TPI Tuesday – Pipeline Repairs Detected

/in /by

Last week we showed you that we detected the collapsing river bank in Limburg. This week, we are showing the detection of the works that followed this collapse, which are also described in this post of Visser & Smit Hanab: https://lnkd.in/eeFX2Jpw:

What do we see in today’s GIF?

  • That repair works were detected at 4 different locations around the river, indicated by change blobs. These change blobs are automatically constructed by CoSMiC-EYE through analysis of a stack of weather independent SAR imagery.
  • High-resolution optical satellite imagery that was acquired after the repair works were detected through the SAR-imagery.
  • Sentinel-2 imagery (bottom-left picture) in which the works can be seen as well.

The advantage of using SAR imagery is that independent of whether there are clouds or not, activities can be detected. Besides, in order to also assess what’s going on exactly at the location where an activity is detected, we automatically task optical satellites to acquire an optical image for the location as soon as possible after the event was detected.