High-resolution measurements of suspended-sediment
David J. Topping, Scott Wright, Theodore S. Melis, David M. Rubin
2007, Conference Paper, Proceedings of the Tenth International Symposium on River Sedimentation, August 1-4, 2007, Moscow, Russia
No abstract available....
Mining-impacted sources of metal loading to an alpine stream based on a tracer-injection study, Clear Creek County, Colorado
David L. Fey, Laurie Wirt
2007, Reviews in Engineering Geology (17) 85-103
Base flow water in Leavenworth Creek, a tributary to South Clear Creek in Clear Creek County, Colorado, contains copper and zinc at levels toxic to aquatic life. The metals are predominantly derived from the historical Waldorf mine, and sources include an adit, a mine-waste dump, and mill-tailings deposits. Tracer-injection and...
Migration behavior and dispersal of adult spring Chinook salmon released into Lake Scanewa on the upper Cowlitz River during 2005
R.W. Perry, Tobias J. Kock, M.A Kritter, Dennis W. Rondorf
2007, Report
During 2005, we conducted a radio-telemetry study to answer a number of basic questions about the migration behavior of adult Spring Chinook salmon (Oncorhynchus tshawytscha) released into the upper Cowlitz River watershed. We also conducted a pilot study of adult Coho salmon (Oncorhynchus kisutch) using radio-tags recovered from adult spring...
Preface
J.P.-Y. Maa, L.P. Sanford, D. H. Schoellhamer
Maa J.P.Y.Sanford L.P.Schoellhamer D.H., editor(s)
2007, Proceedings in Marine Science (8) v-vi
No abstract available....
Striving for collaborative science and communication through the Consortium for Research and Education on Emerging Contaminants (CREEC)
Juliane B. Brown, William A. Battaglin
2007, Water Resources Impact (May 2007) 22-24
Current analytical capabilities are allowing scientists to identify possible contaminants in the environment that were previously unmonitored or were present at concentrations too low for detection. New scientific evidence about the exposure pathways and potential impacts of some of these compounds on human or environmental health is regularly being published...
Life history and ecological characteristics of the Santa Ana sucker, Catostomus santaanae
Michael K. Saiki, Barbara A. Martin, Glen W. Knowles, Patrick W. Tennant
2007, California Fish and Game (93) 87-101
This study was conducted to document the life history and ecological characteristics of the Santa Ana sucker, Catostomus santaanae, within its native range in southern California. Electrofishing surveys were conducted at 3-month intervals from December 1998 to December 1999 at one site on the San Gabriel River and two sites on the Santa...
Eutrophication study at the Panjiakou-Daheiting Reservoir system, northern Hebei Province, People's Republic of China: Chlorophyll-a model and sources of phosphorus and nitrogen
Joseph L. Domagalski, Chao Lin, Yang Luo, Jie Kang, Shaoming Wang, Larry R. Brown, Mark D. Munn
2007, Agricultural Water Management (94) 43-53
Concentrations, loads, and sources of nitrate and total phosphorus were investigated at the Panjiakou and Daheiting Reservoir system in northern Hebei Province, People's Republic of China. The Luan He River is the primary source of water to these reservoirs, and the upstream watershed has a mix of land uses including...
Effects of flow diversions on water and habitat quality: Examples from California's highly manipulated Sacramento–San Joaquin Delta
Nancy E. Monsen, James E. Cloern, Jon R. Burau
2007, San Francisco Estuary and Watershed Science (5)
We use selected monitoring data to illustrate how localized water diversions from seasonal barriers, gate operations, and export pumps alter water quality across the Sacramento-San Joaquin Delta (California). Dynamics of water-quality variability are complex because the Delta is a mixing zone of water from the Sacramento and San Joaquin Rivers,...
Assessment of marine-derived nutrients in the Copper River Delta, Alaska, using natural abundance of the stable isotopes of nitrogen, sulfur, and carbon
Thomas C. Kline, Carol Ann Woody, Mary Anne Bishop, Sean P. Powers, E. Eric Knudsen
2007, American Fisheries Society Symposium (54) 51-60
We performed nitrogen, sulfur, and carbon stable isotope analysis (SIA) on maturing and juvenile anadromous sockeye and coho salmon, and periphyton in two Copper River delta watersheds of Alaska to trace salmonderived nutrients during 2003–2004. Maturing salmon were isotopically enriched relative to alternate freshwater N, S, and C sources as...
Characterization of suspended particles in Everglades wetlands
Gregory B. Noe, Judson W. Harvey, James E. Saiers
2007, Limnology and Oceanography (52) 1166-1178
We report the concentration, phosphorus (P) and nitrogen (N) content, and size and chemical fractionation of fine suspended particles (0.2‐100 µm) and colloids (3 kilodalton [kDa]‐0.1 µm) in the surface water of Everglades wetlands along regional and P‐enrichment gradients. Total suspended sediment concentrations ranged from 0.7 to 2.7 mg L−1....
Holocene climates and connections between the San Francisco Bay Estuary and its watershed: A review
F. Malamud-Roam, M. Dettinger, B. Lynn Ingram, Malcolm K. Hughes, Joan Florsheim
2007, San Francisco Estuary and Watershed Science (5)
Climate over the watershed of the San Francisco Bay Delta estuary system varies on a wide range of space and time scales, and affects downstream estuarine ecosystems. The historical climate has included mild to severe droughts and torrential rains accompanied by flooding, providing important lessons for present-day resource managers. Paleoclimate...
Occurrence of pesticides in water, sediment, and soil from the Yolo Bypass, California
Kelly L. Smalling, James L. Orlando, Kathryn Kuivila
2007, San Francisco Estuary and Watershed Science (5)
The objective of this study was to evaluate the potential sources of pesticides to the Yolo Bypass, including those that could potentially impact critical life stages of resident fish. To assess direct inputs during inundation, pesticide concentrations were analyzed in water and suspended and bed sediment samples collected from source...
The geochemistry of pesticides
Jack E. Barbash
2007, Book chapter, Treatise on geochemistry
The mid-1970s marked a major turning point in human history, for it was at that moment that the ability of the Earth’s ecosystems to absorb most of the biological impacts of human activities appears to have been exceeded by the magnitude of those impacts. This conclusion is based partly upon...
Monitoring Hurricane Rita Inland Storm Surge
Benton D. McGee, Roland W. Tollett, Burl B. Goree
2007, Circular 1306-7J
Pressure transducers (sensors) are accurate, reliable, and cost-effective tools to measure and record the magnitude, extent, and timing of hurricane storm surge. Sensors record storm-surge peaks more accurately and reliably than do high-water marks. Data collected by sensors may be used in storm-surge models to estimate when, where, and to...
Current and Future Science Plans for Restoring a Resilient Coast
2007, Circular 1306-8A
The overarching goal of U.S. Geological Survey (USGS) Gulf Coast science in the aftermath of the 2005 hurricane season will be to provide the scientific information, knowledge, and tools required to ensure that decisions about coastal land resource use, management practices, and future development in the coastal zone and adjacent...
Environmental impact of Hurricane Katrina on Lake Pontchartrain
Thomas Heitmuller, Brian C. Perez
2007, Circular 1306-7G
Hurricane Katrina slammed the Louisiana-Mississippi Gulf Coast with 135-mi/hour (217-km/hour) winds and up to a 30-ft (9-m) storm surge. Lake Pontchartrain was further subjected to environmental threat by way of the millions of gallons of contaminated flood water that were pumped daily from the city of New Orleans into the...
Effects of Hurricanes Katrina and Rita on the chemistry of bottom sediments in Lake Pontchartrain, La.
Peter C. Van Metre, Arthur J. Horowitz, Barbara Mahler, William T. Foreman, Christopher C. Fuller, Mark R. Burkhardt, Kent A. Elrick, Edward T. Furlong, Stanley C. Skrobialowski, James J. Smith, Jennifer T. Wilson, Stephen D. Zaugg
2007, Circular 1306-7F
Concerns about the effect of pumping contaminated flood waters into Lake Pontchartrain following the hurricanes of 2005 prompted the U.S. Geological Survey (USGS) to sample street mud, canal-suspended sediment, and bottom sediment in Lake Pontchartain. The samples were analyzed for a wide variety of potential inorganic and organic contaminants. Results...
Water quality of Lake Pontchartrain and outlets to the Gulf of Mexico following Hurricanes Katrina and Rita: Chapter 7E in Science and the storms-the USGS response to the hurricanes of 2005
Stanley C. Skrobialowski, W. Reed Green, Joel M. Galloway
2007, Circular 1306-7E
Water-quality samples collected from drainage canals, from Lake Pontchartrain, La., and from flood waters contained contaminants typically found in waters influenced by urban runoff. Pesticides and wastewater compounds were detected in all water samples, but none exceeded U.S. Environmental Protection Agency (EPA) drinking water or aquatic life criteria. Although metals...
Hurricane Katrina flooding and oil slicks mapped with satellite imagery
Russell P. Rykhus, Zhong Lu
2007, Circular 1306-3F
A multiple-database approach that combined remotely sensed data from Radarsat-1 and Landsat Thematic Mapper Plus (ETM+) imagery was used to map Hurricane Katrinainduced flooding and to identify offshore oil slicks. Maps depicting the areal extent of flooding, oil slicks, and floating debris provide vital information to emergency managers for directing...
Temporal analysis of floodwater volumes in New Orleans after Hurricane Katrina
Jodie Smith, James Rowland
2007, Circular 1306-3H
Satellite images from multiple sensors and dates were analyzed to measure the extent of flooding caused by Hurricane Katrina in the New Orleans, La., area. The flood polygons were combined with a high-resolution digital elevation model to estimate water depths and volumes in designated areas. The multiple satellite acquisitions enabled...
Effects of Hurricane Katrina’s storm surge on the quality of shallow aquifers near the northern shoreline of Lake Pontchartrain, southeastern Louisiana
Dan J. Tomaszewski, John K. Lovelace
2007, Circular 1306-7D
The U.S. Geological Survey (USGS) sampled 13 wells on the northern shoreline of Lake Pontchartrain to determine the effect of Hurricane Katrina-induced storm surge water on the shallow groundwater resources. Surge water entering damaged wells did not contaminate the entire aquifer; however, contamination did occur locally at well sites. Because...
Examining offshore sediment-hosted contaminant transport from Hurricane Katrina
Peter W. Swarzenski, Pamela L. Campbell, Richard Z. Poore, Lisa E. Osterman, Robert J. Rosenbauer
2007, Circular 1306-7A
A rapid-response expedition was organized after the passage of Hurricane Katrina to investigate potential offshore environmental impacts and storm-induced sediment-transport processes. Both water-column and sediment samples were collected on the Louisiana shelf for a full complement of organic, inorganic, and geochronological tracers. Based on excess lead-210 (210Pb) inventories in cores...
Land area changes in coastal Louisiana after Hurricanes Katrina and Rita
John A. Barras
2007, Circular 1306-5B
Comparison of classified Landsat Thematic Mapper (TM) satellite imagery acquired before and after the landfalls of Hurricanes Katrina (August 29, 2005) and Rita (September 24, 2005) demonstrated that water area increased by 217 mi2 (562 km2) in coastal Louisiana. Approximately 82 mi2 (212 km2) of new water areas were in...
Potential consequences of saltwater intrusion associated with Hurricanes Katrina and Rita
Gregory D. Steyer, Brian C. Perez, Sarai C. Piazza, Glenn Suir
2007, Circular 1306-6C
Hurricanes Katrina and Rita pushed salt water from the Gulf of Mexico well inland into freshwater marsh communities in coastal Louisiana. This paper describes the spatial extent of saltwater intrusion and provides an initial assessment of impacts (salt stress) to coastal marsh vegetation communities....
Wind damage and salinity effects of Hurricanes Katrina and Rita on coastal baldcypress forests of Louisiana
Thomas W. Doyle, William H. Conner, Richard H. Day, Ken W. Krauss, Christopher M. Swarzenski
2007, Circular 1306-6F
The frequency of hurricane landfall in a given coastal stretch may play a more important role in the ecology of coastal forests than previously thought because of direct and indirect impacts of fallen trees and the introduction of salt water that lingers long after the storm passes. Findings show that...
