ZLabe

ZLabe, 2 months ago to worldwithoutus

Evolution of February #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/2024/03/leaping-toward-spring/

*SST data set (OISSTv2.1) is only available since about 1982

Animation of polar stereographic maps showing Arctic sea ice concentration and sea surface temperature anomalies for every February from 1982 to 2024. Blue shading is shown for colder anomalies, and red shading is shown for warmer anomalies. Sea ice concentration is shown with shades of white and grey. There is large spatial variability, but long-term warming sea surface temperatures and decreasing sea ice. A gold line for the 1982-2010 sea ice extent median is also shown.

ZLabe, 2 months ago to random

There were extremely large temperature anomalies in the highest latitudes of the Arctic in February 2024...

[Plot shows zonal-mean surface air temperature anomalies, where latitude = y-axis (not scaled by distance). Data: GISTEMPv4 using a 1951-1980 baseline]

ZLabe, 2 months ago to worldwithoutus

The massive loss of older (usually thicker) #Arctic sea ice - comparing changes in late December with the latest data from 2023...

[Data: https://nsidc.org/data/nsidc-0611, info: https://tc.copernicus.org/articles/14/1519/2020/]

Animation of two polar stereographic maps showing Arctic sea ice age in late December of 1984 compared to 2021. This is a large shift in younger ice in 2021.

ZLabe, 2 months ago to worldwithoutus

Have a great week! Here's your Monday ice update - #Arctic sea ice extent is currently the 15th lowest on record (JAXA data)...

• about 290,000 km² above the 2010s mean
• about 290,000 km² below the 2000s mean
• about 680,000 km² below the 1990s mean
• about 1,140,000 km² below the 1980s mean

Plots: https://zacklabe.com/arctic-sea-ice-extentconcentration/

ZLabe, 2 months ago to random

Last month was the warmest February on record globally in this dataset...

[(Preliminary) GISTEMPv4 data/info: https://data.giss.nasa.gov/gistemp/faq/]

ZLabe, 2 months ago to random

Global mean sea surface temperature anomalies (departure from average) so far this year ➡️ warmest on record

[Data from NOAA ERSSTv5 averaged over January to February]

ZLabe, 2 months ago to worldwithoutus

Variability and long-term decline of February #Arctic sea-ice thickness and sea-ice volume... (anomalously low for 2024)

• Data information: https://climatedataguide.ucar.edu/climate-data/pan-arctic-ice-ocean-modeling-and-assimilation-system-piomas

Animation showing Arctic sea ice volume (bar graph) and thickness (line graph) for each February from 1979 to 2024. There is a long-term decreased in both thickness and volume, but also year-to-year variability.

ZLabe, 2 months ago to worldwithoutus

Changes in March temperatures in the #Arctic by decade... (now updated through 2023 data)

Data from https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels-monthly-means?tab=overview

ZLabe, 2 months ago (edited 2 months ago) to random

Latest data: 🥺

• Carbon dioxide (new monthly record)
• Methane (new monthly record)
• Nitrous oxide (new monthly record)

Observations provided by https://gml.noaa.gov/ccgg/trends/

ZLabe, 2 months ago to worldwithoutus

Last month observed the warmest temperature anomalies in the northernmost parts of the #Arctic, especially close to the North Pole.

Graphic updated monthly at: https://zacklabe.com/arctic-temperatures/

ZLabe, 2 months ago to worldwithoutus

Happy Friday! Have a great weekend! Here's your latest ice update - #Arctic sea ice extent is currently the 12th lowest on record (JAXA data)...

• about 70,000 km² above the 2010s mean
• about 490,000 km² below the 2000s mean
• about 850,000 km² below the 1990s mean
• about 1,350,000 km² below the 1980s mean

More plots: https://zacklabe.com/arctic-sea-ice-extentconcentration/

ZLabe, 2 months ago to worldwithoutus

Last month observed above average sea surface temperatures around the edges of the #Arctic Ocean. I just added this graphic to update for my monthly Arctic climate updates... Hope it is useful.

Data from https://psl.noaa.gov/data/gridded/data.noaa.oisst.v2.highres.html

ZLabe, 2 months ago to random

🚨 Update. Methane also reached a preliminary new record high value in November 2023 (1934.2 ppb).

November 2022's global methane abundance was 1923.6 ppb.

Note there is a seasonal cycle. Data available from https://gml.noaa.gov/ccgg/trends_ch4/

ZLabe, 2 months ago to random

Yet againnnn, last month set a new record for global sea surface temperature, which was the warmest February on record...

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.

ZLabe, 2 months ago to worldwithoutus

My #Arctic sea-ice thickness and volume graphics are updated for February 2024: https://zacklabe.com/arctic-sea-ice-volumethickness/ #SciComm #DataViz #OpenScience #OpenData

ZLabe, 2 months ago to random

Compared to last year, recent weather conditions have contributed to an earlier increase in #Antarctic sea ice extent after the annual minimum was reached.

Graphic from https://zacklabe.com/antarctic-sea-ice-extentconcentration/. Data from https://nsidc.org/data/seaice_index.

ZLabe, 2 months ago to worldwithoutus

#Arctic air temperature rank by month over the satellite era - now updated through February 2024 (unusually warm)

• Ranks: 1=warmest (red), 45/46=coldest (blue)
• Download visual: https://zacklabe.com/arctic-temperatures/
• Data from: https://psl.noaa.gov/data/gridded/data.ncep.reanalysis.html

ZLabe, 2 months ago to worldwithoutus

Have a good week! Here's your Monday ice update - #Arctic sea ice extent is currently the 8th lowest on record (JAXA data)...

• about 20,000 km² below the 2010s mean
• about 620,000 km² below the 2000s mean
• about 960,000 km² below the 1990s mean
• about 1,480,000 km² below the 1980s mean

Other plots: https://zacklabe.com/arctic-sea-ice-extentconcentration/

ZLabe, 2 months ago to random

100 years of February sea surface temperature anomalies - a continuation of warmth across many of the ocean basins. Some of the largest anomalies were in the tropical east Atlantic.

Data from ERSSTv5 at https://ncei.noaa.gov/products/extended-reconstructed-sst

Animation of global maps showing sea surface temperature anomalies for each February over the last 100 years through 2024. Blue shading is shown for colder anomalies, and red shading is shown for warmer anomalies. There is large spatial variability, but a long-term warming trend found in nearly all regions.

ZLabe, 2 months ago to random

Upper ocean heat content is also soaring off the chart with the latest data update from the Japan Meteorological Agency...

0-700 meter graphic at https://zacklabe.com/climate-change-indicators/