Support the Arctic Sea Ice Forum and Blog

Author Topic: Petermann Gletscher / Petermann Fjord / North West Greenland  (Read 293985 times)

blumenkraft

  • Young ice
  • Posts: 3775
  • Fans of Hans Ø Club - circa 2018
    • View Profile
  • Liked: 1326
  • Likes Given: 2126
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #700 on: October 22, 2019, 03:42:57 PM »
Wait a second, is it going backward??
Unlearn things daily.

Tor Bejnar

  • Young ice
  • Posts: 3370
    • View Profile
  • Liked: 607
  • Likes Given: 274
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #701 on: October 29, 2019, 03:13:37 PM »
Me and my lineations.  Red circles one. (See thread that started with a poll that asked when a crack would occur in this area, including an enlargement of this lineation from October 2.)  Orange circles a lineation 20 km upstream.  (Petermann Glacier is about 15 km wide in the red circle [okay, oval] area.) Screen print from Polar View image from 2019-10-28.
Arctic ice is healthy for children and other living things.

blumenkraft

  • Young ice
  • Posts: 3775
  • Fans of Hans Ø Club - circa 2018
    • View Profile
  • Liked: 1326
  • Likes Given: 2126
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #702 on: December 03, 2019, 05:46:13 PM »
Finally some info! \o/

Blog: “Back in Petermann Fjord”

https://polar.se/en/news/blog-back-in-petermann-fjord-english/
Unlearn things daily.

blumenkraft

  • Young ice
  • Posts: 3775
  • Fans of Hans Ø Club - circa 2018
    • View Profile
  • Liked: 1326
  • Likes Given: 2126
Unlearn things daily.

blumenkraft

  • Young ice
  • Posts: 3775
  • Fans of Hans Ø Club - circa 2018
    • View Profile
  • Liked: 1326
  • Likes Given: 2126
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #704 on: January 30, 2020, 06:21:21 PM »
Most beautiful satellite glitch <3
Unlearn things daily.

nukefix

  • Frazil ice
  • Posts: 463
    • View Profile
  • Liked: 10
  • Likes Given: 1
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #705 on: January 31, 2020, 07:55:52 AM »
Most beautiful satellite glitch <3
Looks like an orthorectification-error ... what is the source of that image?

edit: seems to be PolarView. I would guess that for some reason the geocoding of the image partially failed, as if they used an incorrect DEM, even though they don't use the DEM at all but only ellipsoid geocode  ???
« Last Edit: January 31, 2020, 08:02:24 AM by nukefix »

blumenkraft

  • Young ice
  • Posts: 3775
  • Fans of Hans Ø Club - circa 2018
    • View Profile
  • Liked: 1326
  • Likes Given: 2126
Unlearn things daily.

blumenkraft

  • Young ice
  • Posts: 3775
  • Fans of Hans Ø Club - circa 2018
    • View Profile
  • Liked: 1326
  • Likes Given: 2126
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #707 on: February 07, 2020, 06:43:10 PM »
Mean flightpaths are a thing!

I mean, WTFareyoukiddingme??
Unlearn things daily.

Tor Bejnar

  • Young ice
  • Posts: 3370
    • View Profile
  • Liked: 607
  • Likes Given: 274
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #708 on: February 07, 2020, 07:43:26 PM »
From PolarView (Feb 7).  Is this what they call "fuzzy logic"? :D
The crack I'm watching 'so closely' is on the right.  Most of the wavy distraction is on the land beside Petermann Glacier.
Arctic ice is healthy for children and other living things.

blumenkraft

  • Young ice
  • Posts: 3775
  • Fans of Hans Ø Club - circa 2018
    • View Profile
  • Liked: 1326
  • Likes Given: 2126
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #709 on: February 07, 2020, 07:47:39 PM »
A persistent glitch over several different pictures. It's really weird...

Aliens?
Unlearn things daily.

sqwazw

  • New ice
  • Posts: 11
    • View Profile
  • Liked: 1
  • Likes Given: 37
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #710 on: February 09, 2020, 10:30:50 AM »
A persistent glitch over several different pictures. It's really weird...

Aliens?
Aliens have better things to do. Mechanical vibration on the sensor? Hard disk humming at EOL?

blumenkraft

  • Young ice
  • Posts: 3775
  • Fans of Hans Ø Club - circa 2018
    • View Profile
  • Liked: 1326
  • Likes Given: 2126
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #711 on: February 09, 2020, 10:35:04 AM »
Ok, i can imagine many reasons. But why is it glitching here? And only here for what i can say.
Unlearn things daily.

Tor Bejnar

  • Young ice
  • Posts: 3370
    • View Profile
  • Liked: 607
  • Likes Given: 274
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #712 on: February 09, 2020, 03:00:26 PM »
Despite the "fuzzy logic" in the lower left of this screen print (PolarView Feb. 8) the trans-lateral crack appears to have a (different kind of) fuzzy connection to the SW (left) shore.  Previous images have suggested this feature (e.g., Dec. 6).

Note: I usually post comments about the potential rifting in this area on the Poll thread focused on this.
Arctic ice is healthy for children and other living things.

Espen

  • Young ice
  • Posts: 3255
    • View Profile
  • Liked: 185
  • Likes Given: 0
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #713 on: February 19, 2020, 10:38:56 PM »
The situation at Petermann so far in 2020:
Have a ice day!

Thomas Barlow

  • Frazil ice
  • Posts: 115
    • View Profile
  • Liked: 30
  • Likes Given: 23
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #714 on: March 14, 2020, 03:51:57 AM »
I'd be surprised if this summer doesn't spell the end for this, as others have been pointing out for a while now.

Sentinel-1 SAR imagery
Acquired: 13-03-2020 11:50:54 UTC
« Last Edit: March 14, 2020, 03:59:15 AM by Thomas Barlow »

Tor Bejnar

  • Young ice
  • Posts: 3370
    • View Profile
  • Liked: 607
  • Likes Given: 274
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #715 on: May 03, 2020, 07:12:38 AM »
Sentinel-hub Playground image (more or less: pink = ice; blue = melting ...) showing lateral crevasse that hasn't budged this month (more or less -- under right date bar).

What amazes me is the two spots with a hint of blue on the frozen-over pond (under the "-02" of the left image date - about 4 date-bar widths down).  (From reading elsewhere, I know such supraglacial lakes can have a core of liquid water through the winter if deep enough, but that amazes me too.)
Arctic ice is healthy for children and other living things.

Errorr

  • New ice
  • Posts: 9
    • View Profile
  • Liked: 6
  • Likes Given: 0
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #716 on: May 14, 2020, 03:48:25 AM »
Not sure if this is the best location but just wanted to add as we approach another calving I got bored last year and tracked the last iceberg remnant throughout the years. I believe it is the same P-II-B that was studied at least through 2014 or so. In 2014 is grounded itself off Baffin just south of the settlement of Qikiqtarjuaq and has spent the years since being slowly disintegrated. Last summer it was grounded again and I lost track of it but the first pic is a worldview capture from mid-summer 2019. It floated up the nearby Matak Fjord into Auyuittuq National Park and finally shattered around mid-september. The leftovers spread throughout the area but the largest sliver left is currently frozen in the adjacent coronation fjord (67.24, -64.3). This is probably its final year as a recognizable iceberg as it slowly awaits its doom the coming summer. I am looking forward to see the evolution of the next ice island and where its journey takes it.

oren

  • Moderator
  • First-year ice
  • Posts: 5162
    • View Profile
  • Liked: 1406
  • Likes Given: 1459
Re: Petermann Gletscher / Petermann Fjord / North West Greenland
« Reply #717 on: May 14, 2020, 04:57:45 AM »
Thank you for the update Errorr, and welcome back after a long period of silence.
It's amazing that a remnant of the ice island is still around.