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The storms that had socked us in at Granite Park Chalet lifted and broke up Thursday evening.
© Katie LaSalle-Lowery
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Edited Landsat 8 image of the breakup of the large iceberg that just split away from the Larsen C ice shelf.
Image source: earthobservatory.nasa.gov/IOTD/view.php?id=90627
Original caption: When a massive iceberg first broke away from Antarctica’s Larsen C ice shelf sometime between July 10-12, 2017, scientists knew it would eventually start breaking apart. That’s the normal life cycle of a drifting iceberg, which is at the mercy of the ocean’s battering currents, tides, and winds. Already those forces have turned A-68 into two named bergs, A-68A and A-68B, as well as a handful of pieces too small to be named by the U.S. National Ice Center.
In the two weeks following the initial break, satellite imagery has documented the iceberg’s motion. The southern end appears to have slammed into a mix of floating ice above Gipps Ice Rise—the bump of snow- and ice-covered bedrock visible in the lower right of the image. Then the berg rebounded and its northern end swung back toward the just opened rift. The resulting impact caused both the berg’s north end and the ice shelf to fracture.
“The back-and-forth movement of A-68 looks akin to maneuvering a parallel-parked car out of a tight parking space—like an Austin Powers three-point turn,” said Christopher Shuman, a cryospheric scientist at NASA’s Goddard Space Flight Center and the University of Maryland, Baltimore County.
The fractured berg and shelf are visible in these images, acquired on July 21, 2017, by the Thermal Infrared Sensor (TIRS) on the Landsat 8 satellite. The false-color view shows the relative warmth or coolness across the region. White indicates where the ice or water surface is warmest, most notably in the widening strip of mélange between the main iceberg and the remaining ice shelf. Dark grays and blacks are the coldest areas of ice.
So far, the calving and fracturing has taken place under the dark cover of polar night during Antarctica’s austral winter. That makes thermal imagery from satellites a critical tool for “seeing” the action. Adrian Luckman of the UK-based Project MIDAS first saw the berg break away in thermal data from the Moderate Resolution Imaging Spectroradiometer (MODIS), before Sentinel radar data became available later on July 12.
The thermal view above shows a remarkable amount of detail. The bright signature of relatively warm ocean water appears around A-68B, which broke off sometime between late July 13 and early July 14. More subtle fractures north of A-68B are visible on the shelf; these pieces will eventually break free and move out to sea with the rest of the ice.
All of the ice pieces large and small are subject to the water currents of the Weddell Gyre and the strong weather systems that can whip up blinding snow and blanket the region in clouds for many days at a time. This same ocean circulation that will eventually move the bergs northward toward South Georgia Island.
In the meantime, scientists will have to wait until August—the end of polar night here—to get their first natural-color images since the long-growing Larsen C rift became a complete break.
References and Related Reading
NASA Earth Observatory, Rift and Calving at Larsen C Ice Shelf.
NASA Earth Observatory (2017, July 12) Antarctic Ice Shelf Sheds Massive Iceberg.
NASA Earth Observatory (2017, July 12) Landsat Spots Birth of Iceberg A-68.
Project MIDAS (2017, July 12) Larsen C calves trillion ton iceberg. Accessed July 12, 2017.
NASA Earth Observatory images by Jesse Allen, using Landsat data from the U.S. Geological Survey. Story by Kathryn Hansen.
Instrument(s):
Landsat 8 - TIRS
Singer/Songwriter Showcase Hosted by Karla Vega. Band Breakup Season. In this picture: David Torre (Viola), Greg Byers (Cello), Elina Sherman (Vocals), Fernando Perdomo (Vocals, Guitars).
Models: Valentina Ieridou & Georgios Hadjimanolis
Texture by: Les Brumes
Concept by Theodoros Georgiou
This picture was taken May 17, 2005 by my sister.
It was taken 10 days before our wedding. This was the point where he has decided to just let me go because he is certain that I wasn't the one for him... Capturing the end of a relationship. As I look to the picture, he looks at me so coldly while I was there wanting to work things out and would do anything to save the relationship... but it was a good thing that he ended it. I am better off without him and his judgmental family
that's me (geek girl) being in love with the geek :-(
For those of you who don't know, me 'n Papa moved out a few weeks ago. Somtimes parents don't get along anymore. Mother and Papa said it wasn't anything any of us did; it was just time to go separate ways.
I got to pick who I would stay with and of course, I picked Papa. I may never have to take a bath again!!! Yay!
Singer/Songwriter Showcase Hosted by Karla Vega. Band Breakup Season. In this picture:Greg Byers (Cello), Elina Sherman (Vocals), Fernando Perdomo (Vocals, Guitars).
This composite image has been enhanced to capture the relatively faint structures during the decaying phase of the aurora late in the night, although there is a shap and bright ray to the northeast. Taken around 0105 UT.
A conversation with Scott from Two Claws Jewelry inspired me to post this. Made in 2001 after breaking up with a man I never should have been with in the first place. I transformed him into a shadow of a lizard because he was a manipulative, posessive, twisted, dark-souled, liar of a man. I took his eyes away! It is printed on stretched canvas and the beads are embroidered. It has never hung in my home, but I keep it around.
The diaries I kept over a period of six years - all 2000 pages, which later became my book BREAKUP: enduring divorce.
The disc they were scanned onto.
What to do with a day and a half near Bergen? Rent a car and drive for the hills. I enjoyed exploring the fjords, charted my path from waterfall to waterfall and looked for small roads that traced along the fjords or through back valleys. Timing was ideal, as the trip fell when the fjords were breaking up and shortly after a recent dusting of snow.
For licensing or usage, please reach out directly.
I published BREAKUP because nothing like it existed: an account of divorce written by a man in real time, not as an afterthought, with the 'benefit' of hindsight. Breakup takes you right inside the cauldron of marital disintegration. It's a map of the minefield of divorce that will guide you through safely and help you to move on.
I can't even remember the movie...it was Ice Harvest with John Cusack,Billy Bob Thornton...meandering but a fine Saturday glass of wine flick...
Pason Redhead Actress, Vine Video, Photo, Redheads Reaction to Breakup, , vine.co/Pason, vine.co/v/e6DVe9pUq9l,
www.pasonactress.com, www.imdb.me/pason, www.RedheadActress.com
All Relationships must be end one day, either with marriage or with breackup, and i chose breackup coz the marriage was the conflict.
In short... when girls intent for marriage just take your staff and say Bye Bye.
Dedicated to Miss. N
- www.kevin-palmer.com - There were all kinds of interesting patterns and shapes in the ice along the Tongue River in the canyon.
This boy used stationary for all his previous letters to me, but note that this is a folded-over post-it note. One of the letters had an image of a cartoon character skiing. He went over it with a pen and then wrote in the margin that he had drawn it.
We met at camp. We didn't kiss or even hold hands, as far as I remember. He lived 45 minutes from me, so we never visited. I wasn't that into him, but he got the last word in.