Flooding in Southeast Asia

Flooding in Southeast Asia
  • Credit:

    NASA Earth Observatory image created by Jesse Allen, using EO-1 ALI data provided courtesy of the NASA EO-1 team. Caption by Michon Scott.

In mid-November 2011, floods were receding in Thailand’s historic city of Ayutthaya, but only slowly. Large areas of standing water remained. The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured the top image on November 13, 2011, and the bottom image on October 23, 2011.

Both images show flooded conditions, but a close comparison shows that the water levels have dropped slightly in some areas by mid-November. Route 32, partially underwater in late October, appears largely dry weeks later. Muddy water has retreated slightly from land southwest of the curving Chao Phraya River in mid-November, and dark flood water is less prevalent in the city center. Nevertheless, substantial flooding remains.

Situated along the Chao Phraya River north of Bangkok, Ayutthaya is a United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage site. Founded in the fourteenth century, the city is now a major draw for tourists. By mid-November 2011, some city attractions had reopened, according to news reports, including Wat Phra Si San Phet and a major elephant park.

  1. References

  2. Bangkok Post. (2011, November 17). Ayutthaya, after the floods. Bangkok Post. Accessed November 18, 2011.
  3. Doksone, T. (2011, November 15). Ayutthaya elephant palace reopens in Thailand. Huffington Post. Accessed November 18, 2011.
  4. World Heritage. (2011). Historic City of Ayutthaya. UNESCO. Accessed November 18, 2011.

Images & Animations


File Dimensions

  • 720x480
  • JPEG
  • 3000x4000
  • JPEG 3 MB
  • GeoTIFF 20 MB
  • 720x480
  • JPEG
  • 3000x4000
  • JPEG 4 MB
  • GeoTIFF 35 MB

Note: Often times, due to the size, browsers have a difficult time opening and displaying images. If you experiece an error when clicking on an image link, please try directly downloading the image (using a right click, save as method) to view it locally.


  • Data Date:

    November 13, 2011
  • Visualization Date:

    November 16, 2011
  • Sensor(s):

    EO-1 - ALI


NASA - National Aeronautics and Space Administration