Journal of Remote Sensing / 2021 / Article / Fig 2

Research Article

Automatically Monitoring Impervious Surfaces Using Spectral Generalization and Time Series Landsat Imagery from 1985 to 2020 in the Yangtze River Delta

Figure 2

The spatial distribution of availability of time series Landsat imagery after masking poor-quality observations over the period of 1985-2020 with the interval of 5 years.