2 Demands and recommendations for assessment and mitigation of risk under exceptional earthquakes

2015 ◽  
Vol 42 (8) ◽  
pp. 503-509 ◽  
Author(s):  
Mike Hulley ◽  
Colin Clarke ◽  
Ed Watt

A methodology is developed for the estimation of annual low-flow quantiles for streams with annual low flows occurring in both the summer and winter. Since the low flow generating processes are different in summer and winter, independent seasonal analyses are required. The methodology provides recommendations for assessment of record length, randomness, homogeneity, independence and stationarity, as well as guidelines for distribution selection and fitting for seasonal distributions. The seasonal distributions are then used to develop the combined distribution for annual low flow estimation. Four worked examples of long-term Canadian hydrometric stations are provided.


2020 ◽  
Vol 9 (6) ◽  
pp. 332-347
Author(s):  
Massimo Rivolo ◽  
Sara Dionisi ◽  
Diletta Olivari ◽  
Guido Ciprandi ◽  
Serena Crucianelli ◽  
...  

1993 ◽  
Vol 46 (5) ◽  
pp. 262-263 ◽  
Author(s):  
C. Allin Cornell

The working group took its objective to be the formulation of a set of research and development recommendations for assessment of aging energy systems. The material discussed in every session at this workshop has relevance to the assessment of characteristics such as the current state of these facilities or their components. Indeed many of the items we cite will appear elsewhere as well. The focus we have maintained, however, is assessment for the direct purpose of decision making. The decisions may have to do with increasing inspection, monitoring or analysis, or with repair, or even with closure and replacement. The assessment may be the risk assessment of an individual structure or the problem may be that of designing a cost-efficient inventory of the status of a large “fleet” of facilities.


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