Features of the Internal Wave Observed by TG2-InIRA and Amplitude Retrieval

Table 1. Table1Input parameters for simulation
View table
View in Article
Table 1. Table1Input parameters for simulation
参数数值单位
振幅（ $η_{0}$ ） 8 $m$
上层深度（ $h_{1}$ ） 80 $m$
下层深度（ $h_{2}$ ） 120 $m$
波速（ $C_{0}$ ） 1.22 $m$ /s
特征宽度（ $l$ ） 619.68 $m$
约化重力加速度（ $g^{,}$ ） 0.03 $m / s^{2}$

Table 2. Table 2TG2-InIRA ocean internal wave image parameters
View table
View in Article
Table 2. Table 2TG2-InIRA ocean internal wave image parameters
数据来源获取时间分辨率/m 入射角幅宽/km
TG2-InIRA 2019-5-30 06:28:01~06:28:47 30×(200~30) 1°~8° 40
Sentinel-1 2019-5-30 10:41:02~10:41:31 5×20 29°~46° 250

Table 3. Table 3Normalized variance of IMFs
View table
View in Article
Table 3. Table 3Normalized variance of IMFs
归一化方差 IMF1 IMF2 IMF3
Profile $T_{1} T_{2}$ 0.650 8 0.349 2 0.301 5
Profile $S_{1} S_{2}$ 0.648 9 0.297 8 0.351 1

Table 4. Table 4Statistics on the TG2-InIRA and Sentinel-1 SAR internal wave images in the South China Sea
View table
View in Article
Table 4. Table 4Statistics on the TG2-InIRA and Sentinel-1 SAR internal wave images in the South China Sea
图像数目 “亮-暗” “暗-亮”
TG2-InIRA 40 11 (19.3%) 46 (80.7%)
Sentinel-1 19 17 (89.5%) 2 (10.5%)

Table 5. Table 5Wind speed and stripes of TG2-InIRA image

View table

View in Article

Table 5. Table 5Wind speed and stripes of TG2-InIRA image

TG2-InIRA内波图像获取时间	风速/(m/s)	条纹顺序
2018-09-11 23:59:12-00:10:02	2.86	亮暗
2018-09-11 23:59:12-00:10:02	2.91	亮暗
2016-12-09 22:54:09-23:04:09	6.43	暗亮
2016-12-21 03:45:10-03:53:09	7.32	暗亮
2017-01-03 11:24:57-13:07:59	4.76	暗亮
2017-08-12 14:18:37-14:34:21	4.50	暗亮

Table 6. Table 6Input parameters for retrieval
View table
View in Article
Table 6. Table 6Input parameters for retrieval
参数数值
水深H 130 m
上层厚度 $h_{1}$ 20 m
约化重力加速度 $g^{,}$ 0.028 7 $m / s^{2}$

Table 7. Table 7Internal wave parameter retrieval results
View table
View in Article
Table 7. Table 7Internal wave parameter retrieval results
特征宽度波速振幅
TG2-InIRA 355.84 m 0.769 4 m/s 0.778 9 m
Sentinel-1 387.38 m 0.657 2 m
相对偏差 8.14% / 15.62%

Tools

Get Citation

Copy Citation Text

Xiaonan AN, Yunhua ZHANG, Xiao DONG. Features of the Internal Wave Observed by TG2-InIRA and Amplitude Retrieval[J]. Remote Sensing Technology and Application, 2024, 39(5): 1141

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites