为了归纳潮汐对中间层低热层(Mesosphere and Lower Thermosphere,MLT)大气平均风的影响,对比分析了HWM07、HWM14风场预测模型。本文利用武汉流星雷达36个月的观测数据(2014年1月至2016年12月)研究了武汉上空中间层低热层区风场的变化特...为了归纳潮汐对中间层低热层(Mesosphere and Lower Thermosphere,MLT)大气平均风的影响,对比分析了HWM07、HWM14风场预测模型。本文利用武汉流星雷达36个月的观测数据(2014年1月至2016年12月)研究了武汉上空中间层低热层区风场的变化特征,得到了日平均风和周日潮汐、半日潮汐的初步气候学特征。结果表明:2014-2016年,水平风场的月平均经向风以北风为主,平均纬向风以西风为主。对于周日潮汐,HWM14模型和HWM07模型预测的经向风周日潮汐振幅小于流行雷达的实际观测值;HWM14模型和HWM07模型预测的经向风周日潮汐相位大于流行雷达的实际观测值。对于半日潮汐,2014-2016年实际观测值的振幅存在周期性变化,模型预测值较实际观测振幅略微偏大。展开更多
Ocean semi-diurnal tides are suggested qualitatively to be more accurately explained by the vertical tide generating forces of the sun and moon, not by the historically standard horizontal components. It is proposed t...Ocean semi-diurnal tides are suggested qualitatively to be more accurately explained by the vertical tide generating forces of the sun and moon, not by the historically standard horizontal components. It is proposed that the sea level elevations created sequentially at the eastern and then western ocean coastal boundaries propagate seaward as shallow water sur</span><span style="font-family:Verdana;font-size:12px;">face gravity waves and interact without mutual disturbance. In that manner two tides per day</span><span style="font-family:Verdana;font-size:12px;"> are created. Horizontal tide forces generate horizontal ocean currents with speeds of 5 mph at the most. Shallow water tide waves move at about 500 mph in open waters and therefore come much closer to being in tune with the sun and moon transiting across the sky.展开更多
文摘为了归纳潮汐对中间层低热层(Mesosphere and Lower Thermosphere,MLT)大气平均风的影响,对比分析了HWM07、HWM14风场预测模型。本文利用武汉流星雷达36个月的观测数据(2014年1月至2016年12月)研究了武汉上空中间层低热层区风场的变化特征,得到了日平均风和周日潮汐、半日潮汐的初步气候学特征。结果表明:2014-2016年,水平风场的月平均经向风以北风为主,平均纬向风以西风为主。对于周日潮汐,HWM14模型和HWM07模型预测的经向风周日潮汐振幅小于流行雷达的实际观测值;HWM14模型和HWM07模型预测的经向风周日潮汐相位大于流行雷达的实际观测值。对于半日潮汐,2014-2016年实际观测值的振幅存在周期性变化,模型预测值较实际观测振幅略微偏大。
文摘Ocean semi-diurnal tides are suggested qualitatively to be more accurately explained by the vertical tide generating forces of the sun and moon, not by the historically standard horizontal components. It is proposed that the sea level elevations created sequentially at the eastern and then western ocean coastal boundaries propagate seaward as shallow water sur</span><span style="font-family:Verdana;font-size:12px;">face gravity waves and interact without mutual disturbance. In that manner two tides per day</span><span style="font-family:Verdana;font-size:12px;"> are created. Horizontal tide forces generate horizontal ocean currents with speeds of 5 mph at the most. Shallow water tide waves move at about 500 mph in open waters and therefore come much closer to being in tune with the sun and moon transiting across the sky.
