Suite versus composite statistics
Suite and composite methodologies, two statistically valid approaches for producing statistical descriptive measures, are investigated for sample groups representing a probability distribution where, in addition, each sample is probability distribution. Suite and composite means (first moment measures) are always equivalent. Composite standard...Balsillie, J.H.; Tanner, W.F.
Gaussian statistics for palaeomagnetic vectors
With the aim of treating the statistics of palaeomagnetic directions and intensities jointly and consistently, we represent the mean and the variance of palaeomagnetic vectors, at a particular site and of a particular polarity, by a probability density function in a Cartesian three-space of orthogonal magnetic-field components consisting of a...Love, J.J.; Constable, C.G.
The National Streamflow Statistics Program: A Computer Program for Estimating Streamflow Statistics for Ungaged Sites
The National Streamflow Statistics (NSS) Program is a computer program that should be useful to engineers, hydrologists, and others for planning, management, and design applications. NSS compiles all current U.S. Geological Survey (USGS) regional regression equations for estimating streamflow statistics at ungaged sites in an easy-to-use interface...Ries(compiler), Kernell G.; With sections by Atkins, J. B.; Hummel, P.R.; Gray, Matthew J.; Dusenbury, R.; Jennings, M.E.; Kirby, W.H.; Riggs, H.C.; Sauer, V.B.; Thomas, W.O.
Methods for estimating selected low-flow statistics and development of annual flow-duration statistics for Ohio
This report presents the results of a study to develop methods for estimating selected low-flow statistics and for determining annual flow-duration statistics for Ohio streams. Regression techniques were used to develop equations for estimating 10-year recurrence-interval (10-percent annual-nonexceedance probability) low-flow yields, in cubic feet...Koltun, G.F.; Kula, Stephanie P.
The National Streamflow Statistics Program: Estimating High and Low Streamflow Statistics for Ungaged SitesTurnipseed, D. Phil; Ries, Kernell G.
Selected Streamflow Statistics and Regression Equations for Predicting Statistics at Stream Locations in Monroe County, Pennsylvania
A suite of 28 streamflow statistics, ranging from extreme low to high flows, was computed for 17 continuous-record streamflow-gaging stations and predicted for 20 partial-record stations in Monroe County and contiguous counties in north-eastern Pennsylvania. The predicted statistics for the partial-record stations were based on regression analyses...Thompson, Ronald E.; Hoffman, Scott A.
Statistics of a runoff-precipitation relationMatalas, N.C.
Environmental flow allocation and statistics calculator
The Environmental Flow Allocation and Statistics Calculator (EFASC) is a computer program that calculates hydrologic statistics based on a time series of daily streamflow values. EFASC will calculate statistics for daily streamflow in an input file or will generate synthetic daily flow series from an input file based on rules for allocating and...Konrad, Christopher P.
Probability and statistics for petroleum resource assessmentCrovelli, R.A.
Calculating weighted estimates of peak streamflow statistics
According to the Federal guidelines for flood-frequency estimation, the uncertainty of peak streamflow statistics, such as the 1-percent annual exceedance probability (AEP) flow at a streamgage, can be reduced by combining the at-site estimate with the regional regression estimate to obtain a weighted estimate of the flow statistic. The procedure...Cohn, Timothy A.; Berenbrock, Charles; Kiang, Julie E.; Mason, Jr., Robert R.
Statistics in Oklahoma's petroleum industry, 1980 ( USA).
Using graphs and tables, outlines statistics for oil and gas drilling activity in the state, for discovery and production levels, established reserve quantities, and the market value of hydrocarbons.-L.MartinPrater, M.L.
Applications of statistics to thematic mapping.
Two statistical problems occurring in the effort to analyze thematic maps and mapping are determining the accuracy of thematic content and comparing factors studied in thematic mapping. Statistical procedures applicable to thematic mapping involve sampling, determining accuracy, and comparing factors. A sampling procedure using an unaligned...Rosenfield, G.H.; Melley, M.L.
Daniel Goodman’s empirical approach to Bayesian statistics
Bayesian statistics, in contrast to classical statistics, uses probability to represent uncertainty about the state of knowledge. Bayesian statistics has often been associated with the idea that knowledge is subjective and that a probability distribution represents a personal degree of belief. Dr. Daniel Goodman considered this viewpoint...Gerrodette, Tim; Ward, Eric; Taylor, Rebecca L.; Schwarz, Lisa K.; Eguchi, Tomoharu; Wade, Paul; Himes Boor, Gina
Selected streamflow statistics for streamgage locations in and near Pennsylvania
Comparison of methods for computing streamflow statistics for Pennsylvania streams
Methods for computing streamflow statistics intended for use on ungaged locations on Pennsylvania streams are presented and compared to frequency distributions of gaged streamflow data. The streamflow statistics used in the comparisons include the 7-day 10-year low flow, 50-year flood flow, and the 100-year flood flow; additional statistics are...Ehlke, Marla H.; Reed, Lloyd A.
The use of multivariate statistics in studies of wildlife habitatJohnson, D.H.
A Streamflow Statistics (StreamStats) Web Application for Ohio
A StreamStats Web application was developed for Ohio that implements equations for estimating a variety of streamflow statistics including the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year peak streamflows, mean annual streamflow, mean monthly streamflows, harmonic mean streamflow, and 25th-, 50th-, and 75th-percentile streamflows. StreamStats is a...Koltun, G.F.; Kula, Stephanie P.; Puskas, Barry M.
Record Extension and Streamflow Statistics for the Pleasant River, Maine
Historical streamflow data for the Pleasant River are limited to 11 years (from 1980 to 1991) at the U.S. Geological Survey streamgaging station near Epping. Analysis of these data in conjunction with flow data from other nearby stations indicates that the 11 years of record for the Pleasant River may not be representative of longer-term...Nielsen, Joseph P.
Historical Statistics for Mineral Commodities in the United StatesKelly, Thomas; Buckingham, David; DiFrancesco, Carl A.; Porter, Kenneth E.; Goonan, Thomas G.; Sznopek, John L.; Berry, Cyrus; Crane, Melissa
Equations for estimating selected streamflow statistics in Rhode Island
Regional regression equations were developed for estimating selected natural—unaffected by alteration—streamflows of specific flow durations and low-flow frequency statistics for ungaged stream sites in Rhode Island. Selected at-site streamflow statistics are provided for 41 long-term streamgages, 21 short-term streamgages, and 135...Bent, Gardner C.; Steeves, Peter A.; Waite, Andrew M.