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Full-Text Articles in Physical Sciences and Mathematics

2019 San Diego Regional Climate Collaborative Annual Report, San Diego Regional Climate Collaborative Jan 2020

2019 San Diego Regional Climate Collaborative Annual Report, San Diego Regional Climate Collaborative

San Diego Regional Climate Collaborative

The San Diego Regional Climate Collaborative is a network for public agencies that serves the San Diego region to share expertise, leverage resources and advance comprehensive solutions to facilitate climate change planning. By partnering with academia, nonprofits, and businesses, the SDRCC also works to leverage the profile of regional leadership. This is the 2019 San Diego Regional Climate Collaborative Annual Report.


Determining Atmospheric Boundary Layer Behavior Over Mountainous Terrain Using Aircraft Vertical Profiles From 2009-2018 Nasa Student Airborne Research Program Data, Dallas Mckinney Jan 2020

Determining Atmospheric Boundary Layer Behavior Over Mountainous Terrain Using Aircraft Vertical Profiles From 2009-2018 Nasa Student Airborne Research Program Data, Dallas Mckinney

Mahurin Honors College Capstone Experience/Thesis Projects

The atmospheric boundary layer (ABL) height separates turbulently mixed air and pollutants emitted at the ground from the free troposphere above and is an important parameter in numerical weather prediction and air pollution dispersion models. Discerning the ABL height over mountainous terrain has historically been difficult because of, for example, complex interactions with upper level winds, venting of humidity and aerosols into the free troposphere, and large spatiotemporal variability. ABL over mountainous terrain (MT) can closely follow the terrain, be flat, or be shallower than surrounding valleys depending on the time of day, synoptic conditions, and effects of the surrounding …


Optimization Study Of A Combined Wind-Solar Farm For A Specified Demand, Venkat Siddhartha Rama Jan 2020

Optimization Study Of A Combined Wind-Solar Farm For A Specified Demand, Venkat Siddhartha Rama

Browse all Theses and Dissertations

At the present time, using wind and solar energy for producing electricity in the United States is becoming cost competitive. According to Lazard’s 2019 [36] levelized cost of energy (LCOE) analysis of a number of energy sources used for producing electricity in the United States, wind and solar are cheaper than natural gas and coal. While capital, maintenance, operation, and fuel costs are included in LCOE numbers, energy source intermittency is not. Intermittency is an important issue with wind and solar energy sources, but not with natural gas or coal energy sources. Combining wind and solar energy sources into one …


A Case Study: The Role Of Compassionate Cities, Healthy Cities, And Un Sustainable Development Goals In City Leadership And Planning, Lisa A. Berkley Jan 2020

A Case Study: The Role Of Compassionate Cities, Healthy Cities, And Un Sustainable Development Goals In City Leadership And Planning, Lisa A. Berkley

Antioch University Full-Text Dissertations & Theses

This research is a case study examining the relevance of three holistic city frameworks—Compassionate Cities, Healthy Cities, and UN Sustainable Development Goals—to the intentional or tacit thinking of city leaders, community leaders, and activists of Marina, California. Beginning with a discussion of the origin and development of the three frameworks, the study occurred in three phases: Phase I involved interviewing the five elected leaders, city manager, community development leaders, and two planners; Phase II consisted of a survey of appointed city leaders and community organizers and activists; and Phase III was an analysis of relevant public discourse, drawing from local …


Weather And Climate Summary And Forecast: December 2019 Report, Gregory V. Jones Dec 2019

Weather And Climate Summary And Forecast: December 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for December 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: November 2019 Report, Gregory V. Jones Nov 2019

Weather And Climate Summary And Forecast: November 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for November 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: October 2019 Report, Gregory V. Jones Oct 2019

Weather And Climate Summary And Forecast: October 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for October 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Developing Spatially Accurate Rainfall Predictions For The San Francisco Bay Area Through Case Studies Of Atmospheric River And Other Synoptic Events, Alison Bridger, Dung Nguyen, Sen Chiao Sep 2019

Developing Spatially Accurate Rainfall Predictions For The San Francisco Bay Area Through Case Studies Of Atmospheric River And Other Synoptic Events, Alison Bridger, Dung Nguyen, Sen Chiao

Faculty Publications, Meteorology and Climate Science

Rainfall patterns in the San Francisco Bay Area (SFBA) are highly influenced by local topography. It has been a forecasting challenge for the main US forecast models. This study investigates the ability of the Weather Research and Forecasting (WRF) model to improve upon forecasts, with particular emphasis on the rain shadow common to the southern end of the SFBA. Three rain events were evaluated: a mid-season atmospheric river (AR) event with copious rains; a typical non-AR frontal passage rain event; and an area-wide rain event in which zero rain was recorded in the southern SFBA. The results show that, with …


Weather And Climate Summary And Forecast: September 2019 Report, Gregory V. Jones Sep 2019

Weather And Climate Summary And Forecast: September 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for September 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: August 2019 Report, Gregory V. Jones Aug 2019

Weather And Climate Summary And Forecast: August 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for August 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: July 2019 Report, Gregory V. Jones Jul 2019

Weather And Climate Summary And Forecast: July 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for July 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Extreme Oxygen Isotope Zoning In Garnet And Zircon From A Metachert Block In Melange Reveals Metasomatism At The Peak Of Subduction Metamorphism, F. Zeb Page, Emilia M. Cameron, Clara Margaret Flood, Jeffrey W. Dobbins, Michael J. Spicuzza, Kouki Kitajima, Ariel Strickland, Takayuki Ushikubo, Christopher G. Mattinson, John W. Valley Jul 2019

Extreme Oxygen Isotope Zoning In Garnet And Zircon From A Metachert Block In Melange Reveals Metasomatism At The Peak Of Subduction Metamorphism, F. Zeb Page, Emilia M. Cameron, Clara Margaret Flood, Jeffrey W. Dobbins, Michael J. Spicuzza, Kouki Kitajima, Ariel Strickland, Takayuki Ushikubo, Christopher G. Mattinson, John W. Valley

Faculty & Staff Scholarship

A tectonic block of garnet quartzite in the amphibolite-facies melange of the Catalina Schist (Santa Catalina Island, California, USA) records the metasomatic pre-treatment of high-delta O-18 sediments as they enter the subduction zone. The block is primarily quartz, but contains two generations of garnet that record extreme oxygen isotope disequilibrium and inverse fractionations between garnet cores and matrix quartz. Rare millimeter-scale garnet crystals record prograde cation zoning patterns, whereas more abundant similar to 200-mu m-diameter crystals have the same composition as rims on the larger garnets. Garnets of both generations have high-delta O-18 cores (20.8 parts per thousand-26.3 parts per …


The Birth Of A Forearc: The Basal Great Valley Group, California, Usa, D. A. Orme, Kathleen D. Surpless Jun 2019

The Birth Of A Forearc: The Basal Great Valley Group, California, Usa, D. A. Orme, Kathleen D. Surpless

Kathleen D. Surpless

The Great Valley basin of California (USA) is an archetypal forearc basin, yet the timing, structural style, and location of basin development remain controversial. Eighteen of 20 detrital zircon samples (3711 new U-Pb ages) from basal strata of the Great Valley forearc basin contain Cretaceous grains, with nine samples yielding statistically robust Cretaceous maximum depositional ages (MDAs), two with MDAs that overlap the Jurassic-Cretaceous boundary, suggesting earliest Cretaceous deposition, and nine with Jurassic MDAs consistent with latest Jurassic deposition. In addition, the pre-Mesozoic age populations of our samples are consistent with central North America sources and do not require a …


Weather And Climate Summary And Forecast: June 2019 Report, Gregory V. Jones Jun 2019

Weather And Climate Summary And Forecast: June 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for June 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Wildfire Exposure To Critical Habitat Of Endangered And Threatened Species In California, Kristin Butcher May 2019

Wildfire Exposure To Critical Habitat Of Endangered And Threatened Species In California, Kristin Butcher

Master's Theses

Researchers, fire ecologists and wildlife managers are concerned about impact to endangered and threatened species and their critical habitat due to the projected increase in future wildfires. Wildfires have been studied in California for the last six decades and have been increasing at an alarming rate since the 1980’s. In this study, I use the 2018 spatial dataset for critical habitat of federally endangered and threatened species located in the state boundaries of California and compare it to a spatial dataset for wildfires that have occurred over the span of 32 years (1984 to 2016). Trends are derived from spatial …


Utilizing Compost For Carbon Sequestration: A Strategy For Climate Goals And Land Use Management, Sarah R. Koplowicz May 2019

Utilizing Compost For Carbon Sequestration: A Strategy For Climate Goals And Land Use Management, Sarah R. Koplowicz

Master's Projects and Capstones

In recent years, research has been developed for the use of compost combined with managed grazing (and manure) on grasslands (DeLonge et al, 2013) or rangelands, resulting in carbon sequestration from the atmosphere back into soil at a relatively high rate . The Marin Carbon Project (MCP) was established as a collaborative effort to analyze the potential effects of this technique for greenhouse gas mitigation. The MCP established that combining compost applications with managed livestock grazing benefits the soil health and native plant community, while simultaneously enabling carbon sequestration through the mechanisms of plant production and microbial activity. Additional recent …


Weather And Climate Summary And Forecast: May 2019 Report, Gregory V. Jones May 2019

Weather And Climate Summary And Forecast: May 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for May 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: April 2019 Report, Gregory V. Jones Apr 2019

Weather And Climate Summary And Forecast: April 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for April 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


2019 Collaborative Species And Habitat Conservation Efforts In San Diego County: A Systematic Needs Assessment To Guide The San Diego End Extinction Initiative, Tessa Tinkler, Michelle Ahearne, Mary Jo Schumann Apr 2019

2019 Collaborative Species And Habitat Conservation Efforts In San Diego County: A Systematic Needs Assessment To Guide The San Diego End Extinction Initiative, Tessa Tinkler, Michelle Ahearne, Mary Jo Schumann

Environment

This report, prepared by the Caster Family Center for Nonprofit and Philanthropic Research documents the results of a systematic needs assessment prepared for the San Diego End Extinction (SDEE) initiative. The needs assessment was designed to assist SDEE to align its goals and priorities with San Diego County’s existing strengths and gaps in order to proactively prevent the loss of native plants and animals.


Weather And Climate Summary And Forecast: March 2019 Report, Gregory V. Jones Mar 2019

Weather And Climate Summary And Forecast: March 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for March 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


Weather And Climate Summary And Forecast: February 2019 Report, Gregory V. Jones Feb 2019

Weather And Climate Summary And Forecast: February 2019 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for February 2019. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.


1886 - Physical Data And Statistics Of California Jan 2019

1886 - Physical Data And Statistics Of California

Miscellaneous Documents and Reports

A reporting of water supply and related data collected in accordance with the law of 1878, creating the office of and defining the duties of the State Engineer, and upon which to base reports on the problems of irrigation and arterial drainage in California.


1901 - Soil Survey Of The Lower Salinas Valley California, Macy H. Lapham And W. H. Heileman Jan 2019

1901 - Soil Survey Of The Lower Salinas Valley California, Macy H. Lapham And W. H. Heileman

Miscellaneous Monterey and San Luis Obispo County Documents and Reports

Prepared by the U.S. Department of Agriculture, Bureau of Soils, this report addresses the conditions found in the Lower Salinas Valley of Monterey County, California in 1901, including the development of agriculture, climate, geology, soil types, cultivation, irrigation. groundwater, and alkali found in the soil.


1901 - Soil Survey Of The Lower Salinas Valley California, Macy H. Lapham And W. H. Heileman Jan 2019

1901 - Soil Survey Of The Lower Salinas Valley California, Macy H. Lapham And W. H. Heileman

Miscellaneous Documents and Reports

Prepared by the U.S. Department of Agriculture, Bureau of Soils, this report addresses the conditions found in the Lower Salinas Valley of Monterey County, California in 1901, including the development of agriculture, climate, geology, soil types, cultivation, irrigation. groundwater, and alkali found in the soil.


1913 - Water Resources Of California, Part Iii, Water-Supply Paper 300 Jan 2019

1913 - Water Resources Of California, Part Iii, Water-Supply Paper 300

Miscellaneous Documents and Reports

The water available for irrigation and domestic supply was the chief factor in the development of southern California, which then had a population of more than 1,000,000 people. The many mountain streams of California afforded abundant hydroelectric power, the utilization of which in manufacturing enterprises and in transportation had been made possible by the progress of electric-power transmission during the previous decade.

Information concerning the quantity of water carried by the streams had been and would continue to be an important factor in the development of these resources, for the fundamental importance of stream-flow data was so thoroughly recognized that …


1920 - Irrigation Of Twelve Million Acres In The Valley Of California; Robert Bradford Marshall Jan 2019

1920 - Irrigation Of Twelve Million Acres In The Valley Of California; Robert Bradford Marshall

Miscellaneous Documents and Reports

By 1920, California's potential wealth in land reached into billions of dollars; 12,000,000 acres of available agricultural lands remained practically untouched. Marshall proposed a large plan that would make the Valley of California the world's greatest garden. The engineering plans for such a project must be comprehensive, for their execution must not only assure the complete reclamation of 12,000,000 acres of valley lands but must also effectively and forever control the river floods and insure safe and continuous river navigation throughout the year. The hydro-electric current generated along most of the streams would furnish all the power necessary for construction …


1923 - Flow In California Streams, Bulletin No. 5, Appendix A, Report To The Legislature Jan 2019

1923 - Flow In California Streams, Bulletin No. 5, Appendix A, Report To The Legislature

Miscellaneous Documents and Reports

The legislature of 1921 appropriated $200,000 for an investigation of California's water resources by the State Department of Public Works, Division of Engineering and Irrigation. Accordingly, an engineering investigation was completed and a report on California's water resources transmitted to the legislature on January 1, 1923. The report addresses the geology, precipitation and run-off in California.


1921 - Petroleum Resources Of California, Bulletin 89 Jan 2019

1921 - Petroleum Resources Of California, Bulletin 89

Miscellaneous Documents and Reports

By 1921, the increasing demand for petroleum and its products, and the inability of production to keep pace with requirements, for several years, resulted in widespread prospecting throughout the world for possible new oil fields. In California, "wild-cat" wells were being drilled in many localities, some of them in places where even a cursory inspection of the geology would tell the futility of looking for oil. This report aimed to furnish information as to the unfavorable as well as the favorable areas of development of additional petroleum resources in California. The purpose of the report was to briefly take stock …


1929 - California Irrigation Districts, Bulletin No. 21 Jan 2019

1929 - California Irrigation Districts, Bulletin No. 21

Miscellaneous Documents and Reports

The investigation is an enlargement of a study outlined February, 1926, by the late state engineer, Wilbur F. McClure, and cooperating agencies. Work on the project was suspended in 1927 but was resumed early in 1928 at the request of the California Economic Research Council, whose committee on irrigation economics prepared the schedule used in the field investigation.

An earlier report on this subject by the same author covered the situation up to 1915, and was published as Bulletin 2 of the State Department of Engineering. This report, together with Bulletin 2, presented the most complete information it had been …


1994 - Agriculture, Water And California's Drought Of 1987-92, Kenneth W. Umbach.Pdf Jan 2019

1994 - Agriculture, Water And California's Drought Of 1987-92, Kenneth W. Umbach.Pdf

Miscellaneous Documents and Reports

The purpose of this paper was to summarize the 1987-1992 drought in the context of agriculture and water in California, to examine the types of response that farmers and institutions could and did use, and to draw lessons from that experience. California would be challenged as it grappled with population growth and environmental concerns. In view of the demand on water supplies made by California's agricultural sector (77 to 80 percent of the "developed" water used in the state, it was especially important to review those responses.