/ News / Updated ASCE Standard 44 Presents Guidelines for Supercooled Fog Dispersal Programs

Updated ASCE Standard 44 Presents Guidelines for Supercooled Fog Dispersal Programs

Parul Dubey on September 18, 2020 - in News, Water

Reston, Va. – Extended periods of fog can have large economic impacts on aviation, tourism, transportation, and mining industries, as well as a negative effect on agriculture. These problems can be reduced using state-of-the-art supercooled fog dispersal technologies to increase visibility. ASCE presents guidelines for programs aimed at dispersing supercooled fog in the updated Standard Practice for the Design, Operation, and Evaluation of Supercooled Fog Dispersal Projects, ANSI/ASCE/EWRI 44-20.

The standard describes the process through which supercooled fog dispersal operations should be designed, conducted, and evaluated, and includes new material dealing with recent technological improvements. A review of supercooled fog dispersal technology is followed by an overview of fog characteristics. The design of these projects encompasses such topics as project scope, delivery methods, seeding agent selection, targeting and delivery considerations, and seeding suspension criteria. Aspects of conducting a dispersal project include the operational manual, personnel requirements, decision making, communications, and public information and safety considerations.

Hydrologists, hydrometeorologists, environmental and water resources engineers, airport and mining operations managers, water managers with governmental agencies, and others who deal with the limitations posed by supercooled fog will find this a particularly useful resource.

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About ASCE

Founded in 1852, the American Society of Civil Engineers represents more than 150,000 civil engineers worldwide and is America’s oldest national engineering society. ASCE works to raise awareness of the need to maintain and modernize the nation’s infrastructure using sustainable and resilient practices, advocates for increasing and optimizing investment in infrastructure, and improve engineering knowledge and competency.


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