Zack Labe

Zack Labe @zlabe.bsky.social [ View ] Jul 11, 2024 at 00:02 UTC

Temperature anomalies over the last month (left), 3 months (center), and 12 months (right) across the Northern Hemisphere. The largest anomaly (by magnitude) was along the Arctic Ocean coast in Siberia.

Data from @copernicusecmwf.bsky.social ERA5 reanalysis cds.climate.copernicus.eu/cdsapp#!/dat...

1 replies 7 reposts 10 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 09, 2024 at 23:38 UTC

Looking at the different seasonality and trends in the magnitude of monthly temperature anomalies since 1940 for the Northern Hemisphere and Southern Hemisphere. 2024 is a historically warm year.

Data from cds.climate.copernicus.eu/cdsapp#!/dat...

1 replies 9 reposts 20 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 09, 2024 at 12:02 UTC

Record warm sea surface temperatures continued last month in the northern half of the Atlantic Ocean...

Data available from NOAA ERSSTv5: psl.noaa.gov/data/gridded...

0 replies 17 reposts 24 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 08, 2024 at 22:15 UTC

Monday ice update - #Arctic sea ice extent is currently the 12th lowest on record (JAXA data)

• about 170,000 km² above the 2010s mean
• about 660,000 km² below the 2000s mean
• about 1,400,000 km² below the 1990s mean
• about 2,140,000 km² below the 1980s mean

Plots: zacklabe.com/arctic-sea-i...

1 replies 8 reposts 12 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 08, 2024 at 12:12 UTC

🚨 Once again, last month's global temperature set a new record high. This time for the month of June. Of course, this is contributing to the unusually warm summer temperatures in the Northern Hemisphere too.

Summary of June data: @copernicusecmwf.bsky.social: climate.copernicus.eu/surface-air-...

0 replies 12 reposts 19 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 07, 2024 at 18:58 UTC

My monthly #Arctic temperature graphics have been updated for June 2024. No new records. See: zacklabe.com/arctic-tempe... #DataViz #SciComm #OpenScience #OpenData

0 replies 5 reposts 11 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 07, 2024 at 13:44 UTC

Last month continued to see below average sea surface temperatures in the Sea of Okhotsk and Bering Sea. Areas where the sea ice melted unusually early in the Hudson Bay therefore reflected the warm patch in the anomaly map.

Data from psl.noaa.gov/data/gridded...

0 replies 7 reposts 12 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 06, 2024 at 12:47 UTC

The quiet melt season continues in the #Arctic with large regional variability in the spatial pattern of sea-ice concentration. This is partially due to some (relative) thicker ice toward Siberia.

Data: nsidc.org/data/g02202/.... Concentration = fraction of sea ice in a location.

1 replies 2 reposts 10 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 05, 2024 at 18:24 UTC

Yet another tick upward for the 12-month running mean global temperature (updated through June 2024)...

Graphic from zacklabe.com/climate-chan...

1 replies 47 reposts 64 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 05, 2024 at 13:51 UTC

Friday ice update - #Arctic sea ice extent is currently the 13th lowest on record (JAXA data)

• about 180,000 km² above the 2010s mean
• about 620,000 km² below the 2000s mean
• about 1,370,000 km² below the 1990s mean
• about 2,050,000 km² below the 1980s mean

Plots: zacklabe.com/arctic-sea-i...

0 replies 8 reposts 17 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 05, 2024 at 12:40 UTC

Sea surface temperatures are substantially warming around the entire #Arctic Ocean in July during the satellite-era. This is especially large in the Kara Sea. Note the blue shading mostly corresponds to areas of sea ice.

Data by OISSTv2.1. For more info: repository.library.noaa.gov/view/noaa/56...

1 replies 12 reposts 21 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 04, 2024 at 13:32 UTC

#Arctic air temperature rank by month over the satellite era - now updated through June 2024, which was unusually warm

+ Ranks: 1=warmest (red), 45/46=coldest (blue)
+ Download visual: zacklabe.com/arctic-tempe...

0 replies 12 reposts 25 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 03, 2024 at 11:24 UTC

Last month averaged the 2nd lowest #Antarctic sea ice extent on record for the month of June

This was 1,590,000 km² below the 1981-2010 June average. Data from NSIDC at nsidc.org/data/seaice_...

0 replies 9 reposts 17 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 03, 2024 at 00:55 UTC

June 2024 #Arctic sea ice extent was the 12th lowest on record...

This was 860,000 km² below the 1981-2010 average. June ice extent is decreasing at about 3.67% per decade. Data: nsidc.org/data/seaice_...

0 replies 7 reposts 12 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 02, 2024 at 11:41 UTC

Last month observed substantial departures in #Antarctic sea ice, which were particularly focused around the Indian Ocean sector and near the Ross/Amundsen Seas. This is a different spatial pattern compared to last year.

Data available from nsidc.org/data/g02202/...

3 replies 10 reposts 18 likes

Zack Labe @zlabe.bsky.social [ View ] Jul 01, 2024 at 21:55 UTC

Monday ice update - #Arctic sea ice extent is currently the 12th lowest on record (JAXA data)

• about 160,000 km² above the 2010s mean
• about 590,000 km² below the 2000s mean
• about 1,280,000 km² below the 1990s mean
• about 1,940,000 km² below the 1980s mean

Plots: zacklabe.com/arctic-sea-i...

0 replies 10 reposts 23 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 30, 2024 at 23:22 UTC

While not quite as anomalous as 2023, #Antarctic sea ice extent once again remains way below average for this time of year...

More graphs: zacklabe.com/antarctic-se...

0 replies 13 reposts 31 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 30, 2024 at 13:11 UTC

The mean global sea surface temperature averaged over the last three months was the highest on record relative to any other March to May period...

Data from NOAA ERSSTv5: psl.noaa.gov/data/gridded...

1 replies 22 reposts 35 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 29, 2024 at 19:39 UTC

Map of the widespread coverage of anomalously warm sea surface temperatures globally in May 2024...

Data from ERSSTv5 at psl.noaa.gov/data/gridded...

0 replies 20 reposts 29 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 29, 2024 at 13:22 UTC

Latest 'cloud-free' mosaic from MODIS satellite imagery showing that most of the snow cover across land areas of the #Arctic has melted for the season. There are also signs that sea ice is beginning to retreat along coastal regions too.

Imagery from: ice-glaces.ec.gc.ca/cgi-bin/getp...

0 replies 6 reposts 19 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 28, 2024 at 19:06 UTC

The first September 2024 outlook from the Sea Ice Prediction Network suggests yet again that #Arctic sea ice is unlikely to break a record low this summer.

Read the full report at arcus.org/sipn/sea-ice...

0 replies 2 reposts 11 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 28, 2024 at 18:11 UTC

Friday ice update - #Arctic sea ice extent is currently the 12th lowest on record (JAXA data)

• about 100,000 km² above the 2010s mean
• about 610,000 km² below the 2000s mean
• about 1,240,000 km² below the 1990s mean
• about 1,880,000 km² below the 1980s mean

Plots: zacklabe.com/arctic-sea-i...

0 replies 7 reposts 16 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 28, 2024 at 11:21 UTC

46 years of #Arctic sea ice thickness during the month of May...

Graphic available at zacklabe.com/arctic-sea-i...

4 replies 5 reposts 16 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 27, 2024 at 20:57 UTC

My climate change dashboard is updated again through May 2024...

Higher resolution graphic available at zacklabe.com/climate-chan...

1 replies 14 reposts 34 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 27, 2024 at 11:12 UTC

Aside from around the Southern Ocean/Antarctic, most all latitude bands observed temperatures above the 1951-1980 reference period for March through May 2024. [Plot shows zonal-mean surface temperature anomalies, with latitude = y-axis (not scaled by distance). GISTEMPv4 data.]

0 replies 7 reposts 14 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 27, 2024 at 01:38 UTC

Average May #Arctic sea ice volume since the year 1901...

Comparison between PIOMAS-20C and PIOMAS datasets available at doi.org/10.1175/JCLI.... This graphic can be downloaded at zacklabe.com/arctic-sea-i....

0 replies 3 reposts 10 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 26, 2024 at 11:34 UTC

Mosaics of daily #Arctic sea ice extent, its anomalies, and its normalized anomalies from 1979 through 2023. What trends do you see?

+ Download high resolution versions: zacklabe.com/arctic-sea-i...
+ Data: nsidc.org/data/seaice_...

1 replies 6 reposts 13 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 25, 2024 at 11:25 UTC

Trend in June temperatures across the #Arctic...
The largest warming has been observed in the Siberian Arctic. Temperature anomalies/trends are smaller over sea ice in summer due to melting-thermodynamic processes.

Data: @copernicusecmwf.bsky.social ERA5. More info: doi.org/10.1175/BAMS...

0 replies 8 reposts 15 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 24, 2024 at 21:32 UTC

May 2024 data is now available from GIOMAS for both Antarctic sea-ice thickness/volume (zacklabe.com/antarctic-se...) and global sea-ice volume (zacklabe.com/global-sea-i...).

0 replies 3 reposts 8 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 24, 2024 at 21:31 UTC

That is a feature that is more visible in long-term trend plots (e.g., over 30 years), but not always in the monthly/interannual variability of surface temperature anomalies due to the regional influence of weather.

1 replies 0 reposts 2 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 24, 2024 at 16:38 UTC

Monday ice update - #Arctic sea ice extent is currently the 10th lowest on record (JAXA data)

• about 80,000 km² above the 2010s mean
• about 590,000 km² below the 2000s mean
• about 1,180,000 km² below the 1990s mean
• about 1,750,000 km² below the 1980s mean

Plots: zacklabe.com/arctic-sea-i...

1 replies 10 reposts 10 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 24, 2024 at 12:21 UTC

Revisiting the regional departures around the world during the record warm global mean temperature from the last 3 months...

🟥 warmer than average
🟦 colder than average

Data information/questions addressed at data.giss.nasa.gov/gistemp/faq/

1 replies 15 reposts 25 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 24, 2024 at 00:21 UTC

A longer perspective for May #Arctic sea ice extent (since 1850)...

You can read more about this reconstruction at carbonbrief.org/guest-post-p...

0 replies 6 reposts 21 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 23, 2024 at 12:30 UTC

Sea surface temperatures are warming across the periphery of the #Arctic Ocean in June during the satellite-era. This is evident in both the north Pacific and north Atlantic.

Data from OISSTv2.1. For more info: repository.library.noaa.gov/view/noaa/56...

0 replies 8 reposts 11 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 22, 2024 at 13:15 UTC

Trends in June sea ice concentration are still mostly confined to coastal areas of the #Arctic Ocean. The largest declines are found in the Barents Sea this time of year.

Sea ice concentration = fraction of ice-cover (observed by satellite). Info: doi.org/10.1175/BAMS...

0 replies 9 reposts 15 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 21, 2024 at 20:25 UTC

#Arctic sea ice extent is currently the 10th lowest on record (JAXA data)

• about 60,000 km² above the 2010s mean
• about 590,000 km² below the 2000s mean
• about 1,160,000 km² below the 1990s mean
• about 1,680,000 km² below the 1980s mean

Plots: zacklabe.com/arctic-sea-i...

1 replies 7 reposts 19 likes

Zack Labe @zlabe.bsky.social [ View ] Jun 21, 2024 at 12:11 UTC

Located within the #Arctic, Svalbard is one of the fastest warming regions of the world in response to climate change.

➡️ Explore your own climate change stripes! showyourstripes.info #ShowYourStripes

0 replies 14 reposts 39 likes