Classical tidal harmonic analysis including error estimates in MATLAB using T-TIDE
Classical tidal harmonic analysis including error estimates in MATLAB using T-TIDE
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DOI：
10.1016/s0098-3004(02)00013-4
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发表时间：
2002-10-01
影响因子：
4.4
通讯作者：
Lentz, S
中科院分区：
文献类型：
--
作者：
Pawlowicz, R;Beardsley, B;Lentz, S
任何海洋压力计或海流计分析的标准部分是分离信号的潮汐分量和非潮汐分量。潮汐信号可以被丢弃，或者以某种方式描述其特征以用于进一步分析。虽然潮汐信号可以通过标准的高或带通滤波技术去除，但它们相对确定的特性和大幅度使特殊技术更加有效。在经典谐波分析中，潮汐信号被建模为与天文参数相关的特定频率的有限组正弦曲线的和。用MATLAB编写了一组程序，用于（a）执行约1年或更短时间的经典谐波分析，（B）使用节点校正解释（一些）未解决的成分，以及（c）计算分析成分的置信区间。(C)2002爱思唯尔科技有限公司版权所有。
A standard part of any oceanic pressure gauge or current meter analysis is the separation of tidal from non-tidal components of the signal. The tidal signal can either be discarded, or its characteristics described in some fashion useful for further analysis. Although tidal signals can be removed by standard high or bandpass filtering techniques, their relatively deterministic character and large amplitude make special techniques more effective. In classical harmonic analysis, the tidal signal is modelled as the sum of a finite set of sinusoids at specific frequencies related to astronomical parameters. A set of programs has been written in MATLAB to (a) perform classical harmonic analysis for periods of about 1 year or shorter, (b) account for (some) unresolved constituents using nodal corrections, and (c) compute confidence intervals for the analyzed components. (C) 2002 Elsevier Science Ltd. All rights reserved.