Field Measurements with a Cloud Condensation Nucleus Spectrometer in Marine Fogs

During the last one-year reporting period, a field version of this laboratory's Cloud Condensation Nucleus (CCN) Spectrometer capable on continuously monitoring and displaying in real-time the activation spectrum of fog and cloud nuclei--was fabricated and field-tested. The tests proved it to b...

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Bibliographic Details
Main Authors: Fukuta, N., Saxena, V. K.
Other Authors: DENVER RESEARCH INST CO CLOUD PHYSICS LAB
Format: Text
Language:English
Published: 1975
Subjects:
Atmospheric Physics
Meteorology
*CONDENSATION NUCLEI
*FOG
*CLOUD PHYSICS
*SPECTROMETERS
CONCENTRATION(COMPOSITION)
METEOROLOGICAL INSTRUMENTS
SUPERSATURATION
SPECTRUM ANALYSIS
MARINE METEOROLOGY
FIELD EQUIPMENT
TEMPERATURE INVERSION
HYDROMETEORS
VISIBILITY
REAL TIME
ATMOSPHERIC CONDENSATION
PARTICLE SIZE
AEROSOLS
Hayes
Newfoundland
Online Access:http://www.dtic.mil/docs/citations/ADA030859
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA030859
Description
Summary:During the last one-year reporting period, a field version of this laboratory's Cloud Condensation Nucleus (CCN) Spectrometer capable on continuously monitoring and displaying in real-time the activation spectrum of fog and cloud nuclei--was fabricated and field-tested. The tests proved it to be a dependable field instrument. In July, 1975, the CCN Spectrometer was installed aboard U. S. Naval Ship Hayes for measuring the characteristics of aerosols that participated in marine fog formation. The spectrum measurement were made during a three-week-long cruise aboard the ship off the coasts of Nova Scotia and Newfoundland. Some two thousand spectra were measured while approaching the fog, in the fog, and getting out of the fog. A variety of fog conditions were encountered in the field. Field measurements demonstrate that the fog nuclei spectrum in the supersaturation range 0.15-1.2% undergoes a marked change at the fog boundaries.

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