Statistical Associations Between Large Scale Climate Oscillations and Mesoscale Surface Meteorological Variability in the Apalachicola-Chattahoochee-Flint River Basin PDF Download
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Author: Kelly Stevens
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Category :
Languages : en
Pages :
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The oscillations chosen based upon their previously researched associations to climate patterns in the southeastern United States include the global scale Atlantic Multidecadal Oscillation (AMO), North Atlantic Oscillation (NAO), Pacific Decadal Oscillation (PDO), and Southern Oscillation Index (SOI). We apply analysis thresholds to the canonical loadings and cross loadings for the canonical roots extracted at the 95% significance level to display the relational results for two separate tests conducted using CCA. The dependent data set for one test consists of the temperature data and SPI6, while the independent data set consists of all the indices for four seasons, allowing for time-lagged and concurrent relationship discoveries. In this test, the standardized temperature data account for much of the variance explained for the CCA-derived concocted variate, with the strongest canonical relationships occurring during the winter season (DJF).
Author: Kelly Stevens
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ISBN:
Category :
Languages : en
Pages :
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Book Description
The oscillations chosen based upon their previously researched associations to climate patterns in the southeastern United States include the global scale Atlantic Multidecadal Oscillation (AMO), North Atlantic Oscillation (NAO), Pacific Decadal Oscillation (PDO), and Southern Oscillation Index (SOI). We apply analysis thresholds to the canonical loadings and cross loadings for the canonical roots extracted at the 95% significance level to display the relational results for two separate tests conducted using CCA. The dependent data set for one test consists of the temperature data and SPI6, while the independent data set consists of all the indices for four seasons, allowing for time-lagged and concurrent relationship discoveries. In this test, the standardized temperature data account for much of the variance explained for the CCA-derived concocted variate, with the strongest canonical relationships occurring during the winter season (DJF).
Author: Gloria Arrocha
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ISBN:
Category :
Languages : en
Pages : 60
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Author: William G. Nichols
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Category : Apalachicola River (Fla.)
Languages : en
Pages : 228
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"The Apalachicola-Chattahoochee-Flint River (ADF) basin drains portions of Georgia, Alabama and Florida. There are a number of reservoirs in the ACF basin providing flow regulation, water supplies, hydroelectric power, recreation, navigation and fish and wildlife habitat. Additional climatology data are required as input to the study directed at development of an improved water management policy for the ACF basin. This portion of the overall study is directed at providing a general description of weather patterns in the ACF basin, determining the availability of specific climatic data for the basin and providing extensive statistical analysis of precipitation data for the basin."--Page 1.
Author: Nathan Taylor Johnson
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Languages : en
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ABSTRACT: The unimpaired flow data was developed to populate the HEC-5, ACF-STELLA, and more recently Res-Sim models for 23 local inflows at control points throughout the Apalachicola Chattahoochee Flint (ACF) watershed. Unimpaired flows are created when the influence of human regulation and withdrawals are removed from historical streamflow gauge records. Regionally accumulated unimpaired inflows or unimpaired local incremental inflows were developed and routed together through a model in the main channels to form the main channel unimpaired flows. The UIFs are used as inputs into several models where they are routed through a series of diversions, consumption, and water control structure releases. Simulations of policies on the ACF can then be conducted for a variety of operations. This type of model has been used to analyze the impacts of various governance scenarios on the ACF basin and other basins throughout the nation.
Author:
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ISBN:
Category :
Languages : en
Pages : 542
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Author: Caroline M. Elliott
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Category : Aquatic ecology
Languages : en
Pages : 0
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Author: Tracy McCulloch
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Category :
Languages : en
Pages : 102
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Predicting how populations will respond to future climate scenarios is of interest to ecologists and resource managers. Recent interest in the effect large-scale climate patterns have on local environmental conditions has identified relationships between climate, fish diversity, assemblage structure, abundance, and population fluctuations. I hypothesized that large-scale climate patterns could help explain the inter-annual variation in larval fish assemblage of the lower Roanoke River, North Carolina. Acting through temperature and precipitation, these large-scale climate indices can influence ecosystem response, and therefore should correlate with local weather variables. The North Atlantic Oscillation (NAO) and the Atlantic Multi-Decadal Oscillation (AMO) climate indices are known to influence temperature and precipitation in the North Atlantic Ocean basin and were chosen for their likely influence within the lower Roanoke River. Air temperature and precipitation data from Weldon, NC, and Roanoke Rapids, NC, weather stations were used to form a long-term combined (LTC) dataset from 1904 to 2011 to test their relationship with the large-scale climate indices. Relationships between the LTC, NAO, and AMO showed the winter NAO positively significant with four-month winter (December through March) mean maximum air temperatures (r = 0.41, p
Author: Ruth Mathews
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Category : Rivers
Languages : en
Pages : 56
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Author: Wilord Metellus
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Category : Climate change mitigation
Languages : en
Pages : 195
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The concept of Intensity Duration Frequency (IDF) relationship curve presents crucial design contribution for several decades under the assumption of a stationary climate, the frequency and intensity of extreme rainfall nonetheless seemingly increase worldwide. Based on the research conducted in recent years, the greatest increases are likely to occur in short-duration storms lasting less than a day, potentially leading to an increase in the magnitude and frequency of flash floods. The trend analysis of the precipitation influencing the climate variability and extreme rainfall in the state of Florida is conducted in this study. Since these local changes are potentially or directly related to the surrounding oceanic-atmospheric oscillations, the following oscillations are analyzed or highlighted in this study: Atlantic Multi-Decadal Oscillation (AMO), El Niño Southern Oscillation (ENSO), and Pacific Decadal Oscillations (PDO). Collected throughout the state of Florida, the precipitation data from rainfall gages are grouped and analyzed based on type of duration such as short-term duration or minute, in hourly and in daily period. To assess statistical associations based on the ranks of the data, the non-parametric tests Kendall's tau and Spearman's rho correlation coefficient are used to determine the orientation of the trend and ultimately utilize the testing results to determine the statistical significance of the analyzed data. The outcome of the latter confirms with confidence whether there is an increasing or decreasing trend in precipitation depth in the State of Florida. The main emphasis is on the influence of rainfall extremes of short-term duration over a period of about 50 years. Results from both Spearman and Mann-Kendall tests show that the greatest percentage of increase occurs during the short rainfall duration period. The result highlights a tendency of increasing trends in three different regions, two of which are more into the central and peninsula region of Florida and one in the continental region. Given its topography and the nature of its water surface such as the Everglades and the Lake Okeechobee, Florida experience a wide range of weather patterns resulting in frequent flooding during wet season and drought in the dry season.
Author: Donald C. Raney
Publisher:
ISBN:
Category : Apalachicola, Chattahooche and Flint River Basin
Languages : en
Pages : 180
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