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PenguinTracker / Colonies / North of False Ridge

North of False Ridge

Penguin breeding site · Elephant Island · CCAMLR 48.1

North of False Ridge is a known penguin breeding site in the Elephant Island, at 61°16'S 54°03'W. Chinstrap penguins have been recorded here.

RegionElephant Island
CCAMLR subarea48.1
Species recorded1
Sea ice within 100 km105 days a year, median
Site codeNFAL
Position61°16'S 54°03'W
Decimal-61.2710, -54.0420
Distance to pole3,195 km
Populationnot published — see below

Species recorded here

Chinstrap penguinPygoscelis antarcticus

The sea around this site, 1979–2024

0901802703661979 · 105 days1980 · 247 days1981 · 170 days1982 · 108 days1983 · 100 days1988 · 228 days1989 · 42 days1990 · 153 days1991 · 153 days1992 · 134 days1993 · 65 days1994 · 150 days1995 · 122 days1996 · 90 days1997 · 187 days1998 · 93 days1999 · 71 days2000 · 46 days2001 · 106 days2002 · 82 days2003 · 90 days2004 · 55 days2005 · 99 days2006 · 92 days2007 · 202 days2008 · 51 days2009 · 111 days2010 · 53 days2011 · 140 days2012 · 202 days2013 · 118 days2014 · 93 days2015 · 126 days2016 · 67 days2017 · 108 days2018 · 36 days2019 · 133 days2020 · 116 days2021 · 49 days2022 · 40 days2023 · 71 days198019851990199520002005201020152020DAYS A YEAR WITH SEA ICE OVER 15% WITHIN 100 KM · PALE BARS ARE ICE YEARS THE COVERAGE GATE DROPS
One bar per ice year, 15 February to 14 February. Fixed 0–366 axis.

Averaged over the 51 ocean cells within 100 km, this site carries sea ice for a median of 105 days a year, peaking at a median 73.8% concentration. The fitted change is -15.1 days per decade, but it does not hold when the record is refitted from 1988 onward, so it is not quotable — the satellite before that date reads low at the coast, and every site here is coastal.

53 other known breeding sites lie within 200 km of this one, and the cells this measurement averages over reach 100 km — so this record and theirs are not independent readings of the sea. Thinned so that no two overlap, the 728 measurable sites in this archive become 56 places.

In the 2023 ice year — the last one this archive holds — the sea ice here lasted 71 days, which is this site's 12th shortest season of 41 and below its own median of 105. It was below the median at 657 of the 728 sites measured here and at 44 of the 56 independent places, which is the most widespread short season in the record: the whole archive is drawn in one frame.

Two limits. This is the sea around the site and never the fast ice on it — at 25 km that is invisible. And the archive ends 2024-12-31, so it is a climate record rather than a current reading.

Why there is no count on this page

Penguins are too small to resolve from orbit. What is visible is the guano stain a colony leaves on the ice, which is why counting from satellite is a colour problem rather than a counting problem — and it is not solved. Our own detector correlates at r = −0.16 against ground counts across eight colonies, which is no relationship at all. Until that is fixed, this site publishes locations and says nothing about numbers. A number we cannot defend would be worse than none.

Nearest breeding sites

Nearest stations

60°SNORTH OF FALSE RIDGE
North of False Ridge in Antarctic Polar Stereographic. Rings are 60°, 70° and 80°S.
False Ridge GoeldiComandante FerrazN161 KM
Within 322 km. Blue dots are other breeding sites, orange are stations.