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Espen

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Arctic Image of the Day
« on: July 05, 2013, 03:04:48 PM »
Just for the fun of it, if you find some funny motives along your studies in the Arctic Region you can post them here, here is the first one I picked up today, it is called Birdie Namkheng

Namkheng (น้ำแข็ง) = Hard Water = Ice (Thai)
« Last Edit: July 09, 2013, 07:23:31 PM by Espen »
Have a ice day!

theoldinsane

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Re: Image of the day
« Reply #1 on: July 05, 2013, 09:10:02 PM »
"Funny" motive 1 can be found at my blog here:

http://theoldinsane.blogspot.se/2013/06/fv16-pac-man-2013-guestpost.html

"Funny" motive 2 can be found here:

http://theoldinsane.blogspot.se/2013/07/fv17-two-species-close-to-extinction.html

I´m newbie on the Arctic "show" and I look at the development with enchantment mingled with terror. I do not have the skills to contribute, but I am grateful that this forum and Neven's blog exists. I learn new things every day from all of you.

Espen

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Re: Image of the Day
« Reply #2 on: July 08, 2013, 08:14:15 PM »
One of the Natural Beauties of Greenland Geikie Plateau and Dendritgletscher:

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Espen

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Re: Image of the Day
« Reply #3 on: July 09, 2013, 06:55:42 PM »
And today we have the very rare Greenland Lynx:
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Espen

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Re: Arctic Image of the Day
« Reply #4 on: July 10, 2013, 09:56:54 AM »
A mysterious shot of Jan Mayen Island:
Have a ice day!

danp

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Re: Arctic Image of the Day
« Reply #5 on: July 10, 2013, 11:48:15 AM »
I love the photos Espen!  keep them coming.

Espen

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Re: Arctic Image of the Day
« Reply #6 on: July 10, 2013, 11:59:50 AM »
Thanks DanP, I just want to reiterate that all are welcome to make their own contribution to Arctic Image of the day thread, the more the better!
Have a ice day!

pikaia

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Re: Arctic Image of the Day
« Reply #7 on: July 10, 2013, 12:19:55 PM »
On the animal theme, here is a Greenland goat:

« Last Edit: July 10, 2013, 12:35:27 PM by pikaia »

Laurent

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Re: Arctic Image of the Day
« Reply #8 on: July 10, 2013, 12:34:27 PM »
I see a beautiful dragon head (looking toward the left)

Espen

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Re: Arctic Image of the Day
« Reply #9 on: July 10, 2013, 03:29:25 PM »
Your Lucky Day?
« Last Edit: July 10, 2013, 03:45:00 PM by Espen »
Have a ice day!

helorime

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Re: Arctic Image of the Day
« Reply #10 on: July 10, 2013, 04:20:48 PM »
I have been looking at those elaborate swirls off the east coast of Greenland for some time.  What are they?
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Espen

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Re: Arctic Image of the Day
« Reply #11 on: July 10, 2013, 04:23:23 PM »
Hello Helorime,

It is the last stage of sea ice melt.
Have a ice day!

Phil.

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Re: Arctic Image of the Day
« Reply #12 on: July 10, 2013, 04:35:11 PM »
I have been looking at those elaborate swirls off the east coast of Greenland for some time.  What are they?

It looks like a von Karman vortex street to me, see the link for a great animation.

http://en.wikipedia.org/wiki/Kármán_vortex_street


Pmt111500

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Re: Arctic Image of the Day
« Reply #13 on: July 12, 2013, 06:00:21 AM »
I was looking on Modis r05c04 on 11/7/2013 and thinking it's a clear image, then took the 250m resolution and saw it was something else. contrast to maximum and here's the result. the cloud field itself (imho, all stratocumulus undulatus) expands to the neighboring tile and is about 1000km*400km in size or about the size and shape of state of California.
« Last Edit: July 12, 2013, 07:52:27 AM by Pmt111500 »
A quantity relates to a quantum like camel's back relates to camel's _______ ? (back, vertebra, vertebral tendon, spinal disc, paralysis)

Pmt111500

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Re: Arctic Image of the Day
« Reply #14 on: July 13, 2013, 06:04:14 AM »
graphical art from NP 12.07.2013 (stiched 250m res images around NP) image area c. 445*445 km, contrast 100,  brightness -90, so even a bit grey ice vanishes from the view. don't know what the 'black stripe' is.
« Last Edit: July 13, 2013, 06:10:45 AM by Pmt111500 »
A quantity relates to a quantum like camel's back relates to camel's _______ ? (back, vertebra, vertebral tendon, spinal disc, paralysis)

helorime

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Re: Arctic Image of the Day
« Reply #15 on: July 14, 2013, 02:41:02 AM »
Laughing man
Any sufficiently advanced technology is indistinguishable from magic.

Espen

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Re: Arctic Image of the Day
« Reply #16 on: July 16, 2013, 10:28:33 AM »
From Dove and Jøkelbugt:

Have a ice day!

OldLeatherneck

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Re: Arctic Image of the Day
« Reply #17 on: July 16, 2013, 01:50:29 PM »
We've all had days like this!!


Annual Greenlandic Dog Sled Races (1975)
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Espen

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Re: Arctic Image of the Day
« Reply #18 on: July 16, 2013, 02:44:34 PM »
Same procedure as last year and .......

The last sea ice of the season outside the Real Arctic Zone, Zaliv Akedemii / Akedemii Gulf Zaliv in the Sea of Othotsk.

Chince World Atlas: Akademii is a gulf in the region of Khabarovsk Krai, the country of Russia with an average elevation of -16 meter below sea level. The location is sparsely populated with 0 people per km2
Have a ice day!

Neven

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Re: Arctic Image of the Day
« Reply #19 on: July 16, 2013, 02:53:02 PM »
Is it my impression or did the sea ice persist very long there this year?

Here's one of the images in my collection:

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pikaia

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Re: Arctic Image of the Day
« Reply #20 on: July 16, 2013, 04:14:16 PM »
We've all had days like this!!


Annual Greenlandic Dog Sled Races (1975)
https://forum.arctic-sea-ice.net/index.php/topic,127.0.html

He probably wants to go at the front so that he gets a change of scenery!

ivica

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Re: Arctic Image of the Day
« Reply #21 on: July 16, 2013, 05:04:36 PM »
When did it escape from Loch Ness? :P (attached)

Espen

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Re: Arctic Image of the Day
« Reply #22 on: July 18, 2013, 12:58:03 PM »
I TOLD YOU!
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ivica

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Re: Arctic Image of the Day
« Reply #23 on: July 21, 2013, 01:12:03 AM »

Credits to: Phil.

Espen

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Re: Arctic Image of the Day
« Reply #24 on: July 22, 2013, 03:03:27 PM »
The "tropical" Islands of Franz Josef:

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Espen

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Re: Arctic Image of the Day
« Reply #25 on: July 22, 2013, 03:09:15 PM »
Just a reminder,  we now reached the time of season when the algae farming is in progress:

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Neven

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Re: Arctic Image of the Day
« Reply #26 on: July 22, 2013, 05:17:27 PM »
And there's one near Iceland as well:



Beautiful, absolutely stunning. I use them as desktop backgrounds.
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Phil.

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Re: Arctic Image of the Day
« Reply #27 on: July 22, 2013, 11:33:04 PM »
Check this one out! :D


Espen

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Re: Arctic Image of the Day
« Reply #28 on: July 22, 2013, 11:39:50 PM »
Check this one out! :D


I belive it is the infamous Birdie Namkheng, look at post at the top!
Have a ice day!

Espen

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Re: Arctic Image of the Day
« Reply #29 on: July 23, 2013, 12:20:36 AM »
And here we have the Icy Jellyfish from Hudson Bay:
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Espen

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Re: Arctic Image of the Day
« Reply #30 on: July 23, 2013, 07:32:20 PM »
And here is the amazing east coast of Greenland:

Please click on image to enlarge!
Have a ice day!

Espen

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Re: Arctic Image of the Day
« Reply #31 on: July 26, 2013, 01:52:14 PM »
Must be some kind of a dope party taking place in Siberia: 8)

« Last Edit: July 26, 2013, 02:00:37 PM by Espen »
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pikaia

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Re: Arctic Image of the Day
« Reply #32 on: July 27, 2013, 06:14:09 PM »
Greenland from the air.


Espen

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Re: Arctic Image of the Day
« Reply #33 on: July 27, 2013, 09:49:09 PM »
NIce pick Pikaia.

The Heat is on, open the windows please!
Have a ice day!

Espen

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Re: Arctic Image of the Day
« Reply #34 on: July 28, 2013, 09:59:31 AM »
Another image of Jan Mayen Island, notice that mustage like cloud formation.
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SteveMDFP

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Re: Arctic Image of the Day
« Reply #35 on: July 28, 2013, 01:33:34 PM »
Siberian wildfires, from today's arctic mosaic.  False-color shows smoke as rust-color. 
Hat-tip to Artful Dodger for predicting another fierce summer of Siberian fires. 


Laurent

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Re: Arctic Image of the Day
« Reply #36 on: July 30, 2013, 09:39:12 PM »
A massive algae blum ?
On the left Swalbard, on the right Scandinavia !
It is at least 800 km in lengh and 300 km wide ! ouahou !!!

pikaia

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Re: Arctic Image of the Day
« Reply #37 on: July 31, 2013, 03:56:57 PM »

Artful Dodger

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Re: Arctic Image of the Day
« Reply #38 on: July 31, 2013, 06:57:49 PM »
Siberian wildfires, from today's arctic mosaic.  False-color shows smoke as rust-color. 
Hat-tip to Artful Dodger for predicting another fierce summer of Siberian fires.

Hi Steve,

Even in visible wavelengths, the smoke is clearly visible. If anything, I think the extent of this year's Siberian fires is greater than last year. Then there's James Bay... :P
Cheers!
Lodger

SteveMDFP

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Re: Arctic Image of the Day
« Reply #39 on: August 01, 2013, 01:18:43 AM »
Lodger,
I agree.  I check the mosaic image daily, and I don't recall any of last year's images looking so depressingly smoky.

Though last year, I think the worst of the fires was earlier, so soot may have affected melting more last year. 

Laurent

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Re: Arctic Image of the Day
« Reply #40 on: August 01, 2013, 10:12:49 AM »
Want some marshmallow?


jdallen

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Re: Arctic Image of the Day
« Reply #41 on: August 01, 2013, 05:34:36 PM »
Want some marshmallow?

Tell me... That loop in the North Atlantic crosses 55 degrees of latitude, doesn't it....

Break in the Farrell and Arctic cell circulation?
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Laurent

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Re: Arctic Image of the Day
« Reply #42 on: August 01, 2013, 05:59:05 PM »
Yes that nice loop and the rest of the jet stream completely shattered !


danp

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Re: Arctic Image of the Day
« Reply #43 on: August 01, 2013, 09:02:45 PM »
MODIS/ASTER image from July 12th, from a frame in the Beaufort sea maybe 200 km north of the Alaskan coast.  Cropped image is full-resolution, 15m/pixel; full image is an overview of the 60x90km frame. 

ASTER has a narrow field of view and thus doesn't have full coverage of the Earth like Terra/Aqua.  In addition, free data access is pretty restrictive except for the US & territories, where level 1B data is fully open.  [EDIT:  I realized that was confusing.  Data taken over the US & territories (apparently extending out at least a little into the waters around Alaska) is fully open-access to anyone in the world.  Other data you have to pay for, or else you have to jump through a bunch of hoops before you get it.]

This is one of a swath of 5 frames, the only set since July 1st in open access and within the Arctic.  Converted from hdf using GDAL and then some gimp to combine, etc.


« Last Edit: August 01, 2013, 10:05:28 PM by danp »

Neven

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Re: Arctic Image of the Day
« Reply #44 on: August 01, 2013, 09:49:15 PM »
Wow, one wonders how long it takes for that kind of ice to disappear.
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Peter Ellis

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Re: Arctic Image of the Day
« Reply #45 on: August 01, 2013, 10:38:42 PM »
The take-home message I get from that is just how heterogeneous sea ice is.  Each one of those crazy white lines represents a ridge, which can be up to ten times the thickness of the flat grey/brown areas in between.  ~50% of the entire Arctic ice volume is in the ridges.  Eyeballing that picture, however good the resolution, isn't going to tell us that much about how much ice is actually there.  I guess this is why the ice models used in PIPS (and PIOMAS etc) model ice as a statistical distribution within each pixel, rather than a single value per pixel.

As for your question, it would help if we had even one more picture from the same satellite to compare!  Danp, where did you get it?  Are there any pictures available for previous years, where the subsequent melt behaviour is known?

danp

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Re: Arctic Image of the Day
« Reply #46 on: August 01, 2013, 11:04:11 PM »
The take-home message I get from that is just how heterogeneous sea ice is.  Each one of those crazy white lines represents a ridge, which can be up to ten times the thickness of the flat grey/brown areas in between.  ~50% of the entire Arctic ice volume is in the ridges.  Eyeballing that picture, however good the resolution, isn't going to tell us that much about how much ice is actually there.  I guess this is why the ice models used in PIPS (and PIOMAS etc) model ice as a statistical distribution within each pixel, rather than a single value per pixel.

As for your question, it would help if we had even one more picture from the same satellite to compare!  Danp, where did you get it?  Are there any pictures available for previous years, where the subsequent melt behaviour is known?

I totally agree.  It was eye-opening to see the crazy map of features at this detail level.  It may be asking a little much of this data source to find truly comparable images, but because of the built-in geographic restriction, if we can find any, they will at least be from nearly the same area of the southern Beaufort.  I only just decided to go digging.

The public data is available from REVERB (also one of my main sources for Terra/Aqua data), via geographic search.  Here's the search I did to find this data:

http://tinyurl.com/kyerueu

The dataset is "L1B Registered Radiance at the sensor" (not the expedited equivalent).   The visible/near IR bands within the hdf file are 1, 2, 3N, 3B.  I used 3N, 2, 1 as RGB, but you don't gain much over just a grayscale image from ch. 1, which is in the green.  (3B is an offset backward-looking channel for stereoscopic images). 

I just repeated the search (July 1-31) as a repeated annual search since 2000 and came up with 358 results, including the 5 from  this year (2 of which are right at the shoreline or just inland).  So it does look like it might be a plausible project to compare ice at the southern edge of the Beaufort year-to-year in this fashion.

Pmt111500

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Re: Arctic Image of the Day
« Reply #47 on: August 04, 2013, 09:39:48 AM »
northpole hole with scale. 03.08.2013
« Last Edit: August 04, 2013, 09:56:12 AM by Pmt111500 »
A quantity relates to a quantum like camel's back relates to camel's _______ ? (back, vertebra, vertebral tendon, spinal disc, paralysis)

MOwens

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Re: Arctic Image of the Day
« Reply #48 on: August 05, 2013, 06:05:19 AM »
O-Buoy 7:


danp

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Re: Arctic Image of the Day
« Reply #49 on: August 05, 2013, 07:48:14 AM »
Hah!  well spotted!