scholarly journals The Future of Sediment Transport and Streamflow Under a Changing Climate and the Implications for Long‐Term Resilience of the San Francisco Bay‐Delta

2020 ◽  
Vol 56 (9) ◽  
Author(s):  
Michelle A. Stern ◽  
Lorraine E. Flint ◽  
Alan L. Flint ◽  
Noah Knowles ◽  
Scott A. Wright
Keyword(s):  
Sediment Transport ◽  
San Francisco ◽  
San Francisco Bay ◽  
Changing Climate ◽  
The Future

scholarly journals A Hydrological Modeling Approach for Assessing the Impacts of Climate Change on Runoff Regimes in Slovakia

Water ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 3358
Author(s):  
Patrik Sleziak ◽  
Roman Výleta ◽  
Kamila Hlavčová ◽  
Michaela Danáčová ◽  
Milica Aleksić ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Hydrological Modeling ◽  
Performance Metrics ◽  
Climate Change Scenarios ◽  
Reference Period ◽  
Changing Climate ◽  
Time Horizons ◽  
The Future

The changing climate is a concern with regard to sustainable water resources. Projections of the runoff in future climate conditions are needed for long-term planning of water resources and flood protection. In this study, we evaluate the possible climate change impacts on the runoff regime in eight selected basins located in the whole territory of Slovakia. The projected runoff in the basins studied for the reference period (1981–2010) and three future time horizons (2011–2040, 2041–2070, and 2071–2100) was simulated using the HBV (Hydrologiska Byråns Vattenbalansavdelning) bucket-type model (the TUW (Technische Universität Wien) model). A calibration strategy based on the selection of the most suitable decade in the observation period for the parameterization of the model was applied. The model was first calibrated using observations, and then was driven by the precipitation and air temperatures projected by the KNMI (Koninklijk Nederlands Meteorologisch Instituut) and MPI (Max Planck Institute) regional climate models (RCM) under the A1B emission scenario. The model’s performance metrics and a visual inspection showed that the simulated runoff using downscaled inputs from both RCM models for the reference period represents the simulated hydrological regimes well. An evaluation of the future, which was performed by considering the representative climate change scenarios, indicated that changes in the long-term runoff’s seasonality and extremality could be expected in the future. In the winter months, the runoff should increase, and decrease in the summer months compared to the reference period. The maximum annual daily runoff could be more extreme for the later time horizons (according to the KNMI scenario for 2071–2100). The results from this study could be useful for policymakers and river basin authorities for the optimum planning and management of water resources under a changing climate.

Seasonal, interannual, and long-term variation in sport fish contamination, San Francisco Bay

2005 ◽  
Vol 336 (1-3) ◽  
pp. 25-43 ◽  
Author(s):  
Ben K. Greenfield ◽  
Jay A. Davis ◽  
Russell Fairey ◽  
Cassandra Roberts ◽  
David Crane ◽  
...  
Keyword(s):  
San Francisco ◽  
San Francisco Bay ◽  
Term Variation ◽  
Sport Fish ◽  
Fish Contamination

Distribution of biologic, anthropogenic, and volcanic constituents as a proxy for sediment transport in the San Francisco Bay Coastal System

2013 ◽  
Vol 345 ◽  
pp. 113-142 ◽  
Author(s):  
Mary McGann ◽  
Li Erikson ◽  
Elmira Wan ◽  
Charles Powell ◽  
Rosalie F. Maddocks
Keyword(s):  
Sediment Transport ◽  
San Francisco ◽  
San Francisco Bay ◽  
Coastal System

Using stable isotopes to monitor watershed influences on aquatic trophodynamics

1999 ◽  
Vol 56 (11) ◽  
pp. 2167-2171 ◽  
Author(s):  
Brian Fry
Keyword(s):  
San Francisco ◽  
Nutrient Loading ◽  
San Francisco Bay ◽  
Estuarine System ◽  
Potamocorbula Amurensis ◽  
Isotopic Compositions ◽  
Carbon Isotopic ◽  
Routine Monitoring ◽  
C And N

Stable C and N isotope measurements of the clam Potamocorbula amurensis were used to help identify watershed-level differences in food webs of San Francisco Bay. Potamocorbula amurensis has become widely distributed in San Francisco Bay since introduction from Asia in1986. Clam samples were collected from both the river-influenced northern arm of San Francisco Bay and the lagoonal southern arm of the Bay during 1990-1991. Carbon isotopic compositions of clams responded primarily to riverine inputs and provided an index of hydrologic mixing across the estuarine system. Nitrogen isotopic compositions of clams were more responsive to watershed nutrient loading, with higher δ15N values found in South Bay, which receives stronger inputs of anthropogenic N. Routine monitoring of animal consumer isotopic compositions could be an effective way to detect long-term watershed-level changes in C and N dynamics important for secondary production in aquatic systems.

The long-term salinity field in San Francisco Bay

1996 ◽  
Vol 16 (15) ◽  
pp. 2005-2039 ◽  
Author(s):  
R.J. Uncles ◽  
D.H. Peterson
Keyword(s):  
San Francisco ◽  
San Francisco Bay ◽  
Salinity Field
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