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An Analysis of the Shift of Employment Toward Multi-Sectoral Services Industries in California, 1960-1980Adamu, Ayalew 01 January 1987 (has links)
The structural change in the United States economy represented by the growth of the service sector has received a great deal of discussion and analysis in recent years. The purpose of this study is to identify the factors that have determined the growth of the separate service sectors (namely distributive, personal, social, and business) from 1960 to 1980 in the regional economy of California. The research addresses many issues. First, a general discussion is presented of the structural change in the United States economy toward a growing service sector. An obvious indicator of this change is the disproportionately higher rate of employment growth in the service industries as compared to the goods producing sectors. Second, it is pointed out that the current structural shift toward service affects the regional economy in shifting the labor force toward a service-oriented economy. Establishing the basic facts of this change, the research investigates the role of the four service industries in the region of California. This is carried out by analyzing the market and industrial factors thought to be the determinants of this growth and the causes of decentralization within the metropolitan areas in California. The empirical findings offer some answers to question of cause for employment changes in the service industries in the regional economy. The most important is that the growth of employment in the four service industries is not brought about by a single factor. Rather, growth is attributable to a combination of market and industrial variables, and the relative strength of the variables differs among the different service industries. The research also presents findings about the relationships among the service industries in terms of the employment changes in them. In general the research provides a contribution to future discussions of the service industries in the metropolitan labor market of the regional economy, and of the nature of regional occupational growth arising out of the structural change described.
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Crustal structure of the Continental Borderland and the adjacent portion of Baja California between latitudes 30⁰N and 33⁰NPlawman, Thomas Leon 16 December 1977 (has links)
Gravity, magnetic and seismic data indicate that the oceanic
crust is 9.7 km thick west of the Continental Borderland. The top
of the mantle is about 12 km deep under the Borderland, and deepens
to 27 km beneath the Peninsular Ranges of Baja California. The
mantle is about 20 km below the surface of the Imperial Valley and
deepens to 27 km under the area east of the Imperial Valley.
The age of the youngest detectable remnant magnetic anomaly
over the oceanic crust is about 16.5 million years at 21.3°N Lat.
and decreases to the south. A magnetic anomaly expected along the
continuation of the San Benito Fault Zone is not detected by this study.
A gravity low along the base of the Patton Escarpment is at least
partially the result of a buried trench-like depression. In the vicinity
of 31.3°N Lat., 119.3°W Long. this depression is filled with 2 km
of sediments.
The geophysical and geological data are interpreted as indicating
a 6 km thick section of Franciscan rocks that extends from the west
edge of the Borderland to the Coronado Escarpment. Magnetic data
suggest that an ophiolite may be present within or on top of the Franciscan
rocks.
Several of the ridges in the Borderland have cores of high density
rocks which are interpreted as intrusives. The area just south of the
San Clemente basin has an anomalously thin upper crust. The gross
crustal structure of this region is comparable to the Imperial Valley
region and may represent a former site of crustal rifting which
occurred when the East Pacific Rise was subducted under this part of
the North American plate. North of the Santo Tomas Fault Zone are
several basins filled with more than 3 km of sediments, but south of
this fault zone the sediment cover is discontinuous and generally less
than 2 km thick. / Graduation date: 1978
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Geologic structure of the western continental margin of south central Baja California based on seismic and potential field dataCoperude, Shane Patrick 14 November 1977 (has links)
Marine geophysical data from the continental margin of Baja
California and the Gulf of California, and geological and geophysical
data from the Baja California Peninsula and mainland Mexico, outline
the major geologic and tectonic features of the Baja California
Peninsula and the surrounding areas from 24.5° N. Lat. to 27.5° N.
Lat. A crustal and subcrustal cross section consistent with observed
gravity and magnetic anomalies, and constrained by seismic refraction
stations and the mapped surface geology shows major variations of
density and magnetization in these areas. A geologic interpretation of
the cross section indicates the rocks of the Pacific continental margin
are composed of unconsolidated and semiconsolidated sediments.
Tertiary sedimentary rock, metamorphic rock of Franciscan type, and
continental crystalline rock probably corresponding to the Peninsular
Range batholith. The depth to mantle under the Baja California
Peninsula is postulated to be 20 km. In the Gulf of California a section
of low-density mantle beginning at a depth of 11 km is necessary
to fit the observed gravity values and accounts for the low seismic
velocities associated with the mantle in the Gulf. The correlation
between the observed magnetic anomalies on the Pacific continental
margin of the Baja California Peninsula and the theoretical magnetic
anomalies expected from a spreading center shows that the youngest
identifiable remanent anomaly on the Pacific side of south central
Baja California is anomaly 3' formed at 6 my B.P. The remanent
magnetic anomalies extend 50 km landward from the western edge of
the continental slope. / Graduation date: 1978
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A study of the relation between radar and raingage indicated rainfall over northern CaliforniaStrem, Eric Thomas 30 June 1975 (has links)
The WSR-57 weather radar operated by the National
Weather Service at Sacramento, California, plus a network
of precipitation gages provided data for this comparison
of radar reflectivity with precipitation rates. Located
in a valley with mountains within range of the radar on
three sides, this radar has varying sensitivity for
precipitation rates as a result of the terrain effects.
Variation in the terrain surrounding the radar has led
to a very wide scatter in precipitation rates associated
with any particular radar reflectivity. The radar failed
to detect precipitation up to 77% of the time over the
Coast Range at ranges greater than 100 nm. Linear
regression analyses revealed very poor correlation between
the raingage indicated precipitation rate and the radar
reflectivity. These analyses resulted in values of (R²),
the coefficient of determination, ranging from zero as
a minimum to only 0.502 as a maximum. Such results are
generally much poorer than results obtained by others.
The poor correlations and both overestimation and
underestimation of rainfall resulted from factors such
as range, terrain blocking, windward or leeward exposure,
freezing level height, beam height and width, and the
distribution of water vapor in the vertical. / Graduation date: 1976
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Analysis and interpretation of magnetic anomalies observed in north-central CaliforniaHuppunen, JoAnne L. 01 November 1983 (has links)
To assist in the assessment of the geothermal potential of north-central
California and to aid in defining the geologic transitions
between the physiographic provinces of the Klamath Range, the Cascade
Range, the Modoc Plateau, the Great Valley, and the Sierra Nevada
Range, personnel from the Geophysics Group in the College of Oceanography
at Oregon State University conducted a detailed aeromagnetic
survey extending from 40°15' to 42°00'N latitude and from 120°45'
to l22°45'W longitude.
Two forms of spectral analysis, the energy spectrum and the exponential
methods, were used to make source-top and source-bottom depth
calculations. The magnetic source-bottom depths were interpreted as
Curie-point isotherm depths. Based on the energy spectrum analysis,
several regions with elevated Curie-point isotherm depths were mapped:
(1) the Secret Spring Mountain-National Lava Beds Monument area, (2)
the Mount Shasta area, (3) the Big Valley Mountains area, and (4) an
area northeast of Lassen Peak. The elevated Curie-point isotherm
depths within these areas, as shallow as 4 to 7 km below sea level
(BSL) in the Secret Spring Mountain-National Lava Beds Monument area,
the Mount Shasta area, and the area northeast of Lassen Peak, and 4 to
6 km BSL in the Big Valley Mountains area, imply vertical temperature
gradients in excess of 70°C/km and heat flow greater than 100 mW/m²
when assuming a Curie-point temperature of 580°C. Shallow source-bottom
depths of 4 to 5 km BSL were mapped in the Eddys Mountain area
and interpreted to be the depth of a lithologic contact. Source-top
depths show that the magnetic basement varies from about 3.5 km BSL,
beneath the sedimentary assemblages of the Great Valley and the eastern
Klamath Range, to near sea level in the Cascade Range. The exponential
approximation method yielded source-bottom depths which
agreed, in general, with depths determined by the energy spectrum
method. However, this method appears less reliable and its depth
estimates less accurate compared to the energy spectrum method.
A broad negative anomaly, observed on the total field magnetic
intensity map and low-pass filtered anomaly maps, suggests the sedimentary
rocks of the Klamath Complex underlie Mount Shasta and the
Medicine Lake Highlands. Magnetic lineations are oriented mainly NW. / Graduation date: 1984
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Planktic foraminifers of the California Current at 42��N : last glacial maximum and presentOrtiz, Joseph D. 02 May 1995 (has links)
MOCNESS plankton tows, sediment traps and sedimentary material are used to determine
the linkage between bio-physical forcing and foraminiferal response over a range of time
scales from the event scale to the glacial interglacial cycle. The annually averaged planktic
foraminiferal fauna of the modem California Current is a diverse community composed of
individuals from subarctic, transitional, and subtropical foraminiferal assemblages. This
community is more diverse, but less abundant in total standing stock and shell flux than the
subarctic community of the Gulf of Alaska. The use of plankton tow and isotopic data
allow us to partition the foraminiferal community into shallow dwelling euphotic zone
species and deep dwelling sub-thermocline species. On both the event and seasonal time
scales, heterotrophic species were most abundant in cold, biomass rich coastal waters. In
contrast, species which harbored endosymbionts were more abundant in oligotrophic
waters with higher ambient light levels. During the Last Glacial Maximum (LGM), the
diverse modern fauna was replaced with a low diversity, high flux, heterotrophic
community similar to that of the modern Gulf of Alaska. Modern analog temperature
estimates suggest the California Current was roughly 3��C cooler during the LGM than
today. Coupled with oxygen isotopic results from G. bulloides, the surface thermal
structure implies an equatorward flowing glacial California Current at these sites. The
Polar Front thus remained north of these locations during the LGM. Comparison of glacial
G. bulloides carbon isotopes and shell accumulation rates with organic carbon flux
estimates implies the glacial California Current was (1) higher in nutrient content, (2) lower
in plankton biomass, and (3) lower in export carbon flux than its modem counterpart. This
description suggests that during the LGM the plankton community of the California Current
was very similar to the modern plankton community of the Gulf of Alaska. / Graduation date: 1996
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Resource intensification in pre-contact central California: a bioarchaeological perspective on diet and health patterns among hunter-gatherers from the lower Sacramento Valley and San Francisco BayBartelink, Eric John 16 August 2006 (has links)
In this study, I use bioarchaeological data derived from human burials to evaluate
subsistence change in mid-to-late Holocene central California (circa 4950-200 B.P.).
Previous investigations in the region have proposed two competing models to account
for changes in subsistence patterns. The seasonal stress hypothesis argues that the
increased reliance on acorns and small seeds during the late Holocene led to improved
health status, since these resources could be stored and used as a Âbuffer against
seasonal food shortages. In contrast, resource intensification models predict temporal
declines in health during the late Holocene, as measured by a decline in dietary quality
and health status, increased population crowding, and greater levels of sedentism. I test
the hypothesis that health status, as measured by childhood stress and disease indicators,
declined during the late Holocene in central California.
I analyzed 511 human skeletons from ten archaeological sites in the Sacramento
Valley and San Francisco Bay area to investigate temporal and spatial variability in diet
and health. I analyzed a subset (n = 111) of this sample to evaluate prehistoric dietary patterns using carbon and nitrogen stable isotope ratios. Indicators of health status show
significant temporal and regional variation. In the Valley, tibial periosteal reactions,
porotic hyperostosis, and enamel hypoplasias significantly increased through time,
implying a decline in health status. In the Bay, health indicators show little temporal
variability. However, inter-regional comparisons indicate a higher prevalence of stress
and disease indicators among Bay Area skeletons than in the Valley skeletal series. The
stable isotope data from human bone collagen and apatite also indicate significant interregional
differences in prehistoric diets between the Bay and the Valley. In the Bay,
diets shifted from high trophic level marine foods to a more terrestrially focused diet
over time. In the Valley, there are no significant dietary trends observed in the data.
Dental caries and antemortem tooth loss are significantly more prevalent in the Valley
than in the Bay, and closely match the isotopic findings. The paleopathological findings
provide support for late Holocene resource intensification models posited for the Valley,
but not for the Bay Area.
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Atlas of deep current observations for central CaliforniaZamora, Ulysses D. January 2009 (has links) (PDF)
Thesis (M.S. in Applied Science (Physical Oceanography))--Naval Postgraduate School, December 2009. / Thesis Advisor(s): Collins, Curt. Second Reader: Margolina, Tetyana. "December 2009." Description based on title screen as viewed on January 28, 2010. Author(s) subject terms: California Current, RAFOS floats, current meters, seasonal variability, mesoscale eddies, tides. Includes bibliographical references (p. 261-263). Also available in print.
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Bilingual education and the politics of cultural citizenship in California pre- and post-Proposition 227Anderson, Kimberly Susan 28 August 2008 (has links)
Not available / text
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Behavioral ecology and spawning periodicity of the Gulf of California grunion, Leuresthes sardinaMuench, Kevin Allen, 1941- January 1977 (has links)
No description available.
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