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Earth ObservationNASA

Published 27d ago

Guinea-Bissau Tidal Waters

The shifting landmasses affect the archipelago's environmental characteristics and how its waters are navigated.

Image captured on November 28, 2025
Bijagós Archipelago has 88 islands and islets
Tides ebb and flow twice each day through sandy channels, mudflats, and mangrove forests
Around low tide, intertidal mudflats and sandflats emerge from the sea, causing islands to visibly grow and shrink

Earth ObservationLandsat 9

Published 27d agoEvent Jul 12

A Bare Summer for Barnes Ice Cap

Loss of reflective snow allows darker ice to absorb more heat, accelerating melting. This causes meltwater to drain away instead of refreezing, reducing overall ice mass.

Images acquired by Landsat 9's Operational Land Imager on July 12, 2026, showed bare ice, vivid blue meltwater pools, and extensive drainage channels.
Glaciologist Mauri Pelto noted that mid-July snow loss on the ice cap was the earliest recorded.
Early exposure of darker bare ice accelerates solar absorption and meltwater runoff.

Earth ObservationLandsat 9

Published 11d agoEvent Jun 12

An Uncommon Drifter in the Denmark Strait

Because the iceberg is disintegrating in the Denmark Strait, it is unlikely to drift into busier shipping lanes near southern Greenland.

The iceberg measured roughly 17 square kilometers (7 square miles) on June 12, 2026, approximately five times the size of Central Park.
The berg originated in northeastern Greenland's Jøkelbugten bay, likely calving from a remnant ice shelf adjacent to Zachariæ Isstrøm.
By mid-August 2026, the iceberg had drifted about 1,500 kilometers south along the Greenland Coastal Current into the North Atlantic.
Ice experts from the Danish Meteorological Institute and International Ice Patrol tracked the berg's gradual disintegration in the Denmark Strait.

Earth ObservationLandsat 8

Published 20d agoEvent Mar 18

Bountiful Roebuck Bay

The area's high productivity supports critical marine nurseries and serves as an essential stopover for hundreds of thousands of migratory birds.

Image captured on March 18, 2026, using the Operational Land Imager (OLI) aboard Landsat 8.
Shows intertidal mudflats, dynamic mangrove expansion westward by nearly 2 meters per year, and linear tidal creeks in Roebuck Bay.
Roebuck Bay experiences tidal ranges up to 9 meters (30 feet) due to northwestern Australia's wide continental shelf.

Activity & Events

Earth ObservationNASA

Published 27d ago

Guinea-Bissau Tidal Waters

The shifting landmasses affect the archipelago's environmental characteristics and how its waters are navigated.

Image captured on November 28, 2025
Bijagós Archipelago has 88 islands and islets
Tides ebb and flow twice each day through sandy channels, mudflats, and mangrove forests
Around low tide, intertidal mudflats and sandflats emerge from the sea, causing islands to visibly grow and shrink

Earth ObservationLandsat 9

Published 27d agoEvent Jul 12

A Bare Summer for Barnes Ice Cap

Loss of reflective snow allows darker ice to absorb more heat, accelerating melting. This causes meltwater to drain away instead of refreezing, reducing overall ice mass.

Images acquired by Landsat 9's Operational Land Imager on July 12, 2026, showed bare ice, vivid blue meltwater pools, and extensive drainage channels.
Glaciologist Mauri Pelto noted that mid-July snow loss on the ice cap was the earliest recorded.
Early exposure of darker bare ice accelerates solar absorption and meltwater runoff.

Earth ObservationLandsat 9

Published 11d agoEvent Jun 12

An Uncommon Drifter in the Denmark Strait

Because the iceberg is disintegrating in the Denmark Strait, it is unlikely to drift into busier shipping lanes near southern Greenland.

The iceberg measured roughly 17 square kilometers (7 square miles) on June 12, 2026, approximately five times the size of Central Park.
The berg originated in northeastern Greenland's Jøkelbugten bay, likely calving from a remnant ice shelf adjacent to Zachariæ Isstrøm.
By mid-August 2026, the iceberg had drifted about 1,500 kilometers south along the Greenland Coastal Current into the North Atlantic.
Ice experts from the Danish Meteorological Institute and International Ice Patrol tracked the berg's gradual disintegration in the Denmark Strait.

Earth ObservationLandsat 8

Published 20d agoEvent Mar 18

Bountiful Roebuck Bay

The area's high productivity supports critical marine nurseries and serves as an essential stopover for hundreds of thousands of migratory birds.

Image captured on March 18, 2026, using the Operational Land Imager (OLI) aboard Landsat 8.
Shows intertidal mudflats, dynamic mangrove expansion westward by nearly 2 meters per year, and linear tidal creeks in Roebuck Bay.
Roebuck Bay experiences tidal ranges up to 9 meters (30 feet) due to northwestern Australia's wide continental shelf.