The Experts below are selected from a list of 11592 Experts worldwide ranked by ideXlab platform
Bruno Merz - One of the best experts on this subject based on the ideXlab platform.
-
A quality assessment framework for Natural Hazard event documentation: application to trans-basin flood reports in Germany
Natural Hazards and Earth System Sciences, 2014Co-Authors: S. Uhlemann, Annegret H. Thieken, Bruno MerzAbstract:Abstract. Written sources that aim at documenting and analysing a particular Natural Hazard event in the recent past are published at vast majority as grey literature (e.g. as technical reports) and therefore outside of the scholarly publication routes. In consequence, the application of event-specific documentation in Natural Hazard Research has been constrained by barriers in accessibility, concerns of credibility towards these sources and by limited awareness of their content and its usefulness for Research questions. In this study we address the concerns of credibility for the first time and present a quality assessment framework for written sources from a user's perspective, i.e. we assess the documents' fitness for use to enhance the understanding of trans-basin floods in Germany in the period 1952–2002. The framework is designed to be generally applicable for any Natural Hazard event documentation and assesses the quality of a document, addressing accessibility as well as representational, contextual, and intrinsic dimensions of quality. We introduce an ordinal scaling scheme to grade the quality in the individual quality dimensions and the Pedigree score which serves as a measure for the overall document quality. We present results of an application of the framework to a set of 133 cases of event-specific documentation relevant for understanding trans-basin floods in Germany. Our results show that the majority of flood event-specific reports are of good quality, i.e. they are well enough drafted, largely accurate and objective, and contain a substantial amount of information on the sources, pathways and receptors/consequences of the floods. The validation of our results against assessments of two independent peers confirms the objectivity and transparency of the quality assessment framework. Using an example flood event that occurred in October/November 1998 we demonstrate how the information from multiple reports can be synthesised.
-
A quality assessment framework for Natural Hazard event documentations: application to trans-basin flood reports in Germany
Natural Hazards and Earth System Sciences Discussions, 2013Co-Authors: S. Uhlemann, Annegret H. Thieken, Bruno MerzAbstract:Abstract. Written sources that aim at documenting and analysing a particular Natural Hazard event in the recent past are published at vast majority as grey literature (e.g. as technical reports) and therefore outside of the scholarly publication routes. In consequence, the application of event specific documentations in Natural Hazard Research has been constrained by barriers in accessibility and concerns of credibility towards these sources and by limited awareness of their content and its usefulness for Research questions. In this study we address the concerns of credibility for the first time and present a quality assessment framework for written sources from a user's perspective, i.e. we assess the documents' fitness for use to enhance the understanding of trans-basin floods in Germany in the period 1952–2002. The framework is designed to be generally applicable for any Natural Hazard event documentation and assesses the quality of a document addressing accessibility as well as representational, contextual, and intrinsic dimensions of quality. We introduce an ordinal scaling scheme to grade the quality in the single quality dimensions and the Pedigree score which serves as a measure for the overall document quality. We present results of an application of the framework to a set of 133 event specific documentations relevant for understanding trans-basin floods in Germany. Our results show that the majority of flood event specific reports are of a good quality, i.e. they are well enough drafted, largely accurate and objective, and contain a substantial amount of information on the sources, pathways and receptors/consequences of the floods. The validation of our results against assessments of two independent peers confirms the objectivity and transparency of the quality assessment framework. Using an example flood event that occurred in October/November 1998 we demonstrate how the information from multiple reports can be synthesised under consideration of their quality.
S. Uhlemann - One of the best experts on this subject based on the ideXlab platform.
-
A quality assessment framework for Natural Hazard event documentation: application to trans-basin flood reports in Germany
Natural Hazards and Earth System Sciences, 2014Co-Authors: S. Uhlemann, Annegret H. Thieken, Bruno MerzAbstract:Abstract. Written sources that aim at documenting and analysing a particular Natural Hazard event in the recent past are published at vast majority as grey literature (e.g. as technical reports) and therefore outside of the scholarly publication routes. In consequence, the application of event-specific documentation in Natural Hazard Research has been constrained by barriers in accessibility, concerns of credibility towards these sources and by limited awareness of their content and its usefulness for Research questions. In this study we address the concerns of credibility for the first time and present a quality assessment framework for written sources from a user's perspective, i.e. we assess the documents' fitness for use to enhance the understanding of trans-basin floods in Germany in the period 1952–2002. The framework is designed to be generally applicable for any Natural Hazard event documentation and assesses the quality of a document, addressing accessibility as well as representational, contextual, and intrinsic dimensions of quality. We introduce an ordinal scaling scheme to grade the quality in the individual quality dimensions and the Pedigree score which serves as a measure for the overall document quality. We present results of an application of the framework to a set of 133 cases of event-specific documentation relevant for understanding trans-basin floods in Germany. Our results show that the majority of flood event-specific reports are of good quality, i.e. they are well enough drafted, largely accurate and objective, and contain a substantial amount of information on the sources, pathways and receptors/consequences of the floods. The validation of our results against assessments of two independent peers confirms the objectivity and transparency of the quality assessment framework. Using an example flood event that occurred in October/November 1998 we demonstrate how the information from multiple reports can be synthesised.
-
A quality assessment framework for Natural Hazard event documentations: application to trans-basin flood reports in Germany
Natural Hazards and Earth System Sciences Discussions, 2013Co-Authors: S. Uhlemann, Annegret H. Thieken, Bruno MerzAbstract:Abstract. Written sources that aim at documenting and analysing a particular Natural Hazard event in the recent past are published at vast majority as grey literature (e.g. as technical reports) and therefore outside of the scholarly publication routes. In consequence, the application of event specific documentations in Natural Hazard Research has been constrained by barriers in accessibility and concerns of credibility towards these sources and by limited awareness of their content and its usefulness for Research questions. In this study we address the concerns of credibility for the first time and present a quality assessment framework for written sources from a user's perspective, i.e. we assess the documents' fitness for use to enhance the understanding of trans-basin floods in Germany in the period 1952–2002. The framework is designed to be generally applicable for any Natural Hazard event documentation and assesses the quality of a document addressing accessibility as well as representational, contextual, and intrinsic dimensions of quality. We introduce an ordinal scaling scheme to grade the quality in the single quality dimensions and the Pedigree score which serves as a measure for the overall document quality. We present results of an application of the framework to a set of 133 event specific documentations relevant for understanding trans-basin floods in Germany. Our results show that the majority of flood event specific reports are of a good quality, i.e. they are well enough drafted, largely accurate and objective, and contain a substantial amount of information on the sources, pathways and receptors/consequences of the floods. The validation of our results against assessments of two independent peers confirms the objectivity and transparency of the quality assessment framework. Using an example flood event that occurred in October/November 1998 we demonstrate how the information from multiple reports can be synthesised under consideration of their quality.
Annegret H. Thieken - One of the best experts on this subject based on the ideXlab platform.
-
A quality assessment framework for Natural Hazard event documentation: application to trans-basin flood reports in Germany
Natural Hazards and Earth System Sciences, 2014Co-Authors: S. Uhlemann, Annegret H. Thieken, Bruno MerzAbstract:Abstract. Written sources that aim at documenting and analysing a particular Natural Hazard event in the recent past are published at vast majority as grey literature (e.g. as technical reports) and therefore outside of the scholarly publication routes. In consequence, the application of event-specific documentation in Natural Hazard Research has been constrained by barriers in accessibility, concerns of credibility towards these sources and by limited awareness of their content and its usefulness for Research questions. In this study we address the concerns of credibility for the first time and present a quality assessment framework for written sources from a user's perspective, i.e. we assess the documents' fitness for use to enhance the understanding of trans-basin floods in Germany in the period 1952–2002. The framework is designed to be generally applicable for any Natural Hazard event documentation and assesses the quality of a document, addressing accessibility as well as representational, contextual, and intrinsic dimensions of quality. We introduce an ordinal scaling scheme to grade the quality in the individual quality dimensions and the Pedigree score which serves as a measure for the overall document quality. We present results of an application of the framework to a set of 133 cases of event-specific documentation relevant for understanding trans-basin floods in Germany. Our results show that the majority of flood event-specific reports are of good quality, i.e. they are well enough drafted, largely accurate and objective, and contain a substantial amount of information on the sources, pathways and receptors/consequences of the floods. The validation of our results against assessments of two independent peers confirms the objectivity and transparency of the quality assessment framework. Using an example flood event that occurred in October/November 1998 we demonstrate how the information from multiple reports can be synthesised.
-
A quality assessment framework for Natural Hazard event documentations: application to trans-basin flood reports in Germany
Natural Hazards and Earth System Sciences Discussions, 2013Co-Authors: S. Uhlemann, Annegret H. Thieken, Bruno MerzAbstract:Abstract. Written sources that aim at documenting and analysing a particular Natural Hazard event in the recent past are published at vast majority as grey literature (e.g. as technical reports) and therefore outside of the scholarly publication routes. In consequence, the application of event specific documentations in Natural Hazard Research has been constrained by barriers in accessibility and concerns of credibility towards these sources and by limited awareness of their content and its usefulness for Research questions. In this study we address the concerns of credibility for the first time and present a quality assessment framework for written sources from a user's perspective, i.e. we assess the documents' fitness for use to enhance the understanding of trans-basin floods in Germany in the period 1952–2002. The framework is designed to be generally applicable for any Natural Hazard event documentation and assesses the quality of a document addressing accessibility as well as representational, contextual, and intrinsic dimensions of quality. We introduce an ordinal scaling scheme to grade the quality in the single quality dimensions and the Pedigree score which serves as a measure for the overall document quality. We present results of an application of the framework to a set of 133 event specific documentations relevant for understanding trans-basin floods in Germany. Our results show that the majority of flood event specific reports are of a good quality, i.e. they are well enough drafted, largely accurate and objective, and contain a substantial amount of information on the sources, pathways and receptors/consequences of the floods. The validation of our results against assessments of two independent peers confirms the objectivity and transparency of the quality assessment framework. Using an example flood event that occurred in October/November 1998 we demonstrate how the information from multiple reports can be synthesised under consideration of their quality.
Markus Stoffel - One of the best experts on this subject based on the ideXlab platform.
-
A Review of Studies Dealing with Tree Rings and Rockfall Activity: The Role of Dendrogeomorphology in Natural Hazard Research
Natural Hazards, 2006Co-Authors: Markus StoffelAbstract:Over the last few years, rockfall Research has increasingly focused on Hazard assessment and risk analysis. Input data on past rockfall activity were gathered from historical archives and lichenometric studies or were obtained through frequency–volume statistics. However, historical records are generally scarce, and lichenometry may only yield data with relatively low resolutions. On forested slopes, in contrast, tree-ring analyses may help, generally providing annual data on past rockfall activity over long periods. It is the purpose of the present literature review to survey the current state of investigations dealing with tree-ring sequences and rockfall activity, with emphasis on the extent to which dendrogeomorphology may contribute to rockfall Research. Firstly, a brief introduction describes how dendrogeomorphological methods can contribute to Natural Hazard Research. Secondly, an account is provided of the output of dendrogeomorphological studies investigating frequencies, volumes or spatial distributions of past rockfall activity. The current and potential strengths of dendrogeomorphology are then presented before, finally, the weaknesses of tree rings as Natural archives of past rockfall activity are discussed and promising directions for further studies outlined. Copyright Springer 2006
-
Tree-Ring Analysis and Rockfall Research: Possibilities and Limitations
2006Co-Authors: Markus Stoffel, Dominique Schneuwyl, Michelle Bollschweiler, Simone PerretAbstract:Over the last few years, rockfall Research has increasingly focused on Hazard assessment and risk analysis. Input data on past rockfall activity were gathered from historical archives and lichenometric studies or were obtained through frequency-volume statistics. However, historical records are generally scarce, and lichenometry may only yield data with relatively low resolutions. On forested slopes, in contrast, tree-ring analyses may help, generally providing annual data on past rockfall activity over long periods. The purpose of the present literature review is to survey the current state of investigations dealing with tree-ring sequences and rockfall activity, with emphasis on the extent to which dendrogeomorphology may contribute to rockfall Research. A brief introduction describes how dendrogeomorphological methods can contribute to Natural Hazard Research. Secondly, an account is provided of the output of dendrogeomorphological studies investigating frequencies, volumes, spatial distributions or triggers of past rockfall activity. The current and potential strengths of dendrogeomorphology are then presented. In a final step, we mention weaknesses of tree rings as Natural archives of past rockfall activity are discussed and promising directions for further studies outlined.
Md. Rashed Chowdhury - One of the best experts on this subject based on the ideXlab platform.
-
The Impact of `Greater Dhaka Flood Protection Project' (GDFPP) on Local Living Environment – The Attitude of the Floodplain Residents
Natural Hazards, 2003Co-Authors: Md. Rashed ChowdhuryAbstract:This paper aims to examine the impact of large-scale structuraladjustments (like the Greater Dhaka Flood Protection Project, GDFPP) on local living environment.It focuses the importance of environmental factors in flood Hazard mitigation, and examines theenvironmental attitudes of the floodplain residents arising from the large-scale structural adjustments.Based on `perceived Natural Hazard Research perspectives', this paper examines: (i) the reasons for persistentfloodplain occupation, and (ii) the importance of environmental factors in the choice, motivations and decision-makingof floodplain residents. This Research used data collected from 300 households situated inthe eastern part of Dhaka. The face-to-face household survey data provided individuals' responses to a structuredquestionnaire on Hazards and environment. Survey concerned urban floodplains, and looked fordata on housing, household characteristics, and residents' attitudes. Results of interview surveys wereused to: (i) explore the reasons of floodplain occupation, and (ii) residents' attitudes to tolerable levelof flood risk and willingness to accept environmental change resulting from the proposed structural embankments inthe eastern perimeter of Dhaka City, Bangladesh. Findings revealed that floodplain occupation (by theindividuals' decision-making) was a result of overall reaction to the Government's structuraladjustment policies that resulted from institutional, locational and socio-economic factors. The attitude survey results provided residents' perception to Hazards and environment to be dependenton the socio-economic factors – but in a complex manner, many factors are interrelated.In addition to support for structural embankments, the study sample displayed a common concernand widespread environmental awareness. In terms of any `trade-off' between the benefits (resources) from the embankments and costs (Hazards) due to the detrimental impact on environment, the residents of Dhaka, despite some concern forsacrificing embankments for environment, tended to show a generalconsensus for embankments.
