The use of numerical weather prediction (NWP) has brought significant improvements to severe weather outbreak forecasting; however, determination of the primary mode of severe weather (in particular tornadic and nontornadic outbreaks) continues to be a challenge. Uncertainty in model runs contributes to forecasting difficulty; therefore it is beneficial to a forecaster to understand the sources and magnitude of uncertainty in a severe weather forecast. This research examines the impact of data assimilation, microphysics parameterizations, and planetary boundary layer (PBL) physics parameterizations on severe weather forecast accuracy and model variability, both at a mesoscale and synoptic-scale level. NWP model simulations of twenty United States tornadic and twenty nontornadic outbreaks are generated. In the first research phase, each case is modeled with three different modes of data assimilation and a control. In the second phase, each event is modeled with 15 combinations of physics parameterizations: five microphysics and three PBL, all of which were designed to perform well in convective weather situations. A learning machine technique known as a support vector machine (SVM) is used to predict outbreak mode for each run for both the data assimilated model simulations and the different parameterization simulations. Parameters determined to be significant for outbreak discrimination are extracted from the model simulations and input to the SVM, which issues a diagnosis of outbreak type (tornadic or nontornadic) for each model run. In the third phase, standard synoptic parameters are extracted from the model simulations and a k-means cluster analysis is performed on tornadic and nontornadic outbreak data sets to generate synoptically distinct clusters representing atmospheric conditions found in each type of outbreak. Variations among the synoptic features in each cluster are examined across the varied physics parameterization and data assimilation runs. Phase I found that conventional and HIRS-4 radiance assimilation performs best of all examined assimilation variations by lowering false alarm ratios relative to other runs. Phase II found that the selection of PBL physics produces greater spread in the SVM classification ability. Phase III found that data assimilation generates greater model changes in the strength of synoptic-scale features than either microphysics or PBL physics parameterization.

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Evangelicals have been characterized as a people committed to the Bible with historical roots to the fundamentalists who were engaged in controversy with liberals in North America at the beginning of the twentieth century. Harold Lindsell's book, The Battle For The Bible (1976), led to a great deal of discussion about inerrancy among evangelicals which resulted in major conferences and the publication of a number of books and articles discussing inerrancy in the subsequent decade. The principal doctrinal statement of the Evangelical Theological Society (ETS) has been from its inception a statement on inerrancy. The inerrancy debate among evangelicals took a new direction with the publication of R H Gundry's commentary on Matthew (1982). This sparked a debate concerning redaction criticism and the compatibility of using the historical-critical methodology while maintaining a commitment to the doctrine of inerrancy. Just when the debate appeared to be dying down the publication of the results of the Jesus Seminar (1993) led to several responses from evangelicals. The most controversial publication was The Jesus Crisis (1998) which accused evangelicals and some within the ETS of embracing the same methodology as those of the Jesus Seminar, refueling the debate again. Consequently this debate amongst evangelicals, particularly those associated with the ETS has continued for almost two decades. The debate has ranged over a variety of issues related to historical criticism and the study of the Gospels, including presuppositions, the Synoptic Problem, the role of harmonization, and whether the Gospels provide a strict chronology of the life of Jesus. The role of form and tradition criticism and the criteria of authenticity and whether the Gospel writers were faithful historians or creative theologians have also been points of contention in the debate. The languages that Jesus spoke and whether the Gospels preserve the ipsissima verba or vox have highlighted the differing views about the requirements of inerrancy. The redaction criticism debate has proven to have a significant role in exposing differences in methodology, definitions, presuppositions, and boundaries among evangelicals and members of the ETS. / New Testament / D.Th. (New Testament)

Evangelicals have been characterized as a people committed to the Bible with historical roots to the fundamentalists who were engaged in controversy with liberals in North America at the beginning of the twentieth century. Harold Lindsell's book, The Battle For The Bible (1976), led to a great deal of discussion about inerrancy among evangelicals which resulted in major conferences and the publication of a number of books and articles discussing inerrancy in the subsequent decade. The principal doctrinal statement of the Evangelical Theological Society (ETS) has been from its inception a statement on inerrancy. The inerrancy debate among evangelicals took a new direction with the publication of R H Gundry's commentary on Matthew (1982). This sparked a debate concerning redaction criticism and the compatibility of using the historical-critical methodology while maintaining a commitment to the doctrine of inerrancy. Just when the debate appeared to be dying down the publication of the results of the Jesus Seminar (1993) led to several responses from evangelicals. The most controversial publication was The Jesus Crisis (1998) which accused evangelicals and some within the ETS of embracing the same methodology as those of the Jesus Seminar, refueling the debate again. Consequently this debate amongst evangelicals, particularly those associated with the ETS has continued for almost two decades. The debate has ranged over a variety of issues related to historical criticism and the study of the Gospels, including presuppositions, the Synoptic Problem, the role of harmonization, and whether the Gospels provide a strict chronology of the life of Jesus. The role of form and tradition criticism and the criteria of authenticity and whether the Gospel writers were faithful historians or creative theologians have also been points of contention in the debate. The languages that Jesus spoke and whether the Gospels preserve the ipsissima verba or vox have highlighted the differing views about the requirements of inerrancy. The redaction criticism debate has proven to have a significant role in exposing differences in methodology, definitions, presuppositions, and boundaries among evangelicals and members of the ETS. / New Testament / D.Th. (New Testament)

Anyone familiar with the Rastafari movement and its connection with the Bible is struck by the prevalence of I-locution found in them both. Because the phenomenon is important in the canonical Testaments, more so the New, this study seeks to investigate its significance in certain epistolary pieces (Romans 7 :14-25 ; 15 :14-33), the bio-Narratives and the Apocalypse, in their historical and cultural milieu. The next stage of the investigation then compares the findings of the aforementioned New Testament books with corresponding statements of the Rasta community to determine their relevance for the ongoing Anglophone theological discussion. In this connection, the following questions are addressed: (1) what are the inter-textual link(s) and function(s) of the `I' statements in Romans? (2) How do they relate to similar dominical sayings? And (3) can any parallel be established between the language of Rastafari and these? In sum, the study seeks to bring into critical dialogue the permutative `I' of the NT with the self-understanding of Rastafari. / NEW TESTAMENT / DTH (NEW TESTAMENT)

Approved for public release; distribution in unlimited. / On day five of combat operations during Operation IRAQI FREEDOM, advances by coalition forces were nearly halted by a dust storm, initiated by the passage of a synoptically driven cold front. This storm impacted ground and air operations across the entire Area of Responsibility, and delayed an impending ground attack on the Iraqi capital. Military meteorologists were able to assist military planners in mitigating at least some of the effects of this storm. This thesis examines the synoptic conditions leading to the severe dust storm, evaluates the numerical weather prediction model performance in predicting the event, and reviews metrics pertaining to the overall impacts on the Operation IRAQI FREEDOM combined air campaign. In general, the numerical model guidance correctly predicted the location and onset of the dust storms on 25 March, 2003. As a result of this forecast guidance, mission planners were able to front load Air Tasking Orders with extra sorties prior to the onset of the dust storm, and were able to make changes to planned weapons loads, favoring GPS-guided munitions. / Captain, United States Air Force

Η συνοπτική ταξινόμηση των συστημάτων καιρού αφορά πληθώρα περιβαλλοντικών εφαρμογών. Προσφάτως, η γνωστική περιοχή για την οποία η συνοπτική ταξινόμηση έχει βαρύνουσα σημασία είναι αυτή της ατμοσφαιρικής ρύπανσης. Η γνώση της συνοπτικής κλιματολογίας μιας περιοχής, επιτρέπει την πρόγνωση και ενδεχομένως την αποφυγή επεισοδίων ρύπανσης, τα οποία οφείλονται είτε σε τοπικές πηγές είτε στην μεταφορά ρύπων. Η γνώση αυτή ενισχύεται σημαντικά μέσω της κατηγοριοποίησης (ταξινόμησης) των συνοπτικών καταστάσεων που επικρατούν σε μία δεδομένη περιοχή. Τα τελευταία χρόνια έχουν γίνει προσπάθειες «αυτόματης», μη εμπειρικής, ταξινόμησης με την χρήση Η/Υ. Οι μέχρι τώρα προσπάθειες επικεντρώνονται σε κλασικές στατιστικές μεθόδους. Σκοπός αυτής της διδακτορικής διατριβής είναι η ανάπτυξη μεθόδων και η υλοποίηση αλγορίθμων για την εξαγωγή και ψηφιακή επεξεργασία περιβαλλοντικών σημάτων και εικόνων. Η εφαρμογή των ανωτέρω οδηγεί στη δημιουργία έμπειρων συστημάτων συνοπτικής ταξινόμησης των συστημάτων καιρού, η οποία βασίζεται σε μεθόδους επεξεργασίας εικόνας, ανάλυσης και ομαδοποίησης δεδομένων, αναγνώρισης προτύπων και θεωρίας γράφων. Η σκοπιμότητα της παρούσης έρευνας διαφαίνεται από τη πρωτοτυπία που παρουσιάζει, η οποία έγκειται στο γεγονός ότι οι τεχνικές που παρουσιάζονται και που έχουν αντιμετωπίσει επιτυχώς σειρά προβλημάτων ταξινόμησης σε διάφορους γνωστικούς τομείς, εφαρμόζονται για πρώτη φορά στην Ελλάδα σε θέματα Μετεωρολογίας-Κλιματολογίας-Φυσικής του Περιβάλλοντος και συγκεκριμένα για την συνοπτική ταξινόμηση των συστημάτων καιρού. Τα χαρακτηριστικά των σύγχρονων μεθόδων επεξεργασίας εικόνας, θεωρίας γράφων και ανάλυσης δεδομένων, καθιστούν τις προτεινόμενες προσεγγίσεις αυτής της διατριβής ανταγωνιστικές τόσο σε επίπεδο ποιότητας ταξινόμησης όσο και σε υπολογιστικό χρόνο. / The synoptic classification of weather systems involves a variety of environmental applications. Recently, the synoptic classification has been found to be relevant with the cognitive area of air pollution. Knowing the synoptic climatology of a region, allows the prediction and possibly the prevention of pollution incidents, resulting in either local sources or in transport of pollutants. This knowledge is greatly enhanced by the categorization (classification) of the synoptic conditions in a given area. In recent years ‘automatic’, non-empirical, classification methods have been developed using computers. So far these efforts have been based on classical statistical methods. The aim of this PhD thesis is the development of methods and the implementation of algorithms to extract and process digital signals and environmental images. Consequently, expert systems for the synoptic classification of weather systems are created based on methods relative to image processing, data analysis and clustering, pattern recognition and graph theory. The objective of this research is demonstrated by its own originality which lies in the fact that the presented techniques have successfully addressed a number of classification problems in different topics. It is the first time that such methods have been applied on Meteorology-Climatology-Physics of the Environment in Greece, namely the synoptic classification of weather systems. The characteristics of the modern methods proposed in this PhD thesis are competitive both in classification quality and in computational time.