{"title":"Characterization of channel substrate, and changes in suspended-sediment transport and channel geometry in white sturgeon spawning habitat in the Kootenai River near Bonners Ferry, Idaho, following the closure of Libby Dam","authors":"G. J. Barton","doi":"10.3133/WRI034324","DOIUrl":"https://doi.org/10.3133/WRI034324","url":null,"abstract":"","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90493803","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}
{"title":"Sediment characteristics and configuration within the Otsego City Dam impoundment on the Kalamazoo River, Michigan, 2001-02","authors":"S. J. Rheaume, D. L. Hubbell, C. M. Rachol, A. Simard, L. M. Fuller","doi":"10.3133/WRI034218","DOIUrl":"https://doi.org/10.3133/WRI034218","url":null,"abstract":".........................................................................................................................................................","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90578787","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}
{"title":"Hydrogeology and simulation of regional ground-water-level declines in Monroe County, Michigan","authors":"H. Reeves, Kirsten V. Wright, J. Nicholas","doi":"10.3133/WRI20034312","DOIUrl":"https://doi.org/10.3133/WRI20034312","url":null,"abstract":"","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80449730","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}
{"title":"Hydrology of the unconfined Kirkwood-Cohansey aquifer system, Forked River and Cedar, Oyster, Mill, Westecunk, and Tuckerton Creek Basins and adjacent basins in the southern Ocean County area, New Jersey, 1998-99","authors":"A. Gordon","doi":"10.3133/WRI034337","DOIUrl":"https://doi.org/10.3133/WRI034337","url":null,"abstract":"","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88988439","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}
{"title":"Methods for estimating flood frequency in Montana based on data through water year 1998","authors":"C. Parrett, D. R. Johnson","doi":"10.3133/WRI034308","DOIUrl":"https://doi.org/10.3133/WRI034308","url":null,"abstract":"","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82174287","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}
The RORA computer program for estimating recharge is based on a condition in which ground water flows perpendicular to the nearest stream that receives ground-water discharge. The method, therefore, does not explicitly account for the groundwater-flow component that is parallel to the stream. Hypothetical finite-difference simulations are used to demonstrate effects of complex flow conditions that consist of two components: one that is perpendicular to the stream and one that is parallel to the stream. Results of the simulations indicate that the RORA program can be used if certain constraints are applied in the estimation of the recession index, an input variable to the program. These constraints apply to a mathematical formulation based on aquifer properties, recession of ground-water levels, and recession of streamflow. Introduction The RORA computer program estimates recharge to the water table on the basis of daily streamflow (Rutledge, 1998; 2000). The program is intended for analysis of a ground-water-flow system driven by diffuse areal recharge to the water table and by ground-water discharge to a gaining stream. When the program is used, regulation and diversion of streamflow should be negligible. The formulations that RORA uses are derived from a crosssectional-flow model that calculates ground-water discharge per unit of stream length on the basis of designated transmissivity, storage coefficient, distance from the stream to the hydrologic divide, and increase in head caused by recharge to the groundwater system (Rorabaugh, 1964, p. 433). The program is based on simple geometry, as illustrated in figure 1A, which represents a segment of a basin. The bold line on the left border represents the stream, and the right border represents the hydrologic divide. Because the stream extends along the length of the model, and because its altitude is uniform, the direction of ground-water flow is one-dimensional and perpendicular to the stream. A finite-difference-flow model, MODFLOW-96, then is used to generate the hydrographs of ground-water level and ground-water discharge to the stream (fig. 1B, details about this simulation are given in “Finite-Difference Simulation Design”). Before applying RORA, the user must designate the recession index (K). The input variable K is a measure of the time required for ground-water discharge to recede by one log cycle when the recession becomes linear (or nearly linear) on the semilog hydrograph. In the ideal model (fig. 1), K can be determined from the following equation, which is derived from Rorabaugh and Simons (1966, p. 12) as: (1) K 0.933a 2S T ---------------------= Use of RORA for Complex Ground-Water Flow Conditions U.S. Geological Survey Water Resources Investigation Report 03-4304 Figure 1. (A) Finite-difference-flow model (plan view) and (B) simulated flow to drains and simulated ground-water level. (Water levels are shown for the finite-difference cell in the middle of the model.) A B
用于估计补给的RORA计算机程序是基于地下水垂直于最近的接收地下水排放的溪流的条件。因此，该方法并没有明确地考虑与河流平行的地下水流动成分。假设的有限差分模拟用于演示由两个组成部分组成的复杂流动条件的影响:一个垂直于流，一个平行于流。仿真结果表明，如果在估计RORA程序的输入变量衰退指数时施加一定的约束，RORA程序是可以使用的。这些约束适用于基于含水层性质、地下水位衰退和水流衰退的数学公式。RORA计算机程序根据每日流量估算地下水位的补给(Rutledge, 1998;2000)。该程序旨在分析地下水流动系统，该系统由扩散区域补给到地下水位和地下水排放到获取流驱动。当程序使用时，流量的调节和导流应忽略不计。RORA使用的公式来源于横断面流模型，该模型根据指定的透射率、储存系数、从溪流到水文分水岭的距离以及地下水系统补给引起的水头增加来计算每单位溪流长度的地下水排放量(Rorabaugh, 1964, p. 433)。该方案基于简单的几何结构，如图1A所示，它代表了盆地的一部分。左边边界的粗线代表河流，右边边界代表水文分界线。由于水流沿着模型的长度延伸，并且由于其高度是均匀的，所以地下水的流动方向是一维的，并且垂直于水流。然后使用有限差分流模型MODFLOW-96生成地下水位和地下水流向河流的水文曲线(图1B，具体模拟请参见“有限差分模拟设计”)。在应用RORA之前，用户必须指定衰退指数(K)。输入变量K是当衰退在半对数线上变为线性(或接近线性)时，地下水排放减少一个对数周期所需时间的度量。在理想模型(图1)中，K可由以下公式确定，该公式由Rorabaugh和Simons (1966, p. 12)导出为:(1)K 0.933a 2S T ---------------------=在复杂地下水流动条件下使用RORA美国地质调查局水资源调查报告03-4304图1。(A)有限差分流模型(平面视图)和(B)模拟排水管流量和模拟地下水位。(模型中间的有限差分单元显示了水位。)一个B
{"title":"Use of RORA for Complex Ground-Water Flow Conditions","authors":"A. Rutledge","doi":"10.3133/WRI034304","DOIUrl":"https://doi.org/10.3133/WRI034304","url":null,"abstract":"The RORA computer program for estimating recharge is based on a condition in which ground water flows perpendicular to the nearest stream that receives ground-water discharge. The method, therefore, does not explicitly account for the groundwater-flow component that is parallel to the stream. Hypothetical finite-difference simulations are used to demonstrate effects of complex flow conditions that consist of two components: one that is perpendicular to the stream and one that is parallel to the stream. Results of the simulations indicate that the RORA program can be used if certain constraints are applied in the estimation of the recession index, an input variable to the program. These constraints apply to a mathematical formulation based on aquifer properties, recession of ground-water levels, and recession of streamflow. Introduction The RORA computer program estimates recharge to the water table on the basis of daily streamflow (Rutledge, 1998; 2000). The program is intended for analysis of a ground-water-flow system driven by diffuse areal recharge to the water table and by ground-water discharge to a gaining stream. When the program is used, regulation and diversion of streamflow should be negligible. The formulations that RORA uses are derived from a crosssectional-flow model that calculates ground-water discharge per unit of stream length on the basis of designated transmissivity, storage coefficient, distance from the stream to the hydrologic divide, and increase in head caused by recharge to the groundwater system (Rorabaugh, 1964, p. 433). The program is based on simple geometry, as illustrated in figure 1A, which represents a segment of a basin. The bold line on the left border represents the stream, and the right border represents the hydrologic divide. Because the stream extends along the length of the model, and because its altitude is uniform, the direction of ground-water flow is one-dimensional and perpendicular to the stream. A finite-difference-flow model, MODFLOW-96, then is used to generate the hydrographs of ground-water level and ground-water discharge to the stream (fig. 1B, details about this simulation are given in “Finite-Difference Simulation Design”). Before applying RORA, the user must designate the recession index (K). The input variable K is a measure of the time required for ground-water discharge to recede by one log cycle when the recession becomes linear (or nearly linear) on the semilog hydrograph. In the ideal model (fig. 1), K can be determined from the following equation, which is derived from Rorabaugh and Simons (1966, p. 12) as: (1) K 0.933a 2S T ---------------------= Use of RORA for Complex Ground-Water Flow Conditions U.S. Geological Survey Water Resources Investigation Report 03-4304 Figure 1. (A) Finite-difference-flow model (plan view) and (B) simulated flow to drains and simulated ground-water level. (Water levels are shown for the finite-difference cell in the middle of the model.) A B","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84740464","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}
M. T. Moreo, K. Halford, R. J. LaCamera, R. J. Laczniak
Ground-water withdrawals from 1913 through 1998 from the Death Valley regional flow system have been compiled to support a regional,three-dimensional, transient ground-water flow model. Withdrawal locations and depths of production intervals were estimated and associated errors were reported for 9,300 wells. Withdrawals were grouped into three categories: mining, public-supply, and commercial water use; domestic water use; and irrigation water use. In this report, groupings were based on the method used to estimate pumpage. Cumulative ground-water withdrawals from 1913 through 1998 totaled 3 million acre-feet, most of which was used to irrigate alfalfa. Annual withdrawal for irrigation ranged from 80 to almost 100 percent of the total pumpage. About 75,000 acre-feet was withdrawn for irrigation in 1998. Annual irrigation withdrawals generally were estimated as the product of irrigated acreage and application rate. About 320 fields totaling 11,000 acres were identified in six hydrographic areas. Annual application rates for high water-use crops ranged from 5 feet in Penoyer Valley to 9 feet in Pahrump Valley. The uncertainty in the estimates of ground-water withdrawals was attributed primarily to the uncertainty of application rate estimates. Annual ground-water withdrawal was estimated at about 90,000 acre-feet in 1998 with an assigned uncertainty bounded by 60,000 to more » 130,000 acre-feet. « less
{"title":"Estimated Ground-water Withdrawals From the Death Valley Regional Flow System, Nevada and California, 1913-98","authors":"M. T. Moreo, K. Halford, R. J. LaCamera, R. J. Laczniak","doi":"10.2172/816939","DOIUrl":"https://doi.org/10.2172/816939","url":null,"abstract":"Ground-water withdrawals from 1913 through 1998 from the Death Valley regional flow system have been compiled to support a regional,three-dimensional, transient ground-water flow model. Withdrawal locations and depths of production intervals were estimated and associated errors were reported for 9,300 wells. Withdrawals were grouped into three categories: mining, public-supply, and commercial water use; domestic water use; and irrigation water use. In this report, groupings were based on the method used to estimate pumpage. Cumulative ground-water withdrawals from 1913 through 1998 totaled 3 million acre-feet, most of which was used to irrigate alfalfa. Annual withdrawal for irrigation ranged from 80 to almost 100 percent of the total pumpage. About 75,000 acre-feet was withdrawn for irrigation in 1998. Annual irrigation withdrawals generally were estimated as the product of irrigated acreage and application rate. About 320 fields totaling 11,000 acres were identified in six hydrographic areas. Annual application rates for high water-use crops ranged from 5 feet in Penoyer Valley to 9 feet in Pahrump Valley. The uncertainty in the estimates of ground-water withdrawals was attributed primarily to the uncertainty of application rate estimates. Annual ground-water withdrawal was estimated at about 90,000 acre-feet in 1998 with an assigned uncertainty bounded by 60,000 to more » 130,000 acre-feet. « less","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2003-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86614214","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}
{"title":"MAIN-CHANNEL SLOPES OF SELECTED STREAMS IN IOWA FOR ESTIMATION OF FLOOD-FREQUENCY DISCHARGES","authors":"D. Eash","doi":"10.3133/WRI034120","DOIUrl":"https://doi.org/10.3133/WRI034120","url":null,"abstract":"............................................................^","PeriodicalId":23603,"journal":{"name":"Water-Resources Investigations Report","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2003-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78903101","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：