miércoles, 20 de noviembre de 2013

NASA: Philippines - Evidence of Destruction in Tacloban - 11.20.13


Evidence of Destruction in Tacloban, Philippines
acquired November 15, 2013 download large image (487 KB, JPEG, 1148x856)
Evidence of Destruction in Tacloban, Philippines
acquired April 3, 2004 download large image (421 KB, JPEG, 1149x857)
 
 
When Super Typhoon Haiyan struck the Philippines on November 8, 2013, it pounded the island of Leyte with winds near 315 kilometers (195 miles) per hour and a tremendous storm surge. In Tacloban, winds blew a wall of water ashore that may have been as much as 7.5 meters (24.6 feet) high. Much of the city sits less than 5 meters (16 feet) above sea level. These false-color images hint at the impact of the storm surge and winds on the city.
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite acquired these images on November 15, 2013 (top) and April 3, 2004 (lower)—the last mostly cloud-free ASTER view of the city. Plant-covered land is red; urban areas are white and silver; bare ground is tan; and water and shadows are black. From ASTER’s wide perspective, it is not possible to see individual city blocks of destroyed buildings. But the subtle differences between the images do reveal a wide-scale disaster; those changes are easiest to see if you turn on the image comparison tool.
The most obvious difference is a change in vegetation. In 2004, the mountains west of the city were covered in dense vegetation; in 2013, the hills are bare. Nine years elapsed between the two images, and many things could explain the change. People may have cleared the land, or the plants may simply look different in November than they do in April. Since this is a tropical location where seasons have little impact, it is just as likely that Haiyan’s winds are responsible for the change. News photos of the hills show trees stripped of leaves or blown down.
Near the coast, the storm’s impact is more unequivocal. Much of the area south of Tacloban is tan where the storm surge washed away plants and buildings, leaving mud-covered ground. This is the clearest evidence of the storm surge. The small peninsula where Tacloban’s airport is located was one of the most severely affected parts of the city, and a close look at the image shows that this area is also brown, which means that few plants or buildings survived. Interestingly, the large geometric white shape near the airport is new compared to another satellite-based map from July 2013. The shape indicates that this is a man-made structure, perhap associated with relief efforts at the airport.
Changes to the city itself are subtle. At first glance, it appears that Tacloban grew between 2004 and 2013. The city appears more densely built, and it expanded along the outer edges. However, some of this growth may be an illusion. More recent views from other satellites, including the Google Maps view show a neatly ordered city with green space separating city blocks, much like the 2004 image. In 2013, that plant-covered land is gone, replaced by silver. The ordered grid of streets, visible in 2004, is blurred in 2013, perhaps covered by a field of debris. A radar-based satellite analysis by scientists at the Jet Propulsion Laboratory confirms widespread destruction in downtown Tacloban.
The final signs of storm damage are the pockets of water on the landscape. In this type of false-color image, water is black or dark blue. Traces of floods are visible south of Tacloban and west of the hills on the left edge of the image. Some of the dark spots are shadows cast by clouds.
This pair of images demonstrates both the challenge and the value in mapping disasters with satellite data. The images give a view of the entire city and its surroundings, a view that would otherwise be very difficult to obtain. On the other hand, some of the change is ambiguous and requires ground-based information to understand. For more tips on interpreting satellite images, see the Earth Observatory’s new feature, How to interpret a satellite image: Five tips and strategies.
  1. References

  2. Associated Press (2013, November 11) Haiyan storm surges caught Philippines by surprise. Accessed November 19, 2013.
  3. BBC News (2013, November 12) Tacloban: City at the center of the storm. Accessed November 19, 2013.
  4. BBC News (2013, November 12) Typhoon Haiyan: Storm surge destroys house in seconds. Accessed November 19, 2013.
  5. Dutch Water Sector (2013, November 12) Typhoon Haiyan pushed devastating 5 m high storm surge into Tacloban City, Philippines. Accessed November 19, 2013.
  6. European Commission Copernicus Emergency Management Service (2013, November 11) Tacloban City – Philippines Typhoon Haiyan – 08/11/2013 grading map – overview. Published on ReliefWeb. Accessed November 19, 2013.
  7. Hurricane Hal’s Storm Surge Blog (2013, November 15) Haiyan storm surge estimates improve through shared observations. Accessed November 19, 2013.
  8. NASA Jet Propulsion Laboratory (2013, November 13) NASA-generated damage map to assist with Typhoon Haiyan disaster response. Accessed November 19, 2013.
  9. New York Times (2013, November 16) In worst-hit area of Tacloban, a killer from two sides. Accessed November 19, 2013.
  10. New York Times (2013, November 11) Mapping the destruction of Typhoon Haiyan. Accessed November 19, 2013.
  11. New York Times (2013, November 11) Pictures of Typhoon Haiyan’s wrath. Accessed November 19, 2013.
  12. UN Office for the Coordination of Humanitarian Affairs (2013, November 18) Philippines: Typhoon Haiyan (Yolanda) infrastructure – Tacloban City (as of 15-Nov-2013). Published on ReliefWeb. Accessed November 19, 2013.
NASA image courtesy Ken Duda, U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center. Caption by Holli Riebeek.
Instrument: 
Terra - ASTER


NASA: Philippines - Evidence of Destruction in Tacloban - 11.20.13






You have an alphabetical guide in the foot of the page in the blog: solitary dog sculptor
In the blog: Solitary Dog Sculptor I, the alphabetical guide is on the right side of the page
Thanks

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En el blog: Solitary Dog Sculptor I, la guia alfabética está en el costado derecho de la página
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Ricardo M Marcenaro - Facebook

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Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano.

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Music: Baltasar Comotto - Lugano - Rock from Argentina - Lyrics





Baltasar Comotto - Lugano


LUGANO

Un milagro nos conecta en las calles de cemento
extrañaste a la inocencia en la desesperación

Encubierto te verás
en la niebla

Sabes que el amor es así
eres parte de mi verdad
el contraste en el dolor
en las torres del espacio

Te quebraste en un barro construyendo realidad
simulaste un personaje que te quedaba bien
no perdonarás esa traición

Sabes que el amor es así
eres parte de mi verdad
el contraste en el dolor
en las torres del espacio

Sabes que el amor es así
eres parte de mi verdad
el contraste en el dolor
en las torres de Lugano







Music: Baltasar Comotto - Lugano - Rock from Argentina - Lyrics






You have an alphabetical guide in the foot of the page in the blog: solitary dog sculptor
In the blog: Solitary Dog Sculptor I, the alphabetical guide is on the right side of the page
Thanks

Usted tiene una guía alfabética al pie de la página en el blog: solitary dog sculptor
En el blog: Solitary Dog Sculptor I, la guia alfabética está en el costado derecho de la página
Gracias


Ricardo M Marcenaro - Facebook

Blogs in operation of The Solitary Dog:
solitary dog sculptor:
http://byricardomarcenaro.blogspot.com
Solitary Dog Sculptor I:
http://byricardomarcenaroi.blogspot.com

Para:
comunicarse conmigo,
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My blogs are an open house to all cultures, religions and countries. Be a follower if you like it, with this action you are building a new culture of tolerance, open mind and heart for peace, love and human respect.

Thanks :)

Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano.

Gracias :)




Photos - Fotos: Dolph Kessler - Special series - Ferry. Alaska. Dutch Harbour. Aleutian Islands - 2 - 2006 - Links to more DK


Dolph Kessler


Ferry, Alaska, Dutch Harbour, Aleutian Islands - 2
In the summer of 2008 I traveled by ferry along the Aleutian Islands from Kodiak to Dutch Harbour. Since 2009 I have made 4 other sea crossings by mail boats. I intend to extend this to more voyages in order to make them into a photo book with the title: The ten most beautiful mail boat trips in the world.
 

















































 
Links

AROUND THE NORTH SEA

Ukranie - LVIV, LWOW, LEMBERG

POD PHOTO BOOKS
SPECIAL SERIES
Norwegian Mood
TRAVEL

DK site
 









Photos - Fotos: Dolph Kessler - Special series - Ferry. Alaska. Dutch Harbour. Aleutian Islands - 2 - 2006 - Links to more DK






You have an alphabetical guide in the foot of the page in the blog: solitary dog sculptor
In the blog: Solitary Dog Sculptor I, the alphabetical guide is on the right side of the page
Thanks

Usted tiene una guía alfabética al pie de la página en el blog: solitary dog sculptor
En el blog: Solitary Dog Sculptor I, la guia alfabética está en el costado derecho de la página
Gracias


Ricardo M Marcenaro - Facebook

Blogs in operation of The Solitary Dog:
solitary dog sculptor:
http://byricardomarcenaro.blogspot.com
Solitary Dog Sculptor I:
http://byricardomarcenaroi.blogspot.com

Para:
comunicarse conmigo,
enviar materiales para publicar,
propuestas comerciales:
marcenaroescultor@gmail.com
For:
contact me,
submit materials for publication,
commercial proposals:
marcenaroescultor@gmail.com


My blogs are an open house to all cultures, religions and countries. Be a follower if you like it, with this action you are building a new culture of tolerance, open mind and heart for peace, love and human respect.

Thanks :)

Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano.

Gracias :)