
generation from different slopes are hig...
Hydrologic Investigations of Groundwater and Surface-water Interactions In Subarctic Alaska
Hydrologic Investigations Surface-water Interactions Subarctic Alaska
2009/10/23
Dynamic interactions between rivers and adjacent aquifers can significantly affect
near-bank geochemistry and processes associated with natural attenuation
of contaminants by mixing water or introdu...
Simulation of Snowmelt in a Subarctic Spruce Woodland:Scale Considerations
Simulation of Snowmelt Subarctic Spruce Woodland Scale Considerations
2009/10/23
Subarctic woodlands comprise stands of spruce trees with varying degrees of
openness, giving rise to large contrasts in melt rates within the forest. The spatial
variability of the changing snow dep...