|
|
Lambert Glacier and Amery Ic
…
The Lambert Glacier, seen in
…
2/20/01
| Date |
2/20/01 |
| Description |
The Lambert Glacier, seen in the center of this image, is one of the largest and longest of Antarctica's glaciers. It drains about 900,000 square kilometers (560,000 square miles) of East Antarctica. On the southern half of the image, several smaller ice streams, channeled by numerous exposed mountains including the Mawson Escarpment to the east, merge into the Lambert, which broadens as it eventually flows into the ocean and forms the Amery Ice Shelf. The Lambert has clearly visible surface flowlines, which extend hundreds of kilometers into the interior. In the center section, isolated features on the ice shelf that appear bright in the radar image are likely due to past occurrences of surface meltwater accumulating into small lakes and troughs. This mosaic was derived from RADARSAT imagery obtained during the 1997 Antarctic Mapping Mission and shows an area approximately 900 kilometers by 675 kilometers (560 by 415 miles). The Lambert Glacier is centered at approximately 72 degrees south latitude and 67.5 degrees east longitude. The Antarctic Mapping Mission is a joint project between NASA and the Canadian Space Agency. The project is led by Ohio State University in Columbus in partnership with the Alaska Synthetic Aperture Radar (SAR) Facility at the University of Alaska Fairbanks, NASA's Jet Propulsion Laboratory, Pasadena, Calif., and the Vexcel Corporation, Boulder, Colo. The Canadian Space Agency's RADARSAT-1 satellite carries a synthetic aperture radar, an imaging radar sensor that operates at C-band (5.3 GHz frequency) with horizontal transmit-horizontal receive polarization from an orbital altitude of about 800 kilometers (500 miles). The 1997 Antarctic Mapping Mission took place between Sept. 19 and Oct. 14 and mapped the entire Antarctic continent. The 2000 Antarctic Mapping Mission lasted from Sept. 3 to Nov. 4 and obtained complete coverage of Antarctica north of 82 degrees south latitude. Photo Credit: Canadian Space Agency/NASA/Ohio State University, Jet Propulsion Laboratory, Alaska SAR facility # # # # # |
|
Weddell Sea/ScanSAR
Two radar images are shown i
…
10/26/95
| Date |
10/26/95 |
| Description |
Two radar images are shown in this composite to compare the size of a standard spaceborne radar image (small inset) to the image that is created when the radar instrument is used in the ScanSAR mode (large image). The predominant image shows two large ocean circulation features, called eddies, at the northernmost edge of the sea ice pack in the Weddell Sea, off Antarctica. The eddy processes in this region play an important role in the circulation of the global ocean and the transportation of heat toward the pole. The large image is the first wide-swath, multi- frequency, multi-polarization radar image ever processed. To date, no other spaceborne radar sensors have obtained swaths exceeding 100 kilometers (62 miles) in width. This developmental image was produced at NASA's Jet Propulsion Laboratory by the Alaska SAR Facility's ScanSAR processor system, using radar data obtained on October 5, 1994, during the second flight of the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar (SIR- C/X-SAR) onboard the space shuttle Endeavour. The image is oriented approximately east-west, with a center location of around 56.6 degrees south latitude and 6.5 degrees west longitude. Image dimensions are 240 km by 350 km (149 miles by 218 miles). The smaller image inset (upper right edge) was obtained by SIR-C/X-SAR on October 6, 1994, and covers a portion of the same ice features that are shown in the large image. The inset image dimensions are 18 km by 50 km (11 miles by 31 miles). The ocean eddies have a clockwise (or cyclonic) rotation and are roughly 40 km to 60 km (25 miles to 37 miles) in diameter. The dark areas are new ice and the lighter green areas are small sea- ice floes that are swept along by surface currents, both of these areas are shown within the eddies and to the south of the eddies. First year seasonal ice, typically 0.5 meter to 0.8 meter (1.5 feet to 2.5 feet) thick, is shown in the darker green area in the lower right corner. The open ocean to the north is uniformly bright and appears blue, due to high winds making the surface rough. The colors in both images were obtained using the following radar channels: red is C-band vertically transmitted and vertically received, green is L-band horizontally transmitted and vertically received, and blue is L-band vertically transmitted and vertically received. The ScanSAR processor is being designed for implementation in 1996 at NASA's Alaska SAR Facility, located at the University of Alaska, Fairbanks, and will produce digital images from the forthcoming Canadian RADARSAT satellite, since its C-band horizontally transmitted, horizontally received polarization radar routinely obtains data over a considerable range of swath-widths and resolutions, including the important wide-swath (300 km to 500 km/186 miles to 310 miles) mode. ##### |
|
Antarctic Peninsula
The Antarctica Peninsula is
…
2/20/01
| Date |
2/20/01 |
| Description |
The Antarctica Peninsula is the furthest north extension of the Antarctic continent and is exposed to slightly warmer climate conditions than the greater continent. This mosaic from the 2000 Antarctic Mapping Mission shows most of the peninsula. The blue line is the coastline seen in the 1997 Antarctic Mapping Mission. The broad Larsen Ice Shelf lies to the east, extending into the Weddell Sea, and smaller ice shelves including the Wordie and George VI are in the southwest corner. The northern Larsen Shelf has been retreating since the 1960s, with major collapses in the 1990s. Warming in both the air and ocean underlying the ice shelves leads to increased fracturing and eventually calving of the ice shelf fronts into icebergs. The 1995 Larsen calving events were due to anomalously warm summer temperatures in the early 1990s. The warming noted in the Antarctica Peninsula, as measured from several research stations located there, is not sufficient to affect the thicker and more extensive West Antarctic ice shelves to the south on the main continent. The two RADARSAT mosaics from 1997 and 2000 Antarctic imaging campaigns provide highly accurate snapshots of this rapidly changing region of the greater Antarctic continent. The Antarctic Mapping Mission is a joint project between NASA and the Canadian Space Agency. The project is led by Ohio State University in Columbus in partnership with the Alaska Synthetic Aperture Radar (SAR) Facility at the University of Alaska Fairbanks, NASA's Jet Propulsion Laboratory, Pasadena, Calif., and the Vexcel Corporation, Boulder, Colo. The Canadian Space Agency's RADARSAT-1 satellite carries a synthetic aperture radar, an imaging radar sensor that operates at C-band (5.3 GHz frequency) with horizontal transmit-horizontal receive polarization from an orbital altitude of about 800 kilometers (500 miles. The 1997 Antarctic Mapping Mission took place between Sept. 19 and Oct. 14 and mapped the entire Antarctic continent. The 2000 Antarctic Mapping Mission lasted from Sept. 3 to Nov. 4 and obtained complete coverage of Antarctica north of 82 degrees south latitude. Photo Credit: Canadian Space Agency/NASA/Ohio State University, Jet Propulsion Laboratory, Alaska SAR Facility # # # # # |
|
Larsen Ice Shelf
This sub-image of the Antarc
…
2/20/01
| Date |
2/20/01 |
| Description |
This sub-image of the Antarctic Peninsula from the 2000 Antarctic Mapping Mission focuses on the northern end of the Larsen Ice Shelf. The blue line shows the coastline in 1997, the red line in 1992, based on synthetic aperture radar imagery from the European Space Agency, and the yellow line in the mid-1970s. The northern Larsen has been retreating since the 1960s, with major collapses in the 1990s. The southern Larsen was advancing until a major collapse in 1995. Small areas, however, also show advancement since 1997, including a section near the Sobral Peninsula in the center of the image. These advancements may indicate early rebuilding of the overall extent of the Larsen Shelf. The two RADARSAT mosaics from 1997 and 2000 Antarctic imaging campaigns provide highly accurate snapshots of this rapidly changing region of the greater Antarctic continent. The Antarctic Mapping Mission is a joint project between NASA and the Canadian Space Agency. The project is led by Ohio State University in Columbus in partnership with the Alaska Synthetic Aperture Radar (SAR) Facility at the University of Alaska Fairbanks, NASA's Jet Propulsion Laboratory, Pasadena, Calif., and the Vexcel Corporation, Boulder, Colo. The Canadian Space Agency's RADARSAT-1 satellite carries a synthetic aperture radar, an imaging radar sensor that operates at C-band (5.3 GHz frequency) with horizontal transmit-horizontal receive polarization from an orbital altitude of about 800 kilometers (500 miles). The 1997 Antarctic Mapping Mission took place between Sept. 19 and Oct. 14 and mapped the entire Antarctic continent. The 2000 Antarctic Mapping Mission lasted from Sept. 3 to Nov. 4 and obtained complete coverage of Antarctica north of 82 degrees south latitude. Photo Credit: Canadian Space Agency/NASA/Ohio State University, Jet Propulsion Laboratory, Alaska SAR Facility # # # # # |
|
L-Band West Texas
This radar image of the Midl
…
6/22/95
| Date |
6/22/95 |
| Description |
This radar image of the Midland/Odessa region of West Texas, demonstrates an experimental technique, called ScanSAR, that allows scientists to rapidly image large areas of the Earth's surface. The large image covers an area 245 kilometers by 225 kilometers (152 miles by 139 miles). It was obtained by the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR- C/X-SAR) flying aboard the space shuttle Endeavour on October 5, 1994. The smaller inset image is a standard SIR-C image showing a portion of the same area, 100 kilometers by 57 kilometers (62 miles by 35 miles) and was taken during the first flight of SIR-C on April 14, 1994. The bright spots on the right side of the image are the cities of Odessa (left) and Midland (right), Texas. The Pecos River runs from the top center to the bottom center of the image. Along the left side of the image are, from top to bottom, parts of the Guadalupe, Davis and Santiago Mountains. North is toward the upper right. Unlike conventional radar imaging, in which a radar continuously illuminates a single ground swath as the space shuttle passes over the terrain, a Scansar radar illuminates several adjacent ground swaths almost simultaneously, by "scanning" the radar beam across a large area in a rapid sequence. The adjacent swaths, typically about 50 km (31 miles) wide, are then merged during ground processing to produce a single large scene. Illumination for this L-band scene is from the top of the image. The beams were scanned from the top of the scene to the bottom, as the shuttle flew from left to right. This scene was acquired in about 30 seconds. A normal SIR- C image is acquired in about 13 seconds. The ScanSAR mode will likely be used on future radar sensors to construct regional and possibly global radar images and topographic maps. The ScanSAR processor is being designed for 1996 implementation at NASA's Alaska SAR Facility, located at the University of Alaska Fairbanks, and will produce digital images from the forthcoming Canadian RADARSAT satellite. Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves, allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: L-band (24 cm), C-band (6 cm) and X- band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.v.(DLR), the major partner in science, operations, and data processing of X-SAR. ##### |
|
Lambert Glacier Velocity Map
This image shows the movemen
…
2/20/01
| Date |
2/20/01 |
| Description |
This image shows the movement of the Lambert Glacier. The ice velocity vectors were obtained by using RADARSAT SAR imagery from the 2000 Antarctic Mapping Mission. Yellow represents the areas of no motion, which are either exposed land or stationary ice. The smaller confluent glaciers have generally low velocities, shown in green, of 100-300 meters (330-980 feet) per year, which gradually increase as they flow down the rapidly changing continental slope into the upper reaches of the faster flowing Lambert Glacier. Most of the Lambert Glacier itself has velocities between 400-800 meters (1,310-2,620 feet) per year, with a slight slowing in the middle section. As the glacier extends across Amery Ice Shelf, velocities increase to 1000-1200 meters (3,280-3,937 feet) per year as the ice sheet spreads out and thins. Only a handful of in-situ velocity measurements have been previously reported of this huge glacier system. While the in-situ and radar-derived measurements appear to be qualitatively similar, the extent and accuracy of the new measurements are unprecedented and provide quantitative baselines for future comparisons. The ice velocities are obtained from pairs of images obtained 24 days apart, using a technique called radar interferometry. This technique enables a highly precise alignment of image pairs that provides accurate measurements of topography as well as surfaces that have changed or moved over the short time interval, including glaciers. The Antarctic Mapping Mission is a joint project between NASA and the Canadian Space Agency. The project is led by Ohio State University in Columbus in partnership with the Alaska Synthetic Aperture Radar (SAR) Facility at the University of Alaska Fairbanks, NASA's Jet Propulsion Laboratory, Pasadena, Calif., and the Vexcel Corporation, Boulder, Colo. The Canadian Space Agency's RADARSAT-1 satellite carries a synthetic aperture radar, an imaging radar sensor that operates at C-band (5.3 GHz frequency) with horizontal transmit-horizontal receive polarization from an orbital altitude of about 800 kilometers (500 miles). The 1997 Antarctic Mapping Mission took place between Sept. 19 and Oct. 14 and mapped the entire Antarctic continent. The 2000 Antarctic Mapping Mission lasted from Sept. 3 to Nov. 4 and obtained complete coverage of Antarctica north of 82 degrees south latitude. Photo Credit: Canadian Space Agency/NASA/Ohio State University, Jet Propulsion Laboratory, Alaska SAR facility # # # # # |
|
Antarctica: Allen Hills Fly
…
| Title |
Antarctica: Allen Hills Fly Over |
| Abstract |
RADARSAT lets Scientist see the frozen continent. |
| Completed |
1999-11-08 |
|
Antarctica: Allen Hills Fly
…
| Title |
Antarctica: Allen Hills Fly Over |
| Abstract |
RADARSAT lets Scientist see the frozen continent. |
| Completed |
1999-11-08 |
|
Antarctica: Allen Hills Fly
…
| Title |
Antarctica: Allen Hills Fly Over |
| Abstract |
RADARSAT lets Scientist see the frozen continent. |
| Completed |
1999-11-08 |
|
Antarctica: Allen Hills Fly
…
| Title |
Antarctica: Allen Hills Fly Over |
| Abstract |
RADARSAT lets Scientist see the frozen continent. |
| Completed |
1999-11-08 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: Antarctica, from Coast to Coast |
| Abstract |
ICESat's first topographic profiles across the continent reveal the textured surfaces of Antarctic ice sheets in unprecedented detail. The following profile spans the entire Antarctic continent from coast to coast. The transect begins near Wrigley Gulf, crosses the Ross Ice Shelf and central Antarctica, finally tapering off at the Amery Ice Shelf. The high flat area in the center of the continent is called the East Antarctic plateau. |
| Completed |
2003-05-23 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: Antarctica, from Coast to Coast |
| Abstract |
ICESat's first topographic profiles across the continent reveal the textured surfaces of Antarctic ice sheets in unprecedented detail. The following profile spans the entire Antarctic continent from coast to coast. The transect begins near Wrigley Gulf, crosses the Ross Ice Shelf and central Antarctica, finally tapering off at the Amery Ice Shelf. The high flat area in the center of the continent is called the East Antarctic plateau. |
| Completed |
2003-05-23 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: Antarctica, from Coast to Coast |
| Abstract |
ICESat's first topographic profiles across the continent reveal the textured surfaces of Antarctic ice sheets in unprecedented detail. The following profile spans the entire Antarctic continent from coast to coast. The transect begins near Wrigley Gulf, crosses the Ross Ice Shelf and central Antarctica, finally tapering off at the Amery Ice Shelf. The high flat area in the center of the continent is called the East Antarctic plateau. |
| Completed |
2003-05-23 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: Antarctica, from Coast to Coast |
| Abstract |
ICESat's first topographic profiles across the continent reveal the textured surfaces of Antarctic ice sheets in unprecedented detail. The following profile spans the entire Antarctic continent from coast to coast. The transect begins near Wrigley Gulf, crosses the Ross Ice Shelf and central Antarctica, finally tapering off at the Amery Ice Shelf. The high flat area in the center of the continent is called the East Antarctic plateau. |
| Completed |
2003-05-23 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: Antarctica, from Coast to Coast |
| Abstract |
ICESat's first topographic profiles across the continent reveal the textured surfaces of Antarctic ice sheets in unprecedented detail. The following profile spans the entire Antarctic continent from coast to coast. The transect begins near Wrigley Gulf, crosses the Ross Ice Shelf and central Antarctica, finally tapering off at the Amery Ice Shelf. The high flat area in the center of the continent is called the East Antarctic plateau. |
| Completed |
2003-05-23 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: Antarctica, from Coast to Coast |
| Abstract |
ICESat's first topographic profiles across the continent reveal the textured surfaces of Antarctic ice sheets in unprecedented detail. The following profile spans the entire Antarctic continent from coast to coast. The transect begins near Wrigley Gulf, crosses the Ross Ice Shelf and central Antarctica, finally tapering off at the Amery Ice Shelf. The high flat area in the center of the continent is called the East Antarctic plateau. |
| Completed |
2003-05-23 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: Antarctica, from Coast to Coast |
| Abstract |
ICESat's first topographic profiles across the continent reveal the textured surfaces of Antarctic ice sheets in unprecedented detail. The following profile spans the entire Antarctic continent from coast to coast. The transect begins near Wrigley Gulf, crosses the Ross Ice Shelf and central Antarctica, finally tapering off at the Amery Ice Shelf. The high flat area in the center of the continent is called the East Antarctic plateau. |
| Completed |
2003-05-23 |
|
Antarctica: Larsen Pre-shot
…
| Title |
Antarctica: Larsen Pre-shot (with box) |
| Abstract |
This animation was used with the Larsen Ice Shelf images in animation #1400. |
| Completed |
1999-11-08 |
|
Antarctica: Fimbul Ice Shelf
…
| Title |
Antarctica: Fimbul Ice Shelf Preview |
| Completed |
1999-11-08 |
|
Another View of Snow Dunes
| Title |
Another View of Snow Dunes |
| Abstract |
A close-up view of a field of snow dunes, then pulling back to show regions of the dunes across the continent. |
| Completed |
1999-11-08 |
|
Another View of Snow Dunes
| Title |
Another View of Snow Dunes |
| Abstract |
A close-up view of a field of snow dunes, then pulling back to show regions of the dunes across the continent. |
| Completed |
1999-11-08 |
|
Another View of Snow Dunes
| Title |
Another View of Snow Dunes |
| Abstract |
A close-up view of a field of snow dunes, then pulling back to show regions of the dunes across the continent. |
| Completed |
1999-11-08 |
|
Another View of Snow Dunes
| Title |
Another View of Snow Dunes |
| Abstract |
A close-up view of a field of snow dunes, then pulling back to show regions of the dunes across the continent. |
| Completed |
1999-11-08 |
|
Antarctica: Fimbul Ice Shelf
…
| Title |
Antarctica: Fimbul Ice Shelf Fly-over |
| Completed |
1999-11-08 |
|
Antarctica: Fimbul Ice Shelf
…
| Title |
Antarctica: Fimbul Ice Shelf Fly-over |
| Completed |
1999-11-08 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: A Closer View of the Coast |
| Abstract |
Elevation data from ICESat's GLAS instrument is quite detailed, as can be seen in this close-up view of a profile that passes near the Banzare Coast in Antarctica. (The green elevation profile in this animation is exaggerated vertically by a factor of 10x for aesthetic purposes.) |
| Completed |
2003-05-23 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: A Closer View of the Coast |
| Abstract |
Elevation data from ICESat's GLAS instrument is quite detailed, as can be seen in this close-up view of a profile that passes near the Banzare Coast in Antarctica. (The green elevation profile in this animation is exaggerated vertically by a factor of 10x for aesthetic purposes.) |
| Completed |
2003-05-23 |
|
ICESat First Light Release:
…
| Title |
ICESat First Light Release: A Closer View of the Coast |
| Abstract |
Elevation data from ICESat's GLAS instrument is quite detailed, as can be seen in this close-up view of a profile that passes near the Banzare Coast in Antarctica. (The green elevation profile in this animation is exaggerated vertically by a factor of 10x for aesthetic purposes.) |
| Completed |
2003-05-23 |
|
Pine Island Iceberg Formatio
…
| Title |
Pine Island Iceberg Formation |
| Abstract |
This animation is a sequence showing the formation of the Pine Island iceberg and the glacial seaward flow upstream from the crack. It is a series of MISR images from the Terra satellite on top of the continental Radarsat view of Antarctica. The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. |
| Completed |
2002-01-15 |
|
Pine Island Iceberg Formatio
…
| Title |
Pine Island Iceberg Formation |
| Abstract |
This animation is a sequence showing the formation of the Pine Island iceberg and the glacial seaward flow upstream from the crack. It is a series of MISR images from the Terra satellite on top of the continental Radarsat view of Antarctica. The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. |
| Completed |
2002-01-15 |
|
Pine Island Iceberg Formatio
…
| Title |
Pine Island Iceberg Formation |
| Abstract |
This animation is a sequence showing the formation of the Pine Island iceberg and the glacial seaward flow upstream from the crack. It is a series of MISR images from the Terra satellite on top of the continental Radarsat view of Antarctica. The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. |
| Completed |
2002-01-15 |
|
Pine Island Iceberg Formatio
…
| Title |
Pine Island Iceberg Formation |
| Abstract |
This animation is a sequence showing the formation of the Pine Island iceberg and the glacial seaward flow upstream from the crack. It is a series of MISR images from the Terra satellite on top of the continental Radarsat view of Antarctica. The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. |
| Completed |
2002-01-15 |
|
East Antarctic Ice Streams #
…
| Title |
East Antarctic Ice Streams #2 |
| Completed |
1999-11-08 |
|
Pine Island Iceberg Formatio
…
| Title |
Pine Island Iceberg Formation |
| Abstract |
This animation is a sequence showing the formation of the Pine Island iceberg and the glacial seaward flow upstream from the crack. It is a series of MISR images from the Terra satellite on top of the continental Radarsat view of Antarctica. The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. |
| Completed |
2002-01-15 |
|
East Antarctic Ice Streams #
…
| Title |
East Antarctic Ice Streams #2 |
| Completed |
1999-11-08 |
|
Pine Island Iceberg Formatio
…
| Title |
Pine Island Iceberg Formation |
| Abstract |
This animation is a sequence showing the formation of the Pine Island iceberg and the glacial seaward flow upstream from the crack. It is a series of MISR images from the Terra satellite on top of the continental Radarsat view of Antarctica. The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. |
| Completed |
2002-01-15 |
|
Pine Island Iceberg Formatio
…
| Title |
Pine Island Iceberg Formation |
| Abstract |
This animation is a sequence showing the formation of the Pine Island iceberg and the glacial seaward flow upstream from the crack. It is a series of MISR images from the Terra satellite on top of the continental Radarsat view of Antarctica. The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. |
| Completed |
2002-01-15 |
|
Pine Island Iceberg Formatio
…
| Title |
Pine Island Iceberg Formation |
| Abstract |
This animation is a sequence showing the formation of the Pine Island iceberg and the glacial seaward flow upstream from the crack. It is a series of MISR images from the Terra satellite on top of the continental Radarsat view of Antarctica. The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. |
| Completed |
2002-01-15 |
|
Pine Island Iceberg Formatio
…
| Title |
Pine Island Iceberg Formation |
| Abstract |
This animation is a sequence showing the formation of the Pine Island iceberg and the glacial seaward flow upstream from the crack. It is a series of MISR images from the Terra satellite on top of the continental Radarsat view of Antarctica. The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. |
| Completed |
2002-01-15 |
|
Moving Along Antarctica to t
…
| Title |
Moving Along Antarctica to the South Pole |
| Abstract |
This animation was originally grouped with animation #1005. |
| Completed |
1999-11-08 |
|
Prelude and South Pole
| Title |
Prelude and South Pole |
| Abstract |
This animation was released for two separate stories. The first release was of the first 15 seconds (450 frames) as 'Prelude to Antarctica' and is stored in our database as animation 988. The entire animation was released as 'Tour of South Pole' and appears here. The animation was created by laying the Pathfinder data over the globe, RADARSAT data over Antarctica, and the South Pole inset at the South Pole. |
| Completed |
1999-11-08 |
|
Prelude and South Pole
| Title |
Prelude and South Pole |
| Abstract |
This animation was released for two separate stories. The first release was of the first 15 seconds (450 frames) as 'Prelude to Antarctica' and is stored in our database as animation 988. The entire animation was released as 'Tour of South Pole' and appears here. The animation was created by laying the Pathfinder data over the globe, RADARSAT data over Antarctica, and the South Pole inset at the South Pole. |
| Completed |
1999-11-08 |
|
East Antarctic Ice Streams #
…
| Title |
East Antarctic Ice Streams #1 |
| Completed |
1999-11-08 |
|
East Antarctic Ice Streams #
…
| Title |
East Antarctic Ice Streams #1 |
| Completed |
1999-11-08 |
|
McMurdo Station, Mt. Erebus
| Title |
McMurdo Station, Mt. Erebus |
| Completed |
1999-11-08 |
|
McMurdo Station, Mt. Erebus
| Title |
McMurdo Station, Mt. Erebus |
| Completed |
1999-11-08 |
|
McMurdo Station, Mt. Erebus
| Title |
McMurdo Station, Mt. Erebus |
| Completed |
1999-11-08 |
|
Larsen Ice Shelf Zoom
| Title |
Larsen Ice Shelf Zoom |
| Completed |
2001-02-01 |
|
Larsen Ice Shelf Zoom
| Title |
Larsen Ice Shelf Zoom |
| Completed |
2001-02-01 |
|
Larsen Ice Shelf Zoom
| Title |
Larsen Ice Shelf Zoom |
| Completed |
2001-02-01 |
|
|
