The Nature of The Propagation of Sea Breeze Fronts in Central California
The Nature of The Propagation of Sea Breeze Fronts in Central California

Author:

Publisher:

Published: 1990

Total Pages: 77

ISBN-13:

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An examination is made of the nature of propagation of sea breeze fronts in central California. From 15 to 30 September, 1987, the Land/Sea Breeze Experiment (LASBEX) provided a series of meteorological observations including sodar, lidar, rawinsonde, radiosonde and surface observations. Surface observations of opportunity were also available from local marine labs and airports. Using a very simple linear model, the speed and direction of the sea breeze front is investigated. The speed of frontal propagation varied from 1 m/s to 3 m/s. A correlation between the speed of frontal propagation and estimated surface heat flux is observed. The direction of frontal propagation tends to be up valley. Comparison of the frontal propagation vector with stations in the southern portion of Monterey Bay shows that the front is curved on the mesoscale.

Climatology and Analysis of the Monterey Bay Sea Breeze
Climatology and Analysis of the Monterey Bay Sea Breeze

Author: Robert D. Round

Publisher:

Published: 1993

Total Pages: 126

ISBN-13:

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Sea breeze events on the Monterey Bay are examined from a single station at the mouth of the Salinas Valley. Data analyzed are continuous, two- minute meteorological samples of windspeed, wind direction, temperature, dew point, incoming shortwave irradiance, and incoming longwave irradiance. A speed index is defined using the average hourly maximum and minimum windspeeds oriented in the cross-shore direction thereby reflecting the thermally induced diurnal windspeed enhancement. Large-scale effects on this mesoscale circulation are presented through evaluation of changes in boundary layer depth with changes in speed index. Changes in boundary layer depth as reflected in trends of inland stratus penetration and offshore flow provide insight for anticipating sea breeze intensity.

The Sea Breeze Circulation During the Land Sea Breeze Experiment (LASBEX) in Central California
The Sea Breeze Circulation During the Land Sea Breeze Experiment (LASBEX) in Central California

Author: Michael Fagan

Publisher:

Published: 1988

Total Pages: 139

ISBN-13:

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The sea breeze circulation was investigated using a combination of acoustic doppler sodar, doppler lidar and conventional observations in central California on the coast of Monterey Bay. The study was called LASBEX (Land Sea Breeze EXperiment). A monostatic three-axis phased-array doppler sodar was able to detect the various features of the sea breeze front, which has many of the characteristics of a gravity head current produced in laboratory experiments, such as the longitudinal vortex, lobe and cleft structure, and strong regions of turbulence and convergence. Profiles of the wind field and its component variances were generated every five minutes. Vertical velocities up to 1.0 m/s were detected in the updraft region at the front. Vertical velocity fields were used to derive the horizontal divergence associated with the sea breeze and values of convergence in the range of .004/s and greater were calculated. These are believed to be more accurate values than any found in previous sea breeze studies. Doppler lidar radial velocity information was useful in mapping the various layers and wind structure of the sea breeze. The wind field of the sea breeze by the lidar was compared with the sodar. The results of this comparison showed that the sodar was well suited to investigate features under 600 meters in height, such as the updraft region behind the front and the variance of the wind, whereas the lidar was better at describing the larger scale flow, such as the return flow of the sea breeze, the convergence zone along the sea breeze front and prevailing synoptic winds. Together, these instruments gave a comprehensive and complete description of the sea breeze frontal structure, evolution and movement. Theses.(jhd).

Sea Breeze and Local Winds
Sea Breeze and Local Winds

Author: John E. Simpson

Publisher: Cambridge University Press

Published: 1994-06-02

Total Pages: 260

ISBN-13: 9780521452113

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The sea breeze affects our lives in many ways. It controls our local weather, not only on the coast but also in many districts inland. Air pollution and smog, also the distribution of airborne insect pests and the spread of pollen are all controlled by the sea breeze. In the world of sport it is important to glider pilots, sailors and surfers, and balloonists. In the book we see how radar, lidar and satellite photography have helped to forecast and map sea breezes and the all-important 'sea-breeze front'. The book ends with a description of laboratory experiments mostly carried out by the author and his co-workers, and a simple summary of theoretical models. The book will be welcomed by those researching in the subject but will also be valuable to the general reader who is interested in local weather and the natural environment.

Wind Profiler Study of the Central California Sea/Land Breeze
Wind Profiler Study of the Central California Sea/Land Breeze

Author: Jeffrey D. Stec

Publisher:

Published: 1996

Total Pages: 102

ISBN-13: 9781423582830

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Sea/land-breeze events on the Monterey Bay are examined using data from the 915-MHz wind profiler and RASS systems. These sensors were deployed during Jun-Aug 1994 in conjunction with the REINAS Project conducted by various scientific institutions in the region. Data analyzed are continuous radar and virtual temperature returns located at four sites strategically positioned around the bay. This relatively new remote sensing device provides information on maximum and minimum sea/land breeze heights, onset and cessation times, virtual temperature distribution with height, and the effect of mountainous coastal topography on the sea and land breeze system.

Coastal Meteorology
Coastal Meteorology

Author: National Research Council

Publisher: National Academies Press

Published: 1992-02-01

Total Pages: 112

ISBN-13: 0309046874

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Almost half the U.S. population lives along the coast. In another 20 years this population is expected to more than double in size. The unique weather and climate of the coastal zone, circulating pollutants, altering storms, changing temperature, and moving coastal currents affect air pollution and disaster preparedness, ocean pollution, and safeguarding near-shore ecosystems. Activities in commerce, industry, transportation, freshwater supply, safety, recreation, and national defense also are affected. The research community engaged in studies of coastal meteorology in recent years has made significant advancements in describing and predicting atmospheric properties along coasts. Coastal Meteorology reviews this progress and recommends research that would increase the value and application of what is known today.