scholarly journals San Francisco Bay Program: Lessons learned for managing coastal water resources

Fact Sheet ◽  
1995 ◽  
Author(s):  
James E. Cloern ◽  
Samuel N. Luoma ◽  
Frederic H. Nichols
Keyword(s):  
Water Resources ◽  
San Francisco ◽  
Coastal Water ◽  
San Francisco Bay ◽  
Lessons Learned

scholarly journals Effect of Fluvial Discharges and Remote Non-Tidal Residuals on Compound Flood Forecasting in San Francisco Bay

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2481
Author(s):  
Babak Tehranirad ◽  
Liv Herdman ◽  
Kees Nederhoff ◽  
Li Erikson ◽  
Robert Cifelli ◽  
...  
Keyword(s):  
San Francisco ◽  
Coastal Water ◽  
Large Scale ◽  
San Francisco Bay ◽  
Flood Forecasting ◽  
Water Levels ◽  
Global Ocean ◽  
Coastal Flood ◽  
Extreme Water Levels ◽  
Recent Emergence

Accurate and timely flood forecasts are critical for making emergency-response decisions regarding public safety, infrastructure operations, and resource allocation. One of the main challenges for coastal flood forecasting systems is a lack of reliable forecast data of large-scale oceanic and watershed processes and the combined effects of multiple hazards, such as compound flooding at river mouths. Offshore water level anomalies, known as remote Non-Tidal Residuals (NTRs), are caused by processes such as downwelling, offshore wind setup, and also driven by ocean-basin salinity and temperature changes, common along the west coast during El Niño events. Similarly, fluvial discharges can contribute to extreme water levels in the coastal area, while they are dominated by large-scale watershed hydraulics. However, with the recent emergence of reliable large-scale forecast systems, coastal models now import the essential input data to forecast extreme water levels in the nearshore. Accordingly, we have developed Hydro-CoSMoS, a new coastal forecast model based on the USGS Coastal Storm Modeling System (CoSMoS) powered by the Delft3D San Francisco Bay and Delta community model. In this work, we studied the role of fluvial discharges and remote NTRs on extreme water levels during a February 2019 storm by using Hydro-CoSMoS in hindcast mode. We simulated the storm with and without real-time fluvial discharge data to study their effect on coastal water levels and flooding extent, and highlight the importance of watershed forecast systems such as NOAA’s National Water Model (NWM). We also studied the effect of remote NTRs on coastal water levels in San Francisco Bay during the 2019 February storm by utilizing the data from a global ocean model (HYCOM). Our results showed that accurate forecasts of remote NTRs and fluvial discharges can play a significant role in predicting extreme water levels in San Francisco Bay. This pilot application in San Francisco Bay can serve as a basis for integrated coastal flood modeling systems in complex coastal settings worldwide.

scholarly journals Water resources of the San Francisco Bay area, California

Circular ◽  
1957 ◽  
Author(s):  
Howard Frederick Matthai ◽  
William Back ◽  
R.P. Orth ◽  
Robert Brennan
Keyword(s):  
Water Resources ◽  
San Francisco ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Bay Area

scholarly journals Reconstructing the natural hydrology of the San Francisco Bay-Delta watershed

2015 ◽  
Vol 12 (4) ◽  
pp. 3847-3892 ◽  
Author(s):  
P. Fox ◽  
P. H. Hutton ◽  
D. J. Howes ◽  
A. J. Draper ◽  
L. Sears
Keyword(s):  
Water Resources ◽  
San Francisco ◽  
San Francisco Bay ◽  
Central Valley ◽  
Native Vegetation ◽  
Aquatic Species ◽  
Annual Average ◽  
Natural Landscape ◽  
California's Central Valley

Abstract. The San Francisco Estuary, composed of San Francisco Bay and the Sacramento–San Joaquin River Delta, is the largest estuary along the Pacific coast of the United States. The tributary watersheds of California's Central Valley are the principal sources of freshwater flow into the San Francisco Bay-Delta estuary. The Delta serves as one of the principal hubs of California's water system, which delivers 45% of the water used statewide to 25 million residents and 16 000 km2 of farmland. The development of California, from small-scale human settlements that co-existed with an environment rich in native vegetation to the eighth largest economy in the world was facilitated by reconfiguring the state's water resources to serve new uses: agriculture, industry, and a burgeoning population. The redistribution of water from native vegetation to other uses was accompanied by significant declines in native aquatic species that rely on the San Francisco Bay-Delta system. These declines have been attributed to a variety of causes, including reduction in the amount of freshwater reaching the San Francisco Bay-Delta watershed (Delta outflow); decreased sediment loads; increased nutrient loads; changes in nutrient stoichiometry; contaminants; introduced species; habitat degradation and loss; and shifts in the ocean–atmosphere system, among others. Among these stressors, only the volume of Delta outflow has been regulated in an effort to address the decline in aquatic species. As native species evolved under natural landscape conditions, prior to European settlement in the mid-18th century, we evaluated the impact of landscape changes on the amount of Delta outflow. We reconstructed the natural landscape and used water balances to estimate the long-term annual average Delta outflow that would have occurred under natural landscape conditions if the climate from 1922 to 2009 were to repeat. These outflows are referred to as "natural" Delta outflows and are the first reported estimate of natural Delta outflow. We then compared these "natural" Delta outflows with current Delta outflows for the same climate and the existing landscape, including its re-engineered system of reservoirs, canals, aqueducts and pumping plants. This analysis shows that the long-term, annual average Delta outflow under natural landscape conditions is equal to current Delta outflow because the amount of water currently used by farms, cities, and others is about equal to the amount of water formerly used by native vegetation. The development of water resources in California's Central Valley transferred water formerly used by native vegetation to new beneficial uses without reducing the long-term annual average supply to the San Francisco Bay-Delta estuary. Thus, it is unlikely that reductions in annual average Delta outflow have caused the decline in native freshwater aquatic species.

How Useful Is Landslide Hazard Information? Lessons Learned in the San Francisco Bay Region

1999 ◽  
Vol 41 (4) ◽  
pp. 368-381 ◽  
Author(s):  
David G. Howell ◽  
Earl E. Brabb ◽  
David W. Ramsey
Keyword(s):  
San Francisco ◽  
San Francisco Bay ◽  
Landslide Hazard ◽  
Lessons Learned

A Qualitative Study of Ecstasy Sellers in the San Francisco Bay Area

2004 ◽  
Author(s):  
Sheigla Murphy ◽  
Paloma Sales ◽  
Micheline Duterte ◽  
Camille Jacinto
Keyword(s):  
Qualitative Study ◽  
San Francisco ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Bay Area

Cyborg Jotería Pedagogies: Latinx Drag Queens Leveraging Communication Ecologies in the Age of the Digital and Social Displacement

2020 ◽  
Vol 14 (2) ◽  
pp. 44-66
Author(s):  
José Ramón Lizárraga ◽  
Arturo Cortez
Keyword(s):  
San Francisco ◽  
San Francisco Bay ◽  
San Francisco Bay Area ◽  
Digital Technologies ◽  
Physical World ◽  
Political Issues ◽  
Drag Queen ◽  
Bay Area ◽  
Online Presence ◽  
Drag Queens

Researchers and practitioners have much to learn from drag queens, specifically Latinx queens, as they leverage everyday queerness and brownness in ways that contribute to pedagogy locally and globally, individually and collectively. Drawing on previous work examining the digital queer gestures of drag queen educators (Lizárraga & Cortez, 2019), this essay explores how non-dominant people that exist and fluctuate in the in-between of boundaries of gender, race, sexuality, the physical, and the virtual provide pedagogical overtures for imagining and organizing for new possible futures that are equitable and just. Further animated by Donna Haraway’s (2006) influential feminist post-humanist work, we interrogate how Latinx drag queens as cyborgs use digital technologies to enhance their craft and engage in powerful pedagogical moves. This essay draws from robust analyses of the digital presence of and interviews with two Latinx drag queens in the San Francisco Bay Area, as well as the online presence of a Xicanx doggie drag queen named RuPawl. Our participants actively drew on their liminality to provoke and mobilize communities around socio-political issues. In this regard, we see them engaging in transformative public cyborg jotería pedagogies that are made visible and historicized in the digital and physical world.

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