Amazing how many times we need to keep saying this... *No*, there is not record high (land or sea) ice at the polar caps h/t: Graphics:
A reconstruction of late-summer #Arctic sea ice extent over approximately the last 1,500 years + Figure reproduced from + Overview: + Download at
Change in land ice mass - GRACE satellite (through early 2017). Looking forward to GRACE-FO & more incredible data!
Change in land ice mass measured by GRACE satellite in Antarctica and Greenland. Looking forward to data from GRACE-FO to extend the record! Methods can be found from at . My graphic can also be downloaded at .
100 years of September sea ice... My animation has been updated to the new version 2 of the Walsh et al. data set (h/t: ). Total data available from 1850 through 2017. + Summary of data: + Download this graphic:
Daily #Arctic sea ice extent and its anomaly (departure from average) over the satellite era... Still versions at:
Change in land ice mass measured by GRACE satellite (now updated through mid-2017). Looking forward to GRACE-FO & more incredible data! Data and methods can be found from at . My graphic can be downloaded at .
GRACE satellite data show av annual ice sheet loss by gigatonnes in 15 yrs: Antarctica 127; Greenland 286 pic
Similar picture as last January - we are currently near or at record low sea ice extents in both the #Arctic and #Antarctic [Graphics: , Data: ]
Changes in annual #Arctic sea ice extent (left) and volume (right) during the last 40 years... Graphic:
#Arctic sea ice extent is currently the 4th lowest on record (JAXA data). • about 310,000 km² less the 2010s mean • about 760,000 km² less the 2000s mean • about 1,250,000 km² less the 1990s mean • about 1,660,000 km² less the 1980s mean More plots:
Changes in annual #Arctic sea ice extent (left) and volume (right) during the last 41 years... Graphic:
+ Arctic air temperatures - 📈 + Land ice mass - 📉 + Arctic sea ice extent - 📉 + Arctic sea ice volume - 📉 + Carbon dioxide (CO₂) - 📈 Graphics:
In addition to changes in wintertime #Arctic sea ice extent, there is a clear long-term declining trend in total sea ice volume (with some year-to-year variability) + Data: + Graphics:
Arctic sea ice and #dataviz ❄️💻📉 Satellite data goes back to 1979. But we can also picture the state of the ice in the distant past. And that helps understand #globalwarming Find out how ▶️ ▶️ ▶️ (📊)
Last year averaged both the 2nd lowest #Arctic sea ice extent (left) and volume (right) on record... [Graphic also available at: ]
100 years of September sea ice... Happy #ArcticSeaIceDay! + Data [1850-2013]: + overview: + Graphic download:
Sea ice extent in the #Arctic and #Antarctic remained below average for the majority of 2019. Data from . [Graphic available at ]
Refreshing my climate dynamics lecture on sea ice using 's amazing website () and hadn't seen this reconstruction graph before. Devastating.
Unsurprisingly, #Arctic sea ice extent is more than 2 standard deviations below the climatological average once again. Data from . Graphs:
Changes in #Arctic sea ice over the satellite era (yearly averages)... + Download graphic:
In keeping with this graphic theme today, here are daily Arctic sea ice extents and their anomalies - through December 2017. Available at
Visualisations of land and sea ice change by including several to 2017.
Evolution of November #Arctic sea ice volume during the last 41 years (2019 is the 3rd lowest)... + Download graphic: + Data information:
Changes in land ice mass measured by GRACE satellite in Antarctica and Greenland - now with the addition of GRACE-FO data! 📉 Methods can be found from at . My graphic can also be downloaded at .
Both #Arctic and #Antarctic sea ice extents are currently more than 1 million km² below average (anomaly) [daily data]... Graphics:
I've finally updated many of my Arctic climate/sea ice visuals through the start of 2020: . Sorry for the delay!
Changes in land ice mass measured by GRACE satellite in Antarctica and Greenland - frequent updates now available from GRACE-FO! 📉 Methods can be found from at . My graphic can also be downloaded at .
#Arctic sea ice extent is currently the 3rd lowest on record (JAXA data). • about 390,000 km² less the 2010s mean • about 740,000 km² less the 2000s mean • about 1,210,000 km² less the 1990s mean • about 1,720,000 km² less the 1980s mean More plots:
Total #Arctic sea ice extent is currently the 5th lowest on record (JAXA data). Compared to previous decades: • about 550,000 km² less the 2000s mean • about 1,150,000 km² less the 1990s mean • about 1,550,000 km² less the 1980s mean Additional plots:
Evolution of December #Arctic sea ice volume during the last 41 years (2019 was the 3rd lowest). Stay tuned for more graphics/analysis this week on the state of sea ice in 2019. + Download graphic: + Data information:
Checking in with #seaice... both the #Arctic and #Antarctic are more than 1 million km^2 below average [daily extent data] [Graphics: ]
Total #Arctic sea ice extent is currently the 5th lowest on record (JAXA data) Compared to previous decades: • about 620,000 km² less the 2000s mean • about 1,200,000 km² less the 1990s mean • about 1,600,000 km² less the 1980s mean Additional plots:
Both #Arctic and #Antarctic sea ice extents have remained below average all year. Their combined departure is nearly 2 million km² + Graph: + Data:
#Arctic sea ice extent is currently the 3rd lowest on record (JAXA data). • about 290,000 km² less the 2010s mean • about 830,000 km² less the 2000s mean • about 1,320,000 km² less the 1990s mean • about 1,720,000 km² less the 1980s mean More plots:
Total #Arctic sea ice extent is currently the 6th lowest on record (JAXA data) Compared to previous decades: • about 430,000 km² less the 2000s mean • about 990,000 km² less the 1990s mean • about 1,330,000 km² less the 1980s mean Additional plots:
Evolution of July's #Arctic sea ice volume during the last 41 years (2019 is the lowest)... + Download graphic: + Data information:
Daily #Arctic sea ice (left) and its normalized extent (right) now updated through all of 2018. What trends do you see? Graphics available at . Data from the consistent passive microwave satellite record.
Evolution of January #Arctic sea ice volume during the last 42 years (2020 is the 5th lowest)... + Download graphic: + Data information:
Daily #Arctic sea ice extent (left) and its normalized anomalies (right) now updated through all of 2019. What trends do you see? Graphics available at .
Mosaic of daily #Arctic sea ice extent anomalies over the satellite-era... + Additional visuals:
Variability and long-term decline in September #Arctic sea ice thickness (upper) & volume (lower). ---> September 2019 was the 2nd lowest Arctic sea ice volume on record. + Data available from + Other visuals:
Daily #Arctic sea ice extents - look for different temporal patterns... Figure: Data:
#Arctic sea ice extent is currently the 14th lowest on record (JAXA data). • about 390,000 km² above the 2010s mean • about 270,000 km² less the 2000s mean • about 850,000 km² less the 1990s mean • about 1,220,000 km² less the 1980s mean More plots: