Event label	Optional label	Method/Device	Abbreviation	O2A Registry URI	Date/Time	Latitude	Longitude	Elevation	Date/Time end	Latitude end	Longitude end	Elevation end	Comment
iGRIFF_ApRES2a		Autonomous phase-sensitive radio-echo sounder	ApRES		2016-08-23T00:00:00	79.39940	-22.40390		2018-07-28T00:00:00	79.41420	-22.31160		
iGRIFF_ApRES1		Autonomous phase-sensitive radio-echo sounder	ApRES		2016-08-25T00:00:00	79.32360	-22.23440		2022-06-19T00:00:00	79.35890	-21.98230		
iGRIFF_79N_glacier_2017		Ice measurement	ICEM		2017-06-30T00:00:00	79.35000	-22.40000		2017-07-26T00:00:00				
GPS-shelf		GNSS Receiver	GNSS		2017-07-05T17:07:57	79.39660	-22.24660						
GPS-hinge		GNSS Receiver	GNSS		2017-07-07T09:46:57	79.36660	-22.49920						
GPS-GL-14		GNSS Receiver	GNSS		2017-07-09T12:00:27	79.28800	-23.12070						
GPS05_2017		GNSS Receiver	GNSS		2017-07-09T13:53:00	79.14384	-24.39520	866.6	2017-08-26T21:35:00				
GPS-GL-45		GNSS Receiver	GNSS		2017-07-09T13:53:27	79.14380	-24.39520						
GPS10_2017		GNSS Receiver	GNSS		2017-07-16T12:20:00	79.08457	-24.34598	879	2017-10-05T21:07:00				
iGRIFF_ApRES4		Autonomous phase-sensitive radio-echo sounder	ApRES		2017-07-18T00:00:00	79.37487	-22.44302		2022-07-02T00:00:00	79.38803	-22.33622		
iGRIFF_ApRES3		Autonomous phase-sensitive radio-echo sounder	ApRES		2017-07-18T00:00:00	79.37490	-22.44300		2023-09-06T00:00:00	79.41880	-22.13030