Categories: world

Anak Krakatau: Finnish radar satellite eyes tsunami volcano

Image copyrightICEYE CaptionsThe view was built by data acquired on Wednesday Here is a new picture of Anak Krakatau, the…

 Anak Krakatau

Image copyright


The view was built by data acquired on Wednesday

 Presentation White Space

Here is a new picture of Anak Krakatau, the collapsed Indonesian volcano that generated the tsunami on December 22 that destroyed local coastlines.

The image was collected from radar images that we acquired on Wednesday from the ICEYE-X2 satellite.

This is a small, innovative spacecraft from Finland that will soon be part of a large circular network of sensors.

The volcano continues to evolve after the wife’s catastrophic failure.

The original height of 340m was reduced to just 110m in the disaster, but further outbreaks have since begun to reform the remnant structure.

“This image indicates that the building is in a construction phase, where the crater is no longer connected to the sea as it was in a week or so,” noted Dr. Andy Hopper of Leeds University, UK.

More than 400 people died along Java and Sumatra’s coastal areas in the strait tree when the tsunami struck.

  • “Suitcase spa ce radar returns image
  • Satellites show the extent of volcanic collapse

Scientists rely on radar satellites in the days immediately after the collapse to try to understand what had happened.

Radar will see The ground day or night and even piercing thick clouds.

Scientists were happy that the European Union’s Sentinel platform went over just a few hours after the incident, but such observations are not always so current.

Helsinki-based ICEYE hopes to fix this by setting up a constellation of small radar satellites.

ICEYE-X2 is the second spacecraft to be launched, and another five to eight will be launched this year, all of these platforms are about the size of one suitcase – considerably smaller than the traditional radar sensors placed in circulation

 BBC map

The picture at the top of this page is trimmed and compressed row, but the original data generates a resolution of 3m at 3m (functions greater than this on the ground can be distinguished).

ICEYE wants to connect this sharp vision with high temporal resolution, which means that a single spot on the earth’s surface can be examined several times a day.

A constellation of 30 in-orbit platforms could observe spaces, such as London or Paris, say about 15 times a day.

Indonesia says it will double the size of its emergency aid budget after its deadliest year for natural disasters in a decade.

In addition to the incident on December 22, an earthquake and tsunami cost more than 2000 people on the island of Sulawesi in September.

The Indonesian Finance Ministry says $ 750 million will be reserved for immediate disaster response, while another $ 350 million will be reserved for reconstruction work.

[email protected] and follow me on Twitter: @BBCAmos

Published by