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Doppler Lidar Measurements Of Boundary Layer Heights Over San Jose, California, Matthew Robert Lloyd
Doppler Lidar Measurements Of Boundary Layer Heights Over San Jose, California, Matthew Robert Lloyd
Master's Theses
There is a need for understanding boundary layer depth and climatology over the urban area of San Jose, California. In this paper, Doppler LiDAR data are observed from San Jose. The adopted methods of vertical velocity variance and skewness are used to determine the estimated height of the convective boundary layer and to analyze sources of turbulence. The use of these methods helped identify a few types of the boundary layer that are common in San Jose. Also examined in this paper is a brief climatology of the mean maximum convective boundary layer height in San Jose over the period …
Mobile Doppler Lidar Observations Of The Convective Boundary Layer Over California, Christopher Paul Camacho
Mobile Doppler Lidar Observations Of The Convective Boundary Layer Over California, Christopher Paul Camacho
Master's Theses
A series of transects using a truck-mounted Doppler LiDAR were conducted to obtain mobile vertical profiles of the backscatter intensity and radial velocity across California. Using the backscatter and velocity profiles, several techniques were used to estimate the depth of the convective boundary layer (CBL). The CBL was estimated from the backscatter profiles using three analyses: (1) the Haar wavelet covariance, (2) the variance, (3) the gradient. These analyses were compared to vertical velocity variance, which uses a specified threshold (0.15 m2 s-2) to determine CBL height. The accuracy of the backscatter analyses was heavily dependent on strong aerosol loading …
Nocturnal Drying In Elevated Coastal Terrain Of Central California: A Fire Weather Perspective, Richard Bagley
Nocturnal Drying In Elevated Coastal Terrain Of Central California: A Fire Weather Perspective, Richard Bagley
Master's Theses
The second largest fire shelter deployment in U. S. history occurred during the Devil Fire in a remote and rugged region of the San Francisco Bay Area when relative humidity values abruptly dropped in the middle of the night, causing rapid fire growth. Nocturnal drying in the higher elevations along California’s central coast is a unique phenomenon that poses a great risk to firefighters. Single digit relative humidity with dew points below -25°C is not uncommon during summer nights in this region. In order to provide the firefighting community with knowledge of these hazardous conditions, an event criterion was established …