| Watershed Analysis with the Hydrologic Engineering Center's River Analysis System (HEC-RAS) |
SEP 2004 |
21 pages |
| Authors:
Christopher R. Goodell; Gary W. Brunner; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
 | The objectives of this document are to provide a general description of the HEC-RAS model, its capabilities and limitations, data requirements, traditional and innovative methods for HEC-RAS hydraulic model calibration, and to present a case study HEC-RAS model application whereby the capabilities of HEC-RAS are demonstrated as a means to support system-wide modeling and assessment in a usable decision-support framework. |
|
| Description of the Hydrologic Engineering Center's Hydrologic Modeling System (HEC-HMS) and Application to Watershed Studies |
SEP 2004 |
18 pages |
| Authors:
Matt Fleming; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| The objective of this document is to describe the Hydrologic Engineering Center's Hydrologic Modeling System (HEC-HMS) program and its applications to watershed studies. HMS has the capability to serve as a cornerstone program with respect to the watershed perspective approach. HMS can simulate the rainfall-runoff at any point within a watershed given physical characteristics of the watershed. It is a tool for watershed management in that an HMS model can ... |
|
| The Ecosystem Functions Model: A Tool for Restoration Planning |
SEP 2004 |
11 pages |
| Authors:
John T. Hickey; Chris N. Dunn; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| The Ecosystem Functions Model (EFM) is a planning tool that analyzes ecosystem response to changes in flow regime. The U.S. Army Corps of Engineers Hydrologic Engineering Center (HEC) is developing the EFM and envisions environmental planners, biologists, and engineers using the model to help determine whether proposed alternatives (e.g., reservoir operations or levee alignments) would maintain, enhance, or diminish ecosystem health. Project teams can use the EFM to visualize existing ... |
|
| Longitudinal Loading and Nutrient Compositional Gradients in an Agriculturally Managed Watershed in West-Central Wisconsin |
SEP 2004 |
15 pages |
| Authors:
William F. James; Carlos E. Ruiz; John W. Barko; Harry L. Eakin; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| The purpose of this research was to describe and quantify biologically labile and refractory nitrogen and phosphorus species, transformations, and loads along the longitudinal axis of a river draining an intensively managed agricultural watershed. Excessive nutrient runoff (primarily as phosphorus) in agriculturally managed watersheds is a primary cause for eutrophication of Corps of Engineers and other receiving waters. Because agricultural soils are often managed for crop uptake of nitrogen (N), ... |
|
| Nutrient Loading Characteristics for Two Sub-watersheds Exhibiting Differing Agricultural Land-Use Practices |
SEP 2004 |
15 pages |
| Authors:
William F. James; Carlos E. Ruiz; John W. Barko; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| The purpose of this research was to describe and quantify biologically labile and refractory nitrogen and phosphorus constituents, transformations, and loads in the runoff of two sub-watersheds exhibiting differing agricultural land-use practices. Runoff was impacted by intensive row- cropping for corn production in one of the watersheds while the other one was impacted by dairy livestock management. |
|
| Establishing Uranium Migration Parameters for the Indian Springs Range (CD-ROM) |
25 AUG 2004 |
|
| Authors:
Clinton E. Abell; NEVADA UNIV LAS VEGAS
|
 | ELECTRONIC FILE CHARACTERISTICS: 6 files; .TXT and MS Excel (.XLS). PHYSICAL DESCRIPTION: 1 computer laser optical disc (CD-ROM); 4 3/4 in.; 477 KB and 1 hardcopy report. SYSTEMS DETAIL NOTE: ABSTRACT: For the past 24 years, depleted uranium (DU) kinetic energy penetrators used by the US Air Force have been tested and evaluated to develop targeting system algorithms at a site in the Mojave Desert. This two-fold study focused ... |
|
| J. T. Myers Lock Filling and Emptying System, Ohio River |
AUG 2004 |
111 pages |
| Authors:
John E. Hite Jr.; J. P. Crutchfield; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICSLAB
|
| Navigation improvements are planned at J. T. Myers Locks and Dam on the Ohio River main stem. The project consists of a navigation dam, a 1,200-ft- long by 110-ft-wide main lock chamber adjacent to a 600-ft-long by 110-ft-wide auxiliary lock chamber. The improvements include developing a 1,200-ft-long lock chamber from the existing 600-ft-long lock chamber. The existing filling and emptying system for the 600-ft-long chamber is a bottom lateral system ... |
|
| Three-Dimensional Eutrophication Model of Lake Washington, Washington State |
AUG 2004 |
165 pages |
| Authors:
Carl F. Cerco; Mark R. Noel; Sung-Chan Kim; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| Lake Washington is one of a system of three lakes located in northwestern Washington State (Figure 1 - 1). The lake provides a textbook example of eutrophication remediation through reduction of nutrient loads. The decline and recovery of the lake are the subject of a series of classic works by W. T. Edmondson, his students, and co-workers (Edmondson 1972; Edmondson and Lehman 1981; Edmondson 1991; Edmondson 1994). The description of ... |
|
| Modeling the Dynamics of Gully and Arroyo Formation Fort Carson and Pinon Canyon Maneuver Site, Colorado |
AUG 2004 |
125 pages |
| Authors:
Gregory E. Tucker; OXFORD UNIV (UNITED KINGDOM)
|
| Gully erosion is one of the most dramatic outcomes of environmental change, whether that change is of natural or anthropogenic origin. The initiation and growth of gully systems can lead to significant land degradation. the resulting sediment loads can lead to significant downstream impacts, including water quality degradation, reservoir and waterway sedimentation, and disturbance of aquatic ecosystems. In order to develop a better understanding of gully networks and their physics, ... |
|
| Three-Dimensional Eutrophication Model of the Lower St. John River, Florida |
AUG 2004 |
310 pages |
| Authors:
Dottie H. Tillman; Carl F. Cerco; Mark R. Noel; James L. Martin; John Hamrick; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| The CE-QUAL-ICM three-dimensional eutrophication model was applied to the lower, estuarine, portion of the St. Johns River, Florida. Transport processes were obtained from the Environmental Fluid Dynamics Code. Model application period was December 1996 through November 1998. The model activated 28 state variables in the water column including physical variables, three algal groups, multiple forms of carbon, nitrogen, phosphorus and silica, and dissolved oxygen. Several features were added to the ... |
|
| Model Structure Identification in Three Dimensions and Observation Design in Groundwater Modeling |
23 JUL 2004 |
4 pages |
| Authors:
William W-G. Yeh; Ne-Zheng Sun; CALIFORNIA UNIV LOS ANGELES DEPT OF CIVIL ENGINEERING
|
| The authors have developed a methodology for optimal observation network design for parameter structure identification in groundwater modeling. The design objective is to minimize experimental cost subject to data sufficiency requirement. By incorporating the data sufficiency requirement as a constraint in the optimization model, the methodology quantitatively unifies observation network design, model structure identification, and model application reliability. They use a geostatistical simulation method to generate realizations for the real ... |
|
| Acquisition of a Remus AUV for Autonomous Coastal Flow Mapping |
21 JUL 2004 |
4 pages |
| Authors:
Stephen Monismith; Derek Fong; Nicole Jones; Kristen Davis; Ryan Lowe; STANFORD UNIV CA DEPT OF CIVIL AND ENVIRONMENTAL ENGINEERING
|
| This report describes the acquisition of a REMUS AUV (manufactured by Hydroid Inc.) and initial efforts made using its map hydrographic fields in coastal and marine environments. To date, we have found that REMUS' capability to make repeated, unattended surveys of temperature, salinity, and chlorophyll A provides a valuable addition to traditional fixed instrumentation. However, so far we have had problems obtaining good ADCP data, especially in very shallow water ... |
|
| Modeling the Impacts of Suspended Sediment Concentration and Current Velocity on Submersed Vegetation in an Illinois River Pool, USA |
JUL 2004 |
15 pages |
| Authors:
Elly P. Best; Allen H. Teeter; Shyam K. Nair; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| This technical note uses a modeling approach to examine the impacts of suspended sediment concentrations and current velocity on the persistence of submersed macrophytes in a shallow aquatic system. Studies were conducted on Peoria Lake, Illinois, spanning historical times when a meadow-forming species (Vallisneria americana) successively thrived and disappeared, and current times when the return of submersed canopy-forming (Potamogeton pectinatus) and meadow- forming species is anticipated. Canopy-forming plants concentrate their ... |
|
| Navigation Study for Port Jersey 50-ft Channel Improvements, New York Harbor |
JUL 2004 |
47 pages |
| Authors:
Dennis W. Webb; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICSLAB
|
| Port Jersey located in New York Harbor is being evaluated for deepening and realignment. The purpose of the proposed improvements is to allow a large class of container ships to use the port. The realignment is necessary because the future ships will be too long to use the existing turning basin and will have to back out of the port. To evaluate these improvements a real-time ship simulation study was ... |
|
| Navigation Study for Arthur Kill 50-ft Channel Improvements, New York Harbor |
JUL 2004 |
39 pages |
| Authors:
Dennis W. Webb; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICSLAB
|
| The Arthur Kill Channel is a 13.2-mile segment of the New York and New Jersey Channels along the west side of Staten Island. The reach under consideration for this study extends from Newark Bay to Rowland Hook marine terminal, and includes the North of Shooters Island and Elizabethport Reaches. The proposed improvements for this study include deepening of these reaches of the Arthur Kill to -50 ft mlw to accommodate ... |
|
| Quantifying the Effect of a Freeze-Thaw Cycle on Soil Erosion, Laboratory Experiments |
JUL 2004 |
47 pages |
| Authors:
M. G. Ferrick; L. W. Gatto; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| In this paper we quantitatively tested the hypothesis that soil freeze-thaw(FT) processes significantly increase the potential for upland hillslope erosion during runoff events that follow thaw. We selected a frost- susceptible silt to obtain an upper bound on FT effects, and completed three series of six experiments each to quantify differences in soil erodibility and rill development for bare soil following a single FT cycle. Each series represented a specific ... |
|
| Estimating Risk From Spillways on Dams Using Condition Assessment Data |
18 JUN 2004 |
124 pages |
| Authors:
Allen C. Estes; NAVAL WAR COLL NEWPORT RI
|
| The United States Army Corps of Engineers is responsible for maintaining and operating the Nation's navigable waterways and is the primary agency for maintaining federal flood control dams. This includes a vast amount of infrastructure that includes 270 navigation dams, 350 reservoir dams, and 238 lock chambers (Bullock and Foltz 1995). The inland waterways which are maintained by the Corps of Engineers are used to transport 630 million tons of ... |
|
| Guidance and Lessons Learned from Monitoring Completed Navigation Projects |
JUN 2004 |
205 pages |
| Authors:
Lyndell Z. Hales; Donna L. Richey; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| The purpose of this report is to provide comprehensive site-specific and generic lessons learned from intensive monitoring of 12 different project features at each of 38 navigation projects located in 16 U.S. Army Corps of Engineers Districts around the continental United States, Alaska, Hawaii, and other Pacific islands. Generic lessons learned from seven geographic regions (Hawaii and the Pacific Islands, Alaska, Pacific coast of the U. S. mainland, Gulf of ... |
|
| Efficacy of AVAST! (trademark) Fluridone Formulation Against Eurasian Watermilfoil and NOntarget Submersed Plants |
JUN 2004 |
29 pages |
| Authors:
Angela G. Poovey; John G. Skogerboe; Kurt D. Getsinger; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| Experiments were conducted in a laboratory and an outdoor mesocosm system to evaluate the liquid AVAST fluridone formulation for control of Eurasian watermilfoil (Myriophyllum spicatum). In addition, physiological assays were used to monitor plant injury during herbicide exposure. Eurasian watermilfoil was planted in 52-L aquaria, grown to precanopy condition (21 days) , then dosed with 0, 10, 20, 40, and 80 microng L(exp -1) active ingredient (ai) fluridone for exposure ... |
|
| Napa River Salt Marsh Restoration Project. Volume 1: Environmental Impact Statement |
JUN 2004 |
803 pages |
| Authors:
Brad Norton; JONES AND STOKES SACRAMENTO CA
|
| The California State Coastal Conservancy (Coastal Conservancy), U.S. Army Corps of Engineers (Corps), and California Department of Fish and Game (DFG) (project sponsors) are proposing a salinity reduction and habitat restoration project for the 94569,460-acre Napa River Unit of the Napa-Sonoma Marshes Wildlife Area (NSMWA) (Napa River Unit). The parcel was purchased with funds from the Shell Oil Spill Settlement, State Lands Commission, Wildlife Conservation Board, and the Coastal Conservancy. ... |
|
| Napa River Salt Marsh Restoration Project. Volume 2: Environmental Impact Statement Comments Letters and Response |
JUN 2004 |
137 pages |
| Authors:
JONES AND STOKES SACRAMENTO CA
|
| The purpose of the Final Environmental Impact Statement (Final EIS) for the Napa River Salt Marsh Restoration Project is to respond to all environmental comments received on the Draft EIR/EIS and integrate appropriate changes, additions, and/or corrections into the Final EIS. The Final EIS incorporates changes based on public and agency comments and is republished completely in Volume 1. This document, Volume 2, contains the comments and responses. All written ... |
|
| Assessing the Feasibility of DNAPL Source Zone Remediation: Review of Case Studies |
MAY 2004 |
293 pages |
| Authors:
GEOSYNTEC CONSULTANTS GUELPH (ONTARIO)
|
| The overall goal of this project was to gather information on the relative successes of remediation applications under different site conditions in order to initiate the development of guidelines on DNAPL source treatment. Members of the environmental community that had attempted to remediate DNAPL source zone areas were invited to participate in a web-based survey. which remained open for several months. Survey respondents were asked a number of questions dealing ... |
|
| Using Diquat in Combination with Endothall Under Turbid Water Conditions to Control Hydrilla |
MAY 2004 |
8 pages |
| Authors:
Angela G. Poovey; John G. Skogerboe; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| This small-scale study examined three turbidity levels in the water column to investi- gate the efficacy of diquat (6,7-dihydrodipyridoL,2-ALPHA:2', 1'-Cpyrazinediium ion) in combination with the dipotassium salt of endothall (7- oxabicyclo2.2.L heptane-2,3- dicarboxylic acid) to control hydrilla (Hydrilla verticillata (L.f.) Royle). |
|
| A Regional Guidebook for Applying The Approach to Assessing Wetland Functions of Depressed Wetlands in Peninsular, Florida |
MAY 2004 |
174 pages |
| Authors:
Chris V. Noble; Rhonda Evans; Marti McGuire; Katherine Trott; Mary Davis; Ellis J. Clairain Jr; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| The Hydrogeomophic (HGM) Approach is a method for developing functional indices and the protocols used to apply these indices to the assessment of wetland functions at a site-specific scale The HGM Approach was initially designed to be used in the context of the Clean Water Act Section 404 Regulatory Program permit review to analyze project alternatives, minimize impacts, assess unavoidable impacts, determine mitigation requirements, and monitor the success of compensatory ... |
|
| A Regional Guidebook for Applying the Hydrogeomorphic Approach to Assessing Wetland Functions of Rainwater Basin Depressional Wetlands in Nebraska |
MAY 2004 |
114 pages |
| Authors:
Randy G. Stutheit; Michael C. Gilbert; P. W. Whited; Karen L. Lawrence; CORPS OF ENGINEERS WASHINGTON DC
|
| The Hydrogeomorphic (HUM) Approach is a method for developing functional indices and the protocols used to apply these indices to the assessment of wetland functions at a site-specific scale. The HUM Approach was initially designed to be used in the context of the Clean Water Act, Section 404 Regulatory Program permit review to analyze project alternatives, minimize impacts, assess unavoidable impacts, determine mitigation requirements, and monitor the success of compensatory ... |
|
| Storm-Driven Mixing and Potential Impact on the Arctic Ocean |
09 APR 2004 |
19 pages |
| Authors:
Jiayan Yang; Josefino Comiso; David Walsh; Richard Krishfield; Susumu Honjo; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Observations of the ocean, atmosphere, and ice made by Ice-Ocean Environmental Buoys indicate that mixing events reaching the depth of the halocline have occurred in various regions in the Arctic Ocean. This analysis suggests that these mixing events were mechanically forced by intense storms moving across the buoy sites. In this study, the authors analyzed these mixing events in the context of storm developments that occurred in the Beaufort Sea ... |
|
| Uniqueness in Remote Sensing of the Inherent Optical Properties of Ocean Water |
01 APR 2004 |
8 pages |
| Authors:
Michael Sydor; Richard W. Gould; Robert A. Arnone; Vladimir I. Haltrin; Wesley Goode; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| This study examines the problem of uniqueness in the relationship between the remote-sensing reflectance (Rrs) and the inherent optical properties (IOPs) of ocean water. The results show that diffuse reflectance of plane irradiance from ocean water is inherently ambiguous. Furthermore, in the 400 < lambda < 750 nanometer region of the spectrum, Rrs(lambda) also suffers from ambiguity caused by the similarity in wavelength dependence of the coefficients of absorption by ... |
|
| Phosphorus Forms and Export from Four Sub-Watersheds in the Upper Eau Galle River Basin Exhibiting Differing Land-Use Practices |
APR 2004 |
17 pages |
| Authors:
William F. James; Harry L. Eakin; John W. Barko; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| The purpose of this research was to quantify biologically labile and refractory phosphorus constituents, transformations, and export from four sub- watersheds in the Upper Eau Galle River basin exhibiting both differing percentages of land-use practice and differing spatial distribution of land uses within the watershed. Land-use practices included livestock containment areas, agricultural fields, grass hay or meadows, CRP, and woodlots. Information from this demonstration will be important in calibrating and ... |
|
| Application of an Ecological Model for the Cibolo Creek Watershed |
APR 2004 |
7 pages |
| Authors:
David Price; Terry McLendon; Cade Coldren; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| The U.S. Army Engineer District, Fort Worth (CESWF) is involved in demon- strating the utility of an ecological model in the performance and interpretation of a comprehensive General Investigations (GI) study of the Cibolo Creek watershed upstream of Interstate 10 near San Antonio, Texas. Partners to the District in this project are the Natural Resources Conservation Service (NRCS), U.S. Geological Survey (USGS), and U.S. Fish and Wildlife Service (USFW). Project ... |
|
| Limnological Responses to Changes in the Withdrawal Zone of Eau Galle Reservoir, Wisconsin |
APR 2004 |
13 pages |
| Authors:
William F. James; Harry L. Eakin; John W. Barko; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| The purpose of this research was to demonstrate limnological responses to a change in reservoir discharge from a predominantly surface withdrawal in 1991 to a hypolimnetic withdrawal in 2003. |
|
| Landscaping Considerations for Urban Stream Restoration Projects |
APR 2004 |
11 pages |
| Authors:
Pam Bailey; Craig Fischenich; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| Many restoration projects are implemented in urban environments, where the landscape and environmental conditions have been sufficiently altered that true restoration aimed at achieving "natural" functions is limited and the reconstruction of pre-impact form is impossible. Under these circumstances, and in many cases where such constraints do not exist, the success of a project as viewed by the public is often based largely on the visual appeal of the site ... |
|
| Field Indicators and Literature Summary for an Arid Southwestern Aquatic Resource Delineation at Twentynine Palms, CA |
APR 2004 |
3 pages |
| Authors:
Robert Lichvar; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| In 1994, the U.S. Marine Corps Air-Ground Combat Center (MCAGCC) in Twentynine Palms, CA, requested a delineation of their aquatic resources. MCAGCC is located within the central Mojave Desert, where annual precipitation levels are insufficient to produce the three parameters typical of wetlands (i.e. vegetation, soils, and hydrology). At MCAGCC, two major aquatic resource types other than wetlands regulated under the Clean Water Act (CWA) as "Waters of the United ... |
|
| Rock River Geographic Information System: ROCK-GIS (User Manual) |
APR 2004 |
44 pages |
| Authors:
Scott A. Tweddale; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| The Rock River GIS application and geospatial database were developed as a tool to support the Illinois River Ecosystem Restoration Feasibility Study - Restoration Needs Assessment (RNA). Its purpose is to assist in the evaluation of historic existing (primarily) predicted future and desired future conditions of the Illinois River Watershed by providing an extensive geospatial database and customized GIS analytical capabilities. The study area and extent of the associated geospatial ... |
|
| Long Term Resource Monitoring Program, Outpool Fisheries Analysis |
MAR 2004 |
29 pages |
| Authors:
John H. Chick; Mark A. Pegg; ILLINOIS NATURAL HISTORY SURVEY HAVANARIVER BIOLOGICAL STATION
|
| This study was designed to assess whether fish community data collected for the Long Term Resource Monitoring Program (LTRMP) from six regional trend analysis (RTA) areas of the Upper Mississippi River System (UMRS) can he used to make inferences to the system as a whole. Spatial coverage of fish monitor(monitoring for three LTRMP field stations was extended to "outpools" immediately above and below RTA pools 4 and 13 and the ... |
|
| Effectiveness of Pocket-Wave Absorbers in Vertical-Wall, Coastal Entrance Structures |
MAR 2004 |
14 pages |
| Authors:
Edward F. Thompson; Jr. Bottin Robert R.; James P. Selegean; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| This Coastal and Hydraulics Engineering Technical Note (CHETN) provides preliminary information on the effectiveness of pocket wave absorbers (relative to wave conditions) in vertical steel sheet-pile coastal entrance structures. The U.S. Army Corps of Engineers is responsible for dozens of harbor entrances in the Great Lakes constructed with parallel jetties. These jetties, many in operation for more than 100 years, were typically constructed of rock-filled timber cribs. Over time, the ... |
|
| Observations and Modeling of Wave-Acceleration-Induced Sediment Transport in the Surfzone |
FEB 2004 |
|
| Authors:
Fernanda G. Hoefel; MASSACHUSETTS INST OF TECH CAMBRIDGE
|
| Onshore sediment transport and sandbar migration are important to the morphological evolution of beaches, but are not understood well. Here, a new model that accounts for accelerations of wave-orbital velocities predicts onshore sandbar migration observed on an ocean beach. In both the observations and the model, the location of the maximum acceleration-induced transport moves shoreward with the sandbar, resulting in feedback between waves and morphology that drives the bar shoreward ... |
|
| Operator Functional State Assessment (l'evaluation de i'aptitude operationnelle de i'operateur humain) |
FEB 2004 |
8 pages |
| Authors:
R. Carter; S. N. Cheuvront; M. N. Sawka; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION
|
| Adequate hydration is essential for maintaining fighting effectiveness, and several common operational stresses can result in relatively large alterations in TBW content and distribution. During most "normal" conditions, humans have little trouble maintaining optimal fluid balance. However, many factors such as sickness, physical exercise, climatic exposure (heat, cold, and altitude), and psychological strain can lead to significant disturbances in water balance (Sawka, 1988). Perhaps the best example involves heat stress ... |
|
| Summaries of Minnehaha Creek Watershed District Plans/Studies/Reports |
30 JAN 2004 |
332 pages |
| Authors:
HENNINGSON DURHAM AND RICHARDSON ENGINEERING INC (HDR) MINNEAPOLIS MN
|
| This report is to be used in the development of a project management plan for the feasibility study and environmental assessment for the Minnehaha Creek Watershed in Hennepin County, Minnesota. The report includes a review of previous studies, a Gantt chart (critical path schedule) and recommendations for analysis. |
|
| Review of Ordinary High Water Mark Indicators for Delineating Arid Streams in the Southwestern United States |
JAN 2004 |
138 pages |
| Authors:
Robert W. Lichvar; James S. Wakeley; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| The U.S. Army Corps of Engineers (Corps) delineates the jurisdictional extent of wetlands and other "Waters of the United States" (WoUS) under Corps and Environmental Protection Agency (EPA) regulations implementing Section 404 of the Clean Water Act(33 U.S.C. 1344). As part of this responsibility Corps districts in the southwestern United States and elsewhere must delineate the extent of WoUS in arid areas, including arid-land stream channels. In non-tidal waters lacking ... |
|
| Lake Thompson, Mojave Desert, California: A Desiccating Late Quaternary Lake System |
JAN 2004 |
61 pages |
| Authors:
Antony R. Orme; Richard Yuretich; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| In late Pleistocene time, Lake Thompson rose to 710 meters above sea level and covered 950 square kilometers of the western Mojave Desert, California. During the Holocene time, the lake desiccated and is today represented mainly by Rogers, Rosamond, and Buckhorn Dry Lakes, which cover 200 square kilometers of Edwards AFB. Elsewhere the former lake basin is characterized by exposed lake beds and beach ridges or mantled by aeolian and ... |
|
| DRDC Suffield Soil Laboratory Program. Triaxial Test Results - Onager Site |
JAN 2004 |
|
| Authors:
J. Barchard; A. Kupper; DEFENCE RESEARCH AND DEVELOPMENT SUFFIELD (ALBERTA)
|
| AMEC Earth & Environmental Limited (AMEC) was retained by Defence Research & Development Canada (DRDC) Suffield to carry out laboratory testing on soil samples from prairie soil samples from the Mine Effects Site near Building 148 on the Experimental Proving Ground at DRDC Suffield. AMEC's geotechnical laboratory in Edmonton, Alberta received three large, bag soil samples in late October 2003 for DRDC's Piston, Onager East and Onager West sites. The ... |
|
| Absorption Spectrum of Phytoplankton Pigments Derived from Hyperspectral Remote-Sensing Reflectance |
2004 |
11 pages |
| Authors:
Zhongping Lee; Kendall L. Carder; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| For a data set collected around Baja California with chlorophyll-a concentration ((chl-a)) ranging from 0.16 to 11.3 mg/cubic meter, hyperspectral absorption spectra of phytoplankton pigments were independently inverted from hyperspectral remote-sensing reflectance using a newly developed ocean-color algorithm. The derived spectra were then compared with those measured from water samples using the filter-pad technique, and an average difference of 21.4% was obtained. These results demonstrate that the inversion algorithm worked ... |
|
| Modelling Sheet-Flow Sediment Transport in Wave-Bottom Boundary Layers Using Discrete-Element Modelling |
2004 |
16 pages |
| Authors:
Joseph Calantoni; K. T. Holland; Thomas G. Drake; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS MARINE GEOSCIENCES DIV
|
| Sediment transport in oscillatory boundary layers is a driving mechanism of coastal geomorphologic change. Most formulae for bed-load transport in near-shore regions subsume the smallest-scale physics of the phenomena by parameterizing interactions between particles. In contrast, the authors directly simulate granular physics in the wave-bottom boundary layer using a discrete- element model consisting of a three-dimensional particle phase coupled to a one- dimensional fluid phase via Newton's Third Law through ... |
|
| Development and Calibration of a Two-Dimensional Hydrodynamic Model of the Tanana River Near Tok, Alaska |
2004 |
21 pages |
| Authors:
Jeffrey S. Conaway; Edward H. Moran; GEOLOGICAL SURVEY RESTON VA
|
| This report presents the methods used, data collected, and hydrodynamic model results from the USGS and ADOT&PF study to collect bathymetric and topographic data for a hydrodynamic model of the Tanana River where bridge 505 of the Alaska Highway makes its crossing. The USGS collected an extensive bathymetric and hydraulic data set in the vicinity of the bridge using ADCP, RTK-GPS, and an echo sounder. These data, along with survey ... |
|
| Selected Hydrologic Data for Sand Cove Wash, Washington County, Utah |
2004 |
13 pages |
| Authors:
Aaron Norton; David D. Susong; GEOLOGICAL SURVEY WASHINGTON DC
|
| Southwestern Utah is one of the most arid and fastest growing regions of Utah. Development of new and existing water resources will be required to meet the water needs of the region. Sand Cove Wash, a tributary of the Santa Clara River that flows into Gunlock Reservoir, was investigated as a potential site for diverting peak runoff from the Santa Clara River in order to delay its arrival at the ... |
|
| Atrazine Concentrations in Stream Water and Streambed Sediment Pore Water in the St. Joseph and Galien River Basins, Michigan and Indiana, May 2001 - September 2003 |
2004 |
26 pages |
| Authors:
Joseph W. Duris; Howard W. Reeves; James L. Kiesler; GEOLOGICAL SURVEY WASHINGTON DC
|
| The U.S. Geological Survey (USGS) sampled multiple stream sites across the St. Joseph and Galien River Basins to detect and quantify the herbicide atrazine using a field enzyme-linked immunosorbent assay (ELISA) triazine test. In May 2001, July 2001, April 2002, August 2002, August 2003 and September 2003, composite samples were collected across streams at USGS streamflow-gaging stations. Concentrations and instantaneous loading for atrazine sampled in stream water throughout the St. ... |
|
| The Stability of Chlorofluorocarbons (CFCs) in Ground-Water Samples Archived in Borosilicate Ampoules |
2004 |
37 pages |
| Authors:
StephanieD. Shapiro; Eurybiades Busenberg; L. N. Plummer; GEOLOGICAL SURVEY RESTON VA
|
| The U.S. Geological Survey (USGS) Chlorofluorocarbon (CFC) Laboratory in Reston, Va., has been measuring concentrations of CFCs in ground-water samples since 1989 to estimate the year that a water sample was recharged to a ground-water flow system. The water samples have been collected in flamesealed borosilicate ampoules. Typically for each site, three samples were analyzed within days to a few months after collection, and additional samples were archived for extended ... |
|
| Base-Flow Data in the Arnold Air Force Base Area, Tennessee, June and October 2002 |
2004 |
33 pages |
| Authors:
John A. Robinson; Connor J. Haugh; GEOLOGICAL SURVEY RESTON VA
|
| Arnold Air Force Base (AAFB) occupies about 40,000 acres in Coffee and Franklin Counties, Tennessee. The primary mission of AAFB is to support the development of aerospace systems. This mission is accomplished through test facilities at Arnold Engineering Development Center (AEDC), which occupies about 4,000 acres in the center of AAFB. Baseflow data including discharge, temperature, and specific conductance were collected for basins in and near AAFB during high base-flow ... |
|
| Quality of Ground Water Used for Selected Municipal Water Supplies in Iowa, 1997-2002 Water Years |
2004 |
44 pages |
| Authors:
Gregory R. Littin; GEOLOGICAL SURVEY WASHINGTON DC
|
| The Iowa ground-water-quality monitoring program has been conducted cooperatively since 1982 by the Iowa Department of Natural Resources, Iowa Geological Survey; the University of Iowa Hygienic Laboratory; and the U.S. Geological Survey. The original objectives of the program were to provide baseline ground-water-quality data throughout the State for the major aquifers and to address any new areas of water-quality concern. Since the program began, the emphasis and objectives of the ... |
|
| Simulation of Integrated Surface-Water/Ground-Water Flow and Salinity for a Coastal Wetland and Adjacent Estuary |
2004 |
36 pages |
| Authors:
Christian D. Langevin; Eric D. Swain; Melinda A. Wolfert; GEOLOGICAL SURVEY WASHINGTON DC
|
| The SWIFT2D surface-water flow and transport code, which solves the St. Venant equations in two dimensions, was coupled with the SEAWAT variable-density ground-water code to represent hydrologic processes in coastal wetlands and adjacent estuaries. The integrated code was applied to the southern Everglades of Florida to quantify flow and salinity patterns and to evaluate effects of hydrologic processes. Results indicate that most surface water within Taylor Slough flows through Joe ... |
|
Hydrology, Limnology and Potamology
