On the min-max estimation of mean daily temperatures

On the min-max estimation of mean daily temperatures
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关于日平均气温的最小-最大估计

DOI:
10.1007/s00382-019-04757-6
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发表时间:
2019-08-01
期刊:
影响因子:
4.6
通讯作者:
Nicolis, Catherine
Nicolis, Catherine
中科院分区:
地球科学2区
文献类型:
--
作者:
Tsonis, Anastasios A.;Pan, Xinnong;Nicolis, Catherine

文献摘要

被引文献

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对每小时温度记录的现代数据分析表明,除了日周期外,还存在不同频率的多种强迫。因此,直接从最低和最高温度的平均值估计每日当地平均温度的常规方法受到严重影响。一个简单的动力学模型进行两个不同的频率,振幅和相位的周期性强迫解析求解,并显示诱导实质性偏差的最小-最大的方法,关键取决于所涉及的参数的值。
Modern data analyses of hourly temperature records reveal the existence, in addition to the daily cycle, of multiple forcings of different frequencies. As a result the routine approach of estimating daily local mean temperature directly from the average of the minimum and maximum is heavily compromised. A simple dynamical model subjected to two periodic forcings of different frequencies, amplitudes and phases is solved analytically and shown to induce substantial deviations from the min-max method that depend crucially on the values of the parameters involved.