Signe Aaboe
@signeaaboe.bsky.social
Climate and sea-ice scientist at MET Norway.
Research interests include sea ice, oceans, and polar climate. Living in the far north and love gardening, hiking, paddling, and drinking coffee. Any opinions expressed are my own.
Research interests include sea ice, oceans, and polar climate. Living in the far north and love gardening, hiking, paddling, and drinking coffee. Any opinions expressed are my own.
Arctic sea-ice extent just passed the border into the "record-low" domain.
Same for Barents, Baffin, Hudson, and Svalbard regions.
Second-lowest globally.
🌊❄️🥼🧪📉
Same for Barents, Baffin, Hudson, and Svalbard regions.
Second-lowest globally.
🌊❄️🥼🧪📉
November 27, 2025 at 11:59 AM
Arctic sea-ice extent just passed the border into the "record-low" domain.
Same for Barents, Baffin, Hudson, and Svalbard regions.
Second-lowest globally.
🌊❄️🥼🧪📉
Same for Barents, Baffin, Hudson, and Svalbard regions.
Second-lowest globally.
🌊❄️🥼🧪📉
Woops, the cloud was not a cloud but a firework that started to explode 🎉
November 26, 2025 at 8:07 PM
Woops, the cloud was not a cloud but a firework that started to explode 🎉
Halfway through November,
and Arctic sea ice is missing in the Atlantic sector:
Hudson Bay,
Baffin Bay & Labrador sea (fell out of the "normal" zone),
and the Barents Sea.
and Arctic sea ice is missing in the Atlantic sector:
Hudson Bay,
Baffin Bay & Labrador sea (fell out of the "normal" zone),
and the Barents Sea.
November 21, 2025 at 1:36 PM
Halfway through November,
and Arctic sea ice is missing in the Atlantic sector:
Hudson Bay,
Baffin Bay & Labrador sea (fell out of the "normal" zone),
and the Barents Sea.
and Arctic sea ice is missing in the Atlantic sector:
Hudson Bay,
Baffin Bay & Labrador sea (fell out of the "normal" zone),
and the Barents Sea.
Yesterday it was time to put the garlic in the ground.
1. first find the planting tray and clear away the snow,
2. dig in the bokashi,
3. put in 50 garlic cloves, and
4. top it all off with a blanket of snow
☃️🧄🌱❄️😋
1. first find the planting tray and clear away the snow,
2. dig in the bokashi,
3. put in 50 garlic cloves, and
4. top it all off with a blanket of snow
☃️🧄🌱❄️😋
November 21, 2025 at 7:36 AM
Yesterday it was time to put the garlic in the ground.
1. first find the planting tray and clear away the snow,
2. dig in the bokashi,
3. put in 50 garlic cloves, and
4. top it all off with a blanket of snow
☃️🧄🌱❄️😋
1. first find the planting tray and clear away the snow,
2. dig in the bokashi,
3. put in 50 garlic cloves, and
4. top it all off with a blanket of snow
☃️🧄🌱❄️😋
I found the stairs 😀💪🌨️
November 16, 2025 at 4:32 PM
I found the stairs 😀💪🌨️
Okay, got it. Winter has arrived, suddenly and abrupt 🤩⛷️❄️
November 16, 2025 at 10:29 AM
Okay, got it. Winter has arrived, suddenly and abrupt 🤩⛷️❄️
Refreezing is occurring in the Arctic. Worth keeping an eye on where the 2025 ice growth goes in the coming days. 🧐 (at present, third-lowest for this day of year.)
November 5, 2025 at 8:43 AM
Refreezing is occurring in the Arctic. Worth keeping an eye on where the 2025 ice growth goes in the coming days. 🧐 (at present, third-lowest for this day of year.)
Hver måned publiseres METs statusrapport om Været i Norge. Rapporten oppsummerer også status på den polare sjøisen ❄️
November 4, 2025 at 12:18 PM
Hver måned publiseres METs statusrapport om Været i Norge. Rapporten oppsummerer også status på den polare sjøisen ❄️
The Moon rise from yesterday and today 🌕
Such a lovely Blood Moon and Lunar eclipse 😍
🧪
Such a lovely Blood Moon and Lunar eclipse 😍
🧪
September 7, 2025 at 7:21 PM
The Moon rise from yesterday and today 🌕
Such a lovely Blood Moon and Lunar eclipse 😍
🧪
Such a lovely Blood Moon and Lunar eclipse 😍
🧪
🌍 Have you heard of the ESA Climate Change Initiative Toolbox?
The comprehensive Python package gives researchers seamless access to decades of satellite climate data.
Give it a try 👉https://climate.esa.int/en/data/toolbox
The comprehensive Python package gives researchers seamless access to decades of satellite climate data.
Give it a try 👉https://climate.esa.int/en/data/toolbox
September 5, 2025 at 9:01 AM
🌍 Have you heard of the ESA Climate Change Initiative Toolbox?
The comprehensive Python package gives researchers seamless access to decades of satellite climate data.
Give it a try 👉https://climate.esa.int/en/data/toolbox
The comprehensive Python package gives researchers seamless access to decades of satellite climate data.
Give it a try 👉https://climate.esa.int/en/data/toolbox
«I’m stuffed and just need a little nap»
🐝💤🌱🌻
🐝💤🌱🌻
August 18, 2025 at 8:23 AM
«I’m stuffed and just need a little nap»
🐝💤🌱🌻
🐝💤🌱🌻
We're approaching the annual sea-ice minimum in the Arctic. Over the past few days, the sea-ice extent has been at a record low for this time of year in the Greenland Sea and Svalbard region.
Data source: @osi-saf.eumetsat.int
Data source: @osi-saf.eumetsat.int
August 14, 2025 at 9:28 AM
We're approaching the annual sea-ice minimum in the Arctic. Over the past few days, the sea-ice extent has been at a record low for this time of year in the Greenland Sea and Svalbard region.
Data source: @osi-saf.eumetsat.int
Data source: @osi-saf.eumetsat.int
It's important to pay close attention to the weather forecast.
I plan to follow it exactly as stated today 😁
I plan to follow it exactly as stated today 😁
August 13, 2025 at 8:14 AM
It's important to pay close attention to the weather forecast.
I plan to follow it exactly as stated today 😁
I plan to follow it exactly as stated today 😁
Happy (Giant) Sun Flower 🌻🌱
Born in 13 degrees and rain. Grew through heat periods. Survived droughts, and stood straight through heavy winds.
I’m so impressed 😍
Born in 13 degrees and rain. Grew through heat periods. Survived droughts, and stood straight through heavy winds.
I’m so impressed 😍
August 9, 2025 at 10:36 AM
Happy (Giant) Sun Flower 🌻🌱
Born in 13 degrees and rain. Grew through heat periods. Survived droughts, and stood straight through heavy winds.
I’m so impressed 😍
Born in 13 degrees and rain. Grew through heat periods. Survived droughts, and stood straight through heavy winds.
I’m so impressed 😍
Disregarding the extreme and record-low sea-ice extent in Antarctic the last two years, this year's July extent is exceptionally low, ranking as the 3rd lowest on record.
The July extent over the last four years differs significantly from that of the previous four decades.
@osi-saf.eumetsat.int
The July extent over the last four years differs significantly from that of the previous four decades.
@osi-saf.eumetsat.int
August 2, 2025 at 12:15 PM
Disregarding the extreme and record-low sea-ice extent in Antarctic the last two years, this year's July extent is exceptionally low, ranking as the 3rd lowest on record.
The July extent over the last four years differs significantly from that of the previous four decades.
@osi-saf.eumetsat.int
The July extent over the last four years differs significantly from that of the previous four decades.
@osi-saf.eumetsat.int
New status on OSISAF Sea Ice Index.
With the continuation of SSMIS data distribution, the sea-ice index v2.2 (based on SSMIS) will continue as usual.
The newly implemented branch providing a calibrated AMSR-based index will be monitored and work as a backup.
👉 osi-saf.eumetsat.int/community/li...
With the continuation of SSMIS data distribution, the sea-ice index v2.2 (based on SSMIS) will continue as usual.
The newly implemented branch providing a calibrated AMSR-based index will be monitored and work as a backup.
👉 osi-saf.eumetsat.int/community/li...
August 1, 2025 at 3:11 PM
New status on OSISAF Sea Ice Index.
With the continuation of SSMIS data distribution, the sea-ice index v2.2 (based on SSMIS) will continue as usual.
The newly implemented branch providing a calibrated AMSR-based index will be monitored and work as a backup.
👉 osi-saf.eumetsat.int/community/li...
With the continuation of SSMIS data distribution, the sea-ice index v2.2 (based on SSMIS) will continue as usual.
The newly implemented branch providing a calibrated AMSR-based index will be monitored and work as a backup.
👉 osi-saf.eumetsat.int/community/li...
How do we at @osi-saf.eumetsat.int prepare the Sea-Ice Index for the potential End-of-Life of SSMIS after July?
1. Compute indexes from AMSR-2 instead
2. Develop a calibration tuned over 2021-2025
3. Continue the index time series with calibrated AMSR-based indexes from August 2025.
👉 (link below)
1. Compute indexes from AMSR-2 instead
2. Develop a calibration tuned over 2021-2025
3. Continue the index time series with calibrated AMSR-based indexes from August 2025.
👉 (link below)
July 30, 2025 at 12:04 PM
How do we at @osi-saf.eumetsat.int prepare the Sea-Ice Index for the potential End-of-Life of SSMIS after July?
1. Compute indexes from AMSR-2 instead
2. Develop a calibration tuned over 2021-2025
3. Continue the index time series with calibrated AMSR-based indexes from August 2025.
👉 (link below)
1. Compute indexes from AMSR-2 instead
2. Develop a calibration tuned over 2021-2025
3. Continue the index time series with calibrated AMSR-based indexes from August 2025.
👉 (link below)
I’m gonna enjoy a couple of sunsets on Thursday 😜
(Had to think for a second to understand 😅)
(Had to think for a second to understand 😅)
July 22, 2025 at 8:25 PM
I’m gonna enjoy a couple of sunsets on Thursday 😜
(Had to think for a second to understand 😅)
(Had to think for a second to understand 😅)
Somewhere in the North
and the never-setting-sun ☀️
Same view before and after a beautiful evening paddle on a mirror-like ocean 🛶
and the never-setting-sun ☀️
Same view before and after a beautiful evening paddle on a mirror-like ocean 🛶
July 18, 2025 at 10:24 AM
Somewhere in the North
and the never-setting-sun ☀️
Same view before and after a beautiful evening paddle on a mirror-like ocean 🛶
and the never-setting-sun ☀️
Same view before and after a beautiful evening paddle on a mirror-like ocean 🛶
📣 Join our Webinar "Beyond Sea Ice Area" on September 19th.
Sea Ice Age is the focus🔎
Main topics:
1. Review ECV sea ice products
2. Refine sea ice age product
3. Explore polar data issues
For more information and registration, 👉https://forms.gle/Ure5JxiGUZsYyjuf9
Please repost and share
#ESA
Sea Ice Age is the focus🔎
Main topics:
1. Review ECV sea ice products
2. Refine sea ice age product
3. Explore polar data issues
For more information and registration, 👉https://forms.gle/Ure5JxiGUZsYyjuf9
Please repost and share
#ESA
July 15, 2025 at 9:47 AM
📣 Join our Webinar "Beyond Sea Ice Area" on September 19th.
Sea Ice Age is the focus🔎
Main topics:
1. Review ECV sea ice products
2. Refine sea ice age product
3. Explore polar data issues
For more information and registration, 👉https://forms.gle/Ure5JxiGUZsYyjuf9
Please repost and share
#ESA
Sea Ice Age is the focus🔎
Main topics:
1. Review ECV sea ice products
2. Refine sea ice age product
3. Explore polar data issues
For more information and registration, 👉https://forms.gle/Ure5JxiGUZsYyjuf9
Please repost and share
#ESA
Arctic sea-ice concentration, first 11 days of July 2025.
Compared with 1981-2010 mean ice extent, we see
a retreated ice edge in the entire Atlantic sector.
Note, the flipping between maps based on AMSR-2 (OSI-438 product) and SSMIS (OSI-430), relative to the SMMR/SSMI/SSMIS product (OSI-450).
Compared with 1981-2010 mean ice extent, we see
a retreated ice edge in the entire Atlantic sector.
Note, the flipping between maps based on AMSR-2 (OSI-438 product) and SSMIS (OSI-430), relative to the SMMR/SSMI/SSMIS product (OSI-450).
July 12, 2025 at 7:57 PM
Arctic sea-ice concentration, first 11 days of July 2025.
Compared with 1981-2010 mean ice extent, we see
a retreated ice edge in the entire Atlantic sector.
Note, the flipping between maps based on AMSR-2 (OSI-438 product) and SSMIS (OSI-430), relative to the SMMR/SSMI/SSMIS product (OSI-450).
Compared with 1981-2010 mean ice extent, we see
a retreated ice edge in the entire Atlantic sector.
Note, the flipping between maps based on AMSR-2 (OSI-438 product) and SSMIS (OSI-430), relative to the SMMR/SSMI/SSMIS product (OSI-450).
Since mid-June, we've had record-low sea-ice extent in the Arctic (for this time of year) almost every day. And still approaching the annual minimum in September 🧐📉
🧪🥼❄️⚒️
Data: Sea Ice Index from @osi-saf.eumetsat.int
🧪🥼❄️⚒️
Data: Sea Ice Index from @osi-saf.eumetsat.int
July 8, 2025 at 1:59 PM
Since mid-June, we've had record-low sea-ice extent in the Arctic (for this time of year) almost every day. And still approaching the annual minimum in September 🧐📉
🧪🥼❄️⚒️
Data: Sea Ice Index from @osi-saf.eumetsat.int
🧪🥼❄️⚒️
Data: Sea Ice Index from @osi-saf.eumetsat.int
Additionally, when comparing OSI-438 with the similar (but different underlying algorithm) near-real-time sea-ice concentration (OSI-408) based on AMSR-2, they appear quite comparable. (OSI-438 to the right)
July 5, 2025 at 10:11 AM
Additionally, when comparing OSI-438 with the similar (but different underlying algorithm) near-real-time sea-ice concentration (OSI-408) based on AMSR-2, they appear quite comparable. (OSI-438 to the right)
When comparing the new AMSR2-based sea-ice concentration (OSI-438) with the "still-going-strong-but-soon-to-end" SSMIS-based sea-ice concentration (OSI-430-a), these are relatively equal except for the higher resolution in OSI-438. (OSI-438 to the right)
July 5, 2025 at 10:07 AM
When comparing the new AMSR2-based sea-ice concentration (OSI-438) with the "still-going-strong-but-soon-to-end" SSMIS-based sea-ice concentration (OSI-430-a), these are relatively equal except for the higher resolution in OSI-438. (OSI-438 to the right)