After a relatively rapid decline at the beginning of June Arctic sea extent is now very close to the 2010s average:
Both 2020 and 2021 began relatively rapid declines of their own at the beginning of July, so it will be interesting to see if 2022 follows suit.
Most of the fast ice off Utqiaġvik has recently disappeared:
Meanwhile further out into the Chukchi Sea the sea ice looks to be in poor shape at the moment, with surface melting apparent across the entire region:
By way of a change we’ll start the month of May with a closer look at one of the ice mass balance buoys deployed in the Beaufort Sea last Autumn. IMB buoy 569620 was deployed at 78.5 N, 147.0 W on September 3rd 2021, and since then it has drifted to 81.0 N, 147.7 W. Here is the buoy’s record of atmospheric conditions above the ice floe it’s embedded in since then:
Here too is the buoy’s record of the temperature of the ice floe itself, as well as the thickness of the ice and the snow layer covering it:
There’s a few things to note at first glance. The ice floe continued to decrease in thickness into November. It’s thickness then started to increase, but is currently still less than 2 meters. Also the snow depth has gradually been increasing, and (apart from some data glitches!) is now ~38 cm. Finally, for the moment at least, the ice surface temperature has been slowly warming since mid February and is now ~-11 °C.
Returning to more familiar territory, high resolution AMSR2 Arctic sea ice area has taken a bit of a tumble recently:
followed less steeply by extent:
Not unexpectedly, the Pacific periphery is currently leading the decline:
[Edit – May 4th]
The Rutgers Snow Lab has updated its northern hemisphere snow cover bar chart for April 2022:
The May edition of the NSIDC’s Arctic Sea Ice News has also just been published. It summarises April 2022 as follows:
Average Arctic sea ice extent for April 2022 was 14.06 million square kilometers (5.43 million square miles). This was 630,000 square kilometers (243,000 square miles) below the 1981 to 2010 average and ranked eleventh lowest in the 44-year satellite record.
Extent declined slowly through the beginning of the month, with only 87,000 square kilometers (33,600 square miles) of ice loss between April 1 and April 10. The decline then proceeded at an average pace for this time of year through the reminder of the month.
During April, temperatures at the 925 mb level (about 2,500 feet above the surface) over the Arctic Ocean were above average. Most areas were 2 to 3 degrees Celsius (4 to 5 degrees Fahrenheit) above average, but in the Beaufort Sea, April temperatures were up to 5 to 6 degrees Celsius (9 to 11 degrees Fahrenheit) above average:
This was accompanied by a strong Beaufort High pressure cell through the month:
The NSIDC’s update also refers to the Chukchi Sea polynya we’ve been keeping an eye on here:
Strong offshore winds over the northwest coast of Alaska led to openings in the ice cover, called polynyas. The first pulse of winds began on March 21. At that time, surface air temperatures were still well below freezing, and the water in the coastal polynya quickly refroze. By April 9, the offshore push of the ice ceased and the polynya iced over completely.
However, starting on April 12, a second round of offshore wind pushed the ice away from the coast, initiating another polynya. Refreezing began anew in the open water areas, but the ice growth was noticeably slower, reflecting the higher surface air temperatures by the end of the month
The NSIDC also updated their graph of sea ice age, on this occasion for the week of March 12th to 18th over the years:
Arctic sea ice news concludes with brief news of the recent death of Canadian Arctic scientist David Barber. CBC News’s obituary for David provides more details:
Family and friends are mourning the loss of the visionary Arctic researcher and University of Manitoba professor David Barber.
Barber, who was a distinguished professor, the founding director of the Centre for Earth Observation Science and associate dean of research in the faculty of environment, earth and resource, passed away on Friday after suffering complications from cardiac arrest.
Barber, 61, is survived by his wife Lucette, three children and two grandchildren.
David Barber (left) pictured with his team on an Arctic expedition. Photo: Julien Barber[Edit – May 9th]
The waters of the Mackenzie River are starting to spread over the fast ice off the delta:
“False colour” image of the Beaufort Sea on May 7th from the MODIS instrument on the Terra satellite[Edit – May 11th]
The Polar Science Center at the University of Washington has released the PIOMAS volume data for April 2022:
Average Arctic sea ice volume in April 2022 was 23,000 km3. This value is the 9th lowest on record for April, about 2,300 km3 above the record set in 2017. Monthly ice volume was 30% below the maximum in 1979 and 15% below the mean value for 1979-2021. Average April 2022 ice volume was 1.45 standard deviations above the 1979-2021 trend line.
The daily volume numbers reveal the PIOMAS maximum volume for 2022 to be 23,225 km3 on April 26th.
The PSC report continues:
Ice growth anomalies for April 2022 continued to be at the upper end of the most recent decade with a mean ice thickness (above 15 cm thickness) at the middle of recent values.
The ice thickness anomaly map for April 2022 relative to 2011-2020 divides the Arctic in two halves with positive anomalies in the “Western Arctic” but negative anomalies in “Eastern Arctic”. A narrow band of negative anomalies remains along the coast of North Greenland but a positive anomaly exists north of Baffin Island.
Note that the “positive anomaly north of Baffin Island” referred to is not apparent in the CryoSat 2 ice thickness anomaly map, although there is agreement about the thicker ice in the eastern Beaufort Sea:
[Edit – May 23rd]
CryoSat-2 thickness maps stopped for the Summer in mid April. I’ve been hoping for mid May data from the PIOMAS team, but in vain so far. In its continuing absence here is a “work in progress” PIOMAS thickness map for the end of April:
The sea ice in Chaunskaya Bay and along the adjacent coast of the East Siberian Sea is starting to look distinctly damp:
“False colour” image of the East Siberian Sea on May 23rd from the MODIS instrument on the Terra satellite
That’s not too surprising when you also look at recent temperatures in Pevek, which have been approaching all time highs for the date:
P.S. The Mackenzie River has reappeared from under the clouds and is now largely liquid:
“False colour” image of the Mackenzie River and Beaufort Sea on May 23rd from the MODIS instrument on the Terra satellite[Edit – May 27th]
Some surface melt is now visible on the fast ice at Utqiaġvik:
No doubt the recent above zero temperatures are responsible, but the forecast is for colder conditions to return:
Discussion continues on the new open thread for June 2022.
The April edition of the NSIDC’s Arctic Sea Ice News summarises March 2022 as follows:
Average Arctic sea ice extent for March 2022 was 14.59 million square kilometers (5.63 million square miles), ranking ninth lowest in the satellite record…
The total decline, after a series of small ups and downs, was only 250,000 square kilometers (96,500 square miles):
Counter to what might be expected given the very slow rate of sea ice loss over the month as a whole, air temperatures at the 925 millibar level (about 2,500 feet above the surface) were above average over all of the Arctic Ocean:
March temperatures were up to 9 degrees Celsius (16 degrees Fahrenheit) higher than average north of the Canadian Arctic Archipelago, up to 6 degrees Celsius (11 degrees Fahrenheit) above average in the East Siberian Sea, but up to 5 degrees Celsius (9 degrees Fahrenheit) above average over a wide area.
The key features of the sea level pressure pattern were high pressure (an anticyclone) over the central Arctic Ocean, a trough of low pressure extending into the Barents Sea, and an unusually high pressure over Northern Europe:
While having an anticyclone over the central Arctic Ocean is quite typical for this time of year, the combination of the high pressure over northern Europe and the pressure trough to the west led to a strong pressure gradient, leading to strong winds from south through the Norwegian and Barents Seas…
This can be tied to the extreme warm event over the Arctic Ocean seen in the middle of the month, associated with strong water vapor transport and the passage of several strong cyclones.
The Polar Science Center at the University of Washington has also released the PIOMAS volume data for March 2022:
Average Arctic sea ice volume in March 2022 was 21,700 km3. This value is the 6th lowest on record for March, about 2,200 km3 above the record set in 2017. Monthly ice volume was 38% below the maximum in 1979 and 25% below the mean value for 1979-2021:
Ice growth anomalies for March 2022 continued to be at the upper end of the most recent decade with a mean ice thickness (above 15 cm thickness) at the middle of recent values:
The ice thickness anomaly map for March 2022 relative to 2011-2020 divides the Arctic in two halves with positive anomalies in the “Western Arctic” but negative anomalies in “Eastern Arctic”. A narrow band of negative anomalies remains along the coast of North of Greenland but positive anomaly exists north of Baffin Island.
CryoSat 2 ice thickness shows an similar pattern of sea ice thickness anomalies though the areas North of Greenland and Baffin Bay show substantial differences:
[Edit – April 10th]
Here are the latest graphs of our favourite “high resolution” AMSR2 metrics, which combine recent data from the Alfred Wegener Institute with historical data from the University of Hamburg:
As you can see, there have indeed been a few ups and downs! Click the image below to see a 10 Mb animation of ice motion over the last few weeks:
The obvious point to note at the moment is that there are currently long flaw leads on both the Siberian and Canadian sides of the Arctic Ocean. The animation also reveals episodes of open water in the Beaufort and Chukchi Seas, as well as north of Franz Josef Land and Svalbard.
The ice in those areas is still very thin on the latest AWI CryoSat-2/SMOS sea ice thickness map:
[Edit – April 11th]
Here too is the latest AWI CryoSat-2/SMOS volume graph:
The reanalysed data is now showing something of a surge towards the end of February.
[Edit – April 23rd]
Here’s the last “near real time” AWI CryoSat-2/SMOS Arctic sea ice thickness map for Spring 2022:
The significantly thinner areas in the Beaufort and Chukchi Seas are even more pronounced than previously. Here also is the associated CS2/SMOS volume graph:
The 2022 maximum volume based on NRT data is 19719 km³ on April 5th. Expect that to be revised upwards when the reanalysed data is ultimately published.
Going back to 2 dimensions, the assorted “ups and downs” now seem to have resolved into the melting season proper:
The peripheral sea have been responsible for most of the recent decline:
However as mentioned above, the Chukchi Sea has been experiencing some ups and downs of its own. Perhaps the sun is now high enough in the sky for the most recent “down” to stick around for the summer?
“True colour” image of the Chukchi Sea on April 21st from the MODIS instrument on the Terra satellite[Edit – April 24th]
Over the last couple of days some open water has appeared in the Beaufort Sea off the Mackenzie Delta:
“True colour” image of the Beaufort Sea on April 23rd from the MODIS instrument on the Terra satellite [Edit – April 25th]
Especially for Taylor, here’s the GFS Arctic snow depth forecast for 10 days into the future:
For detailed analysis of Arctic sea ice extent over the next few weeks please see the 2022 maximum extent thread. However to get the new open thread going here is the current JAXA/ViSHOP extent graph:
It’s looking more and more as though the real maximum for 2022 occurred close the false peak on February 23rd.
Arctic sea ice volume will keep increasing for a while longer. Here is the current AWI CryoSat-2/SMOS volume graph:
The recent “flat line” in extent is in part due to recent events on the Pacific periphery of the Arctic. Take a look at this animation of AMSR2 sea ice concentration:
The gap varies depending on how the wind blows, but there is still evidence of open water (or very thin ice) along the shore of the Beaufort and Chukchi Seas. Here’s the Mackenzie Delta and the adjacent Beaufort Sea on March 5th:
A detailed dissection of the 2021 minimum of various Arctic sea ice extent metrics can be found on a dedicated thread. All other Arctic news in September will be found below.
Let’s start with a map of sea ice age at the beginning of August:
Firstly notice the absence of 3+ year old ice off the coast of north east Greenland. Also visible is a band of 4+ year old ice across the Pacific side of the Arctic Basin, which has slowed melting in the region and explains the following regional sea ice area graphs:
Next here’s the current AMSR2 concentration map:
There is currently a large area of open water in the Wandel Sea to the north of Greenland. There is also an arm of old ice across the Beaufort and Chukchi Seas which is still clearly visible, but also visible is the recent reduction in sea ice concentration in the region. By way of explanation, here’s another look at the thickness of an ice floe currently situated to the north of the Chukchi at 74.84 N, 164.29 W, as measured by an ice mass balance buoy:
As the 2021 melting season draws towards its conclusion the floe is experiencing rapid bottom melt. How much longer will this floe and others like it last? Will it survive to become an “old ice” dot on next year’s ice age maps?
[Edit – September 6th]
As Wipneus puts it on the Arctic Sea Ice Forum, “PIOMAS has updated the gridded thickness data up to the 31st of August”. Here’s the latest modelled thickness map, which shows the thickest remaining ice located north of the Canadian Arctic Archipelago rather than north of Greenland:
The accompanying volume graph shows 2021 in 7th lowest position, at 4.7 thousand km3:
Here too are the current PIOMAS volume trends for each month of the year:
The Swedish icebreaker Oden has recently been exploring the area between northern Greenland and the North Pole as part of the Synoptic Arctic Survey expedition:
Here are the measurements of water temperature it has recorded over the past few days:
Ranging between -0.4 °C and -1.0 °C it doesn’t look as though the 2021 refreeze will be starting in the Wandel Sea just yet.
That shows plenty of old ice still left in the Beaufort Sea. However ice mass balance buoy 52460 now appears to floating free of its ice floe at 75.56 N, 165.99 W:
[Edit – September 14th]
“New ice” has started to appear in previously open water on the Canadian Ice Service charts. See area E south east of Resolute:
Volume calculated from the thickness data currently show that 2021’s minimum was reached on September 7th at 4.64 thousand km3, which is the 8th lowest value in the Polar Science Center’s record.
[Edit – September 23rd]
NASA have just announced a new paper about clouds in the Arctic. Highly relevant given their recent overview of the 2021 melting season!
Clouds are one of the biggest wildcards in predictions of how much and how fast the Arctic will continue to warm in the future. Depending on the time of the year and the changing environment in which they form and exist, clouds can both act to warm and cool the surface below them.
For decades, scientists have assumed that losses in Arctic sea ice cover allow for the formation of more clouds near the ocean’s surface. Now, new NASA research shows that by releasing heat and moisture through a large hole in sea ice known as a polynya, the exposed ocean fuels the formation of more clouds that trap heat in the atmosphere and hinder the refreezing of new sea ice.
The findings come from a study over a section of northern Baffin Bay between Greenland and Canada known as the North Water Polynya. The research is among the first to probe the interactions between the polynya and clouds with active sensors on satellites, which allowed scientists to analyze clouds vertically at lower and higher levels in the atmosphere.
The approach allowed scientists to more accurately spot how cloud formation changed near the ocean’s surface over the polynya and the surrounding sea ice.
The results of the ARCUS Sea Ice Prediction Network August call have been released, and here is the outlook for the 2021 minimum September mean Arctic sea ice extent:
The median prediction for the mean sea ice extent during the month of September 2021 is 4.39 million km2. According to ARCUS:
As of 22 August 2021, the Arctic sea-ice extent was 5.58 (compared with 25 August 2020 value of 4.43) million square kilometers. Arctic sea-ice extent in 2021 remains well below the climatological median and has closely followed the 2012 values for much of the summer but has diverged to higher sea-ice extent starting in early August. The forecasts continue to support September 2021 mean sea-ice extent being well above the September 2020 value. July sea-ice retreat has been greatest in the Eurasian seas, particularly in the East Siberian Sea, making the 2021 ice edge well north of the long-term median edge in Eurasia. Sea ice retreated since the end of July along the northern coast of Alaska, although the ice edge is near its climatological position, which makes the Beaufort and Chukchi sea ice extent the largest at this time of year since 2006. A tongue of sea ice that has been present all summer continues to extend close to land in the Kara Sea, making the northeast passage likely to remain blocked for the first time in several years. Half the models which provide spatial data to the SIO predict that the tongue is likely to survive.
Now let’s take a look at a range of assorted extent measurements. Here’s the NSIDC’s 5 day average extent:
Let’s first of all take a look at JAXA’s flavour of Arctic sea ice extent:
After reaching lowest extent for the date in early July, the weather in the Arctic Basin was stormy, cloudy and cool compared to other recent years until the last few days of the month:
Here’s the same period in 2020 for comparison purposes:
Consequently the rate of extent loss in the second half of July was significantly less than last year.
Let’s begin the month with a “true colour” image from the Terra satellite of the Laptev Sea and thereabouts:
The blueish tinge indicates the appearance of melt ponds almost everywhere over the land-fast ice currently covering the majority of the Laptev Sea.
Let’s also take a look at the high resolution AMSR2 metrics for the end of May 2021:
Thanks to the recent “brief hiatus” in areal decline, Arctic wide compaction is no longer in record territory:
Finally, for the moment at least, here is the Danish Meteorological Institute’s high Arctic temperature data in the form of a graph of freezing degree days:
For some reason the data file still doesn’t include data to the end of May, but things won’t change much by then. Over the winter as a whole only 2016/17 was significantly warmer.
Let the 2021 Arctic sea ice summer melting season officially begin!
[Edit – June 4th]
Perhaps unsurprisingly the GFS forecast from four days ago hasn’t quite worked out as predicted. The Arctic as a whole is certainly on the warm side, with a +2 C anomaly at this moment:
However the 966 hPa MSLP cyclone predicted for Monday is now forecast to be a mere 978 hPa:
With 3 days to go there is a reasonable chance of it verifying in the “New Arctic” of 2021. As you can see from the map above a large area of the Central Arctic has now lost its snow cover. This is confirmed by the Rutgers Snow Lab northern hemisphere data for May:
A new Sentinel 3 melt pond fraction product from the University of Bremen confirms that on the fast ice in the Laptev & East Siberian Seas snow cover has departed and melt ponds have arrived:
In other news Wipneus has released the latest PIOMAS gridded thickness and volume data on the Arctic Sea Ice Forum:
For some strange reason 2021 volume at the end of May is almost identical to 2012 and 2020! Plus of course there’s the modelled volume export from the Central Arctic via the Fram Strait:
[Edit – June 6th]
This “false colour” image reveals that there’s virtually no snow cover left on land, and this “false colour” image reveals that the land-fast ice in the East Siberian Sea is now awash with melt ponds:
[Edit – June 8th]
The forecast low pressure area appears to have bottomed out near the Severnaya Zemlya islands with a 978 hPa MSLP:
High resolution AMSR2 Arctic sea ice area is now 2nd lowest for the date after 2016:
Laptev sea ice area is still lowest for the data, and looks as though it will retain that position for a while:
[Edit – June 9th]
The effect of the recent heat and wind on the remaining sea ice in the Laptev Sea is now all too apparent:
It’s also evident in the DMI >80N temperature graph, which has now reached sea ice “melting point” ahead of the climatology:
Note that the blue line is actually above the “freezing point” of salty Arctic sea water.
[Edit – June 13th]
Fairly clear skies over the Laptev Sea and the western East Siberian Sea, revealing wall to wall melt ponds and the land-fast ice starting to break up near the coast as well as on the edge of the now open ocean:
Plus yesterday’s view of the Beaufort Sea, revealing fast ice breaking up in the western entrance to the McClure Strait:
[Edit – June 18th]
A clearish view of the Laptev Sea today, revealing assorted cracks in a variety of locations:
[Edit – June 20th]
The latest mid-month PIOMAS thickness/volume numbers have been released:
[Edit – June 23rd]
The skies over the Vilkitsky Strait have been cloudy for a few days. However a fairly clear view yesterday reveals that breakup is well under way in what is usually one the last areas along the Northern Sea Route to become navigable:
[Edit – June 26th]
The land-fast ice in the East Siberian Sea has started to disintegrate en masse:
Data from ice mass balance buoy 441910, currently located at 76.1 N, 151.1 W in the Beaufort Sea, reveals the onset of both surface and bottom melt:
It’s May Day 2021, and just for a change we’re going to start the month off with a pretty picture!
Parts of the Laptev Sea are starting to look distinctly “warm” in the infra-red. Here’s a “false colour” image taken by the Terra satellite during a gap in the clouds:
We have reached the time of year when the SMOS “thin ice thickness” readings start being affected by surface melt, but let’s take a look anyway:
That area of the Laptev certainly appears to be either thin or melting.
Meanwhile on the Canadian side of the Arctic the fast ice off the Mackenzie Delta is starting to get damp, even though the river itself still looks to be fairly well frozen:
It will also be interesting to follow the progress of this large floe as it heads towards oblivion through the Fram Strait:
The new month starts with JAXA extent “lowest for the date in the satellite record” by a whisker:
The high resolution Arctic sea ice area and extent graphs based on the University of Hamburg’s AMSR2 concentration data are also in “statistical ties” for that honour, in records going back to 2013:
The 2020 melting season currently seems to be a game of two (geographical) halves. The sea ice on the Siberian side of the Arctic is currently at record lows:
Whereas the Beaufort Sea is near a record high:
Currently the tell tale signs of surface melt are visible across most of the central Arctic, as are the large number of wildfires across Arctic Siberia:
NASA Worldview “false-color” image of the Arctic on July 1st 2020, derived from the MODIS sensor on the Terra satellite
[Edit – July 4th]
The June 30th PIOMAS gridded thickness numbers have been released, and here are the results of Wipneus’s number crunching:
This month including a visualisation of the increasing negative anomaly:
[Edit – July 6th]
A break in the clouds over the North Pole reveals the onset of surface melt:
NASA Worldview “false-color” image of the North Pole on July 6th 2020, derived from the MODIS sensor on the Terra satellite
[Edit – July 8th]
After a brief hiatus there are once again some ice mass balance buoys installed at assorted locations across the Arctic. Some have ceased to function, but one of the buoys installed as part of the MOSAiC expedition is still sending back data as it heads towards the Fram Strait. Buoy 387850 is currently located at 81.66 N, 4.19 E. Here’s its ice mass balance plot:
As you can see, both surface and bottom melt are well under way, with just over a meter of ice still remaining.
Now let’s take a look at buoy 386840, currently located at 74.30 N, 132.60 W in the Beaufort Sea:
It looks as though the ice thickness has increased, but surely that can’t be right at this time of year? To try and find out I downloaded the raw data and plotted the temperature readings from the buoy’s thermistor string:
It looks to me as though the ice floe carrying the buoy is currently floating on some warm fresh water from a recently drained melt pond, which is confusing the sensor designed to measure the position of the bottom of the ice. There certainly seems to be far less than the claimed “1.653 m snow and ice thickness” still remaining to be melted!
[Edit – July 15th]
A very unusual image. Hardly a cloud in the sky over the North Pole yesterday:
NASA Worldview “false-color” image of the North Pole on July 14th 2020, derived from the MODIS sensor on the Terra satellite
The July 2020 extent “plummet” shows no signs of ending just yet. Here’s the JAXA/ViSHOP version:
[Edit – July 17th]
JAXA AMSR2 extent is now below 7 million km², and the high resolution version is lower still:
As the “Laptev Bite” and the Atlantic periphery of open water extends further towards the North Pole, Central Arctic Basin extent is now also at record lows for the date in the AMSR2 record:
Extent is currently lowest in the satellite era by a long way, but modelled volume is only fourth lowest!
Watch this space!
[Edit – July 21th]
At long last there’s a sub 1000 hPa MSLP low pressure area slowly wending its way across the central Arctic:
It seems to have bottomed out at 997 hPa. Perhaps this will inhibit the ongoing “plummet” in extent? JAXA extent fell by 114,342 km2 yesterday.
[Edit – July 23rd]
The Northern Sea Route has opened unusually early this year:
Based on the AMSR2 concentration maps from the University of Hamburg that happened on July 13th. The final choke point, as is so often the case, was the Vilkitsky Strait. According to the charts from the Russian Arctic and Antarctic Research Institute, by the 14th there was a narrow way through occupied by no more than 3/10 concentration ice:
[Edit – July 25th]
A mere three days away, and the GFS and ECMWF forecasts are in agreement, so there is a decent chance this setup will materialise in the real world:
A 972(ish) hPa MSLP cyclone sitting over the ice Beaufort Sea by 12Z on Tuesday.
[Edit – July 27th]
The Sea Ice Prediction Network July forecast for this year’s September minimum extent have been released. Here’s the graphical overview:
This year’s median projected value from the July forecasts of 4.3 million square kilometers is essentially identical to the median from the June forecasts. Quartiles are 4.1 and 4.6 million square kilometers. As was also the case for June, only two projections, both by dynamic models, are for a new record low, below the mark of 3.57 million square kilometers set in 2012. One dynamical model predicts the September sea-ice extent above 5.0 million square kilometers, compared to two in the June report.
Note that the numbers quoted are for the average NSIDC extent across the month of September, not the lowest daily JAXA extent, which I suggested earlier would be “below 4 million km²” this year.
Meanwhile over on Twitter this evening (UTC):
Stronger summer Arctic storms seems to be a consequence of climate change. But a deep cyclone in the central Arctic can help to accelerate sea ice melt even further.
The MSLP of the (Great?) Arctic cyclone sank below 970 hPa overnight:
After a fitful night's sleep what with one thing and another I wake to find that the (great?) #Arctic cyclone of July 2020 has sunk to a new low of 969 hPa.
Here’s an early false colour snapshot of how (s)he looks from on high this afternoon (UTC), courtesy of the MODIS instrument on the Terra satellite:
[Edit – July 29th]
First up today we have a more complete “true colour” image of the cyclone doing its worst yesterday, including a fairly clear view in the bottom left corner of the initial damage to the sea ice covering the eastern Beaufort Sea. This one is from the Aqua satellite:
Watch this space!
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