对１９９６年３月１日至３日钠荧光散射雷达获得的观测数据进行了分析与处理，得到了钠原子密度随高度的剖面分布和随时间的变化关系。分析结果指出，武汉上空中高层大气钠原子剖面具有强烈的时空变化特点。钠层主要分布在８０～１０５ｋｍ高度，钠层最大密度高度位于９２～９５ｋｍ范围，在不出现流星雨时，其值在１～３×１０９原子每立方米之间变化 The observation data obtained from the sodium scattering laser radar from March 1 to March 3, 1996 are analyzed and processed. The distribution of the density of sodium atoms along the height and the variation with time are obtained. The analysis shows that the profile of atmospheric sodium and sodium in the upper atmosphere over Wuhan has a strong temporal and spatial variation. The sodium layer is mainly distributed in the height of 80 ~ 105km, the maximum density of sodium layer is located in the range of 92 ~ 95km. In the absence of meteor shower, its value varies from 1 to 3 × 109 atoms / m3