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Sea-Floor Sunday #72: Indus submarine canyon

August 29, 2010

The ongoing flooding of the Indus River in Pakistan inspired me to search for an image of the Indus submarine canyon for this week’s Sea-Floor Sunday image. The image below is from this website describing a research cruise in 2008-2009 that acquired multibeam bathymetry data and cores. Check out the site for more details about the study.

The purple colors are deeper water and nicely show the sinuous canyon. The canyon is between 1 and 2 km wide and up to 1,100 m (~3,600 ft) deep. The tight meander bends remind me of this place. This submarine canyon feeds the enormous Indus submarine fan, which is 1500 km (900 mi) long and 960 km (575 mi) wide, second only to the Bengal submarine fan in size.

Bathymetry of Indus submarine canyon (credit: http://www.abdn.ac.uk/~wpg008/PelagiaIndusCruise.html)

Here’s a zoomed-out map from Google Earth for context.

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4 Comments leave one →
  1. August 31, 2010 4:15 am

    What is the curved ridge on the NW side of the abyssal plain?

    • August 31, 2010 6:36 am

      I forgot the name of the ridge, but that’s the boundary between Indian and Arabian plates

  2. Amber permalink
    September 1, 2010 2:49 am

    Hi,

    I am trying to find maps of ocean depth and annual average wind speed across global regions and my searches keep leading me to your site. Would you know where I could find this type of data to a reasonably detailed level?

    Thanks

    • September 2, 2010 5:08 pm

      Amber, no sorry, I don’t have maps of ocean surface processes at my finger tips … I’d start at NOAA, happy hunting!

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