Variation of the nitrate to non-seasalt (nss) sulfate equivalent ratio in precipitation at Norwegian recording stations based on measurements between August 1982 and July 1984

Variation of the nitrate to non-seasalt (nss) sulfate equivalent ratio in precipitation at Norwegian recording stations based on measurements between August 1982 and July 1984
Variation of the nitrate to non-seasalt (nss) sulfate equivalent ratio in precipitation at Norwegian recording stations based on measurements between August 1982 and July 1984

Concentrations of (a) sulfate and (b) nitrate in snow

Concentrations of (a) sulfate and (b) nitrate in snow
Concentrations of (a) sulfate and (b) nitrate in snow

Scatterplots for comparisons between the average concentrations of SO2 and SO4 in air from October 1990 to December 1993 as monitored by the European Monitoring and Evaluation Programme (EMEP) and calculated by Christensen (1996)

Scatterplots for comparisons between the average concentrations of SO2 and SO4 in air from October 1990 to December 1993 as monitored by the European Monitoring and Evaluation Programme (EMEP) and [..]
Scatterplots for comparisons between the average concentrations of SO2 and SO4 in air from October 1990 to December 1993 as monitored by the European Monitoring and Evaluation Programme (EMEP) and calculated by Christensen (1996)

Calculated concentrations of SO2 and SO42- compared with measurements at Station Nord in northeastern Greenland

Calculated concentrations of SO2 and SO42- compared with measurements at Station Nord in northeastern Greenland
Calculated concentrations of SO2 and SO42- compared with measurements at Station Nord in northeastern Greenland

The predicted (1988) average surface air sulfate concentrations in the Arctic

The predicted (1988) average surface air sulfate concentrations in the Arctic
The predicted (1988) average surface air sulfate concentrations in the Arctic

The predicted (1988) average surface air sulfur dioxide concentrations in the Arctic

The predicted (1988) average surface air sulfur dioxide concentrations in the Arctic
The predicted (1988) average surface air sulfur dioxide concentrations in the Arctic

(a) Vertical distribution of SOx (SO2 + SO42-) concentrations averaged over the area north of 75°N, and (b) contributions from the different sources

(a) Vertical distribution of SOx (SO2 + SO42-) concentrations averaged over the area north of 75°N, and (b) contributions from the different sources
(a) Vertical distribution of SOx (SO2 + SO42-) concentrations averaged over the area north of 75°N, and (b) contributions from the different sources

Model calculations of ground level yearly average sulfur dioxide air concentration on the Kola Peninsula

Model calculations of ground level yearly average sulfur dioxide air concentration on the Kola Peninsula
Model calculations of ground level yearly average sulfur dioxide air concentration on the Kola Peninsula

Summer and winter visibility observations (for relative humidities less than 80%) for the period 1951 to 1993 in North America

Summer and winter visibility observations (for relative humidities less than 80%) for the period 1951 to 1993 in North America
Summer and winter visibility observations (for relative humidities less than 80%) for the period 1951 to 1993 in North America

The time series of light scattering (?sp) and optical depth (?) at 500 nm at Barrow, Alaska

The time series of light scattering (?sp) and optical depth (?) at 500 nm at Barrow, Alaska
The time series of light scattering (?sp) and optical depth (?) at 500 nm at Barrow, Alaska

Model calculations of total (wet and dry) deposition estimates of sulfur for 1988

Model calculations of total (wet and dry) deposition estimates of sulfur for 1988
Model calculations of total (wet and dry) deposition estimates of sulfur for 1988

Vertical distribution of Arctic haze in summer, winter, and the whole year Sulfur air concentrations and relative source-contribution (%) for different heights above the ground are shown The concentrations are averages over the Arctic area north of 70°N

Vertical distribution of Arctic haze in summer, winter, and the whole year Sulfur air concentrations and relative source-contribution (%) for different heights above the ground are shown The [..]
Vertical distribution of Arctic haze in summer, winter, and the whole year Sulfur air concentrations and relative source-contribution (%) for different heights above the ground are shown The concentrations are averages over the Arctic area north of 70°N

Arctic sea-level atmospheric pressure (July)

Mean atmospheric sea-level pressure (mb) in the Arctic in July
Arctic sea-level atmospheric pressure (July)

Precipitation in the Arctic

Distribution of precipitation (mm/y) in the Arctic
Precipitation in the Arctic

Arctic atmospheric circulation

The mean circulation of the lower atmosphere during January and July as depicted by mean streamlines of the resultant winds
Arctic atmospheric circulation



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