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首页> 外文期刊>Estudios Geograficos: Estudios Geográficos >Distribución de las fechas del inicio de la temporada lluviosa mediante análisis armónico de la región centro norte de Venezuela
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Distribución de las fechas del inicio de la temporada lluviosa mediante análisis armónico de la región centro norte de Venezuela

机译：通过对委内瑞拉中北部地区的谐波分析，确定雨季开始日期的分布

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ln the annual lapse the monthly totals of rain in Venezuela have diverse causes among which is neccesary to mention to the waves of the East, the tropical storms, the masses of air coming from occluded cold fronts and the due one to processes convective and the Intertropical Convergence (ITC), being this last one the main origin of the rainy season in Venezuela. Since the curve or graph of the monthly distribution of the rain, in the annual, reflective lapse jointly the effect of all those meteorological phenomenons, is not possible to define accurately when the ITC is presented (which becomes present only in a part of the year) and, therefore, to point out the possible beginning of the rainy season, moment that could be used to plan that human activity related with this pluvial process. However, by means of the technique of the Harmonic Analysis, based on the the trigonometrical series of Fourier, it coluld be carried out a mathematical separation of the contribution that cause the factors mentioned on the rain in their annual course, enhancing in way peculiar to the fraction coming from the ITC. The application of the harmonic analysis at 102 pluviometric stations on a sector of the Region North Center of Venezuela it allowed to obtain the temporary distribution of the rain in each measurement point, information that allowed to identify the following temporary distribution of the beginning of the rains basically the ITC: 65 in May, 18 in June, 10 in July, 3 in August and 6 in September. With base to parameters of the series of Fourier, and by means of the interpolation technique Kriging, the cartographic representation of the isochronous of the maximum of the rainy season was elaborated caused by the ITC, isolines that facilitate to model spacely, and in a coninuous way, to the pluvial process, that which allows to estimate, on the average, the beginning of the rainy season in any place of the area in study.
机译：在每年的流失中，委内瑞拉的每月降雨总量有多种原因，其中有必要提及东方的海浪，热带风暴，来自被封堵的冷锋的空气质量以及对流和对流过程的原因融合（ITC），这是委内瑞拉雨季的最后一个主要来源。由于降雨的月度分布曲线或图，在每年的反射性降雨联合中，所有这些气象现象的影响都无法准确地定义何时出现ITC（仅在一年的一部分时间内出现） ），并因此指出可能是雨季的开始，这一时刻可以用来计划人类活动与该雨季过程有关。但是，借助谐波分析技术，可以基于傅里叶的三角级数，对引起年雨中提到的降雨因素的贡献进行数学分离，从而以独特的方式增强一部分来自ITC。谐波分析在委内瑞拉北部区域中心的一个区域的102个测雨站上的应用，可以获取每个测量点的降雨的临时分布，这些信息可以识别降雨开始时的以下临时分布基本上是ITC：5月65日，6月18日，7月10日，8月3日和9月6日。基于傅立叶级数的参数，并借助Kriging插值技术，由ITC绘制了雨季最大值等时线的等时线的制图表示法，这些等值线有利于在空间上连续建模到小雨过程，可以平均估计研究区域任何地方的雨季开始。

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