Evaluation of Data Quality and Drought Monitoring Capability of FY-3A MERSI Data

Table 3

Geometric location accuracy of MERSI data (unit: meter).

Point no.	MODISX	MODISY	MERSIX	MERSIY	X_Diff	Y_Diff	RMS
1	5645738	5524095	5645718	5524098	−682	186	707.32
2	5932799	5861170	5932795	5862104	−552	−317	637.26
3	6491754	5291080	6491693	5292060	−104	−176	205.46
4	6854745	5403135	6853753	5404095	−68	121	139.76
5	7000293	5764656	6998805	5765990	−160	128	205.96
6	6636750	6044083	6635740	6045110	−90	353	364.98
7	6371813	5412078	6371707	5413082	241	−173	297.46
8	6129717	6003122	6128731	6003088	202	705	734.52
9	5576752	6133008	5573799	6133098	233	15	233.74
10	5417760	5347094	5415739	5347072	504	−136	522.30
11	6884743	6095120	6882747	6097091	67	−381	387.63
12	6299718	5735132	6298756	5736088	986	11	986.91
13	6338741	6141127	6337732	6142106	−143	137	198.29
14	5409658	5642143	5406747	5642105	612	−46	614.34
15	5798758	5283109	5798707	5283129	−229	232	326.44
Total difference	X: 415.0335    Y: 213.1443   TOTAL: 466.5654