Measured and model comparison analysis of atmospheric wind field characteristics at an altitude of 60~110 km
Received date: 2023-05-24
Online published: 2024-12-19
Copyright
The HWM07 model can provide mid-and upper-atmosphere wind field data at any time, position and altitude, It makes up for the low temporal and spatial resolution of the observation data, and has become an important reference data in the early design process of space vehicles, Therefore, the accuracy characteristics of the wind field from the HWM07 model need to be studied. Based on the meridional wind data and zonal wind data of HWM07 model and MF radar in January (winter) and July (summer) 2016 in Langfang, the changes and differences of meridional wind and zonal wind in winter and in summer are preliminarily studied by using common mathematical statistics methods such as absolute difference, correlation coefficient and Lomb-Scargle periodogram. The results demonstrated that at the altitude of 60~110 km, (1) in winter and in summer, the average meridional wind and zonal wind characteristics of MF radar are basically consistent with the HWM07 model, but the average wind field characteristics between winter and summer are opposite. (2) For meridional wind and zonal wind, the variation characteristics of deviation, absolute difference and correlation coefficient between HWM07 model and MF radar with height in winter are significantly different from those in summer. (3) At an altitude of 86~92 km, there are significant differences between zonal wind, meridional wind of MF radar and HWM07 model in wave period and the power spectrum values, there are also differences in atmospheric fluctuations that play a major role in the characteristics of zonal wind and meridional wind, and are related to altitude and season. Therefore, when applying the wind field results of HWM07 model, it is necessary to pay attention to the differences in wind speed and significant wave spectrum between HWM07 model wind field data and the real wind field data, which are related to season and height.
Key words: Altitude 60~110 km; HWM07 model; MF radar; Wind field; Lomb-Scargle periodogram
HuHua CHENG , Chao GAO , XinDong LI , Liang ZHAO , HaiWen LIU , Xiao ZHANG . Measured and model comparison analysis of atmospheric wind field characteristics at an altitude of 60~110 km[J]. Progress in Geophysics, 2024 , 39(5) : 1711 -1722 . DOI: 10.6038/pg2024HH0155
图2 在冬季,HWM07模式与MF radar之间经向风(a)、偏差(b)、绝对差(c)、相关系数(d)及纬向风(e)、偏差(f)、绝对差(g)和相关系数(h)随高度变化特征Figure 2 The altitude variations of meridional wind (a), meridional wind deviation (b), meridional wind absolute difference (c), meridional wind correlation coefficient (d) and zonal wind (e), zonal wind deviation (f), zonal wind absolute difference (g), zonal wind correlation coefficient (h) between HWM07 model and MF radar in winter |
图3 在夏季,HWM07模式与MF radar之间经向风(a)、偏差(b)、绝对差(c)、相关系数(d)及纬向风(e)、偏差(f)、绝对差(g)和相关系数(h)随高度变化特征Figure 3 The altitude variations of meridional wind (a), meridional wind deviation (b), meridional wind absolute difference (c), meridional wind correlation coefficient (d) and zonal wind (e), zonal wind deviation (f), zonal wind absolute difference (g), zonal wind correlation coefficient (h) between HWM07 model and MF radar in summer |
图4 在冬季,HWM07模式和MF radar经向风在高度86 km(a)、88 km(b)、90 km(c)、92 km(d)的Lomb-Scargle周期图结果Figure 4 Lomb-Scargle periodiagram of meridional wind at 86 km (a), 88 km(b), 90 km(c), 92 km(d) for HWM07 model and MF radar in winter |
表1 在冬季,HWM07模式和MF radar的经向风和纬向风在不同高度中显著含有的主要波周期(单位:h)及对应功率谱(单位:m2·s-1)Table 1 In winter, the meridional and zonal winds of HWM07 model and MF radar significantly contain the main wave period (unit: h) and corresponding power spectrum (unit: m2·s-1) at different altitudes |
| 冬季不同高度风场中显著含有的主要波周期(功率谱) | 冬季经向风 | 冬季纬向风 | |||
|---|---|---|---|---|---|
| HWM07 | MF radar | HWM07 | MF radar | ||
| 高度86 km | 24.15 (277.42) | 263.16 (17.42) | 23.98 (219.83) | 588.24 (88.17) | |
| 11.99 (74.22) | 23.53 (18.72) | 12.03 (120.79) | 23.53 (25.82) | ||
| 15.41 (18.84) | 11.72 (14.43) | ||||
| 11.78 (26.17) | |||||
| 高度88 km | 24.04 (255.44) | 270.27 (20.96) | 23.98 (234.50) | 588.24 (94.25) | |
| 11.99 (93.99) | 23.98 (20.40) | 12.03 (108.95) | 24.10 (30.99) | ||
| 15.29 (16.06) | 11.70 (9.49) | ||||
| 12.89 (26.04) | |||||
| 高度90 km | 23.98 (212.73) | 270.27 (20.71) | 23.98 (201.73) | 588.24 (86.07) | |
| 11.99 (135.67) | 23.92 (31.47) | 11.99 (140.24) | 23.92 (32.34) | ||
| 12.05 (27.52) | 8.01 (11.37) | 12.00 (13.04) | |||
| 高度92 km | 23.98 (174.95) | 270.27 (19.59) | 23.98 (170.14) | 588.24 (70.91) | |
| 11.99 (174.32) | 24.04 (52.14) | 11.99 (168.25) | 24.04 (43.18) | ||
| 12.90 (14.54) | 8.01 (15.91) | 11.68 (10.43) | |||
图6 在夏季,HWM07模式和MF radar经向风在高度86 km(a)、88 km(b)、90 km(c)、92 km(d)的Lomb-Scargle周期图结果Figure 6 Lomb-Scargle periodiagram of meridional wind at 86 km (a), 88 km(b), 90 km(c), 92 km(d) for HWM07 model and MF radar in summer |
表2 在夏季,HWM07模式和MF radar的经向风和纬向风在不同高度中显著含有的主要波周期(单位:h)及对应功率谱(单位:m2·s-1)Table 2 In summer, the meridional and zonal winds of HWM07 model and MF radar significantly contain the main wave period (unit: h) and corresponding power spectrum (unit: m2·s-1) at different altitudes |
| 夏季不同高度风场中显著含有的主要波周期(功率谱) | 经向风 | 纬向风 | |||
|---|---|---|---|---|---|
| HWM07 | MF radar | HWM07 | MF radar | ||
| 高度86 km | 23.98 (174.20) | 49.26 (33.05) | 23.98 (99.43) | 42.37 (28.08) | |
| 11.99 (178.24) | 42.37 (16.30) | 11.99 (212.82) | 34.60 (18.97) | ||
| 11.89 (38.69) | 11.89 (37.71) | ||||
| 高度88 km | 23.98 (182.92) | 50.00 (35.47) | 23.98 (92.04) | 42.19 (26.74) | |
| 11.99 (161.60) | 24.10 (17.94) | 11.99 (209.40) | 34.97 (20.51) | ||
| 7.99 (10.02) | 12.03 (59.59) | 7.99 (17.79) | 12.03 (70.12) | ||
| 高度90 km | 23.98 (180.48) | 49.02 (32.48) | 23.98 (132.26) | 42.02 (24.66) | |
| 11.99 (153.41) | 24.04 (27.98) | 11.99 (178.29) | 34.97 (14.67) | ||
| 7.99 (20.59) | 12.02 (53.71) | 8.01 (18.92) | 12.02 (67.66) | ||
| 高度92 km | 23.98 (155.94) | 48.78 (26.87) | 23.98 (176.71) | 42.74 (25.29) | |
| 11.99 (180.48) | 23.98 (31.18) | 11.99 (159.72) | 34.97 (13.28) | ||
| 7.99 (18.88) | 12.00 (53.05) | 12.00 (52.84) | |||
感谢审稿专家提出的修改意见和编辑部的大力支持!
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