[Retracted] Analysis and Evaluation of Ecological Environment Monitoring Based on PIE Remote Sensing Image Processing Software

Table 2

Remote sensing image selection time period and data type.

Year	Image selection time		Remote sensing image data type
2010	July 15th	August 10th	TM
2013	July 20th	August 15th	TM
2015	July 23th	August 20th	TM
2017	July 7th	August 5th	ETM+
2020	July 13th	August 8th	OLI