Tropospheric scintillation depends significantly on any location's prevailing weather condition, and its variation must be statistically analyzed to ensure accurate fade margin determination. This study examines the distribution of Ku-band amplitude scintillation across selected locations in tropical Nigeria. Eight years of daily averaged data of surface temperature and relative humidity were employed for computing scintillation intensity (σ) and amplitude (χ) using international telecommunications union recommended model across eighteen (18) stations, that are subdivided into four (4) regions and spread over tropical Nigeria. The data, spanning January 2010 to December 2017, were obtained from the archive of the European center for medium-range weather forecasts (ECMWF) with a resolution of 0.125° by 0.125°. Three (3) years of in-situ data of concurrently measured satellite radio beacons and primary radio-climatic parameters at Akure (7° 17′ N, 5° 18′ E, 358 m), South-west Nigeria, were employed for comparison and validation. Statistical analyses involving time series, probability density, and cumulative distribution functions were performed on the scintillation dataset annually. Results indicate that the magnitude of tropospheric amplitude scintillation varies across different locations; nevertheless, it exhibits a similar distribution pattern characterized by the generalized extreme value (GEV) probability density function (pdf). The study has shown the need to incorporate the scintillation component into the fade mitigation architecture of telecommunication systems in tropical Nigeria while considering its regional variability. Also, experimental validation of the observations raised in this study should be encouraged at all the locations for better prediction accuracy.

对流层闪烁在很大程度上取决于任何位置的盛行天气状况，并且必须对其变化进行统计分析以确保准确确定衰落余量。这项研究检查了Ku波段幅度闪烁在尼日利亚热带地区选定位置的分布。使用八年的每日平均表面温度和相对湿度数据来计算闪烁强度（σ）和振幅（χ）使用国际电信联盟推荐的跨18（18）个站点的模型，这些站点又分为四（4）个区域，并分布在热带尼日利亚。数据从2010年1月至2017年12月，是从欧洲中程天气预报中心（ECMWF）的档案中获得的，分辨率为0.125°x 0.125°。比较了尼日利亚西南部阿库雷（7°17′N，5°18′E，358 m）同时测量的卫星无线电信标和主要无线电气候参数的三（3）年原位数据进行比较和验证。每年对闪烁数据集进行涉及时间序列，概率密度和累积分布函数的统计分析。结果表明，对流层振幅闪烁的幅度在不同位置有所不同。但是，它表现出相似的分布模式，其特征在于广义极值（GEV）概率密度函数（pdf）。研究表明，有必要将闪烁成分纳入尼日利亚热带热带地区电信系统的衰减缓解架构中，同时考虑其区域差异性。此外，应鼓励在所有位置进行实验验证，以提高预测准确性。