Applicability study of four atmospheric correction methods in the remote sensing of lake water color

Figures & data

Figure 1. Geographical location and sampling point distribution in the study area (Planet).

Figure 2. Measured spectral data.

Figure 3. Technical roadmap.

Figure 4. Scatter plots of remote sensing reflectance data after AC and reflectance of measured data.

Figure 5. Accuracy comparison of each band after AC.

Figure 6. Remote sensing data reflectance after AC and the reflectance of measured data.

Figure 7. Accuracy comparison of each band after AC.

Figure 8. Remote sensing reflectance after AC and reflectance of measured data.

Figure 9. Accuracy comparison of each band after AC using different methods.

Figure 10. Remote sensing data reflectance after AC and reflectance of measured data.

Figure 11. Accuracy comparison of each band after AC using different methods.

Table 1. Comparison of AC results from four types of satellite data.

		Zhuhai-1	Sentinel-2	Planet	GF-2
R^2	QUAC	0.7470	0.7734	0.8385	0.5469
	Dark Subtract	0.5346	0.6598	0.6324	0.4727
	FLAASH	0.8499	0.8977	0.8494	0.7038
	6S	0.8349	0.8576	0.8503	0.8278
RMSE	QUAC	0.0120	0.0068	0.0128	0.0085
	Dark Subtract	0.0131	0.0093	0.0145	0.0151
	FLAASH	0.0110	0.0036	0.0049	0.0070
	6S	0.0113	0.0098	0.0038	0.0037
MRE	QUAC	24.75%	14.93%	29.05%	18.07%
	Dark Subtract	38.33%	19.67%	27.11%	39.62%
	FLAASH	21.51%	8.32%	9.76%	15.86%
	6S	23.89%	18.47%	7.57%	9.29%