Arctic Haze: Natural or Pollution?

The overall chemical composition of the Arctic aerosol was better defined; sulfur and carbon dominate. Different Mn/V ratios on different sides of the Arctic were found; both were inconsistent with eastern North American source. 222Rn data for Barrow were produced. They indicated a source to the nor...

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Bibliographic Details
Main Authors: Rahn, Kenneth A, Shaw, Glenn E
Other Authors: RHODE ISLAND UNIV NARRAGANSETT GRADUATE SCHOOL OF OCEANOGRAPHY
Format: Text
Language:English
Published: 1980
Subjects:
Meteorology
Geology
Geochemistry and Mineralogy
Soil Mechanics
*HAZE
AEROSOLS
AIR MASS ANALYSIS
AIR POLLUTION
ALASKA
ARCTIC REGIONS
CARBON
CHEMICAL COMPOSITION
CLOUDS
DEPOSITION
DESERTS
DISTRIBUTION
DUST
HEATING
MATHEMATICAL MODELS
PARTICLE SIZE
PARTICLES
SAMPLING
SOILS
SULFUR
TRACE ELEMENTS
Arctic
Arctic Ocean
Fairbanks
Barrow
Iceland
Alaska
Online Access:http://www.dtic.mil/docs/citations/ADA128371
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA128371
Description
Summary:The overall chemical composition of the Arctic aerosol was better defined; sulfur and carbon dominate. Different Mn/V ratios on different sides of the Arctic were found; both were inconsistent with eastern North American source. 222Rn data for Barrow were produced. They indicated a source to the north. Arguments were developed for a Eurasian source and against a North American source of Arctic aerosol. Chemical and physical aspects of long-range transport of polluted air masses to the Arctic were revealed by numerical simulation. The cloud-active fraction of the aerosol of Iceland was seen to parallel pollution-derived SO4 and V. Heating by Arctic aerosol in spring was calculated. Deposition of aerosol to the Arctic Ocean was estimated. High Br in North American Arctic in spring was noted--neither source nor effects is yet known. Trace-element composition of desert soils was found to be nearly constant within the aerosol-size range and form desert to desert, but highly variable for larger particles. Particle-size distributions of Fairbanks aerosol were estimated by inverting optical data. Cloudiness in the Arctic was found to be generally unchanged since 1920. Haze was reported in 114 of 3274 Ptarmigan flights, with greatest frequency in March-May. Personally Identifiable Information (PII) was redacted.

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