The influence of cut off lows on sulfate burdens over the North Atlantic during April, 1987

• Main Authors: Benkovitz, C.M., Miller, M.A., Schwartz, S.E., Kwon, O.U.
• Language: unknown
• Published: 2009
• Subjects: 54 ENVIRONMENTAL SCIENCES; SULFATES; ATLANTIC OCEAN; NORTHERN HEMISPHERE; METEOROLOGY; ATMOSPHERIC CHEMISTRY; North Atlantic
• Online Access: http://www.osti.gov/servlets/purl/772448; https://www.osti.gov/biblio/772448

The authors have presented examples from a modeling study of the development of sulfur burdens over North America, the North Atlantic Ocean and Europe during April, 1987 using observation-derived meteorological data to represent the actual conditions for this period, focusing on the influence of cut-off lows on SO{sub 2} and sulfate column burdens over the North Atlantic Ocean. The analysis demonstrates that these systems can serve either as sources or sinks of sulfate, and that the major factor governing their resulting effect is the position during its formative stages relative to (a) sources of moisture, and (b) sulfur emissions, which regulates the availability of sulfur, cloud liquid water for sulfur oxidation, and the amount of precipitation for sulfate removal produced in the later stages of the life cycle.