Water-Resources Investigations Report最新文献_第2页

Source and Movement of Ground Water in the Western Part of the Mojave Desert, Southern California, USA 美国南加州莫哈韦沙漠西部地下水的来源和运动

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI034313

J. Izbicki

引用次数: 17

Analysis of streamflow and water-quality data at two long-term monitoring sites on the St. Croix River, Wisconsin and Minnesota 对威斯康星州和明尼苏达州圣克罗伊河两个长期监测点的流量和水质数据进行分析

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI034334

Bernard N. Lenz

{"title":"Analysis of streamflow and water-quality data at two long-term monitoring sites on the St. Croix River, Wisconsin and Minnesota","authors":"Bernard N. Lenz","doi":"10.3133/WRI034334","DOIUrl":"https://doi.org/10.3133/WRI034334","url":null,"abstract":"Streamflow of the St. Croix River has been monitored on a long-term basis by the U.S. Geological Survey (USGS) at streamflow-gaging stations on the St. Croix River at Wisconsin State Highway 35 near Danbury, Wisconsin and below the dam at St. Croix Falls, Wisconsin. Trend analysis indicates that annual streamflow peaks, annual mean flows, and annual 7-day low flows have remained relatively stable at the Danbury (upstream) station from 1914 to 2001 but have increased by 0.45 to 0.55 percent per year at the St. Croix Falls (downstream) station from 1902 to 2001. Water-quality sampling conducted by the USGS at two associated water-quality monitoring sites from 1964 to 2001 have included analysis for nutrients, suspended sediments, metals, bacteria, and pesticides. The water-quality data at the two sites had considerable temporal variation and was often limited in extent by the data-collection needs of previous projects. The absence of consistent long-term water-quality data made detection of statistically significant trends in the water-quality data difficult. Nutrient, suspended-sediment, and major ion concentrations and field parameters were generally higher and more variable at the St. Croix Falls site than at the Danbury site. However, disparate sampling periods and strategies could cause possible biases in the comparison of water quality between sites. Introduction The U.S. Geological Survey (USGS) has performed long-term continuous streamflow measurements of the St. Croix River at two streamflow-gaging stations: at Wisconsin State Highway 35 near Danbury, Wisconsin and below the dam at St. Croix Falls, Wisconsin (fig. 1). Water-quality measurements of a variety of constituents such as nutrients, suspended sediments, metals, bacteria, and pesticides have been collected at two water-quality monitoring sites associated with these streamflow-gaging stations. This report will refer to both the streamflow-gaging stations and associated water-quality monitoring sites as sites. This study, which was initiated in 2001, was a cooperative effort between the USGS, National Park Service (NPS), and the Joint Water Quality Commission of Danbury and St. Croix Chippewa Indians of Wisconsin to analyze the long-term USGS flow data for temporal trends and provide summaries and analysis of the USGS water-quality data collected at these sites. This report presents trends in flow and differences in water quality among sites, studies, and over time. Streamflow data from 1902 to 2001 and water-quality data from 1964 to 2001 are included in this study. Differences between the long-term data sets can be used to determine the part of the St. Croix River Basin where change has occurred. Trends at the Danbury site reflect changes in the upper basin (1,580 square miles), trends in the difference between the St. Croix Falls and Danbury sites reflect changes that occurred in the part of the drainage basin between those two sites (4,660 square miles), and trends at the St. Cro","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"208 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73774993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Changes in ground-water quality near two granular-iron permeable reactive barriers in a sand and gravel aquifer, Cape Cod, Massachusetts, 1997-2000 马萨诸塞州科德角，1997-2000年，沙砾含水层中两个颗粒铁渗透性反应屏障附近的地下水质量变化

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI034309

J. G. Savoie, D. Kent, R. Smith, D. LeBlanc, D. Hubble

引用次数: 13

Status of ground-water levels and storage volume in the Equus Beds aquifer near Wichita, Kansas, January 2000-January 2003 2000年1月至2003年1月，堪萨斯州威奇托附近Equus Beds含水层的地下水位和储水量状况

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI034298

C. Hansen, W. Aucott

引用次数: 0

Biological assessment of streams in the Indianapolis Metropolitan Area, Indiana, 1999-2001 1999-2001年印第安纳州印第安纳波利斯大都会地区溪流的生物评价

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI034331

D. Voelker

引用次数: 4

Effect of water-column pH on sediment-phosphorus release rates in Upper Klamath Lake, Oregon, 2001 2001年俄勒冈州上克拉马斯湖水柱pH值对沉积物磷释放速率的影响

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI034271

L. H. Fisher, T. Wood

引用次数: 23

Chemical and Biological Quality of Surface Water at the U.S. Army Atterbury Reserve Forces Training Area near Edinburgh, Indiana, September 2000 through July 2001 2000年9月至2001年7月，印第安纳州爱丁堡附近的美国陆军阿特伯里预备役部队训练区地表水的化学和生物质量

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI034149

M. Risch

引用次数: 3

Assessment of fish assemblages and minimum sampling effort required to determine botic integrity of large rivers in southern Idaho, 2002 2002年爱达荷州南部大型河流的鱼群和最小采样努力评估

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI034274

T. R. Maret, D. S. Ott

{"title":"Assessment of fish assemblages and minimum sampling effort required to determine botic integrity of large rivers in southern Idaho, 2002","authors":"T. R. Maret, D. S. Ott","doi":"10.3133/WRI034274","DOIUrl":"https://doi.org/10.3133/WRI034274","url":null,"abstract":"Abstract. A critical issue surrounding biomonitoring in large rivers (ﬁfth- through seventh-order) is the minimum sampling-reach distance required to collect an adequate number of ﬁsh to represent the ﬁsh assemblage within a reach. Excessive sampling effort (excessive reach length) is costly in terms of work hours, reduces the number of sites that can be visited, can compromise ﬁeld-crew safety, can be logistically unfeasible, and can cause unnecessary injury to captured ﬁsh. On the other hand, inadequate sampling effort can produce consider-able variability in multiple samples collected at a site and may underrepresent the species or river condition present. During the summer of 2002, the U.S. Geological Survey, in cooperation with the Idaho Department of Environmental Quality, determined the minimum sampling effort required to characterize ﬁsh assemblages at 17 large-river sites in southern Idaho. The study was done as part of the U.S. Environmental Protection Agency’s Environmental Monitoring and Assessment Program. Electroﬁshing methods and multiple gear types were used to collect sample populations of ﬁsh in river reach lengths representing 40 and 100 times the wetted channel width. Minimum sampling effort was assessed by comparing the relation between reach length and the number of species collected, total individuals collected, and ﬁnal Index of Biotic Integrity (IBI) scores. developed speciﬁcally for large Idaho rivers, received scores of less than 50, indicating poor biotic integrity.","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"811 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82642185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Hydrogeologic framework of the North Fork and surrounding areas, Long Island, New York 北福克及周边地区的水文地质框架，长岛，纽约

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI024284

C. Schubert, R. Bova, P. Misut

引用次数: 6

Concentrations of dissolved solids and nutrients in water sources and selected streams of the Santa Ana Basin, California, Octoger 1998 - September 2001 1998年10月至2001年9月，加州圣安娜盆地水源和选定溪流中溶解固体和营养物质的浓度

Water-Resources Investigations Report Pub Date : 2004-01-01 DOI: 10.3133/WRI034326

R. Kent, K. Belitz

引用次数: 12