Ground subsidence and polygon development due to thermokarst in the Lena-Aldan interfluve, eastern Siberia, revealed by satellite remote sensing data

Progress in Earth and Planetary Science

Table 1 Detail of ALOS-2 data used in this study

Area	Path-Frame, Incidence angle	Acquisition date of scenes (dd/mm/yyyy)
Mayya	126–1230, 32.5	03/10/2014, 02/10/2015, 30/09/2016, 31/08/2018, 12/10/2018, 19/07/2019, 30/08/2019, 11/10/2019, 17/07/2020, 21/05/2021, 08/10/2021
Churapcha	124–1240, 28.5	11/08/2015, 22/09/2015, 19/09/2017, 10/07/2018, 21/08/2018, 07/07/2020, 06/07/2021
Tyungyulyu	126–1240, 40.6	05/09/2014, 12/06/2015, 04/09/2015, 02/09/2016, 01/09/2017, 22/06/2018, 03/08/2018, 21/06/2019, 19/06/2020, 18/06/2021
Amga	126–1210, 40.6	05/09/2014, 12/06/2015, 04/09/2015, 02/09/2016, 01/09/2017, 22/06/2018, 03/08/2018, 21/06/2019, 19/06/2020, 18/06/2021