Zack Labe

Climate Scientist (Atmospheric) at NOAA GFDL | PhD | UC Irvine and Cornell University alum | Sharing data-driven stories | Be kind | Views and thoughts expressed are mine own |

My research and communication interests coincide with disentangling patterns of climate change from climate variability using data-driven methods. Also, scary movie fan!

#Arctic #ClimateChange #DataViz #MachineLearning #OpenScience #Python #SciComm #Weather #wxMastodon #wxTwitter

My Research: https://zacklabe.com/
My Climate Change Visualizations: https://zacklabe.com/arctic-sea-ice-figures/
Twitter: https://twitter.com/ZLabe
Pronouns: He/Him/His

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2024-07-10T08:30:15+02:00

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Last Notes

2024-08-06 23:20:43

Carbon dioxide (CO₂) averaged 425.5 ppm in July 2024
10 years ago July averaged about 399 ppm
Preliminary data: https://gml.noaa.gov/ccgg/trends/
https://fediscience.org/system/media_attachments/files/112/917/167/208/867/464/original/c976a199ac71a474.png

2024-07-31 13:39:01

My end of the month reminder showing some of the latest climate change indicators...
Graphic from https://zacklabe.com/climate-change-indicators/
https://fediscience.org/system/media_attachments/files/112/880/906/151/597/512/original/988049fac691fb87.png

2024-07-31 02:22:41

One region of the #Antarctic that is observing particularly slow ice growth (currently a record low for late July) is around the Indian Ocean sector...
Find a map here of the #Antarctic regions at https://nsidc.org/arcticseaicenews/map-of-antarctica/
https://fediscience.org/system/media_attachments/files/112/878/245/884/366/137/original/26bea7dd1f32f535.png

2024-07-30 18:56:12

Trends in July #Arctic sea ice concentration are more extensive and begin to surround the central Arctic, including areas like the Beaufort, Chukchi, East Siberian, Laptev, Kara, Barents Seas
[Sea ice concentration = fraction of ice-cover. More info: https://doi.org/10.1175/BAMS-D-23-0079.1]
https://fediscience.org/system/media_attachments/files/112/876/491/108/462/221/original/74951cc1bfa7d7d3.png

2024-07-30 13:48:34

Effectively the entire #Arctic Ocean has observed thinning sea ice over the last 4 decades during the month of July (especially in the East Siberian Sea)...
[Data simulated by PIOMAS at http://psc.apl.uw.edu/research/projects/arctic-sea-ice-volume-anomaly/data/model_grid. For more information: https://doi.org/10.1175/JCLI-D-17-0436.1]
https://fediscience.org/system/media_attachments/files/112/875/281/389/922/499/original/0e7b4824cdf23341.png

2024-07-30 02:44:40

Due to anomalous conditions ongoing in the #Arctic and #Antarctic, the total extent of sea ice globally is a record low for the date and nearly *4 million square kilometers* below the 1981-2010 average...
More graphics: https://zacklabe.com/global-sea-ice-extent-conc/
https://fediscience.org/system/media_attachments/files/112/872/670/726/538/242/original/b4ba574bc213a686.png

2024-07-30 01:07:43

Have a great week! Here's your Monday ice update - #Arctic sea ice extent is currently the 4th lowest on record (JAXA data)...
• about 360,000 km² below the 2010s mean
• about 1,250,000 km² below the 2000s mean
• about 2,040,000 km² below the 1990s mean
• about 2,850,000 km² below the 1980s mean
Additional plots: https://zacklabe.com/arctic-sea-ice-figures/
https://fediscience.org/system/media_attachments/files/112/872/289/422/084/885/original/38757afc8b49af9b.png

2024-07-29 13:49:59

Reconstructing June #Arctic sea ice extent since 1850...
Find out more about this data is assembled by reading: https://carbonbrief.org/guest-post-piecing-together-arctic-sea-ice-history-1850
https://fediscience.org/system/media_attachments/files/112/869/624/720/585/980/original/6ede1aab575f207e.png

2024-07-29 04:10:12

June sea surface temperature anomalies over the last 100 years through 2024...
Data from ERSSTv5 at https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html
https://fediscience.org/system/media_attachments/files/112/867/344/715/031/871/original/1d1ec9884158dde4.mp4

2024-07-28 21:43:21

Average June #Arctic sea ice volume since the year 1901... Comparison between PIOMAS-20C and PIOMAS datasets available at https://doi.org/10.1175/JCLI-D-19-0008.1
This graphic can be downloaded at https://zacklabe.com/arctic-sea-ice-volumethickness/
https://fediscience.org/system/media_attachments/files/112/865/823/456/275/162/original/6a298b8e05649363.png

2024-07-28 15:10:09

Last month observed highly anomalous air temperatures around Antarctica but it varied widely by region...
Data from https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels-monthly-means?tab=overview
https://fediscience.org/system/media_attachments/files/112/864/277/369/617/488/original/625be513b5fc6b30.png

2024-07-28 03:23:43

A look at the absurd outliers for #Antarctic sea ice this year and last year... 😳
Full seasonal cycle graphs available at https://zacklabe.com/antarctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/861/499/535/845/770/original/31b61240fa8e8df6.png

2024-07-27 19:12:50

Simulated reconstruction of July #Arctic sea ice thickness since 1901. Watch for the last 10 years or so...
Information about this data set is available at http://psc.apl.uw.edu/research/projects/piomas-20c/. Note that it is only updated through 2010 due to ERA-20C forcing.
https://fediscience.org/system/media_attachments/files/112/859/569/252/302/109/original/9c7b3e13dbc94358.mp4

2024-07-27 15:02:58

Despite El Niño fading, the mean global sea surface temperature averaged over the last three months was the highest on record relative to any other April to June period...
Data from NOAA ERSSTv5: https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html
https://fediscience.org/system/media_attachments/files/112/858/586/900/762/272/original/9a107b6a16062f71.png

2024-07-27 02:49:57

Due to anomalously low sea ice in both poles, global sea ice extent levels are now at a record low for this time of year...
More sea ice graphics available at https://zacklabe.com/global-sea-ice-extent-conc/
https://fediscience.org/system/media_attachments/files/112/855/704/543/483/879/original/c79c0968d63430fb.png

2024-07-26 15:22:29

Friday ice update - #Arctic sea ice extent is currently the 3rd lowest on record (JAXA data)
• about 370,000 km² below the 2010s mean
• about 1,260,000 km² below the 2000s mean
• about 2,080,000 km² below the 1990s mean
• about 2,840,000 km² below the 1980s mean
Plots: https://zacklabe.com/arctic-sea-ice-figures/
https://fediscience.org/system/media_attachments/files/112/853/001/370/046/258/original/9b0ef68ae9796f7a.png

2024-07-26 01:57:37

Evolution of June #Arctic sea ice and sea surface temperature (SST) anomalies during the satellite-era...
A summary of last month can be found from the NSIDC at https://nsidc.org/arcticseaicenews/2024/07/arctic-ice-thinner-near-canada-thicker-elsewhere/
*SST data set (OISSTv2.1) is only available since about 1982
https://fediscience.org/system/media_attachments/files/112/849/836/336/588/394/original/d298bc7565ea2a2b.mp4

2024-07-25 14:02:43

A record hot June - red shading shows warmer than average temperatures...
The average global air temperature was:
+1.21°C above 1951-1980 baseline
+1.38°C above 1921-1950 baseline
+1.50°C above 1880-1920 baseline
Data source code: https://data.giss.nasa.gov/gistemp/sources_v4/
https://fediscience.org/system/media_attachments/files/112/847/025/470/256/584/original/a6fe183c5149e017.png

2024-07-24 13:55:13

Last month clearly observed record-breaking high temperatures in the Northern Hemisphere for the month of June...
[(Preliminary) data/info: https://data.giss.nasa.gov/gistemp/faq/]
https://fediscience.org/system/media_attachments/files/112/841/333/667/344/657/original/112c269de3d21a83.png

2024-07-22 21:21:51

Have a good week! Here's your Monday ice update - #Arctic sea ice extent is currently the 5th lowest on record (JAXA data)...
• about 150,000 km² below the 2010s mean
• about 1,060,000 km² below the 2000s mean
• about 1,850,000 km² below the 1990s mean
• about 2,630,000 km² below the 1980s mean
Plots: https://zacklabe.com/arctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/831/765/270/923/179/original/0705ea09fbad8ed3.png

2024-07-22 13:32:04

ICYMI - the latest monthly observations of greenhouse gases...
For more data/info: https://gml.noaa.gov/ccgg/
https://fediscience.org/system/media_attachments/files/112/829/918/029/677/621/original/e6fa2bc3cf378786.png

2024-07-21 15:17:34

Aside from around parts of the Southern Ocean region, most all temperatures averaged across each latitude band were significantly warmer than the 1951-1980 average.
[Plot shows zonal-mean surface temperature anomalies, with latitude = y-axis (not scaled by distance). GISTEMPv4.]
https://fediscience.org/system/media_attachments/files/112/824/670/487/145/788/original/15a98bea7da79169.png

2024-07-20 22:02:04

100 years of average January-June temperature anomalies over land areas through 2024...
[Data from GISTEMPv4; some missing data prior to ~1960, especially over the Antarctic and Southern Ocean]
https://fediscience.org/system/media_attachments/files/112/820/598/803/863/547/original/36dbfade33b1ae2b.mp4

2024-07-20 15:48:02

Differences in the spatial patterns of July temperature anomalies in the #Arctic versus #Antarctic by decadal means...
[Data from @npub13av…8hhw ERA5 reanalysis]
https://fediscience.org/system/media_attachments/files/112/819/126/903/776/044/original/433b2258918d0e62.png
https://fediscience.org/system/media_attachments/files/112/819/127/509/121/263/original/f141b3f75fd1d3c2.png

2024-07-19 14:03:11

Looking back at temperatures over the last 3 months - find your location...
🟥 [red] warmer than average
🟦 [blue] colder than average
Data information at https://data.giss.nasa.gov/gistemp/faq/
https://fediscience.org/system/media_attachments/files/112/813/053/390/331/785/original/4647aef080935f5d.png

2024-07-18 14:02:09

Both poles are now observing unusually low sea ice conditions, and therefore global sea ice extent is yet again near record low levels for the current date...
More sea ice graphics available at https://zacklabe.com/global-sea-ice-extent-conc/
https://fediscience.org/system/media_attachments/files/112/807/387/061/630/087/original/49dd699f29949748.png

2024-07-18 01:42:42

Global mean sea surface temperature anomalies (departure from average) so far this year ➡️ warmest on record
[Data from NOAA ERSSTv5 averaged over January to June]
https://fediscience.org/system/media_attachments/files/112/804/479/004/477/584/original/b9657b08808802d8.png

2024-07-17 14:09:13

It's another historic year in the #Antarctic. With ice growth remaining slow (austral winter), the magnitude of the Antarctic sea ice departure is almost as anomalous as last year's record. Wow.
Full seasonal cycle graphs available at https://zacklabe.com/antarctic-sea-ice-extentconcentration/.
https://fediscience.org/system/media_attachments/files/112/801/752/656/142/506/original/caeee54eebaa8176.png

2024-07-16 14:30:35

Methane (CH₄) is a potent greenhouse gas. Here are the newest monthly observations...
March 2024 - 1930.75 ppb
March 2023 - 1919.70 ppb
+ Data: https://gml.noaa.gov/ccgg/trends_ch4/
+ More info on recent trends: https://pnas.org/doi/abs/10.1073/pnas.1814297116
https://fediscience.org/system/media_attachments/files/112/796/173/981/145/703/original/5c4853a05f3db2e7.png

2024-07-15 15:27:43

Have a good week ahead! Here's your Monday ice update - #Arctic sea ice extent is currently the 8th lowest on record (JAXA data)...
• about 30,000 km² below the 2010s mean
• about 970,000 km² below the 2000s mean
• about 1,720,000 km² below the 1990s mean
• about 2,510,000 km² below the 1980s mean
More plots: https://zacklabe.com/arctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/790/736/333/098/549/original/ef55a2c5be1ebeb1.png

2024-07-15 14:03:38

Over the last three months, the temperatures assessed across all latitude bands were warmer than the 1951-1980 average, except around the Southern Ocean/Antarctic.
[Plot shows zonal-mean surface temperature anomalies, with latitude = y-axis (not scaled by distance). GISTEMPv4.]
https://fediscience.org/system/media_attachments/files/112/790/405/657/178/195/original/1cc979891d1d783d.png

2024-07-14 19:23:56

YET AGAIN, last month was the hottest June on record globally...
[(Preliminary) data/info: https://data.giss.nasa.gov/gistemp/faq/]
https://fediscience.org/system/media_attachments/files/112/786/003/156/331/457/original/e68cc83b81d4190d.png

2024-07-13 16:00:36

Comparison of monthly temperature anomalies in the Arctic versus the Antarctic so far in 2024 (yellow lines). The other lines show the monthly anomalies for years from 1940 (blue) to 2023 (red).
Data from https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels-monthly-means?tab=overview
https://fediscience.org/system/media_attachments/files/112/779/540/731/739/209/original/652010b08ca233ad.png
https://fediscience.org/system/media_attachments/files/112/779/540/743/882/684/original/24647832a50acd8c.png

2024-07-12 13:26:06

A closer look at temperature anomalies last month in the Arctic. Anomalies well exceeded 5°C above the 1981-2010 average across parts of the Siberia coast.
Data from https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels-monthly-means?tab=overview
https://fediscience.org/system/media_attachments/files/112/773/271/265/279/750/original/ac5ed877542b4ecf.png

2024-07-12 01:03:50

Changes in July #Arctic sea ice thickness by decade... 👀
[Data simulated by PIOMAS]
https://fediscience.org/system/media_attachments/files/112/770/352/221/299/940/original/b467a502cdf361c5.png

2024-07-11 13:04:09

We are having a timely workshop on all aspects of extreme heat this week at Columbia University (https://climate.columbia.edu/extreme-heat-workshop) with a wide range of participants from across disciplines. I presented some of our recent work using GFDL's SPEAR model [poster link: https://zacklabe.com/wp-content/uploads/2024/07/zlabe_heatwaveworkshop_poster_2024_final.pdf]

2024-07-11 02:02:07

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 @npub13av…8hhw ERA5 reanalysis at https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels-monthly-means?tab=overview
https://fediscience.org/system/media_attachments/files/112/764/919/160/500/381/original/dbadb85fbed88251.png

2024-07-10 01:38:04

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 https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels-monthly-means?tab=overview
https://fediscience.org/system/media_attachments/files/112/759/161/626/115/979/original/0905581b5c220368.png
https://fediscience.org/system/media_attachments/files/112/759/161/633/445/279/original/d0a40eba178f8ab2.png

2024-07-09 14:02:04

Record warm sea surface temperatures continued last month in the northern half of the Atlantic Ocean...
Data available from NOAA ERSSTv5: https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html
https://fediscience.org/system/media_attachments/files/112/756/425/399/256/952/original/1c1986be526af7f4.png

2024-07-09 00:15:50

Have a good week! Here's your 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: https://zacklabe.com/arctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/753/176/967/591/623/original/5652175cb60488ee.png

2024-07-08 14:12:03

🚨 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 from @npub13av…8hhw: https://climate.copernicus.eu/surface-air-temperature-june-2024
https://fediscience.org/system/media_attachments/files/112/750/801/954/539/280/original/ef854d4f1d9d05b6.png
https://fediscience.org/system/media_attachments/files/112/750/802/246/182/313/original/d7fcbdf6fdc63014.png

2024-07-07 20:58:32

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

2024-07-06 14:46:40

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: https://nsidc.org/data/g02202/versions/4. Concentration = fraction of sea ice in a location.
https://fediscience.org/system/media_attachments/files/112/739/614/287/089/731/original/246bdef21e6ff5c3.png

2024-07-05 20:23:36

Yet another tick upward for the 12-month running mean global temperature (updated through June 2024)...
Graphic from https://zacklabe.com/climate-change-indicators/
https://fediscience.org/system/media_attachments/files/112/735/276/649/908/437/original/f3be4ca29ed45843.png

2024-07-05 15:51:25

Enjoy your weekend! Here's your 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
Other plots: https://zacklabe.com/arctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/734/206/024/444/300/original/2e1200a796f00b0b.png

2024-07-05 14:40:18

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: https://repository.library.noaa.gov/view/noaa/56617
https://fediscience.org/system/media_attachments/files/112/733/927/048/576/466/original/7bcb26571d3961cd.png

2024-07-04 15:32:21

#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: https://zacklabe.com/arctic-temperatures/
https://fediscience.org/system/media_attachments/files/112/728/469/305/851/245/original/63a9f70fcd821b7c.png

2024-07-03 13:23:42

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 https://nsidc.org/data/seaice_index
https://fediscience.org/system/media_attachments/files/112/722/301/128/811/517/original/5ccb25c213ebf78c.png

2024-07-03 02:55:03

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: https://nsidc.org/data/seaice_index
https://fediscience.org/system/media_attachments/files/112/719/828/454/518/065/original/32240303cd0501ed.png

2024-07-01 14:17:31

100 years of changing July sea ice...
Total data set available from 1850 through 2017. Summary of methods: https://carbonbrief.org/guest-post-piecing-together-arctic-sea-ice-history-1850
https://fediscience.org/system/media_attachments/files/112/711/188/210/462/576/original/ef25847847c43370.mp4

2024-07-01 01:21:38

While not quite as anomalous as 2023, #Antarctic sea ice extent once again remains way below average for this time of year...
More graphs: https://zacklabe.com/antarctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/708/137/184/044/424/original/14aac735dd9a64e1.png

2024-06-30 15:10:32

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: https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html
https://fediscience.org/system/media_attachments/files/112/705/734/200/979/207/original/4cd80329dc101b4f.png

2024-06-29 21:37:53

May sea surface temperature anomalies over the last 100 years through 2024...
Data from ERSSTv5 at https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html
https://fediscience.org/system/media_attachments/files/112/701/594/349/335/314/original/37350d189242bbeb.mp4

2024-06-29 15:22:07

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: https://ice-glaces.ec.gc.ca/cgi-bin/getprod.pl?prodid=MODISCOM-T&wrap=1&lang=en&q=0
https://fediscience.org/system/media_attachments/files/112/700/117/602/776/108/original/7dfef2b11d4adbce.jpg

2024-06-28 20:10:17

Have a great weekend! Here's your 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
See more at https://zacklabe.com/arctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/695/587/153/914/752/original/feecb41ac0acd70b.png

2024-06-27 22:56:48

My climate change dashboard is updated again through May 2024...
Higher resolution graphic available at https://zacklabe.com/climate-change-indicators/
https://fediscience.org/system/media_attachments/files/112/690/580/672/098/687/original/6b7e5660d813af80.png

2024-06-27 13:11:36

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.]
https://fediscience.org/system/media_attachments/files/112/688/278/921/231/525/original/c8ebf3e85b707bcf.png

2024-06-27 00:57:23

Year-to-year variability with a long-term decline in May #Arctic sea ice volume (bar) and thickness (map). Updated through May 2024 🧊
+ Additional graphics: https://zacklabe.com/arctic-sea-ice-volumethickness/
https://fediscience.org/system/media_attachments/files/112/685/392/353/686/263/original/462fdcb3e7df2c5f.mp4

2024-06-26 13:33:22

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: https://zacklabe.com/arctic-sea-ice-figures/
+ Data: https://nsidc.org/data/seaice_index
https://fediscience.org/system/media_attachments/files/112/682/700/977/509/195/original/3cab34f4ba49ce80.png
https://fediscience.org/system/media_attachments/files/112/682/701/810/402/883/original/31fa4e99a8836eb8.png
https://fediscience.org/system/media_attachments/files/112/682/702/742/026/589/original/0043e59ab0132ed3.png

2024-06-24 23:32:34

May 2024 data is now available from GIOMAS for both Antarctic sea-ice thickness/volume (https://zacklabe.com/antarctic-sea-ice-extentconcentration/) and global sea-ice volume (https://zacklabe.com/global-sea-ice-extent-conc/).

2024-06-24 18:38:00

Have a great week! Here's your 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
More plots: https://zacklabe.com/arctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/672/576/384/607/657/original/a981626051860487.png

2024-06-24 14:21:10

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 https://data.giss.nasa.gov/gistemp/faq/
https://fediscience.org/system/media_attachments/files/112/671/566/332/538/799/original/291295d3fcb3e723.png

2024-06-24 00:34:54

100 years of average May temperature anomalies over land areas through 2024...
Data from https://data.giss.nasa.gov/gistemp/
https://fediscience.org/system/media_attachments/files/112/668/317/302/896/088/original/c878c2bee652234c.mp4

2024-06-23 14:29:41

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: https://repository.library.noaa.gov/view/noaa/56617]
https://fediscience.org/system/media_attachments/files/112/665/937/222/517/681/original/b458691f45b7b496.png

2024-06-21 14:10:51

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! https://showyourstripes.info #ShowYourStripes
https://fediscience.org/system/media_attachments/files/112/654/539/014/100/152/original/6d1743dabc675a11.png

2024-06-20 22:20:48

And now visualizing the June solstice from the polar regions...
Animation looks downward at the North Pole (left; ☀️) and South Pole (right; 🌙) over a 24-hour period. Graphic from https://zacklabe.com/arctic-climate-seasonality-and-variability/
https://fediscience.org/system/media_attachments/files/112/650/802/871/026/528/original/b72b4cb94e33e3c2.mp4

2024-06-20 17:31:53

Happy #JuneSolstice! Have a great day! 🙂
Understanding seasons - a look at the hourly incoming sunlight during the two solstices (23.5°N/S). I've added a red marker for ease of viewing. Graphic available at https://zacklabe.com/arctic-climate-seasonality-and-variability/.
https://fediscience.org/system/media_attachments/files/112/649/666/623/163/687/original/b39d588c9d5209ef.mp4

2024-06-20 13:19:19

The total area of #Arctic sea ice is declining in every month of the year. However, the largest losses of sea ice are observed during the late summer and early fall.
For more information: https://repository.library.noaa.gov/view/noaa/56616. Concentration means the fraction of ice cover.
https://fediscience.org/system/media_attachments/files/112/648/674/040/207/783/original/2f4060ad4257756f.png

2024-06-19 18:55:06

Now back to your regularly scheduled programming - There is a widespread positive trend for increasing precipitation across the #Arctic Ocean in June, which is largest near the North Pole & some coastal land regions
+ Data: https://psl.noaa.gov/data/gridded/data.gpcp.html
+ Info: https://repository.library.noaa.gov/view/noaa/56614
https://fediscience.org/system/media_attachments/files/112/644/331/793/972/600/original/af510e9669db1e53.png

2024-06-19 00:09:32

Well now I can finally share - I just started my first day as a federal scientist at NOAA's Geophysical Fluid Dynamics Laboratory.
I'll be continuing research on improving our understanding of climate prediction and projection, especially with data-driven approaches for high-impact extremes.

2024-06-18 01:59:15

Enjoy your week! Here's your Monday ice update - #Arctic sea ice extent is currently the 9th lowest on record (JAXA data)...
• about 200,000 km² below the 2010s mean
• about 690,000 km² below the 2000s mean
• about 1,230,000 km² below the 1990s mean
• about 1,700,000 km² below the 1980s mean
Additional plots: https://zacklabe.com/arctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/634/674/546/958/423/original/1de84e395856ede8.png

2024-06-17 13:06:23

Unsurprisingly, the last three months globally were the warmest March-May in our records...
[(Preliminary) data/info: https://data.giss.nasa.gov/gistemp/faq/]
https://fediscience.org/system/media_attachments/files/112/631/636/162/894/161/original/0fbf0c758a613efb.png

2024-06-16 22:46:33

Evolution of June #Arctic sea ice thickness by decade...
Data information: https://climatedataguide.ucar.edu/climate-data/pan-arctic-ice-ocean-modeling-and-assimilation-system-piomas
https://fediscience.org/system/media_attachments/files/112/628/254/707/443/783/original/e6f9b4fc44d6dcfd.png

2024-06-16 04:38:21

Like a broken record, another monthly record for the average sea surface temperature in the northern half of the Atlantic Ocean...
Data available from NOAA ERSSTv5 (https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html).
https://fediscience.org/system/media_attachments/files/112/623/976/018/067/477/original/9d54c8ed35cc32a6.png

2024-06-15 16:02:16

Some cooler sea surface temperature (SST) departures continue to linger in the Sea of Okhotsk and Bering Sea. However, a sharp gradient in SST anomalies is found around Scandinavia with the warmest areas to the south and in the Baltic Sea.
Data from https://psl.noaa.gov/data/gridded/data.noaa.oisst.v2.highres.html
https://fediscience.org/system/media_attachments/files/112/621/002/920/622/192/original/95d57f5314f20c30.png

2024-06-15 03:54:12

100 years of average January-May temperature anomalies over land areas through 2024... not great!!
[Data from GISTEMPv4; some missing data prior to ~1960, especially over the Antarctic and Southern Ocean]
https://fediscience.org/system/media_attachments/files/112/618/139/959/202/252/original/5ebe1a5db34db8d1.mp4

2024-06-14 22:03:48

Temperature anomalies over the last month (left), 3 months (center), and 12 months (right) in the Northern Hemisphere...
Data from @npub13av…8hhw ERA5 reanalysis at https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels-monthly-means?tab=overview
https://fediscience.org/system/media_attachments/files/112/616/762/412/414/853/original/25ec6a51486a2e3b.png

2024-06-14 14:00:05

The temperatures averaged across nearly all latitude bands were warmer than the 1951-1980 average in May 2024.
[Plot shows zonal-mean surface temperature anomalies, with latitude = y-axis (not scaled by distance). GISTEMPv4 data.]
https://fediscience.org/system/media_attachments/files/112/614/860/224/443/249/original/c5885f848e67a026.png

2024-06-13 13:33:49

Temperatures in May 2024...
🟥 - warmer than average
🟦 - colder than average
The average global air temperature was...
+1.14°C above 1951-1980 baseline
+1.27°C above 1921-1950 baseline
+1.42°C above 1880-1920 baseline
Data code/info: https://data.giss.nasa.gov/gistemp/sources_v4/
https://fediscience.org/system/media_attachments/files/112/609/094/327/388/771/original/4a139f8aa5c0b35a.png

2024-06-12 13:17:35

Looking for the status of greenhouse gas levels, here is the latest monthly data...
Monthly observations provided by: https://gml.noaa.gov/ccgg/. Compare this to the last 800,000 years: https://epa.gov/climate-indicators/climate-change-indicators-atmospheric-concentrations-greenhouse-gases.
https://fediscience.org/system/media_attachments/files/112/603/368/694/075/418/original/39132275d4a6f42f.png

2024-06-11 22:20:14

Last month was also the warmest May on record globally in the GISTEMPv4 dataset...
[(Preliminary) data/info: https://data.giss.nasa.gov/gistemp/faq/]
https://fediscience.org/system/media_attachments/files/112/599/840/051/172/761/original/407e3cd86ec41392.png

2024-06-10 18:25:12

Monday ice update - #Arctic sea ice extent is currently the 5th lowest on record (JAXA data)...
• about 170,000 km² below the 2010s mean
• about 800,000 km² below the 2000s mean
• about 1,320,000 km² below the 1990s mean
• about 1,740,000 km² below the 1980s mean
Plots: https://zacklabe.com/arctic-sea-ice-figures/
https://fediscience.org/system/media_attachments/files/112/593/253/299/735/110/original/cadeec5baa3037f4.png

2024-06-10 13:17:07

Last month was the warmest May on record for the average sea surface temperature globally...
Graphic using NOAA ERSSTv5 data (https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html). Methods detailed in https://doi.org/10.1175/JCLI-D-16-0836.1.
https://fediscience.org/system/media_attachments/files/112/592/042/055/096/156/original/198e91cf16b7ccfc.png

2024-06-09 20:50:15

Methane (CH₄) is a potent greenhouse gas. Here are the most recent monthly observations...
February 2024 - 1928.96 ppb
February 2023 - 1920.26 ppb
+ Data: https://gml.noaa.gov/ccgg/trends_ch4/
+ More info on trends: https://pnas.org/doi/abs/10.1073/pnas.1814297116
https://fediscience.org/system/media_attachments/files/112/588/161/425/741/389/original/c57ba5d19ca91734.png

2024-06-08 22:26:20

#Antarctic sea ice extent has recently dropped to the 2nd lowest on record for the date in response to a slowdown in the rate of the sea ice freeze-up (austral winter).
More graphs: https://zacklabe.com/antarctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/582/876/929/365/809/original/1746b91df4e25f68.png

2024-06-08 19:00:06

Changes in June temperatures in the #Arctic by decade... The strong warming over Siberia is directly linked to land-atmosphere processes from long-term loss of snow cover.
[Data from @npub13av…8hhw ERA5 reanalysis]
https://fediscience.org/system/media_attachments/files/112/582/066/315/097/602/original/084d87be50076447.png

2024-06-08 14:05:47

Although not as extreme as some recent years, snow cover remained below average over the Northern Hemisphere in May 2024. This was especially found across North America
Boreal spring observes the largest decreasing trend in snow cover. Graphic/data from https://climate.rutgers.edu/snowcover/index.php
https://fediscience.org/system/media_attachments/files/112/580/908/600/841/999/original/366737ac86cb6343.png

2024-06-07 21:16:09

🚨 Sea ice across the Hudson Bay (Canada) is observing a historic spring with record early losses of #Arctic sea ice...
Each line represents one year from 1979 (purple) to 2023 (white). 2024 is in red. Data from the NSIDC using the passive microwave satellite record.
https://fediscience.org/system/media_attachments/files/112/576/938/896/835/632/original/8a48b5864f5e1ba7.png

2024-06-07 20:14:10

Have a great weekend! Here's your Friday ice update - #Arctic sea ice extent is currently the 6th lowest on record (JAXA data)...
• about 30,000 km² below the 2010s mean
• about 630,000 km² below the 2000s mean
• about 1,150,000 km² below the 1990s mean
• about 1,550,000 km² below the 1980s mean
More plots: https://zacklabe.com/arctic-sea-ice-extentconcentration/
https://fediscience.org/system/media_attachments/files/112/576/694/204/191/972/original/33bb2fd46b88dac5.png

2024-06-07 18:21:37

My monthly #Arctic temperature graphics have just been updated for May 2024, which was another pretty uneventful month across the region: https://zacklabe.com/arctic-temperatures/
#DataViz #SciComm #OpenScience #OpenData

2024-06-07 14:09:32

Some of the largest temperature anomalies in the #Arctic last month were observed in northern Canada with departures up to 8°C above the 1981-2010 mean baseline. Cooler conditions were found in Greenland however.
Data from @npub13av…8hhw ERA5 reanalysis.
https://fediscience.org/system/media_attachments/files/112/575/261/288/820/690/original/b377abf34d1d6a1e.png

2024-06-06 21:55:32

🚨 Carbon dioxide (CO₂) levels set a new *record high* in May 2024 - 426.90 ppm (seasonal max)
"Carbon dioxide is accumulating in the atmosphere faster than ever..."
+ NOAA Press Release: https://noaa.gov/news-release/during-year-of-extremes-carbon-dioxide-levels-surge-faster-than-ever
https://fediscience.org/system/media_attachments/files/112/571/430/896/175/456/original/de2e8b6918d5ec08.png

2024-06-06 13:52:24

12 consecutive months of record breaking warmth around the world. Yikes...
The latest data and info on May's climate summary from ECMWF ERA5 data: https://climate.copernicus.eu/surface-air-temperature-may-2024
https://fediscience.org/system/media_attachments/files/112/569/530/662/631/086/original/f8a52d23691c0c4d.png
https://fediscience.org/system/media_attachments/files/112/569/530/661/955/280/original/6b4098dba16b8b06.png

2024-06-05 13:28:56

The 12-month running mean global temperature anomaly is still rising (updated with data now through May 2024)...
Graphic from https://zacklabe.com/climate-change-indicators/
https://fediscience.org/system/media_attachments/files/112/563/774/995/891/734/original/55df0509fddbde36.png

2024-06-04 13:16:27

#Arctic air temperature rank by month over the satellite era - now updated through May 2024. Another mostly quiet month.
+ Ranks: 1=warmest (red), 45/46=coldest (blue)
+ Download visual: https://zacklabe.com/arctic-temperatures/
https://fediscience.org/system/media_attachments/files/112/558/065/611/405/429/original/916f1820db5a8528.png

2024-06-03 15:03:42

Both poles (#Arctic and #Antarctic) are still observing sea ice extent below the 1981-2010 average. Note that JAXA data is unavailable until the end of the week - I'll update my graphs then.
More visuals: https://zacklabe.com/arctic-sea-ice-figures/. Data below from https://nsidc.org/data/seaice_index
https://fediscience.org/system/media_attachments/files/112/552/824/474/840/492/original/541f1ea38b80cdd9.png
https://fediscience.org/system/media_attachments/files/112/552/824/491/515/383/original/d28d397e29e26157.png

2024-06-03 01:17:17

Last month averaged the 5th lowest #Antarctic sea ice extent on record for the month of May.
This was 890,000 km² below the 1981-2010 average. Data from NSIDC at https://nsidc.org/data/seaice_index
https://fediscience.org/system/media_attachments/files/112/549/574/741/635/806/original/6014d36577eea207.png

2024-06-02 16:44:15

May 2024 #Arctic sea ice extent was statistically tied for the 12th lowest on record...
This was 510,000 km² below the 1981-2010 average. May ice extent is decreasing at about 2.34% per decade. Data: https://nsidc.org/data/seaice_index
https://fediscience.org/system/media_attachments/files/112/547/557/764/162/690/original/c8668707ff6fbd54.png

2024-06-02 15:23:06

A lot of regional variability last month in terms of the pattern of #Arctic sea ice concentration anomalies. There is early melting in the eastern Hudson Bay, but a slow start toward Siberia.
Data from https://nsidc.org/data/g02202/versions/4. Concentration = fraction of sea ice in a location.
https://fediscience.org/system/media_attachments/files/112/547/238/882/284/773/original/13a890ff9ab9b543.png

2024-06-01 17:53:06

Global temperature anomalies by month through April 2024. Every month so far this year has been >1.20°C above the 1951-1980 climate baseline.
Note: M = sunspot cycle max, m = sunspot cycle min, V = volcano
[Data from NASA/GISS GISTEMPv4. Visualization prepared by http://columbia.edu/~mhs119/Temperature/T_moreFigs/]
https://fediscience.org/system/media_attachments/files/112/542/166/391/710/067/original/0555aae03f11a1dc.png