선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- Data were collected during 10 month period (December 2001 to September 2002), that is, transition months prior to (December to March) and during the wet season (April to July). A tot이 of 10, 366 RSD (Table 1), integrated every minute, were recorded, which correspond to 172.
- The second part is the data recording and evaluation, where the RSD parameters are calculated. In this study, only the first part of the software was used, since the RSD were calculated using the software MATLAB, that requires feeding in a previously prepared rectangular numerical matrix. In the MATLAB, the number of drops with a diameter per unit of volume, corresponding to the class i, is calculated with the equation (1).
- Functions with 2 or 3 parameters are employed for the statistics of such distributions. In this work, an exponential and a lognormal distributions were used to fit the RSD.
- 3 mm, were the channels that recorded maximum drop numbers, not exceeding 200 drop m-3 though. It is noted that, for this study, cloud type and basis, terminal raindrop velocity and physical mechanisms that originate the cloud/rain were taken in consideration. It is acknowledged, though, that these factors influence the raindrops number distribution as well as their diameters.
- The data were stratified according to 8 rainfall rate classes for each month and for the total number of samples. The stratification is required since all RSD parameters are dependent on the rainfall rate (Sauvageot and Lacaux, 1995), Table 2 shows the classes ofR selected.
대상 데이터
- 84”W), located over a large flat area 80 m above sea level, known as tabuleiro costeiro (coastal plateau). The Campus is 13 km away from the coast line.
- The experimental area is one of the rainiest in Northeastern Brazil (NEB), whose climate is influenced by warm Atlantic Ocean current (The Brazil Current) strongly. The wet season is from April to July with rainfall amounting to 60% of the year total.
- The study was performed in the Campus A.C.Simdes, Universidade Federal de Alagoas (UFAL), in Maceio (9°3, 17.24, , S, 35°46'54.84”W), located over a large flat area 80 m above sea level, known as tabuleiro costeiro (coastal plateau). The Campus is 13 km away from the coast line.
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