Sensitivity of Arctic ecosystems to acid deposition

Sensitivity of Arctic ecosystems to acid deposition
Sensitivity of Arctic ecosystems to acid deposition

(a) Critical deposition of sulfur, and (b) its exceedance, in forest soils of northern Europe and Russia (5th percentile of the calculation points in each EMEP grid cell)

(a) Critical deposition of sulfur, and (b) its exceedance, in forest soils of northern Europe and Russia (5th percentile of the calculation points in each EMEP grid cell)
(a) Critical deposition of sulfur, and (b) its exceedance, in forest soils of northern Europe and Russia (5th percentile of the calculation points in each EMEP grid cell)

(a) Critical loads of acidity expressed as sulfur (5th percentile presented for each grid) for lakes in northern Fennoscandia and surface waters on Svalbard, and (b) their exceedance (95th percentile)

(a) Critical loads of acidity expressed as sulfur (5th percentile presented for each grid) for lakes in northern Fennoscandia and surface waters on Svalbard, and (b) their exceedance (95th percentile)
(a) Critical loads of acidity expressed as sulfur (5th percentile presented for each grid) for lakes in northern Fennoscandia and surface waters on Svalbard, and (b) their exceedance (95th percentile)

Diversity indices (Shannon-Weaver means) for phytoplankton, zooplankton and zoobenthos in lakes and streams in the Murmansk region

Diversity indices (Shannon-Weaver means) for phytoplankton, zooplankton and zoobenthos in lakes and streams in the Murmansk region
Diversity indices (Shannon-Weaver means) for phytoplankton, zooplankton and zoobenthos in lakes and streams in the Murmansk region

SMART model results for selected soil and lake output variables at Christmas lakes for the past 90 years and for three future scenarios assuming a 0%, 70% and 95% reduction of the present sulfur deposition levels

SMART model results for selected soil and lake output variables at Christmas lakes for the past 90 years and for three future scenarios assuming a 0%, 70% and 95% reduction of the present sulfur [..]
SMART model results for selected soil and lake output variables at Christmas lakes for the past 90 years and for three future scenarios assuming a 0%, 70% and 95% reduction of the present sulfur deposition levels

MAGIC model results for the streamwater at Dalelva for the past 90 years and for three future scenarios assuming a 0%, 70%, and 95% reduction of the present sulfur deposition levels

MAGIC model results for the streamwater at Dalelva for the past 90 years and for three future scenarios assuming a 0%, 70%, and 95% reduction of the present sulfur deposition levels
MAGIC model results for the streamwater at Dalelva for the past 90 years and for three future scenarios assuming a 0%, 70%, and 95% reduction of the present sulfur deposition levels

(a) Trajectories of five satellite-tracked buoys launched in Mackenzie Bay, Canada, and (b) results of 30-day trajectories of oil launched from five hypothetical spill locations in the Beaufort Sea

(a) Trajectories of five satellite-tracked buoys launched in Mackenzie Bay, Canada, and (b) results of 30-day trajectories of oil launched from five hypothetical spill locations in the Beaufort Sea
(a) Trajectories of five satellite-tracked buoys launched in Mackenzie Bay, Canada, and (b) results of 30-day trajectories of oil launched from five hypothetical spill locations in the Beaufort Sea

Model evaluation comparing a five-day model simulation with results of an oil release experiment in the marginal ice zone near Svalbard in April 1993

Model evaluation comparing a five-day model simulation with results of an oil release experiment in the marginal ice zone near Svalbard in April 1993
Model evaluation comparing a five-day model simulation with results of an oil release experiment in the marginal ice zone near Svalbard in April 1993

Schematic illustration of ecosystem carbon fluxes and nutrient circulation in the tundra Carbon and nutrient pathways are shown by dashed and continuous lines, respectively

Schematic illustration of ecosystem carbon fluxes and nutrient circulation in the tundra Carbon and nutrient pathways are shown by dashed and continuous lines, respectively
Schematic illustration of ecosystem carbon fluxes and nutrient circulation in the tundra Carbon and nutrient pathways are shown by dashed and continuous lines, respectively

Illustration of the role of UV radiation in the biogeochemical cycling of DOC

Illustration of the role of UV radiation in the biogeochemical cycling of DOC
Illustration of the role of UV radiation in the biogeochemical cycling of DOC

Illustration of the role of UV radiation in various light-dependent processes Natural UV radiation impacts the numbers, distribution and activity of several aquatic ecosystem targets and thus, theoretically, their interactions

Illustration of the role of UV radiation in various light-dependent processes Natural UV radiation impacts the numbers, distribution and activity of several aquatic ecosystem targets and thus, [..]
Illustration of the role of UV radiation in various light-dependent processes Natural UV radiation impacts the numbers, distribution and activity of several aquatic ecosystem targets and thus, theoretically, their interactions

Arctic geology

Bedrock geology of the Arctic
Arctic geology

Circumpolar permafrost distribution

Circumpolar permafrost distribution
Circumpolar permafrost distribution

Polygon development

Low-center and high-center polygon development
Polygon development

River break-up in the Arctic

Mean dates of river break-up in the Arctic; month number in Roman numerals
River break-up in the Arctic



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