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Table 2 Changes in the landslide lakes lengths over time with data sources and approximate ground resolution indicated

From: Longevity of dams from landslides with sub-channel rupture surfaces, Peace River region, Canada

Date Lake Length (km) Source Data Resolution (m)
Eureka River
 Sep 29, 1990 7 Landsat 5 Thematic Mapper 30
 Oct 6, 1992 6 Alberta Air Photo AS4892, 148 a1
 Sep 1, 1997 2.9 Alberta Air Photo AS4892, 148 a1
 Aug 1999 1.7 Field Survey NA
 Aug 25, 2006 0.7 Alberta Air Photo AS5379B, 15 a1
 May 28, 2009 0.1 RapidEye 3–5
 Jun 7, 2009 0 RapidEye 3–5
Fox Creek
 28 Aug, 2007 1.6 Landsat 7 Enhanced Thematic Mapper 30
 Jun 17, 2010 1.1 RapidEye 3–5
 May 15, 2011 1 RapidEye 3–5
 Sep 17 2012 1 Digital Globe 0.5
 Sep 19, 2013 0.8 Digital Globe 0.5
 Jul 4, 2014 0.6 RapidEye 3–5
 Jun 3, 2015 0.6 RapidEye 3–5
 May 23, 2016 0.1 RapidEye 3–5
 Jun 10, 2017 0.1 RapidEye 3–5
Hines Creek
 Jun 25, 1991 1.7 Landsat 5 Thematic Mapper 30
 Jun 14, 1992 1.5 Landsat 5 Thematic Mapper 30
 Aug 17, 1992 1.4 Alberta Air Photo AS4314–251 a1
 Jun 26, 1993 1.5 Landsat 5 Thematic Mapper 30
 Jun 20, 1994 1.2 Landsat 5 Thematic Mapper 30
 Jun 16, 1995 1.0 Landsat 5 Thematic Mapper 30
 Jun 25, 1996 0.9 Landsat 5 Thematic Mapper 30
 Oct 8, 1996 0.7 Landsat 5 Thematic Mapper 30
 Apr 18, 1997 0 Landsat 5 Thematic Mapper 30
Pouce Coupe River
 Aug 23, 2013 2.0 RapidEye 3–5
 Sep 3, 2013 2.0 Landsat 8 Operational Land Imager 30
 Sep 12, 2013 2.0 Landsat 8 Operational Land Imager 30
 Oct 13, 2013 2.0 Landsat 7 Enhanced Thematic Mapper 30
 Apr 8, 2014 0 Landsat 8 Operational Land Imager 30
Saddle River
 Mar 30, 1991 5.7 Landsat 5 Thematic Mapper 30
 Sep 19, 1995 2.8 Alberta air photo AS4680–33 a1
 Sep 17, 2001 1.0 Alberta air photoAS5194B-40 a1
 May 2, 2005 0.5 Landsat 7 Enhanced Thematic Mapper 30
 Aug 13, 2006 0 Alberta air photo TRSG0602–1536 a1
Spirit River
 Sep 19, 1995 2.1 Alberta Air Photo AS4680–32 a1
 Jul 1999 0.7 Field Survey NA
 Sep 19, 2013 0.3 Digital Globe 0.5
  1. Notes: a1 – objects on the ground of less than 1 m can be recognized using film-based air photos