Transect Year Model Cline Center (km) Cline Width (km)
Massachusetts 2007 Fixed frequencies, no tails 130.64 (129.05, 132.18) 14.02 (10.83, 18.33)
Massachusetts 2008 Free frequencies, no tails 127.56 (126.05, 128.95) 9.87 (6.62, 14.16)
Massachusetts 2009 Free frequencies, no tails N/A N/A
Massachusetts 2010 Fixed frequencies, no tails 115.23 (109.97, 121.12) 69.42 (53.42, 92.55)
Massachusetts 2011 Free frequencies, no tails N/A N/A
Massachusetts 2012 Free frequencies, no tails N/A N/A
Massachusetts 2013 Free frequencies, with tails 107.13 (103.42, 110.49) 49.07 (39.11, 63.1)
Massachusetts 2014 Fixed frequencies, no tails 104.66 (100.41, 108.57) 53.66 (42.19, 68.94)
Massachusetts 2015 Fixed frequencies, no tails 102.44 (98.79, 105.68) 42.84 (34.17, 54.8)
Massachusetts 2016 Fixed frequencies, no tails 98.64 (94.24, 102.52) 47.57 (38.02, 60.16)
Massachusetts 2017 Free frequencies, no tails 95.84 (93.03, 97.21) 9.62 (5.89, 21.3)
Massachusetts 2018 Fixed frequencies, no tails 103.58 (100.4, 106.66) 55.17 (47.25, 64.7)
Connecticut 2016 Fixed frequencies, no tails 109.23 (106.75, 111.97 43.41 (37.25, 49.11)
Connecticut 2017 Fixed frequencies, no tails 100.31 (97.22, 103.19) 50.3 (40.56, 58.34)
Connecticut 2018 Fixed frequencies, no tails 103.42 (101.01, 105.77) 26.82 (21.85, 32.84)