Estimating return values of environmental parameters
Estimating return values of environmental parameters
复制标题
估计环境参数的返回值
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
P. Challenor
中科院分区：
文献类型：
--
作者：
D. Carter;P. Challenor
环境参数（例如风速或波高）的返回值通常是根据观测到的年度最大值的极值分析来估计的，假设该参数在全年中分布相同。环境数据通常有相当大的年内变化。通过分析波高和风速数据的每月最大值，可以获得由该假设引起的返回值误差的指示。看来该假设导致了对回报值的低估。
Return values of an environmental parameter, such as wind speed or wave height, are frequently estimated from an extreme value analysis of observed annual maxima assuming that the parameter is identically distributed throughout the year. Environmental data generally have considerable within-year variation. an indication of the error in return values resulting from this assumption is obtained by analysing monthly maxima of wave height and wind speed data. It appears that the assumption leads to an underestimation of return values.