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Algal Bloom off Tasmania
| Title |
Algal Bloom off Tasmania |
| Description |
The Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] and Terra [ http://terra.nasa.gov/ ] satellites helped scientists identify this large algal bloom off the eastern coast of Tasmania. Large blooms have not been detected in the Tasman Sea in the past, and scientists from CSIRO Marine Research, the largest marine research organization in Australia, believe this one resulted from the natural upwelling of nutrients along the island's coast. The bloom is made up of coccolithophores, and is not believed to be harmful to the coastal ecosystem. MODIS imagery, such as the image above, revealed just how large this bloom is. The bloom forms bright blue-green clouds in the water that stretch from Flinders Island in the north down the entire east coast of Tasmania. The color is caused by light reflecting off the chalky outer scales of millions of microscopic coccoliths. The effect is a cloud of bright blue or green water in satellite imagery. In addition to helping scientists identify algal blooms, the MODIS images "provide a valuable interpretation for researchers wanting to understand any impact this species may have in the coastal or offshore environments," said Dr Susan Blackburn, a CSIRO researcher, in a press release [ http://www.marine.csiro.au/media/04releases/27oct04.html ]. The above MODIS image was acquired on October 20, 2004, by NASA's Terra [ http://terra.nasa.gov/ ] satellite. NASA image created by Jesse Allen, Earth Observatory, using data obtained from the NASA Goddard Earth Sciences DAAC. |
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Floods in New Zealand
| Title |
Floods in New Zealand |
| Description |
The flood waters had largely receded on New Zealand's North Island when the clouds cleared away on February 25, 2004, and the Moderate Resolution Imaging Spectroradiometer [ http://modis.gsfc.nasa.gov ] (MODIS) on the Aqua [ http://aqua.nasa.gov/ ] satellite captured this image. Only a few muddy pools of standing water and swollen rivers, not present in an image taken on January 17, remain in what was the worst flood to strike the area in 100 years. Tan and green clouds of sediment in the Tasman Sea on the west side of the island also point to the recent floods, which pushed extra water and mud into the Sea. The flooding began on February 13, when a series of unusual summer storms brought heavy rain and strong winds to the lower North Island. The floods damaged at least 19 bridges, affected water and sewer systems, and knocked out power and communications for several days. It is no coincidence that the flood area is one of New Zealand's primary crop-growing regions. Many previous floods have carried rich soil to the land, making the ground fertile crop land. This year, however, the floods destroyed crops and devastated cattle and sheep farmers. Since the flooding began, vegetable prices have increased more than 200 percent. As the waters recede, farmers are beginning to assess the damage, which is expected to soar up to 200 million dollars. The high-resolution images provided above are at MODIS' maximum resolution of 250 meters per pixel. Image courtesy Jesse Allen, based on data from the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
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Floods in New Zealand
| Title |
Floods in New Zealand |
| Description |
The flood waters had largely receded on New Zealand's North Island when the clouds cleared away on February 25, 2004, and the Moderate Resolution Imaging Spectroradiometer [ http://modis.gsfc.nasa.gov ] (MODIS) on the Aqua [ http://aqua.nasa.gov/ ] satellite captured this image. Only a few muddy pools of standing water and swollen rivers, not present in an image taken on January 17, remain in what was the worst flood to strike the area in 100 years. Tan and green clouds of sediment in the Tasman Sea on the west side of the island also point to the recent floods, which pushed extra water and mud into the Sea. The flooding began on February 13, when a series of unusual summer storms brought heavy rain and strong winds to the lower North Island. The floods damaged at least 19 bridges, affected water and sewer systems, and knocked out power and communications for several days. It is no coincidence that the flood area is one of New Zealand's primary crop-growing regions. Many previous floods have carried rich soil to the land, making the ground fertile crop land. This year, however, the floods destroyed crops and devastated cattle and sheep farmers. Since the flooding began, vegetable prices have increased more than 200 percent. As the waters recede, farmers are beginning to assess the damage, which is expected to soar up to 200 million dollars. The high-resolution images provided above are at MODIS' maximum resolution of 250 meters per pixel. Image courtesy Jesse Allen, based on data from the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
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Floods in New Zealand
| Title |
Floods in New Zealand |
| Description |
The flood waters had largely receded on New Zealand's North Island when the clouds cleared away on February 25, 2004, and the Moderate Resolution Imaging Spectroradiometer [ http://modis.gsfc.nasa.gov ] (MODIS) on the Aqua [ http://aqua.nasa.gov/ ] satellite captured this image. Only a few muddy pools of standing water and swollen rivers, not present in an image taken on January 17, remain in what was the worst flood to strike the area in 100 years. Tan and green clouds of sediment in the Tasman Sea on the west side of the island also point to the recent floods, which pushed extra water and mud into the Sea. The flooding began on February 13, when a series of unusual summer storms brought heavy rain and strong winds to the lower North Island. The floods damaged at least 19 bridges, affected water and sewer systems, and knocked out power and communications for several days. It is no coincidence that the flood area is one of New Zealand's primary crop-growing regions. Many previous floods have carried rich soil to the land, making the ground fertile crop land. This year, however, the floods destroyed crops and devastated cattle and sheep farmers. Since the flooding began, vegetable prices have increased more than 200 percent. As the waters recede, farmers are beginning to assess the damage, which is expected to soar up to 200 million dollars. The high-resolution images provided above are at MODIS' maximum resolution of 250 meters per pixel. Image courtesy Jesse Allen, based on data from the MODIS Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
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Dust Storm off Australia
| Title |
Dust Storm off Australia |
| Description |
Fierce winds whipped across southern Australia on October 28, 2003, scouring dust from the rocky desert terrain of South Australia and spreading it out over New South Wales and on to the Tasman Sea. This Moderate Resolution Imaging Spectroradiometer (MODIS) image from the Aqua satellite pictures northeastern South Australia where there are three separate streams of dust blowing eastward. At top left, dust blows over the dry Lake Eyre lake bed. In image center, dust blows over the southern part of the Sturt-Stony Desert, which lies northeast of the dark, sinuous ripples of the Flinders Ranges (left of center). A reddish plume of dust runs along the bottom right of the scene, stretching out over the Darling River. Just east of the area pictured here, severe wind damage was reported in the town of Broken Hill, New South Wales. Trees were uprooted and roofs were ripped off homes by the strong winds that also blew the dust out to sea. The high-resolution image provided above is 500 meters per pixel. The MODIS Rapid Response System provides this image at MODIS' maximum spatial resolution of 250 meters. Image courtesy Jeff Schmaltz, MODIS Rapid Response Team, NASA GSFC |
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East Australian Current
| Title |
East Australian Current |
| Description |
The East Australian Current sweeps warm water down the east coast of Australia. Like the Gulf Stream, the East Australia Current is pushed to the western edge of the ocean by the rotation of the Earth. The current carries nutrient-poor water from the Coral Sea into the cool waters of the Tasman Sea, spinning off into eddies as it does. The temperature difference between the current and the waters of the Tasman Sea make the current stand out clearly in this sea surface temperature image, taken by the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite on August 17, 2005. The image shows the warm water of the current in warm peach in contrast to the cooler pinks and purples of the surrounding ocean. Patches of white show where clouds veiled the ocean's surface. The East Australia Current is the largest ocean current close to Australia, moving as much as 30 million cubic meters of water per second in a broad ribbon that covers as much as 100 kilometers in width and 500 meters in depth. The current is strongest in the early months of the year—the Southern Hemisphere's summer— and weakens during the winter, the middle of the year. During the winter, the current hooks to the east off the coast of New South Wales. This image shows the southern edge of the current as it is making its eastward turn. For more information about the East Australia Current, see the CSIRO Marine Research web site, The East Australian Current [ http://www.marine.csiro.au/LeafletsFolder/37eac/ ]. NASA image courtesy Norman Kuring, MODIS Ocean Color Team [ http://oceancolor.gsfc.nasa.gov/ ] |
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Fire Danger Extreme in New S
…
| Title |
Fire Danger Extreme in New South Wales |
| Description |
New South Wales, Australia, has been experiencing severe drought in late 2002. Crops have suffered, and wildfire danger is extreme. In southeast New South Wales, multiple large wildfires are burning both north and south of Sydney, which can be seen roughly in the center of the image. Throughout the territory, people have been evacuated from their homes or have been urged to remain indoors and watchful. This true-color Moderate Resolution Imaging Spectroradiometer (MODIS) was captured by the Aqua satellite on December 4, 2002, and shows active fires marked with red outlines. In the southern part of the image, large plumes of grayish-brown smoke waft out over the Tasman Sea. Image courtesy Jeff Schmaltz, MODIS Rapid Response Team, NASA GSFC |
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Fires in Victoria, Australia
| Title |
Fires in Victoria, Australia |
| Description |
In the forested mountains of Victoria's Gippsland region, several fires were burning on April 19, 2006, when the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite passed over. Places where the sensor detected actively burning fires are marked in red. Plumes of bluish smoke drift southeastward over the Tasman Sea. The westernmost fire in the scene is burning west of the town of Dargo, and it was started by an abandoned campfire, according to news reports [ http://abc.net.au/news/newsitems/200604/s1618903.htm ] from the Australian Broadcasting Corporation Website. The high-resolution image provided above has a spatial resolution of 250 meters per pixel. The MODIS Rapid Response Team provides daily images [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?Australia6/ ] of the area in a variety of resolutions and formats. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Fires in Victoria, Australia
| Title |
Fires in Victoria, Australia |
| Description |
Clouds over the December 16-17 weekend may have kept temperatures down a bit, but they apparently did little to quench dozens of large fires raging in the Barry Mountains of Victoria, Australia. This image of the area was captured on December 18, 2006, by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Aqua [ http://aqua.nasa.gov ] satellite. Places where MODIS detected actively burning fires are outlined in red. Thick smoke billows eastward from the fires across Victoria and New South Wales. Fires burned throughout the state during December. The large image provided above has a spatial resolution (level of detail) of 250 meters per pixel. An image from the previous satellite overpass was stitched to the east (right) edge to show the extent of the smoke over the Tasman Sea. The MODIS Rapid Response Team provides twice-daily [ http://rapidfire.sci.gsfc.nasa.gov/subsets/?Australia6 ] images of the region in additional resolutions and formats, including an infrared-enhanced version that highlights burned areas and openly flaming fire fronts. NASA image courtesy the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center |
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Winter Storm in New Zealand
| Title |
Winter Storm in New Zealand |
| Description |
A powerful winter storm swept across New Zealand on June 12, 2006. The storm brought strong winds that gusted up to 130 kilometers per hour (80 miles per hour) and at least one tornado, reported the Australian Broadcasting Corporation [ http://www.abc.net.au/news/ ] (ABC). Heavy rains triggered floods and landslides along the western coast of South Island, and snow blanketed the central part of the island. This wild weather, said the ABC, knocked out power in Auckland, on North Island (not pictured), and throughout the Canterbury region, shown here. On June 13, skies were clear when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on NASA's Aqua [ http://aqua.nasa.gov/ ] satellite captured this photo-like image of South Island, New Zealand. Snow covers the Southern Alps, making the finger-like glacier lakes stand out like sapphires against a field of white. The snow stretches to the sea on the east side of the island. It is here, in the river basins and valleys east of the mountains and around Christchurch, that deep snow closed roads and isolated communities, say news reports. The impact of heavy rain along the western shore of South Island is also evident in this image. Mud-laden water, full of sediment from landslides and run-off, flows into the Tasman Sea from the many streams that run out of the mountains. In the ocean, the muddy water is tan and fades to a cloudy green as the sediment disperses. The large image provided above has a resolution of 250 meters per pixel. It is available in additional resolutions [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2006164-0613/NewZealand.A2006164.0225 ] from the MODIS Rapid Response Team. NASA image courtesy Jeff Schmaltz, MODIS Land Rapid Response Team [ http://rapidfire.sci.gsfc.nasa.gov ] at NASA GSFC |
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Fires in Victoria, Australia
…
nasa, nasanaturalhazards
Fires (locations marked in r
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SEAustralia_AMO_2008115
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2008-04-24 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
SEAustralia_AMO_2008115 |
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Floods in New Zealand: Natur
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
aqua_nz_17jan_25feb04
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2004-02-25 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
aqua_nz_17jan_25feb04 |
|
Floods in New Zealand: Natur
…
nasa, nasanaturalhazards
* eoimages.gsfc.nasa.gov/ima
…
aqua_nz_17jan_25feb04
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2004-02-25 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
aqua_nz_17jan_25feb04 |
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Fire Danger Extreme in New S
…
nasa, nasanaturalhazards
Huge fires are burning out o
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Australia.AMOA2002292
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-10-18 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Australia.AMOA2002292 |
|
Chlorophyll Around New Zeala
…
nasa, nasaimageofthedaygalle
…
Swirls of chlorophyll trace
…
NewZealand_AMO_2006269
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-09-26 |
| creator |
NASA -- NASA image by Norman Kuring, NASA Ocean Color Team. |
| identifier |
NewZealand_AMO_2006269 |
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Chlorophyll Around New Zeala
…
nasa, nasaimageofthedaygalle
…
Swirls of chlorophyll trace
…
NewZealand_AMO_2006269
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-09-26 |
| creator |
NASA -- NASA image by Norman Kuring, NASA Ocean Color Team. |
| identifier |
NewZealand_AMO_2006269 |
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Snow in New Zealand: Image o
…
nasa, nasaimageofthedaygalle
…
A powerful winter storm swep
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NewZealand_AMO_2006164
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-06-12 |
| creator |
NASA -- NASA image courtesy Jeff Schmaltz, rapidfire.sci.gsfc.nasa.gov MODIS Land Rapid Response Team at NASA GSFC |
| identifier |
NewZealand_AMO_2006164 |
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East Australian Current: Nat
…
nasa, nasanaturalhazards
The East Australian Current
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AustraliaSST_AMO_200522
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2005-08-17 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
AustraliaSST_AMO_200522 |
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Algal Bloom off Tasmania: Na
…
nasa, nasanaturalhazards
The Moderate Resolution Imag
…
ge_14176
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2004-10-20 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
ge_14176 |
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Fires in Victoria, Australia
…
nasa, nasanaturalhazards
In the forested mountains of
…
Gippsland.AMO2006109
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-04-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Gippsland.AMO2006109 |
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Dust Storm off Australia: Na
…
nasa, nasanaturalhazards
Fierce winds whipped across
…
Australia.AMOA2003301
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2003-10-28 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Australia.AMOA2003301 |
|
Fires in Victoria, Australia
…
nasa, nasanaturalhazards
Clouds over the December 16-
…
Vict_AMO_2006352
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2006-12-18 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
Vict_AMO_2006352 |
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