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Title: A Review of Coastal Fog Microphysics During C-FOG

Journal Article · · Boundary-Layer Meteorology
ORCiD logo [1];  [2];  [3];  [4];  [5];  [6];  [7];  [4];  [8];  [6]; ORCiD logo [9];  [8];  [9];  [4];  [4];  [10];  [10];  [3];  [3]
  1. Environment and Climate Change Canada, Toronto, ON (Canada); Ontario Tech University, Oshawa, ON (Canada); Univ. of Notre Dame, IN (United States)
  2. National Center for Atmospheric Research (NCAR), Boulder, CO (United States)
  3. Univ. of Notre Dame, IN (United States)
  4. Univ. of Utah, Salt Lake City, UT (United States)
  5. Univ. of California, San Diego, CA (United States)
  6. Naval Postgraduate School, Monterey, CA (United States)
  7. Army Research Lab., Adelphi, MD (United States)
  8. Naval Research Lab. (NRL), Monterey, CA (United States)
  9. Bedford Institute of Oceanography, Dartmouth, NS (Canada)
  10. Dalhousie Univ., Halifax, NS (Canada)
+ Show Author Affiliations

The goal of this paper is to provide an overview the coastal fog microphysical measurements and to evaluate microphysical parameterizations based on the C-FOG (Toward Improving Coastal Fog Prediction) field project. C-FOG is designed to advance understanding of liquid fog formation, development, and dissipation over coastal environments to improve fog predictability and monitoring. The project took place in Eastern Canada (Nova Scotia, NS and Newfoundland, NL) coastlines and open water environments during August-October of 2018 where environmental conditions play an important role for late season’s fog formation. Visibility (Vis), wind speed (Uh), and turbulence along coastlines are the most critical weather- related parameters affecting marine transportation and aviation. In the analysis, microphysical observations are summarized first and then they are, together with 3D wind components, used for fog intensity (visibility) evaluation. Results suggest that detailed microphysical observations collected at the supersites and aboard Research Vessel (RV) Hugh R. Sharp are useful to develop microphysical parameterizations. The fog life cycle and turbulence kinetic energy dissipation rate were strongly related to each other. The magnitude of 3D wind fluctuations was higher during the formation and dissipation stages. An array of cutting-edge instruments used for data collection provided new insight into the variability and intensity of fog (visibility) and microphysics. It is concluded that further improvements in microphysical observations and parameterizations are needed to improve fog predictability of NWP (Numerical Weather Prediction) models.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1837554
Report Number(s):
PNNL-SA-159266
Journal Information:
Boundary-Layer Meteorology, Vol. 181, Issue 2-3; ISSN 0006-8314
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

54 ENVIRONMENTAL SCIENCES
Fog
Coastal
microphysics
remote sensing