A study of the proposed Santa Fe extension from the present Redondo Branch at El Segundo to Los Angeles Harbor

The Los Angeles Harbor at San Pedro with its natural advantages, and the big development of these now underway, will very soon be the key to the traffic routes of Southern California. The Atchison, Topeka, and Santa Fe railway company realizing this and, not wishing to be caught asleep, has planned to build a line from El Segundo to the harbor. The developments of the harbor are not the only developments taking place in these localities and the proposed new line is intended to include these also.

Dr. Vernon Stauffer, first dean of California Christian College, Los Angeles, California

Seated outside the building entrance is Dr. Vernon Stauffer, first dean of California Christian College, Los Angeles, California, ca. 1921. [Later Chapman College]

Charles Clarke Chapman, Los Angeles, California, 1923

Charles Clarke Chapman, Los Angeles, California, 1923. Photographic portrait taken outdoors, postcard format.

Charles Clarke Chapman, Los Angeles, California, ca. 1895

Studio portrait photograph of Charles Clarke Chapman, Los Angeles, California, ca. 1895

Office of Charles C. Chapman, Los Angeles, California

Office of Charles C. Chapman, Los Angeles, California.

Irvin [Ernie] Clarke Chapman in California Christian College football uniform. Los Angeles, California, 1930

Irvin [Ernie] Clarke Chapman in football uniform on the campus of California Christian College, Los Angeles, California, 1930.

Mary Louise Tea Room, in the Barker Brothers Department Store in downtown Los Angeles, California

Halftone photographic postcard showing the Mary Louise Tea Room, in the Barker Brothers Department Store in downtown Los Angeles, California. The tea room was run by Dolla Harris, sister of C. C. Chapman.

George Arthur Chapman, graduation from USC portrait photograph, Los Angeles, California, 1916

George Arthur Chapman, Sr. in his graduation from University of Southern California portrait photograph, Los Angeles, California, 1916.

Ruth Knox Dowling Chapman, California Christian College, Los Angeles, California, 1921

Ruth Knox Dowling Chapman, wife of George Arthur Chapman, by steps of a building at California Christian College [Chapman College], Los Angeles, California, 1921.

Anna E. Stover Chapman, Los Angeles, California

Portrait of Anna E. Stover Chapman, taken in the Witzel Studio, Los Angeles, California, ca. 1919.

The surface urban energy and water balance scheme (SUEWS): evaluation in Los Angeles and Vancouver

An urban energy and water balance model is presented which uses a small number of commonly measured meteorological variables and information about the surface cover. Rates of evaporation-interception for a single layer with multiple surface types (paved, buildings, coniferous trees and/or shrubs, deciduous trees and/or shrubs, irrigated grass, non-irrigated grass and water) are calculated. Below each surface type, except water, there is a single soil layer. At each time step the moisture state of each surface is calculated. Horizontal water movements at the surface and in the soil are incorporated. Particular attention is given to the surface conductance used to model evaporation and its parameters. The model is tested against direct flux measurements carried out over a number of years in Vancouver, Canada and Los Angeles, USA. At all measurement sites the model is able to simulate the net all-wave radiation and turbulent sensible and latent heat well (RMSE = 25–47 W m−2, 30–64 and 20–56 W m−2, respectively). The model reproduces the diurnal cycle of the turbulent fluxes but typically underestimates latent heat flux and overestimates sensible heat flux in the day time. The model tracks measured surface wetness and simulates the variations in soil moisture content. It is able to respond correctly to short-term events as well as annual changes. The largest uncertainty relates to the determination of surface conductance. The model has the potential be used for multiple applications; for example, to predict effects of regulation on urban water use, landscaping and planning scenarios, or to assess climate mitigation strategies.