The California Geographer Vol. 47 (2007)
http://hdl.handle.net/10211.3/215399
Journal of California Geographical Society2024-03-29T10:50:44ZFilling in the blanks: translating among systematic geographies
http://hdl.handle.net/10211.2/2778
Filling in the blanks: translating among systematic geographies
Puleo, Thomas J.
This article offers an approach to integrating systematic geographies
by translating among them. First, a distinction is made
between integration and synthesis, the former highlighting
the relations among geographic subdisciplines, rather than an
amalgamation of them. A matrix to be used in pursuit of this
integration is then proposed and compared to other models
of geographic integration and synthesis, namely region, place,
landscape, and network. An in-depth discussion of the relational
aspect of the model follows. The semiconductor is offered as a
model of an individual relation between two subdisciplines.
The concept of the parasite is then introduced as a metaphor
for a wide range of human, biological, and physical actors that
influence these relations. The article closes with a discussion of
grammar that further expands the relational concept, particularly
through the use of prepositions. Key concepts are adapted
from the work of Michel Serres.
2007-01-01T00:00:00ZFire risk in San Diego County, California: a weighted Bayesian model approach
http://hdl.handle.net/10211.2/2777
Fire risk in San Diego County, California: a weighted Bayesian model approach
Kolden, Crystal A.; Weigel, Timothy J.
Fire risk models are widely utilized to mitigate wildfire hazards,
but models are often based on expert opinions of less understood
fire-ignition and spread processes. In this study, we used
an empirically derived weights-of-evidence model to assess what
factors produce fire ignitions east of San Diego, California. We
created and validated a dynamic model of fire-ignition risk based
on land characteristics and existing fire-ignition history data,
and predicted ignition risk for a future urbanization scenario.
We then combined our empirical ignition-risk model with a
fuzzy fire behavior-risk model developed by wildfire experts to
create a hybrid model of overall fire risk. We found that roads
influence fire ignitions and that future growth will increase risk
in new rural development areas. We conclude that empirically
derived risk models and hybrid models offer an alternative
method to assess current and future fire risk based on management
actions.
2007-01-01T00:00:00ZOrigin of the Arrowhead landmark near San Bernardino, California
http://hdl.handle.net/10211.2/2776
Origin of the Arrowhead landmark near San Bernardino, California
Meek, Norman
A seven-acre vegetational feature in the shape of a large arrowhead
is visible from much of the San Bernardino Valley. There is
a large number of legends that explain why the arrowhead exists,
and a common theme of these legends is that the arrowhead is
a natural landmark.
The concentrations of 32 soil elements from within and outside
of the arrowhead landmark were examined. The chemical and
field measurements indicate that there do not appear to be any
substrate controls that can account for the arrowhead landmark,
and suggest that it might be a human-made or human-modified
feature.
A tentative conclusion of this work is that the arrowhead may
be a human-made advertisement created sometime in the late
1850s or early 1860s, perhaps by the founder of the nearby hot
springs resort.
2007-01-01T00:00:00ZMigrants between California and other states
http://hdl.handle.net/10211.2/2775
Migrants between California and other states
Allen, James P.; Turner, Eugene J.
Using the U.S. Census Bureau's County-to-County Migration
File and Public Use Microdata Sample File, we investigated
California's interstate migrants between 1995 and 2000. After
mapping and discussing the spatial patterns of migrants' origin
and destination counties, we calculated percentages of college
graduates and detailed industries of employment for Non-Hispanic
White, Latino, Black, and Asian migrants. To examine
migrants' social and economic fit at their destinations, we
compared them to longer-term residents of both California and
other leading destinations. In all cases inmigrants to California
had higher percentages of college graduates than did their ethnic
group in origin states, and in nearly all cases inmigrants raised
the percentage of college graduates of their ethnic group in
California. Migrants from California worked in destination-state
industries at similar or slightly lower rates than non-migrant
residents, but migrants to California were better represented in
higher-status industries than longer-resident Californians.
2007-01-01T00:00:00Z