|
Year
2000 Icebergs
NEW
ICEBERG IN THE ROSS SEA
NASA
TERRA Image
December
14,2000-The University of Wisconsin
Antarctic Meteorology Research Center (AMRC) has released pictures of a
new iceberg. It appears that
another iceberg, B-15F has broken away from the B-15B iceberg.
National
Ice Center
NOAA
Press Release-
NEW
ICEBERG IN THE ROSS SEA
October
1, 2000 — A new iceberg,
345 square miles in area, has splintered away from Antarctic's Ross Ice Shelf in
the Ross Sea, the National Ice Center in Suitland, Md., reports. Iceberg
B-20 was detected on September 27 using the Defense Meteorological Satellite
Program's Optical Linescan Sensor infrared imagery. It is known to have broken
away from the Ross Ice Shelf sometime between September 20 and 26. The exact
date of splintering is currently unknown due to the extensive cloud cover that
persisted over the southern Ross Sea. B-20 is located in the vicinity of
Latitude 77 degrees, 00 minutes south; Longitude 170 degrees, 42 minutes east,
and has moved northwest since breaking away from the Ross Ice Shelf. B-20
measures 30 by 11.5 statute miles. Iceberg names are derived from the Antarctic
quadrant in which they were originally sighted. The quadrants are divided
counter-clockwise in the following manner:
A = 0 to 90 degrees West longitude (Bellinghausen/Weddell
Sea)
B = 90 West to 180 (Amundsen/Eastern Ross Sea)
C = 180 to 90 East (Western
Ross Sea/Wilkesland)
D = 90 East to 0 (Amery/Eastern Weddell Sea)
When an
iceberg is first sighted, the National Ice Center documents its point of origin.
The letter of the quadrant, along with a sequential number, is assigned to the
iceberg. For example, B-20 is the 20th iceberg the ice center has found in
Antarctica in Quadrant B since it began monitoring in 1976. The National Ice
Center, a tri-agency operational activity with representation from the U.S.
Navy, NOAA, and the U.S. Coast Guard, provides worldwide operational sea ice
analyses and forecasts tailored to meet the requirements of U.S. national
interests. The center tracks icebergs using remotely sensed data provided
in-part by satellites operated by NOAA and the Department of Defense.
National
Ice Center
NOAA
Press Release-
THREE
NEW ICEBERGS IN ANTARCTICA
NOAA
image from The University of Wisconsin
5/10/2000-Three massive
icebergs have calved from the Ronne Ice Shelf in the Weddell Sea. The dimensions
and center point locations of the icebergs are as follows:
A-43A: 107x21 Statute Miles (168x33KM)
centered at: 7510S 05858W
A-43B: 53x23 Statute Miles (84x35KM)
centered at: 7657S 05513W
A-44: 41x20 Statute Miles (60x32KM)
centered at: 7624S 05326W
NOAA
Image 5/7/2000
|
Iceberg
A-43 was detected using the Defense Meteorological Satellite Program’s Optical
Linescan Sensor (DMSP OLS) infrared imagery on May 5th 2000. It is
known to have calved from the Ronne Ice Shelf sometime during the afternoon or
evening of May 4th 2000, as satellite imagery indicates that the ice
shelf was still intact on the morning of May 4th. Iceberg A-44 calved in the
afternoon or evening of May 6th, at or near the time that A-43 broke
in half.The National Ice Center, located in Suitland, Maryland, is a tri-agency
operational activity with representation from the U.S. Navy, NOAA, and the U.S.
Coast Guard. Its mission is to provide worldwide operational sea ice analyses
and forecasts tailored to meet the requirements of U.S. national interests. The
Center tracks icebergs using remotely sensed data provided in-part by satellites
operated by the National Oceanic and Atmospheric Administration (NOAA) and the
Department of Defense.
|
|
Iceberg names are derived from
the Antarctic quadrant in which they were originally sighted. The quadrants are
divided counter-clockwise in the following manner:
A = 0 to 90 degrees
West longitude (Bellinghausen/Weddell Sea)
B = 90 West to 180 (Amundsen/Eastern
Ross Sea)
C = 180 to 90 East
(Western Ross Sea/Wilkesland)
D = 90 East to 0
(Amery/Eastern Weddell Sea)
When an iceberg is first
sighted, the National Ice Center documents its point of origin. The letter of
the quadrant, along with a sequential number, is assigned to the iceberg. For
example, A-44 is the 44th iceberg the ice center has found in the
Antarctica in Quadrant A.
Four
Icebergs in Antarctica 4/20/2000-
four separate icebergs are
now drifting off from Antarctica. The latest images show them as B-15,B-16,B-17
and B-18. 
NOAA
image from The University of Wisconsin
Another
Massive
Iceberg Breaks Away From Antarctica
MADISON,
WISCONSIN 4/1/2000-A
second giant iceberg has broken off from Antarctica and is bumping into a huge
iceberg that broke off the Ross Ice Shelf March 22, researchers said on Friday.
Matthew
Lazzara of the University of Wisconsin's Antarctic Meteorological Research
Center found the latest iceberg, which will be named B-17, while scanning images
taken from a satellite orbiting the poles.
He
said the new iceberg lies to the north and east of Roosevelt Island and is 80
miles by 12 miles. The larger iceberg is 183 miles by 23 miles, roughly the size
of Jamaica.
``The
high-resolution satellite data that we receive enables us to track these bergs
easily, at least in clear conditions,'' Lazzara said in a statement.
The
big iceberg has been named B-15 by the National Ice Center
The
smaller nearby iceberg has been named B-16
|
MADISON,
WISCONSIN March 22,2000 --
A
super iceberg, perhaps the biggest recorded in the satellite era, is breaking
off Antarctica's Ross Ice Shelf, drawing attention to concerns about the polar
ice melt it was first reported by The University of Wisconsin. The image,
taken from 700 kilometers in space by the National Oceanic and Atmospheric
Administration's NOAA-12 polar-orbiting satellite, shows the iceberg's margins
as it breaks free from the Ross marine ice shelf. The iceberg, measuring 295
kilometers in length and 37 kilometers wide, encompasses an area of about 11,000
square kilometers, roughly twice the size of Delaware or half the size of Wales
The
school's Antarctic Meteorological Research Center said Wednesday that polar
satellites clearly show the fissures outlining the oblong chunk of ice 183 miles
long and 22 miles wide.
"This is a very big iceberg, close to a record if not a new record,"
said Matthew Lazzara, a scientist at the center. "It's not often you see
them of this magnitude."
The
center said the new berg may be adrift soon in the Ross Sea, but no information
was available on whether it might pose a shipping hazard.
|
NOAA
image fromThe University of Wisconsin
|
|
Iceberg
B-15 Breaks In Half
NOAA
image from The University of Wisconsin
ATSR
ESA Image 5/23/2000
The
ATSR (Along Track Scanning Radiometer) instruments produce infrared images of
the Earth at a spatial resolution of one kilometre. The data from these
instruments is useful for scientific studies of the land surface, atmosphere,
clouds, oceans, and the cryosphere. The first ATSR instrument was launched on
board the ERS-1 satellite in July 1991 as part of the European Space Agency (ESA)
Earth Observation Programme.
|
