Persistent Blue Spiral in the Gulf of Oman

Trailspotter

Senior Member.
While browsing recent Earth images on NASA EOSDIS Worldview, I spotted a blue spiral in the Gulf of Oman.

The image above was taken by the Terra satellite on May 4, 2015, but the spiral can be seen on the images taken by both Terra and Aqua satellites between April 23 and May 8. Here is an animation made from the daily images from April 29 to May 4:
PBEiGO.gif

It is not a new phenomenon, similar blue spirals have been captured previously by the MODIS satellites and described in Earth Observatory blogs. One of these was spotted south of Africa on December 26, 2011:

The Eddy and the Plankton (February 11, 2012)
The other was spotted south of Australia on December 30, 2013:

Spiral of Plankton (January 9, 2014)
 
Last edited:

Svartbjørn

Senior Member.
Learn somethin new every day.. I figured there was a method for stirring up the oceanic waters (rivers and streams have similar features) Ive just never seen or heard of one until now.. thats amazing! Ive done some digging but havent come across anything.. does anyone know if one of these Edis has been spotted during a red tide or does the fact that its a red tide preclude its existence? Im assuming that they would since these edis also oxygenate the water as they bring up the nutrients, and red tides usually deplete the dissolved oxygen. Any ideas?
 

Spectrar Ghost

Senior Member.
I would imagine that red tides would not be associated with eddies because red tides are largely a coastal phenomenon, and the type of deep water eddies like those above would be disrupted by the littoral environment. Generally at the coast there are enough nutrients present eddies wouldn't be required to create a bloom.
 

Spectrar Ghost

Senior Member.
Wiki indicates the increasing frequency of red tides is thought to be caused by a combination of increased nutrient load, primarily from agricultural runoff, and warming SSTs, which meshes with what I've read elsewhere.
 

Svartbjørn

Senior Member.
Wiki indicates the increasing frequency of red tides is thought to be caused by a combination of increased nutrient load, primarily from agricultural runoff, and warming SSTs, which meshes with what I've read elsewhere.

Aye.. thats what sparked my curiosity. The main process with these eddies is churning the waters so that the nutrients at the bottom, come closer to the surface. Seeing as this one is in the Gulf of Oman.. while it isnt EXACTLY coastal, is pretty close given the size... might cause a phytoplankton bloom.

Although given what youve just said, I can see itd be much closer to land because of the agricultural run offs etc. Thanks Ghost.
 

Trailspotter

Senior Member.
I actually was looking for recent satellite images of contrails between 30° N and 30° S in the EOSDIS Worldview (there are some), when I stumble upon this spiral. As soon as I saw it, I knew what it was, so it was not a "skydentify" subject. There was no apparent debunking angle either, but I saw a few connections to other Metabunk fora and decided to start a new thread here.

One connection is an analogy to the persistent contrail formation -- like the passing plane reveals the presence of necessary atmospheric conditions, the plankton bloom reveals the presence of the eddies in the Ocean, which otherwise would be invisible to the MODIS satellites.

A second connection is to geoengineering -- this is a nature's demonstration of the likely consequences of ocean fertilisation.

A third one is obvious -- a giant blue spiral in the ocean could be a "100% proof" of somebody's favourite CT.
 

Trailspotter

Senior Member.
I found a scientific paper suggesting that the eddy in the Gulf of Oman is a seasonal phenomenon:
http://archimer.ifremer.fr/doc/00171/28206/33894.pdf

I looked for similar eddies in the Gulf of Oman in 2013 and 2014 but found none. Unfortunately, the EOSDIS Wordview does not go that far back to check if there were blue spirals in the satellite images from Spring 2008, 2011, and 2012. This can be checked by other means, but it will take a time.
 

Whitebeard

Senior Member.
A third one is obvious -- a giant blue spiral in the ocean could be a "100% proof" of somebody's favourite CT.
like this?
http://www.utaot.com/2013/01/21/an-...-interdimensional-vortex-in-the-gulf-of-aden/

 
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