Evaluating Multi-step System Forecasts with Relatively Few Forecast-error Observations

Evaluating Multi-step System Forecasts with Relatively Few Forecast-error Observations PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Evaluating Multi-step System Forecasts with Relatively Few Forecast-error Observations

Evaluating Multi-step System Forecasts with Relatively Few Forecast-error Observations PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


The Palgrave Handbook of Government Budget Forecasting

The Palgrave Handbook of Government Budget Forecasting PDF Author: Daniel Williams
Publisher: Springer Nature
ISBN: 3030181952
Category : Business & Economics
Languages : en
Pages : 448

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Book Description
This Handbook is a comprehensive anthology of up-to-date chapters contributed by current researchers in budget forecasting. Editors Daniel Williams and Thad Calabrese had previously found substantial deficiencies in public budgeting forecast literature with current research failing to address such matters as practices related to forecasting expenditure factors, the consequences of forecast bias, or empirical examination of the effectiveness of many deterministic methods actually used by many governments. This volume comprehensively addresses the state of knowledge about budget forecasting for practitioners, academics, and students and serves as a comprehensive resource for instruction alongside serving as a reference book for those engaged in budget forecasting practice.

The Palgrave Companion to Oxford Economics

The Palgrave Companion to Oxford Economics PDF Author: Robert A. Cord
Publisher: Springer Nature
ISBN: 3030584712
Category : Business & Economics
Languages : en
Pages : 800

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Book Description
The University of Oxford has been and continues to be one of the most important global centres for economics. With six chapters on themes in Oxford economics and 24 chapters on the lives and work of Oxford economists, this volume shows how economics became established at the University, how it produced some of the world’s best-known economists, including Francis Ysidro Edgeworth, Roy Harrod and David Hendry, and how it remains a global force for the very best in teaching and research in economics. With original contributions from a stellar cast, this volume provides economists – especially those interested in macroeconomics and the history of economic thought – with the first in-depth analysis of Oxford economics.

Past and Present Variability of the Solar-terrestrial System

Past and Present Variability of the Solar-terrestrial System PDF Author: Giuliana Cini Castagnoli
Publisher: IOS Press
ISBN: 9789051993585
Category : Juvenile Nonfiction
Languages : en
Pages : 528

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Book Description
The global climate of the Earth has significantly varied over the last millennia. On a regional scale, the climate has varied and does presently vary on many different time scales, leading to a continuously changing pattern of temperatures, humidity, precipitation, with important effects on the whole terrestrial biosphere. Physicist are interested in understanding the mechanism at work by gathering data and properly analysing them, by building theoretical models and, if possible, making predictions on the future evolution of the system. Along these lines, an important question is to understand the role of the solar forcing, in order to unravel the internal mechanisms of variability of the Earth's climate from the variable forcing of the Sun. On the other hand, one can learn about the past solar variability by reading into the terrestrial archives that provide us with proxy data on the history of both the Sun and the climate. Thus, realizing that the Sun and the Earth form a closely coupled system, where the variable properties of the former may affect in many subtle ways the behaviour of the latter, is an important step toward the understanding of both.This book is explicitly devoted to these issues. First, it is important to obtain reliable data from terrestrial archives, and to properly date the records that have been measured. The first part of the book is devoted to these crucial aspects, dealing with various types of proxy data and with the difficult issue of the dating of the records. Once obtained, the data has to be interpreted. This process nowadays relies upon a plethora of data analysis methods that explicitly take into account the nonlinear nature of the system and try to elucidate the dynamics and the main processes active in the measured system. The second part of the book is devoted to the issue of data analysis and prediction. Finally, once the data has been interpreted and analyzed, theoretical models have to be built describing the dynamics of the system considered. Due to the extreme complexity of the Sun/Earth system (as well as of its components, the Sun itself and the Earth's climate), drastic simplifications in the modelling efforts have to be accepted and one has to bear in mind that the models probably are nothing more than a pale image of the real dynamics. The third part of the book is devoted to the theoretical and numerical modelling of the solar and climatic variability, and of their complex interactions. This volume gives an up-to-date view of the present state of this field.

Decision-support Experiments and Evaluations Using Seasonal-to-interannual Forecasts and Observational Data

Decision-support Experiments and Evaluations Using Seasonal-to-interannual Forecasts and Observational Data PDF Author: Nancy Kay Beller-Simms
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 208

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Improving Flood Prediction Assimilating Uncertain Crowdsourced Data into Hydrologic and Hydraulic Models

Improving Flood Prediction Assimilating Uncertain Crowdsourced Data into Hydrologic and Hydraulic Models PDF Author: Maurizio Mazzoleni
Publisher: CRC Press
ISBN: 135164646X
Category : Science
Languages : en
Pages : 180

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Book Description
In recent years, the continued technological advances have led to the spread of low-cost sensors and devices supporting crowdsourcing as a way to obtain observations of hydrological variables in a more distributed way than the classic static physical sensors. The main advantage of using these type of sensors is that they can be used not only by technicians but also by regular citizens. However, due to their relatively low reliability and varying accuracy in time and space, crowdsourced observations have not been widely integrated in hydrological and/or hydraulic models for flood forecasting applications. Instead, they have generally been used to validate model results against observations, in post-event analyses. This research aims to investigate the benefits of assimilating the crowdsourced observations, coming from a distributed network of heterogeneous physical and social (static and dynamic) sensors, within hydrological and hydraulic models, in order to improve flood forecasting. The results of this study demonstrate that crowdsourced observations can significantly improve flood prediction if properly integrated in hydrological and hydraulic models. This study provides technological support to citizen observatories of water, in which citizens not only can play an active role in information capturing, evaluation and communication, leading to improved model forecasts and better flood management.

Data Assimilation for the Earth System

Data Assimilation for the Earth System PDF Author: Richard Swinbank
Publisher: Springer Science & Business Media
ISBN: 9401000298
Category : Technology & Engineering
Languages : en
Pages : 377

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Book Description
Data assimilation is the combination of information from observations and models of a particular physical system in order to get the best possible estimate of the state of that system. The technique has wide applications across a range of earth sciences, a major application being the production of operational weather forecasts. Others include oceanography, atmospheric chemistry, climate studies, and hydrology. Data Assimilation for the Earth System is a comprehensive survey of both the theory of data assimilation and its application in a range of earth system sciences. Data assimilation is a key technique in the analysis of remote sensing observations and is thus particularly useful for those analysing the wealth of measurements from recent research satellites. This book is suitable for postgraduate students and those working on the application of data assimilation in meteorology, oceanography and other earth sciences.

Data Assimilation for Atmospheric, Oceanic and Hydrologic Applications (Vol. II)

Data Assimilation for Atmospheric, Oceanic and Hydrologic Applications (Vol. II) PDF Author: Seon Ki Park
Publisher: Springer Science & Business Media
ISBN: 3642350887
Category : Science
Languages : en
Pages : 736

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Book Description
This book contains the most recent progress in data assimilation in meteorology, oceanography and hydrology including land surface. It spans both theoretical and applicative aspects with various methodologies such as variational, Kalman filter, ensemble, Monte Carlo and artificial intelligence methods. Besides data assimilation, other important topics are also covered including targeting observation, sensitivity analysis, and parameter estimation. The book will be useful to individual researchers as well as graduate students for a reference in the field of data assimilation.

Atmospheric Rivers

Atmospheric Rivers PDF Author: F. Martin Ralph
Publisher: Springer Nature
ISBN: 3030289060
Category : Science
Languages : en
Pages : 284

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Book Description
This book is the standard reference based on roughly 20 years of research on atmospheric rivers, emphasizing progress made on key research and applications questions and remaining knowledge gaps. The book presents the history of atmospheric-rivers research, the current state of scientific knowledge, tools, and policy-relevant (science-informed) problems that lend themselves to real-world application of the research—and how the topic fits into larger national and global contexts. This book is written by a global team of authors who have conducted and published the majority of critical research on atmospheric rivers over the past years. The book is intended to benefit practitioners in the fields of meteorology, hydrology and related disciplines, including students as well as senior researchers.

Assessment of Intraseasonal to Interannual Climate Prediction and Predictability

Assessment of Intraseasonal to Interannual Climate Prediction and Predictability PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309161347
Category : Science
Languages : en
Pages : 193

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Book Description
More accurate forecasts of climate conditions over time periods of weeks to a few years could help people plan agricultural activities, mitigate drought, and manage energy resources, amongst other activities; however, current forecast systems have limited ability on these time- scales. Models for such climate forecasts must take into account complex interactions among the ocean, atmosphere, and land surface. Such processes can be difficult to represent realistically. To improve the quality of forecasts, this book makes recommendations about the development of the tools used in forecasting and about specific research goals for improving understanding of sources of predictability. To improve the accessibility of these forecasts to decision-makers and researchers, this book also suggests best practices to improve how forecasts are made and disseminated.