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Author: Marc Perlin Publisher: ISBN: Category : Analysis of variance Languages : en Pages : 64
Book Description
This report presents results of a study conducted to determine the variability of obsrvations made simultaneously by several different observers, to compare those observations with instrument measurements when available, and to look at the temporal variation of observed littoral conditions over a 25-hour period. Littoral Environment Observations (LEO) taken by individual observers were compared with the means of the observations obtained by all observers and with instrument-recorded data when available for a particular variable. Statistical analyses were performed for the different LEO variables to determine the following: (a) confidence intervals; (b) Correlation coefficients; (c) Standard deviations; (d) Consistency between observer and gage; (e) Effect of tides on estimation of parameters (i.e., did the estimates depend on the distance between observer and waves?); (f) The statistical wave height to which LEO wave heights should be compared. The field experiment was conducted at Duck, North Carolina, at the Field Research Facility (FRF) of the Coastal Engineering Research Center on 15-16 August 1978. Six observers simultaneously recorded hourly LEO observations. Concurrent wave measurements were made from the FRF pier with gages and radar.
Author: Marc Perlin Publisher: ISBN: Category : Analysis of variance Languages : en Pages : 64
Book Description
This report presents results of a study conducted to determine the variability of obsrvations made simultaneously by several different observers, to compare those observations with instrument measurements when available, and to look at the temporal variation of observed littoral conditions over a 25-hour period. Littoral Environment Observations (LEO) taken by individual observers were compared with the means of the observations obtained by all observers and with instrument-recorded data when available for a particular variable. Statistical analyses were performed for the different LEO variables to determine the following: (a) confidence intervals; (b) Correlation coefficients; (c) Standard deviations; (d) Consistency between observer and gage; (e) Effect of tides on estimation of parameters (i.e., did the estimates depend on the distance between observer and waves?); (f) The statistical wave height to which LEO wave heights should be compared. The field experiment was conducted at Duck, North Carolina, at the Field Research Facility (FRF) of the Coastal Engineering Research Center on 15-16 August 1978. Six observers simultaneously recorded hourly LEO observations. Concurrent wave measurements were made from the FRF pier with gages and radar.
Author: United States. Army. Corps of Engineers. Task Force on Shore Protection Publisher: ISBN: Category : Shore protection Languages : en Pages : 894
Author: R. J. Uncles Publisher: Cambridge University Press ISBN: 1108508723 Category : Nature Languages : en Pages : 363
Book Description
A practical guide to the latest remote and in situ techniques used to measure sediments, quantify seabed characteristics, and understand physical properties of water and sediments and transport mechanisms in estuaries and coastal waters. Covering a broad range of topics from global reference frames and bathymetric surveying methods to the use of remote sensing for determining surface-water variables, enough background is included to explain how each technology functions. The advantages and disadvantages of each technology are explained, and a review of recent fieldwork experiments demonstrates how modern methods apply in real-life estuarine and coastal campaigns. Clear explanations of physical processes show links between different disciplines, making the book ideal for students and researchers in the environmental sciences, marine biology, chemistry and geology, whose work relies on an understanding of the physical environment and the way it is changing as a result of climate change, engineering and other influences.
Author: Publisher: ISBN: Category : Research Languages : en Pages : 966
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Author: Marc Perlin
Author: Marc Perlin
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Author: United States. Army. Corps of Engineers. Task Force on Shore Protection
Author: U.S. Army Engineer Waterways Experiment Station
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Author: R. J. Uncles
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Author: Carl F. Jenkins