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Images of Austria and Goddard Space Flight Center (GSFC) and Hungary
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Dust Storm over the Mediterr
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| Title |
Dust Storm over the Mediterranean Sea |
| Description |
The Sea-viewing Wide Field-of-view Sensor (SeaWiFS) observed this large cloud of dust (brownish pixels) blowing from northern Africa across the Mediterranean Sea on March 4, 2002. The dust can be seen clearly blowing across Southern Italy, Albania, Greece, and Turkey?all along the Mediterranean?s northeastern shoreline. Notice that there also appears to be human-made aerosol pollution (greyish pixels) pooling in the air just south of the Italian Alps and blowing southeastward over the Adriatic Sea. The Alps can be easily identified as the crescent-shaped, snow-capped mountain range in the top center of this true-color scene. There also appears to be a similar haze over Austria, Hungary, and Yugoslavia to the north and east of Italy. SeaWiFS image courtesy the SeaWiFS Project, [ http://earthobservatory.nasa.gov/cgi-bin/redirect?http://seawifs.gsfc.nasa.gov/SEAWIFS.html ] NASA/Goddard Space Flight Center, and ORBIMAGE |
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Flooding on Elbe River
| Title |
Flooding on Elbe River |
| Description |
Heavy rains in Central Europe over the past few weeks have led to some of the worst flooding the region has witnessed in more than a century. The floods have killed more than 100 people in Germany, Russia, Austria, Hungary, and the Czech Republic and have led to as much as $20 billion in damage. This false-color image of the Elbe River and its tributaries was taken on August 18, 2002, by the Moderate Resolution Imaging Spectroradiometer (MODIS), flying aboard NASA?s Terra satellite. Portions of the Elbe River rose from the usual summer high of 6 feet (1.8 meters) to over 30 feet (9.1 meters). In the Czech Republic capital of Prague, which sits at the lower right-hand corner of the image, residential streets filled with water and thousands were evacuated from their homes. Further north in Dresden, Germany, the floods reached levels not seen since 1845. The water seeped into the historic buildings and threatened precious works of art. City officials estimate that the damage to Dresden will probably exceed $100 million. As the floodwaters moved north over the weekend, thousands of people abandoned the cities of Magdeburge and Bitterfeld, Germany, and rescue workers lined the exposed riverbanks with sandbags. German meteorologists expect the flooding to subside over the next week as little rain is expected. Image courtesy Jacques Descloitres, MODIS Land Rapid Response Team at NASA GSFC |
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Flooding along Danube River:
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nasa, nasanaturalhazards
Heavy rains in Central and E
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danube.TMO2002231
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-08-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
danube.TMO2002231 |
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Flooding on Elbe River: Natu
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nasa, nasanaturalhazards
Heavy rains in Central Europ
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elbe.TMO2002230
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-08-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
elbe.TMO2002230 |
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Flooding on Elbe River: Natu
…
nasa, nasanaturalhazards
Heavy rains in Central Europ
…
elbe.TMO2002230
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-08-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
elbe.TMO2002230 |
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Flooding on Elbe River: Natu
…
nasa, nasanaturalhazards
Heavy rains in Central Europ
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elbe.TMO2002232
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-08-20 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
elbe.TMO2002232 |
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Flooding along Danube River:
…
nasa, nasanaturalhazards
Heavy rains in Central and E
…
danube.TMO2002230
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-08-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
danube.TMO2002230 |
|
Flooding along Danube River:
…
nasa, nasanaturalhazards
Heavy rains in Central and E
…
danube.TMO2002230
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-08-19 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
danube.TMO2002230 |
|
Flooding on Elbe River: Natu
…
nasa, nasanaturalhazards
Heavy rains in Central Europ
…
elbe.L72002232
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002-08-20 |
| creator |
NASA -- NASA Image Of The Day |
| identifier |
elbe.L72002232 |
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Aerosols over Central and Ea
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PIA04325
Sol (our sun)
Multi-angle Imaging SpectroR
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| Title |
Aerosols over Central and Eastern Europe |
| Original Caption Released with Image |
Particulate air pollution is a complex mixture of particles of varying origins and compositions. Determining the type and abundance of tiny airborne particles, known as aerosols, is needed for monitoring air quality and for understanding climate change. During the last weeks of March 2003, unusually high and widespread aerosol pollution was detected over Europe by several satellite-borne instruments. The Multi-angle Imaging SpectroRadiometer (MISR) instrument aboard NASA's Terra satellite determines aerosol amount and information about particle properties by examining the variation in scene brightness at different view angles. These images and data products illustrate the amount of aerosols on two dates over parts of Central and Eastern Europe, from the Baltic Sea in the north to the Adriatic Sea in the south. Two groups of three panels are shown. Within each group, the left and center views are natural-color images from MISR's vertical-viewing (nadir) and most obliquely forward-viewing cameras, respectively, and the right-hand panel is a map of retrieved aerosol amount, parameterized by a quantity called the optical depth. A color scale is used to represent this quantity, and high aerosol amount is indicated by yellow or green pixels, and clearer skies are indicated by blue pixels. The left-hand group of panels is comprised of data acquired on February 23, 2003, when most of the land area was still partially frozen. The right-hand group of panels portrays the same area about one month later, on March 27. The nadir camera enables surface features to stand out most clearly, whereas MISR's oblique cameras enhance sensitivity to even thin layers of aerosols. In the March image, the only strong indications of haze from the nadir view are the thin tendrils of grayish pixels over the dark waters of the Baltic Sea. Although aerosols are conventionally difficult to discern over bright surfaces, MISR is able to produce an aerosol abundance map for both the earlier snow-covered scene and for the later date, though fewer successful retrievals were obtained in the winter data. Skies were relatively clear in the earlier view, and the high optical depths implied by the red pixels are probably blunders due either to the homogeneity of the underlying snow-covered surface or the presence of unscreened clouds. In contrast, the March data show a thick haze over most of the lower-elevation parts of the observed area. Optical depths are relatively lower over the Julian Alps and the mountains of western Croatia (just north of the Adriatic), whereas higher abundances are observed to the north of the mountains and over eastern Croatia. There is a gradual transition from higher optical depths in western Poland to lower optical depths in Lithuania and along the eastern coast of the Baltic. Higher optical depths are also indicated over much of Hungary, Slovakia and eastern Austria. Places where clouds or other factors precluded an aerosol retrieval are otherwise shown in, dark gray. An overview [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=8637 ] of the haze extent and meteorological conditions for March 28, 2003 is also available from the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) sensor. The Multi-angle Imaging SpectroRadiometer observes the daylit Earth continuously and every 9 days views the entire globe between 82 degrees north and 82 degrees south latitude. These data products were generated from a portion of the imagery acquired during Terra orbits 16937 and 17403. The panels cover an area of about 380 kilometers x 1775 kilometers, and use data from blocks 43 to 55 within World Reference System-2 path 190. MISR was built and is managed by NASA's Jet Propulsion Laboratory,Pasadena, CA, for NASA's Office of Earth Science, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center,Greenbelt, MD. JPL is a division of the California Institute ofTechnology. |
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