Seasonal and transient surface displacements in the Kumamoto area, Japan, associated with the 2016 Kumamoto earthquake: implications for seismic-induced groundwater level change

Earth, Planets and Space

Table 1 Basic information of SAR images used in this study

	PALSAR Descending	PALSAR-2 Descending	Sentinel-1 Descending	Sentinel-1 Ascending
The number of images	19	28	65	48
Path-frame	73–2960	23–2950 23––2960	163–483	156–105
Date of the first image	7 January 2007	18 April 2016	1 July 2016	16 November 2016
Date of the last image	5 March 2011	10 December 2018	30 December 2018	15 June 2018
Date of the master image	12 July 2008	19 September 2016	20 July 2017	15 May 2017
Mean incidence angle	38.7°	36.2°	39.2°	33.8°
Heading angle from North	190.2°	192.6°	192.9°	-12.9°
Spatial resolution (r, az)	(4.7 m, 3.2 m)	(1.4 m, 2.1 m)	(2.3 m, 14.0 m)	(2.3 m, 14.0 m)

All of acquisition dates of SAR images used in this study was provided in a supplemental information (Additional file 1: Tables S1 and S2). (r, az) for the spatial resolution represents the spatial resolution of the slant-range and azimuth direction, respectively