Download or read book National Handbook of Recommended Methods for Water data Acquisition written by Geological Survey (U.S.). Office of Water Data Coordination and published by . This book was released on 1977 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Determining Flood Flow Frequency written by and published by . This book was released on 1981 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of Information on Water Data written by Geological Survey (U.S.). Office of Water Data Coordination and published by . This book was released on 1979 with total page 1374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Water Data for Water Year written by and published by . This book was released on 1995 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Water Conditions written by and published by . This book was released on 1983-04 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Techniques for Tidal Datums Handbook written by and published by . This book was released on 2003 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of Information on Water Data written by and published by . This book was released on 1979 with total page 1056 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Water Data for Central District Water Year written by and published by . This book was released on 1995 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Data for Metropolitan Areas written by and published by . This book was released on 1968 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tide Tables United States and Foreign Ports Including Data on Currents written by U.S. Coast and Geodetic Survey and published by . This book was released on 1920 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extreme Water Levels of the United States 1893 2010 written by Chris Eugene Zervas and published by . This book was released on 2013 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Extreme monthly highest and lowest water levels at 112 long-term stations of the National Water Level Observation Network (NWLON) operated by the Center for Operational Oceanographic Products and Services (CO-OPS) are analyzed to quantify probabilities of exceedance and the return periods of extreme events. All data through 2010 are used from stations on the U.S. Atlantic and Pacific coasts, the Gulf of Mexico, Hawaii, Alaska, and islands in the Pacific and Atlantic Oceans. Since there are statistically significant trends in the data, the values are linearly detrended using the mean sea level trend (or the mean high or low water trend in a few cases) prior to analysis. A set of the annual maxima and annual minima are then derived for each station. The Generalized Extreme Value (GEV) approach was chosen to characterize the distribution of extreme values of a long-term water level time series. A GEV distribution is fitted to each station’s annual maxima or minima by solving for the location, scale, and shape parameters. The solution defines an exceedance probability curve and its 95% confidence interval as a function of the return period, which is the average length of time between exceedances of a given extreme water level. The shapes of the derived GEV curves show large variations at the longer return periods depending on whether the GEV shape parameter is positive (the curve rises sharply) or negative (the curve flattens out). A positive shape parameter indicates a distribution with a higher probability of a rare event in the extreme tail of the distribution. A GEV curve with a positive shape parameter also has much wider 95% confidence intervals than one with a negative shape parameter. The stations with occasional large hurricane storm tides in the data generally have positive shape parameters. Stations on coasts that do not experience hurricanes generally have GEV curves which flatten out at longer return periods and have narrow 95% confidence intervals at the longer return periods. In the Appendices, the GEV exceedance levels for each station are displayed as a set of plots showing their relationship with the observed annual maxima or minima versus return period, with the tidal and geodetic datums as a stick diagram relative to mean sea level, and with the observed monthly highest and lowest water levels versus time. Extreme events which exceeded the 0.01 exceedance probability level, which can be considered as a 100-year event, are identified. The monthly data are also separated into sets of the highest and the lowest water levels for each month of the year. A GEV analysis is then performed on each of the 24 subsets to show how the likelihood of exceedance changes seasonally. Hurricane Sandy struck the coast of New Jersey in October 2012. Its peak water level at The Battery was over a meter higher than any previously recorded water level. Levels reached at Bridgeport and Sandy Hook (before the station was destroyed) were also far above previous records. As a result, the GEV exceedance probability levels for high water levels at these three stations were recalculated and the results are discussed in Appendix VIII"--Executive Summary.
Download or read book Water Resources Data written by and published by . This book was released on 2003 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preliminary Evaluation of the Ground water Data Network in Indiana written by James R. Marie and published by . This book was released on 1976 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statistical Methods in Water Resources written by D.R. Helsel and published by Elsevier. This book was released on 1993-03-03 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data on water quality and other environmental issues are being collected at an ever-increasing rate. In the past, however, the techniques used by scientists to interpret this data have not progressed as quickly. This is a book of modern statistical methods for analysis of practical problems in water quality and water resources. The last fifteen years have seen major advances in the fields of exploratory data analysis (EDA) and robust statistical methods. The 'real-life' characteristics of environmental data tend to drive analysis towards the use of these methods. These advances are presented in a practical and relevant format. Alternate methods are compared, highlighting the strengths and weaknesses of each as applied to environmental data. Techniques for trend analysis and dealing with water below the detection limit are topics covered, which are of great interest to consultants in water-quality and hydrology, scientists in state, provincial and federal water resources, and geological survey agencies. The practising water resources scientist will find the worked examples using actual field data from case studies of environmental problems, of real value. Exercises at the end of each chapter enable the mechanics of the methodological process to be fully understood, with data sets included on diskette for easy use. The result is a book that is both up-to-date and immediately relevant to ongoing work in the environmental and water sciences.
Download or read book Water Resources Data for New York written by and published by . This book was released on 1976 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tidal and River Datums in the Sacramento River written by Fred Carl Zeile and published by . This book was released on 1979 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water level Data from Observation Wells in the Southern High Plains of Texas written by Sam W. Gammon and published by . This book was released on 1966 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
