NASA Damage Map Helps in Typhoon Disaster Response

Monday, July 21, 2014

NASA Damage Map Helps in Typhoon Disaster Response

NASA Damage Map Helps in Typhoon Disaster Response:

NASA-Generated Damage Map To Assist With Typhoon Haiyan Disaster Response

When Super Typhoon Haiyan, one of the most powerful storms ever recorded on Earth, struck the Philippines Nov. 8, 2013, it tore a wide swath of destruction across large parts of the island nation. Image Credit:
ASI/NASA/JPL-Caltech
› Full image and caption

November 13, 2013

A new, space-based map generated by scientists at NASA's Jet Propulsion Laboratory, Pasadena, Calif., in collaboration with the Italian Space Agency to assist in disaster response efforts shows the regions in the Philippines hit hardest by Super Typhoon Haiyan. The typhoon tore a wide swath of devastation across the island nation on Nov. 8, 2013.

The map, which depicts the storm's destruction, is available online at:
http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA17687 .

This 27-by-33-mile (43-by-53-kilometer) map covers a region near Tacloban City, where the massive storm, one of the most powerful ever recorded on Earth, made landfall. It was made from radar imagery obtained before and after the typhoon hit. It was processed by JPL's Advanced Rapid Imaging and Analysis (ARIA) team using X-band interferometric synthetic aperture radar data from the Italian Space Agency's COSMO-SkyMed satellite constellation. The technique uses a prototype algorithm to rapidly detect surface changes caused by natural or human-produced damage.

The technique is most sensitive to detecting destruction of the human-made environment. In the image, damage detected by radar is shown as an overlay on a Google Earth image. Areas in red reflect the heaviest damage to cities and towns in the storm's path. The estimated intensity of damage is proportional to the opacity of the red. When the radar observes areas that have little to no destruction, its image pixels are transparent. The satellite data used to generate the map span the time frame from Aug. 19 to Nov. 11, 2013. Each pixel in the damage map measures approximately 33 yards (30 meters) across.

ARIA is a JPL- and NASA-funded project being developed by JPL and the California Institute of Technology, Pasadena, Calif. It is building an automated system for providing rapid and reliable GPS and satellite data to support the local, national and international hazard monitoring and response communities. Using space-based imagery of disasters, ARIA data products can provide rapid assessments of the geographic region affected by a disaster, as well as detailed imaging of the locations where damage occurred.

NASA is making the data publicly available for agencies that might be responding to the event through the U.S. Geological Survey's Earth Resources Observation and Science (EROS) Data Center's Hazards Data Distribution System, as well as through NASA's ARIA website.

The ARIA team began developing and evaluating this technique using case studies from the magnitude 6.3 earthquake in Christchurch, New Zealand, in February 2011 to detect building damage, landslides and liquefaction. Following the magnitude 9.0 earthquake in Tohoku, Japan, in March 2011, the team used the technique to assess tsunami damage, as well as ground deformation from high-rate GPS network and imaging radar satellites. Those ground-deformation data were downloaded more than 1,400 times within the first two days they were available. Following last year's Hurricane Sandy, the team produced damage maps that were delivered to the International Charter 11 days after landfall and subsequently validated with crowdsourcing with the assistance of the GISCorps.

The ARIA team continues to improve its response time for generating products -- the Haiyan satellite data were available three days after landfall and were processed within 11 hours of data acquisition. The improved response time has been aided by NASA's recent joint collaboration with the Italian Space Agency, which operates four identical radar satellites.

For more information about ARIA, visit: http://aria.jpl.nasa.gov .

Caltech manages JPL for NASA.

Alan Buis 818-354-0474

Jet Propulsion Laboratory, Pasadena, Calif.

Alan.buis@jpl.nasa.gov

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The National Aeronautics and Space Administration (NASA) is the United States government agency responsible for the civilian space program as well as aeronautics and aerospace research. President Dwight D. Eisenhower established the National Aeronautics and Space Administration (NASA) in 1958 with a distinctly civilian (rather than military) orientation encouraging peaceful applications in space science. The National Aeronautics and Space Act was passed on July 29, 1958, disestablishing NASA's predecessor, the National Advisory Committee for Aeronautics (NACA). The new agency became operational on October 1, 1958.

UFO SIGHTINGS PHOTO PHOTOGRAPHY

The Oxford English Dictionary defines a UFO as "An unidentified flying object; a 'flying saucer'." The first published book to use the word was authored by Donald E. Keyhoe. The acronym "UFO" was coined by Captain Edward J. Ruppelt, who headed Project Blue Book, then the USAF's official investigation of UFOs. He wrote, "Obviously the term 'flying saucer' is misleading when applied to objects of every conceivable shape and performance. For this reason the military prefers the more general, if less colorful, name: unidentified flying objects. UFO (pronounced Yoo-foe) for short." Other phrases that were used officially and that predate the UFO acronym include "flying flapjack", "flying disc", "unexplained flying discs", "unidentifiable object", and "flying saucer". The phrase "flying saucer" had gained widespread attention after the summer of 1947. On June 24, a civilian pilot named Kenneth Arnold reported seeing nine objects flying in formation near Mount Rainier. Arnold timed the sighting and estimated the speed of discs to be over 1,200 mph (1,931 km/h). At the time, he described the objects' shape as being somewhat disc-like or saucer-like, leading to newspaper accounts of "flying saucers" and "flying discs". In popular usage the term UFO came to be used to refer to claims of alien spacecraft. and because of the public and media ridicule associated with the topic, some investigators prefer to use such terms as unidentified aerial phenomenon (or UAP) or anomalous phenomena, as in the title of the National Aviation Reporting Center on Anomalous Phenomena (NARCAP).

UFO PHOTO PHOTOGRAPHY

UFO - Unidentified Flying Object An unidentified flying object, or UFO, in its most general definition, is any apparent anomaly in the sky that is not identifiable as a known object or phenomenon. Culturally, UFOs are associated with claims of visitation by extraterrestrial life or government-related conspiracy theories, and have become popular subjects in fiction. While UFOs are often later identified, sometimes identification may not be possible owing to the usually low quality of evidence related to UFO sightings (generally anecdotal evidence and eyewitness accounts). Stories of fantastical celestial apparitions have been told since antiquity, but the term "UFO" (or "UFOB") was officially created in 1953 by the United States Air Force (USAF) to serve as a catch-all for all such reports. In its initial definition, the USAF stated that a "UFOB" was "any airborne object which by performance, aerodynamic characteristics, or unusual features, does not conform to any presently known aircraft or missile type, or which cannot be positively identified as a familiar object." Accordingly, the term was initially restricted to that fraction of cases which remained unidentified after investigation, as the USAF was interested in potential national security reasons and/or "technical aspects" (see Air Force Regulation 200-2). During the late 1940s and through the 1950s, UFOs were often referred to popularly as "flying saucers" or "flying discs". The term UFO became more widespread during the 1950s, at first in technical literature, but later in popular use. UFOs garnered considerable interest during the Cold War, an era associated with a heightened concern for national security. Various studies have concluded that the phenomenon does not represent a threat to national security nor does it contain anything worthy of scientific pursuit (e.g., 1951 Flying Saucer Working Party, 1953 CIA Robertson Panel, USAF Project Blue Book, Condon Committee).

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Monday, July 21, 2014