民航事业的发展,已导致机场周围的飞机噪声问题日趋严重,在探索研究大角度(6度角)飞机进近的INM软件已不适用大角度进近等值线的绘制.由此,将三维坐标下的Z轴噪声值转化为等值的高度,采用有强大功能的气象学软件Surfer 8.0来探索绘制大角度进近等值线和三维噪声级表面图.随后评估大角度进近对首都机场樱花园小区的噪声影响,结果表明是一种有效的,可予今后借鉴的方法.%With the development of civil aviation industry, the influence of noise around airports has been becoming a serious problem. Since there is a lot of works on noise reduction of noise source, this paper will mainly pay attention to the steeper (6 degrees) approach noise reduction procedures. Since the INM software is not suitable for plotting steeper approach contour, each noise value in the Z-axis in three-dimensional coordinates is converted to an equivalent height. Then, the Surfer 8.0 software, the meteorology software with powerful functions, is adopted to plot the steeper approach contour and the three-dimensional surface map of noise level, so as to evaluate the noise influence of steeper approach on Cherry Park area near the Capital Airport. This work may be helpful for environmental noise control around the airports.
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