Iceberg B-15

Northern edge of Iceberg B-15A in the Ross Sea, Antarctica, 29 January 2001
Iceberg B-15A four-year journey, July 2002 to March 2006
Iceberg B-15Z route 2014-2018
Researchers installing weather and GPS instruments on Iceberg B-15A, 29 January 2001

The largest recorded iceberg by area.

- Iceberg B-15
Northern edge of Iceberg B-15A in the Ross Sea, Antarctica, 29 January 2001

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Ross Ice Shelf situated between Marie Byrd Land and Victoria Land

Ross Ice Shelf

Largest ice shelf of Antarctica .

Largest ice shelf of Antarctica .

Ross Ice Shelf situated between Marie Byrd Land and Victoria Land
Crevasse, Ross Ice Shelf in 2001
"The mystic Barrier" at Bay of Whales, near where Amundsen first encountered it. Note humans for size comparison (dark spots next to the large chunk of sea ice at left image border). RV Nathaniel B. Palmer is in the distance.
Ross Ice Shelf edge in 1997
Glacier-ice shelf interactions
Main drill site for the New Zealand 2017 hot water drill camp on the Ross Ice Shelf

Iceberg B-15, the world's largest recorded iceberg, was calved from the Ross Ice Shelf during March 2000.

Area map of Cape Adare

Cape Adare

Prominent cape of black basalt forming the northern tip of the Adare Peninsula and the north-easternmost extremity of Victoria Land, East Antarctica.

Prominent cape of black basalt forming the northern tip of the Adare Peninsula and the north-easternmost extremity of Victoria Land, East Antarctica.

Area map of Cape Adare
Topographic map of the Cape Adare region
Borchgrevink's 1899 hut (HSM 22) surrounded by penguins
Nicolai Hanson's grave (HSM 23) – 1899 photograph
Adélie penguins on an ice foot at Cape Adare – photo by George Murray Levick, 1911 or 1912
Adélie penguins at Cape Adare
Adélie penguin colony, at their nests

Notably, this process led to the sudden breakup of Iceberg B15 in October 2007, as well as a number of other large icebergs.

McMurdo Sound, Antarctica

McMurdo Sound

Sound in Antarctica.

Sound in Antarctica.

McMurdo Sound, Antarctica
An iceberg that calved off Iceberg B-15 caused extensive pack ice buildup in McMurdo Sound, blocking shipping and preventing penguin access to open water.
MV American Tern bringing supplies for McMurdo Station
Weather instruments such as this device installed upon Iceberg B-15A provide scientists a better understanding of Antarctica's impact upon global climate. Photograph by: Josh Landis. National Science Foundation
A research diver reaches towards a jellyfish that thrives in the -1.5 C salt water of McMurdo Sound.
Underwater photo showing the diverse animal life in McMurdo Sound, including the scallop Adamussium colbecki, sea urchin Sterechinus neumayeri, sea sponge Homaxinella balfourensis, brittlestar Ophionotus victoriae and sea spider Colossendeis
The tanker USNS Lawrence N. Gianella on standby at Winter Quarters Bay near McMurdo Station. Photograph by: Peter Rejcek. National Science Foundation.
The Erebus Ice Tongue near the ship channel used during annual resupply missions to McMurdo Station (NASA)
Most visitors to Antarctica's frozen landscape arrive via ship-borne cruises.
A Zodiac inflatable is hoisted aboard an expedition cruise ship in Antarctic waters after ferrying passengers to shore.
Mount Erebus from Castle Rock, near McMurdo Station
Orca whale off Ross Island
Orcas in McMurdo Sound
Winter Quarters Bay at McMurdo Station
Iceberg B-15A at McMurdo Sound
Icebreakers near McMurdo Station, 29 December 1965
Most visitors to Antarctica's frozen landscape arrive via ship-borne cruises.

The 282 km long Iceberg B-15, the largest ever seen at the time, broke off from the Ross Ice Shelf in March 2000 (Antarctic Climate & Ecosystems: Cooperative Research Center).

The glacier of the Geikie Plateau in Greenland.

Drygalski Ice Tongue

Glacier in Antarctica, on the Scott Coast, in the northern McMurdo Sound of Antarctica's Ross Dependency, 240 km north of Ross Island.

Glacier in Antarctica, on the Scott Coast, in the northern McMurdo Sound of Antarctica's Ross Dependency, 240 km north of Ross Island.

The glacier of the Geikie Plateau in Greenland.

On March–April 2005, a 3000 km2 iceberg designated B-15A hit the ice tongue breaking off two pieces, each with a surface area of about 70 km2.

Cape Crozier is the most easterly point of Ross Island, Antarctica

Cape Crozier

Most easterly point of Ross Island in Antarctica.

Most easterly point of Ross Island in Antarctica.

Cape Crozier is the most easterly point of Ross Island, Antarctica

From 2001 to 2005, two enormous icebergs known as Iceberg B-15 and C16 were present near shore and affected the Adelie and Emperor penguin colonies.

A cave diver running a reel with guide line into the overhead environment

Wesley C. Skiles

American cave diving pioneer, explorer, and underwater cinematographer.

American cave diving pioneer, explorer, and underwater cinematographer.

A cave diver running a reel with guide line into the overhead environment

The National Geographic Antarctica expedition allowed him to be the first human to set foot on the Iceberg B-15.

A-68A on 18 November 2020

Iceberg A-68

Giant tabular iceberg adrift in the South Atlantic, having calved from Antarctica's Larsen C ice shelf in July 2017.

Giant tabular iceberg adrift in the South Atlantic, having calved from Antarctica's Larsen C ice shelf in July 2017.

A-68A on 18 November 2020
Iceberg A-68 on 20 July 2017
The drift of Iceberg A-68A from 1 May 2018 to 26 August 2018
Radar imagery from Sentinel-1B taken on 12 July 2017, showing the complete break
A-68 on 12 July 2017
Close-up of A-68 on 20 July 2017
Close-up of A-68 on 9 December 2019
A-68A location on 9 February 2020
MS World Explorer at {{nowrap|A-68A}} (with spyhopping humpback whale) in the Weddell Sea, 10 March 2020
A-68A in open waters on 5 July 2020

With a surface area of 5,800 km2, twice the size of Luxembourg, over a quarter the Size of Wales, and larger than Delaware, it was one of the largest recorded icebergs, the largest being B-15 which measured 11,000 km2 before breaking up.

An iceberg in the Arctic Ocean

Iceberg

Piece of freshwater ice more than 15 m long that has broken off a glacier or an ice shelf and is floating freely in open water.

Piece of freshwater ice more than 15 m long that has broken off a glacier or an ice shelf and is floating freely in open water.

An iceberg in the Arctic Ocean
Northern edge of Iceberg B-15A in the Ross Sea, Antarctica, 29 January 2001
Grotto in an iceberg, photographed during the British Antarctic Expedition of 1911–1913, 5 Jan 1911
Different shapes of icebergs
Tabular iceberg, near Brown Bluff in the Antarctic Sound off Tabarin Peninsula
Non-tabular iceberg off Elephant Island in the Southern Ocean
One of the icebergs suspected of sinking the RMS Titanic; a smudge of red paint much like the Titanic red hull stripe was seen near its base at the waterline.
An iceberg being pushed by three U.S. Navy ships in McMurdo Sound, Antarctica
Iceberg A22A in the South Atlantic Ocean
Icebergs in Disko Bay
The calving of Iceberg A-38 off Filchner-Ronne Ice Shelf
Iceberg pictured in the coat of arms of Ilulissat

The largest iceberg in recent history, named B-15, measured nearly 300 km x 40 km. The B-15 iceberg calved from the Ross Ice Shelf in January 2000.

Marine biology studies species that live in marine habitats. Most of the Earth's surface is covered by ocean, which is the home to marine life. Oceans average nearly four kilometers in-depth and are fringed with coastlines that run for about 360,000 kilometres.

Kathleen Conlan

Antarctic marine biologist who studies sea floor marine life.

Antarctic marine biologist who studies sea floor marine life.

Marine biology studies species that live in marine habitats. Most of the Earth's surface is covered by ocean, which is the home to marine life. Oceans average nearly four kilometers in-depth and are fringed with coastlines that run for about 360,000 kilometres.

She also discovered that the B-15 iceberg (the world's largest recorded iceberg) in Antarctica could impact benthic life over 100 km as it blocked access to their main food supply, the annual plankton bloom.

Conjunction of planets, Moon, and Sun on May 4, 2000

2000 in science

The year 2000 in science and technology involved some significant events.

The year 2000 in science and technology involved some significant events.

Conjunction of planets, Moon, and Sun on May 4, 2000

March – Iceberg B-15, with a surface area of 11,000 km2 (4,200 sq mi), calves from the Ross Ice Shelf of Antarctica.