<\/p>\n
Editor\u2019s Note: Today\u2019s story is the answer to the August Puzzler<\/a>.<\/em><\/p>\nTides are among the clearest signs of the Moon\u2019s pull on Earth. Just 239,000 miles<\/a> (385,000 kilometers) away, the Moon\u2019s gravity<\/a> pulls on Earth\u2019s oceans<\/a> and solid crust<\/a>, subtly distorting them into a more oblong shape with bulges<\/a> roughly extending toward and away from the Moon.<\/p>\nHigh tides happen throughout Earth\u2019s oceans, but in some places they leave an unusually strong fingerprint on the landscape. Among those places is Roebuck Bay, a crescent-shaped feature in the Kimberley region of Western Australia.<\/p>\nRoebuck Bay\u2019s tidal range can reach a remarkable 9 meters (30 feet). Rising and falling tides repeatedly inundate and expose expansive mudflats, flood broad mangrove forests and salt marshes, and feed branching networks of tidal drainage channels. Many parts of Australia have tidal ranges of 2 meters or less<\/a>. But the large range at Roebuck Bay is mostly a consequence of northwestern Australia\u2019s unusually wide, shallow continental shelf<\/a>, which helps amplify tides as they approach the coast.<\/p>\nThe image at the top of the page shows the bay on March 18, 2026, when water levels were high. Green mangrove<\/a> forests grow thickly along the shoreline and line the mouths of a network of evenly spaced, linear tidal creeks. These mangrove forests are dynamic. Analysis<\/a> of decades of Landsat observations shows them expanding westward<\/a> by nearly 2 meters per year as sediment<\/a> from the waterways to the east accumulates in the sheltered bay.<\/p>\nFarther inland, branching networks of tidal drainage channels connect with the tidal creeks, giving the bay its feathered appearance. These channels, partially obscured by thick vegetation in March, were more visible earlier and later in the year, when vegetation was thinner.<\/p>\n\n\n\n<\/a><\/figure>\nAround Roebuck Bay, inland vegetation greens after monsoon rains, peaking in March, and turns brown and dry by June. The Landsat<\/a> 8 and 9 satellites captured these images throughout 2026.<\/div>\nNASA Earth Observatory \/ Lauren Dauphin<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\nMonsoonal rains, typically falling between December and March, transform the landscape around the bay into lush grasslands and seasonal wetlands. As the rains fade in May and June and the dry season takes hold, these ephemeral grasses and sedge ecosystems die back, turning the landscape shades of gold and brown. The consistent spacing of the tidal creeks is likely not a tidal effect; it appears to be influenced by the regular spacing of linear dunes in the broader region, as seen in the plains to the east<\/a>.<\/p>\nThe bay\u2019s dramatic tidal and seasonal changes are striking from above, and they also support a bounty of life on the ground. The mangroves serve as nurseries for crustaceans and fish, and the mudflats teem with dozens of types of invertebrates, including snails, worms, crabs, clams, and cockles. Shells and snails can reach an abundance of 2,500 per square meter<\/a>, according to the Australian government.<\/p>\nThis bounty of marine life is a major draw for birds. The bay, one of the most important sites for migratory birds in Australia and a key stop on the East Asian-Australasian Flyway<\/a>, regularly hosts hundreds of thousands of birds, including plovers, godwits, and knots.<\/p>\n<\/div>\nNASA Earth Observatory images by Lauren Dauphin, using Landsat data from the\u00a0<\/em>U.S. Geological Survey<\/em><\/a>.<\/em> Story by Adam Voiland.<\/em><\/p>\n\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJanuary 29, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.65 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nMarch 18, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.41 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJune 20, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.61 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources <\/h2>\n\nBirdlife International (2026) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrockmann Consult (2025) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrocx, M., via Researchgate (2016) Roebuck Plains, north-western Australia \u2013 a major Holocene carbonate mud deposit of international geoheritage significance<\/a>. Accessed August 10, 2026.<\/li>\nBroome Bird Observatory, A Special Place for Birds<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Climate Change, Energy, the Environment and Water (2025, December 15) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Environment and Conservation (2009) Ecological Character Description for Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nHickey, R. (2019) Tidal inundation modeling within GIS<\/a>. Journal of Coastal Conservation<\/em>, 23, 599\u2013606.<\/li>\nMarine Waters (2020, May 12) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nNASA (2019, June 27) More than Naught: The \u201cZ\u201d of Where Land Meets Sea<\/a>. Accessed August 10, 2026.<\/li>\nNASA Earth Observatory (2016, February 15) Compelling Coastline along Roebuck Bay<\/a>. Accessed August 10, 2026. <\/li>\nNanson, R., et al.<\/em> (2022) Geomorphic insights into Australia\u2019s coastal change using a national dataset derived from the multi-decadal Landsat archive<\/a>. Estuarine, Coastal and Shelf Science<\/a>, <\/em>265, 107712.<\/li>\nPiersma, T., et al.<\/em> (2016) Anna Plains and Roebuck Bay Benthic Invertebrate Mapping 2016<\/a>. AnnRoeBIM16<\/em>, 96.<\/li>\n<\/ul>\n\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\n
Tides are among the clearest signs of the Moon\u2019s pull on Earth. Just 239,000 miles<\/a> (385,000 kilometers) away, the Moon\u2019s gravity<\/a> pulls on Earth\u2019s oceans<\/a> and solid crust<\/a>, subtly distorting them into a more oblong shape with bulges<\/a> roughly extending toward and away from the Moon.<\/p>\nHigh tides happen throughout Earth\u2019s oceans, but in some places they leave an unusually strong fingerprint on the landscape. Among those places is Roebuck Bay, a crescent-shaped feature in the Kimberley region of Western Australia.<\/p>\nRoebuck Bay\u2019s tidal range can reach a remarkable 9 meters (30 feet). Rising and falling tides repeatedly inundate and expose expansive mudflats, flood broad mangrove forests and salt marshes, and feed branching networks of tidal drainage channels. Many parts of Australia have tidal ranges of 2 meters or less<\/a>. But the large range at Roebuck Bay is mostly a consequence of northwestern Australia\u2019s unusually wide, shallow continental shelf<\/a>, which helps amplify tides as they approach the coast.<\/p>\nThe image at the top of the page shows the bay on March 18, 2026, when water levels were high. Green mangrove<\/a> forests grow thickly along the shoreline and line the mouths of a network of evenly spaced, linear tidal creeks. These mangrove forests are dynamic. Analysis<\/a> of decades of Landsat observations shows them expanding westward<\/a> by nearly 2 meters per year as sediment<\/a> from the waterways to the east accumulates in the sheltered bay.<\/p>\nFarther inland, branching networks of tidal drainage channels connect with the tidal creeks, giving the bay its feathered appearance. These channels, partially obscured by thick vegetation in March, were more visible earlier and later in the year, when vegetation was thinner.<\/p>\n\n\n\n<\/a><\/figure>\nAround Roebuck Bay, inland vegetation greens after monsoon rains, peaking in March, and turns brown and dry by June. The Landsat<\/a> 8 and 9 satellites captured these images throughout 2026.<\/div>\nNASA Earth Observatory \/ Lauren Dauphin<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\nMonsoonal rains, typically falling between December and March, transform the landscape around the bay into lush grasslands and seasonal wetlands. As the rains fade in May and June and the dry season takes hold, these ephemeral grasses and sedge ecosystems die back, turning the landscape shades of gold and brown. The consistent spacing of the tidal creeks is likely not a tidal effect; it appears to be influenced by the regular spacing of linear dunes in the broader region, as seen in the plains to the east<\/a>.<\/p>\nThe bay\u2019s dramatic tidal and seasonal changes are striking from above, and they also support a bounty of life on the ground. The mangroves serve as nurseries for crustaceans and fish, and the mudflats teem with dozens of types of invertebrates, including snails, worms, crabs, clams, and cockles. Shells and snails can reach an abundance of 2,500 per square meter<\/a>, according to the Australian government.<\/p>\nThis bounty of marine life is a major draw for birds. The bay, one of the most important sites for migratory birds in Australia and a key stop on the East Asian-Australasian Flyway<\/a>, regularly hosts hundreds of thousands of birds, including plovers, godwits, and knots.<\/p>\n<\/div>\nNASA Earth Observatory images by Lauren Dauphin, using Landsat data from the\u00a0<\/em>U.S. Geological Survey<\/em><\/a>.<\/em> Story by Adam Voiland.<\/em><\/p>\n\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJanuary 29, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.65 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nMarch 18, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.41 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJune 20, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.61 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources <\/h2>\n\nBirdlife International (2026) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrockmann Consult (2025) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrocx, M., via Researchgate (2016) Roebuck Plains, north-western Australia \u2013 a major Holocene carbonate mud deposit of international geoheritage significance<\/a>. Accessed August 10, 2026.<\/li>\nBroome Bird Observatory, A Special Place for Birds<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Climate Change, Energy, the Environment and Water (2025, December 15) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Environment and Conservation (2009) Ecological Character Description for Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nHickey, R. (2019) Tidal inundation modeling within GIS<\/a>. Journal of Coastal Conservation<\/em>, 23, 599\u2013606.<\/li>\nMarine Waters (2020, May 12) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nNASA (2019, June 27) More than Naught: The \u201cZ\u201d of Where Land Meets Sea<\/a>. Accessed August 10, 2026.<\/li>\nNASA Earth Observatory (2016, February 15) Compelling Coastline along Roebuck Bay<\/a>. Accessed August 10, 2026. <\/li>\nNanson, R., et al.<\/em> (2022) Geomorphic insights into Australia\u2019s coastal change using a national dataset derived from the multi-decadal Landsat archive<\/a>. Estuarine, Coastal and Shelf Science<\/a>, <\/em>265, 107712.<\/li>\nPiersma, T., et al.<\/em> (2016) Anna Plains and Roebuck Bay Benthic Invertebrate Mapping 2016<\/a>. AnnRoeBIM16<\/em>, 96.<\/li>\n<\/ul>\n\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\n
High tides happen throughout Earth\u2019s oceans, but in some places they leave an unusually strong fingerprint on the landscape. Among those places is Roebuck Bay, a crescent-shaped feature in the Kimberley region of Western Australia.<\/p>\n
Roebuck Bay\u2019s tidal range can reach a remarkable 9 meters (30 feet). Rising and falling tides repeatedly inundate and expose expansive mudflats, flood broad mangrove forests and salt marshes, and feed branching networks of tidal drainage channels. Many parts of Australia have tidal ranges of 2 meters or less<\/a>. But the large range at Roebuck Bay is mostly a consequence of northwestern Australia\u2019s unusually wide, shallow continental shelf<\/a>, which helps amplify tides as they approach the coast.<\/p>\nThe image at the top of the page shows the bay on March 18, 2026, when water levels were high. Green mangrove<\/a> forests grow thickly along the shoreline and line the mouths of a network of evenly spaced, linear tidal creeks. These mangrove forests are dynamic. Analysis<\/a> of decades of Landsat observations shows them expanding westward<\/a> by nearly 2 meters per year as sediment<\/a> from the waterways to the east accumulates in the sheltered bay.<\/p>\nFarther inland, branching networks of tidal drainage channels connect with the tidal creeks, giving the bay its feathered appearance. These channels, partially obscured by thick vegetation in March, were more visible earlier and later in the year, when vegetation was thinner.<\/p>\n\n\n\n<\/a><\/figure>\nAround Roebuck Bay, inland vegetation greens after monsoon rains, peaking in March, and turns brown and dry by June. The Landsat<\/a> 8 and 9 satellites captured these images throughout 2026.<\/div>\nNASA Earth Observatory \/ Lauren Dauphin<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\nMonsoonal rains, typically falling between December and March, transform the landscape around the bay into lush grasslands and seasonal wetlands. As the rains fade in May and June and the dry season takes hold, these ephemeral grasses and sedge ecosystems die back, turning the landscape shades of gold and brown. The consistent spacing of the tidal creeks is likely not a tidal effect; it appears to be influenced by the regular spacing of linear dunes in the broader region, as seen in the plains to the east<\/a>.<\/p>\nThe bay\u2019s dramatic tidal and seasonal changes are striking from above, and they also support a bounty of life on the ground. The mangroves serve as nurseries for crustaceans and fish, and the mudflats teem with dozens of types of invertebrates, including snails, worms, crabs, clams, and cockles. Shells and snails can reach an abundance of 2,500 per square meter<\/a>, according to the Australian government.<\/p>\nThis bounty of marine life is a major draw for birds. The bay, one of the most important sites for migratory birds in Australia and a key stop on the East Asian-Australasian Flyway<\/a>, regularly hosts hundreds of thousands of birds, including plovers, godwits, and knots.<\/p>\n<\/div>\nNASA Earth Observatory images by Lauren Dauphin, using Landsat data from the\u00a0<\/em>U.S. Geological Survey<\/em><\/a>.<\/em> Story by Adam Voiland.<\/em><\/p>\n\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJanuary 29, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.65 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nMarch 18, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.41 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJune 20, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.61 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources <\/h2>\n\nBirdlife International (2026) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrockmann Consult (2025) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrocx, M., via Researchgate (2016) Roebuck Plains, north-western Australia \u2013 a major Holocene carbonate mud deposit of international geoheritage significance<\/a>. Accessed August 10, 2026.<\/li>\nBroome Bird Observatory, A Special Place for Birds<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Climate Change, Energy, the Environment and Water (2025, December 15) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Environment and Conservation (2009) Ecological Character Description for Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nHickey, R. (2019) Tidal inundation modeling within GIS<\/a>. Journal of Coastal Conservation<\/em>, 23, 599\u2013606.<\/li>\nMarine Waters (2020, May 12) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nNASA (2019, June 27) More than Naught: The \u201cZ\u201d of Where Land Meets Sea<\/a>. Accessed August 10, 2026.<\/li>\nNASA Earth Observatory (2016, February 15) Compelling Coastline along Roebuck Bay<\/a>. Accessed August 10, 2026. <\/li>\nNanson, R., et al.<\/em> (2022) Geomorphic insights into Australia\u2019s coastal change using a national dataset derived from the multi-decadal Landsat archive<\/a>. Estuarine, Coastal and Shelf Science<\/a>, <\/em>265, 107712.<\/li>\nPiersma, T., et al.<\/em> (2016) Anna Plains and Roebuck Bay Benthic Invertebrate Mapping 2016<\/a>. AnnRoeBIM16<\/em>, 96.<\/li>\n<\/ul>\n\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\n
The image at the top of the page shows the bay on March 18, 2026, when water levels were high. Green mangrove<\/a> forests grow thickly along the shoreline and line the mouths of a network of evenly spaced, linear tidal creeks. These mangrove forests are dynamic. Analysis<\/a> of decades of Landsat observations shows them expanding westward<\/a> by nearly 2 meters per year as sediment<\/a> from the waterways to the east accumulates in the sheltered bay.<\/p>\nFarther inland, branching networks of tidal drainage channels connect with the tidal creeks, giving the bay its feathered appearance. These channels, partially obscured by thick vegetation in March, were more visible earlier and later in the year, when vegetation was thinner.<\/p>\n\n\n\n<\/a><\/figure>\nAround Roebuck Bay, inland vegetation greens after monsoon rains, peaking in March, and turns brown and dry by June. The Landsat<\/a> 8 and 9 satellites captured these images throughout 2026.<\/div>\nNASA Earth Observatory \/ Lauren Dauphin<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\nMonsoonal rains, typically falling between December and March, transform the landscape around the bay into lush grasslands and seasonal wetlands. As the rains fade in May and June and the dry season takes hold, these ephemeral grasses and sedge ecosystems die back, turning the landscape shades of gold and brown. The consistent spacing of the tidal creeks is likely not a tidal effect; it appears to be influenced by the regular spacing of linear dunes in the broader region, as seen in the plains to the east<\/a>.<\/p>\nThe bay\u2019s dramatic tidal and seasonal changes are striking from above, and they also support a bounty of life on the ground. The mangroves serve as nurseries for crustaceans and fish, and the mudflats teem with dozens of types of invertebrates, including snails, worms, crabs, clams, and cockles. Shells and snails can reach an abundance of 2,500 per square meter<\/a>, according to the Australian government.<\/p>\nThis bounty of marine life is a major draw for birds. The bay, one of the most important sites for migratory birds in Australia and a key stop on the East Asian-Australasian Flyway<\/a>, regularly hosts hundreds of thousands of birds, including plovers, godwits, and knots.<\/p>\n<\/div>\nNASA Earth Observatory images by Lauren Dauphin, using Landsat data from the\u00a0<\/em>U.S. Geological Survey<\/em><\/a>.<\/em> Story by Adam Voiland.<\/em><\/p>\n\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJanuary 29, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.65 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nMarch 18, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.41 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJune 20, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.61 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources <\/h2>\n\nBirdlife International (2026) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrockmann Consult (2025) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrocx, M., via Researchgate (2016) Roebuck Plains, north-western Australia \u2013 a major Holocene carbonate mud deposit of international geoheritage significance<\/a>. Accessed August 10, 2026.<\/li>\nBroome Bird Observatory, A Special Place for Birds<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Climate Change, Energy, the Environment and Water (2025, December 15) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Environment and Conservation (2009) Ecological Character Description for Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nHickey, R. (2019) Tidal inundation modeling within GIS<\/a>. Journal of Coastal Conservation<\/em>, 23, 599\u2013606.<\/li>\nMarine Waters (2020, May 12) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nNASA (2019, June 27) More than Naught: The \u201cZ\u201d of Where Land Meets Sea<\/a>. Accessed August 10, 2026.<\/li>\nNASA Earth Observatory (2016, February 15) Compelling Coastline along Roebuck Bay<\/a>. Accessed August 10, 2026. <\/li>\nNanson, R., et al.<\/em> (2022) Geomorphic insights into Australia\u2019s coastal change using a national dataset derived from the multi-decadal Landsat archive<\/a>. Estuarine, Coastal and Shelf Science<\/a>, <\/em>265, 107712.<\/li>\nPiersma, T., et al.<\/em> (2016) Anna Plains and Roebuck Bay Benthic Invertebrate Mapping 2016<\/a>. AnnRoeBIM16<\/em>, 96.<\/li>\n<\/ul>\n\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\n
Farther inland, branching networks of tidal drainage channels connect with the tidal creeks, giving the bay its feathered appearance. These channels, partially obscured by thick vegetation in March, were more visible earlier and later in the year, when vegetation was thinner.<\/p>\n
Monsoonal rains, typically falling between December and March, transform the landscape around the bay into lush grasslands and seasonal wetlands. As the rains fade in May and June and the dry season takes hold, these ephemeral grasses and sedge ecosystems die back, turning the landscape shades of gold and brown. The consistent spacing of the tidal creeks is likely not a tidal effect; it appears to be influenced by the regular spacing of linear dunes in the broader region, as seen in the plains to the east<\/a>.<\/p>\nThe bay\u2019s dramatic tidal and seasonal changes are striking from above, and they also support a bounty of life on the ground. The mangroves serve as nurseries for crustaceans and fish, and the mudflats teem with dozens of types of invertebrates, including snails, worms, crabs, clams, and cockles. Shells and snails can reach an abundance of 2,500 per square meter<\/a>, according to the Australian government.<\/p>\nThis bounty of marine life is a major draw for birds. The bay, one of the most important sites for migratory birds in Australia and a key stop on the East Asian-Australasian Flyway<\/a>, regularly hosts hundreds of thousands of birds, including plovers, godwits, and knots.<\/p>\n<\/div>\nNASA Earth Observatory images by Lauren Dauphin, using Landsat data from the\u00a0<\/em>U.S. Geological Survey<\/em><\/a>.<\/em> Story by Adam Voiland.<\/em><\/p>\n\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJanuary 29, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.65 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nMarch 18, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.41 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJune 20, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.61 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources <\/h2>\n\nBirdlife International (2026) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrockmann Consult (2025) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrocx, M., via Researchgate (2016) Roebuck Plains, north-western Australia \u2013 a major Holocene carbonate mud deposit of international geoheritage significance<\/a>. Accessed August 10, 2026.<\/li>\nBroome Bird Observatory, A Special Place for Birds<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Climate Change, Energy, the Environment and Water (2025, December 15) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Environment and Conservation (2009) Ecological Character Description for Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nHickey, R. (2019) Tidal inundation modeling within GIS<\/a>. Journal of Coastal Conservation<\/em>, 23, 599\u2013606.<\/li>\nMarine Waters (2020, May 12) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nNASA (2019, June 27) More than Naught: The \u201cZ\u201d of Where Land Meets Sea<\/a>. Accessed August 10, 2026.<\/li>\nNASA Earth Observatory (2016, February 15) Compelling Coastline along Roebuck Bay<\/a>. Accessed August 10, 2026. <\/li>\nNanson, R., et al.<\/em> (2022) Geomorphic insights into Australia\u2019s coastal change using a national dataset derived from the multi-decadal Landsat archive<\/a>. Estuarine, Coastal and Shelf Science<\/a>, <\/em>265, 107712.<\/li>\nPiersma, T., et al.<\/em> (2016) Anna Plains and Roebuck Bay Benthic Invertebrate Mapping 2016<\/a>. AnnRoeBIM16<\/em>, 96.<\/li>\n<\/ul>\n\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\n
The bay\u2019s dramatic tidal and seasonal changes are striking from above, and they also support a bounty of life on the ground. The mangroves serve as nurseries for crustaceans and fish, and the mudflats teem with dozens of types of invertebrates, including snails, worms, crabs, clams, and cockles. Shells and snails can reach an abundance of 2,500 per square meter<\/a>, according to the Australian government.<\/p>\nThis bounty of marine life is a major draw for birds. The bay, one of the most important sites for migratory birds in Australia and a key stop on the East Asian-Australasian Flyway<\/a>, regularly hosts hundreds of thousands of birds, including plovers, godwits, and knots.<\/p>\n<\/div>\nNASA Earth Observatory images by Lauren Dauphin, using Landsat data from the\u00a0<\/em>U.S. Geological Survey<\/em><\/a>.<\/em> Story by Adam Voiland.<\/em><\/p>\n\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJanuary 29, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.65 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nMarch 18, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.41 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJune 20, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.61 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources <\/h2>\n\nBirdlife International (2026) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrockmann Consult (2025) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrocx, M., via Researchgate (2016) Roebuck Plains, north-western Australia \u2013 a major Holocene carbonate mud deposit of international geoheritage significance<\/a>. Accessed August 10, 2026.<\/li>\nBroome Bird Observatory, A Special Place for Birds<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Climate Change, Energy, the Environment and Water (2025, December 15) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Environment and Conservation (2009) Ecological Character Description for Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nHickey, R. (2019) Tidal inundation modeling within GIS<\/a>. Journal of Coastal Conservation<\/em>, 23, 599\u2013606.<\/li>\nMarine Waters (2020, May 12) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nNASA (2019, June 27) More than Naught: The \u201cZ\u201d of Where Land Meets Sea<\/a>. Accessed August 10, 2026.<\/li>\nNASA Earth Observatory (2016, February 15) Compelling Coastline along Roebuck Bay<\/a>. Accessed August 10, 2026. <\/li>\nNanson, R., et al.<\/em> (2022) Geomorphic insights into Australia\u2019s coastal change using a national dataset derived from the multi-decadal Landsat archive<\/a>. Estuarine, Coastal and Shelf Science<\/a>, <\/em>265, 107712.<\/li>\nPiersma, T., et al.<\/em> (2016) Anna Plains and Roebuck Bay Benthic Invertebrate Mapping 2016<\/a>. AnnRoeBIM16<\/em>, 96.<\/li>\n<\/ul>\n\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\n
This bounty of marine life is a major draw for birds. The bay, one of the most important sites for migratory birds in Australia and a key stop on the East Asian-Australasian Flyway<\/a>, regularly hosts hundreds of thousands of birds, including plovers, godwits, and knots.<\/p>\n<\/div>\nNASA Earth Observatory images by Lauren Dauphin, using Landsat data from the\u00a0<\/em>U.S. Geological Survey<\/em><\/a>.<\/em> Story by Adam Voiland.<\/em><\/p>\n\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJanuary 29, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.65 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nMarch 18, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.41 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJune 20, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.61 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources <\/h2>\n\nBirdlife International (2026) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrockmann Consult (2025) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrocx, M., via Researchgate (2016) Roebuck Plains, north-western Australia \u2013 a major Holocene carbonate mud deposit of international geoheritage significance<\/a>. Accessed August 10, 2026.<\/li>\nBroome Bird Observatory, A Special Place for Birds<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Climate Change, Energy, the Environment and Water (2025, December 15) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Environment and Conservation (2009) Ecological Character Description for Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nHickey, R. (2019) Tidal inundation modeling within GIS<\/a>. Journal of Coastal Conservation<\/em>, 23, 599\u2013606.<\/li>\nMarine Waters (2020, May 12) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nNASA (2019, June 27) More than Naught: The \u201cZ\u201d of Where Land Meets Sea<\/a>. Accessed August 10, 2026.<\/li>\nNASA Earth Observatory (2016, February 15) Compelling Coastline along Roebuck Bay<\/a>. Accessed August 10, 2026. <\/li>\nNanson, R., et al.<\/em> (2022) Geomorphic insights into Australia\u2019s coastal change using a national dataset derived from the multi-decadal Landsat archive<\/a>. Estuarine, Coastal and Shelf Science<\/a>, <\/em>265, 107712.<\/li>\nPiersma, T., et al.<\/em> (2016) Anna Plains and Roebuck Bay Benthic Invertebrate Mapping 2016<\/a>. AnnRoeBIM16<\/em>, 96.<\/li>\n<\/ul>\n\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\n
NASA Earth Observatory images by Lauren Dauphin, using Landsat data from the\u00a0<\/em>U.S. Geological Survey<\/em><\/a>.<\/em> Story by Adam Voiland.<\/em><\/p>\n\n\n\n\n\n\n\t\t\t\t\tDownloads\t\t\t\t<\/h2>\n<\/div>\n\n\n\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJanuary 29, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.65 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nMarch 18, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.41 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n\n\n\n<\/figure>\n<\/div>\n<\/div>\n\n\nJune 20, 2026<\/h2>\n<\/div>\n\n\n\n<\/div>\n\nJPEG (3.61 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\t<\/circle><\/path><\/path><\/svg>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<\/div>\nReferences & Resources <\/h2>\n\nBirdlife International (2026) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrockmann Consult (2025) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nBrocx, M., via Researchgate (2016) Roebuck Plains, north-western Australia \u2013 a major Holocene carbonate mud deposit of international geoheritage significance<\/a>. Accessed August 10, 2026.<\/li>\nBroome Bird Observatory, A Special Place for Birds<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Climate Change, Energy, the Environment and Water (2025, December 15) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nDepartment of Environment and Conservation (2009) Ecological Character Description for Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nHickey, R. (2019) Tidal inundation modeling within GIS<\/a>. Journal of Coastal Conservation<\/em>, 23, 599\u2013606.<\/li>\nMarine Waters (2020, May 12) Roebuck Bay<\/a>. Accessed August 10, 2026.<\/li>\nNASA (2019, June 27) More than Naught: The \u201cZ\u201d of Where Land Meets Sea<\/a>. Accessed August 10, 2026.<\/li>\nNASA Earth Observatory (2016, February 15) Compelling Coastline along Roebuck Bay<\/a>. Accessed August 10, 2026. <\/li>\nNanson, R., et al.<\/em> (2022) Geomorphic insights into Australia\u2019s coastal change using a national dataset derived from the multi-decadal Landsat archive<\/a>. Estuarine, Coastal and Shelf Science<\/a>, <\/em>265, 107712.<\/li>\nPiersma, T., et al.<\/em> (2016) Anna Plains and Roebuck Bay Benthic Invertebrate Mapping 2016<\/a>. AnnRoeBIM16<\/em>, 96.<\/li>\n<\/ul>\n\n\n\n\n\n\nYou may also be interested in:<\/h2>\nStay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n<\/div>\n\n<\/span><\/div>\n<\/div>\n\n\n <\/p>\n<\/figure>\n<\/p>\n<\/a><\/p>\n\n <\/p>\n
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Stay up-to-date with the latest content from NASA as we explore the universe and discover more about our home planet.<\/p>\n<\/div>\n<\/div>\n
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