ZLabe

ZLabe, 1 month ago to random

Despite the now waning El Niño, the global mean sea surface temperature set a new record for the month of March this year...

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, 1 month ago to worldwithoutus

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

ZLabe, 1 month ago to random

March 2024 is now the 10th consecutive month of new global temperature records 🔥

More info on March's climate summary from ECMWF ERA5 data: https://climate.copernicus.eu/surface-air-temperature-march-2024

Orthographic map showing 2-m air temperature anomalies in March 2024 relative to a 1981-2010 baseline using ERA5 data. This visualization shows Australia, Antarctica, and Asia. Most areas are warmer than average.

ZLabe, 1 month ago to worldwithoutus

Have a great rest of your week! Here's your Monday's ice update - #Arctic sea ice extent is currently the 14th lowest on record (JAXA data)...

• about 110,000 km² above the 2010s mean
• about 290,000 km² below the 2000s mean
• about 820,000 km² below the 1990s mean
• about 1,300,000 km² below the 1980s mean

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

ZLabe, 1 month ago to random

Another visualization design showing changes in monthly atmospheric global methane (CH₄; potent greenhouse gas) - just updated through all of 2023

Data from https://gml.noaa.gov/ccgg/trends_ch4/

ZLabe, 1 month ago to random

Last month continued to set another new monthly record (March 2024) for temperature anomalies in the Southern Hemisphere...

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

ZLabe, 1 month ago to random

🚨 Methane (CH₄; potent greenhouse gas) also reached another preliminary record high value for its latest monthly update (December 2023 - 1932.2 ppb)

December 2022's global methane abundance was 1924.6 ppb. Data freely available from https://gml.noaa.gov/ccgg/trends_ch4/

ZLabe, 1 month ago to random

🚨 I have another record to share - carbon dioxide (CO₂) averaged a record high of 425.4 ppm in March 2024

10 years ago March averaged about 399.9 ppm

Preliminary data: https://gml.noaa.gov/ccgg/trends/

ZLabe, 1 month ago to random

Last month averaged the 5th lowest #Antarctic sea ice extent on record for the month of March.

This was 850,000 km² below the 1981-2010 average. Data from NSIDC at https://nsidc.org/data/seaice_index

ZLabe, 1 month ago to worldwithoutus

March 2024 #Arctic sea ice extent was the 15th lowest on record...

This was 560,000 km² below the 1981-2010 average. March ice extent is decreasing at about 2.42% per decade. Data: https://nsidc.org/data/seaice_index

ZLabe, 1 month 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 160,000 km² above the 2010s mean
• about 220,000 km² below the 2000s mean
• about 800,000 km² below the 1990s mean
• about 1,190,000 km² below the 1980s mean

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

ZLabe, 1 month ago to random

Spring (phenological) arrived anomalously early across much of the contiguous United States. It was even record early for some areas along the northern gradient of the onset maps.

• Monitor: https://usanpn.org/news/spring
• Future projections: https://link.springer.com/article/10.1007/s00382-016-3313-2

Map of the contiguous United States showing the spring leaf index anomaly as of March 30, 2024 from the USA National Phenology Network. Many areas are late this year for spring onset at over 20 days late.

ZLabe, 1 month ago to worldwithoutus

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

Graphic available at https://zacklabe.com/arctic-sea-ice-volumethickness/

ZLabe, 1 month ago to random

The freeze-up continues in the #Antarctic after the annual minimum was reached a few weeks ago. Sea-ice extent is unusually low, but is well above the previous record for the current date.

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

ZLabe, 1 month ago to random

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

Line graph time series of monthly mean surface temperature anomalies for the Antarctic region only. Every month is shown from 1940 to 2024. There is a long-term warming trend in all months of the year, but less obvious than the other regions.

ZLabe, 1 month ago to random

A great summary of our workshop this week on learning how to make your research matter for communicating climate change: https://sites.temple.edu/tusustainability/2024/03/27/making-your-research-matter-communicating-for-the-climate/

ZLabe, 1 month ago to worldwithoutus

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

• about 260,000 km² above the 2010s mean
• about 130,000 km² below the 2000s mean
• about 660,000 km² below the 1990s mean
• about 980,000 km² below the 1980s mean

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

ZLabe, 1 month ago to worldwithoutus

100 years of March sea ice... #Arctic sea ice reaches its annual maximum extent in March (seasonal cycle).

It's always incredible to compare the southern extent of sea ice, which reaches 45°N latitude in the Sea of Okhotsk (western Pacific).

Data info: https://carbonbrief.org/guest-post-piecing-together-arctic-sea-ice-history-1850

Animation of polar stereographic maps showing Arctic sea ice concentration for every March from 1918 to 2017. There is a long-term decreasing trend in recent years around the ice edge and substantial interannual variability through the entire dataset.

ZLabe, 1 month ago to random

Comparing vertical cross-sections of March temperature trends in the Southern Hemisphere versus Northern Hemisphere...

Find the climate change indicators of tropospheric warming (https://science.org/doi/10.1126/science.aas8806) and stratospheric cooling (https://pnas.org/doi/10.1073/pnas.2300758120).

Graphic showing a vertical cross-section of zonal mean temperature trends in the Northern Hemisphere for March from 1979 through 2022. There is a long-term warming trend in the troposphere and cooling in the stratosphere. Red shading is shown for warming trends, and blue shading is shown for cooling trends.

ZLabe, 1 month ago to random

Revisiting mean temperature departures over the last 3 months around the world...

🟥 warmer than average
🟦 colder than average

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

ZLabe, 2 months ago to worldwithoutus

Simulated reconstruction of March #Arctic sea ice thickness since 1901. Interannual variability and a decline in recent years.

Information about this dataset is available at https://doi.org/10.1175/JCLI-D-19-0008.1. Note that the data is only available through 2010 due to use of ERA-20C forcing.

Animation of polar stereographic maps showing Arctic sea ice thickness for each March from 1901 through 2010. There is large interannual variability and a long-term decrease in recent years. Thickness ranges from 0 to 5 meters on this graphic with shades of blue, purple, pink, yellow, and white.

ZLabe, 2 months ago to worldwithoutus

Transition time of year... central #Arctic (e.g. >80°N) continues to be very cold for weeks after the annual sea-ice extent max. However, this max is reached in March due to melting sea ice in the marginal seas - note how far south they extend! Graphic at https://zacklabe.com/arctic-climate-seasonality-and-variability/.

ZLabe, 2 months ago to random

My climate change dashboard is updated for this past month...

Higher resolution graphic available at https://zacklabe.com/climate-change-indicators/

ZLabe, 2 months ago to random

A closer look at the anomalous warmth (temperatures >8°C above the 1981-2010 average) stretching from northern Siberia toward the North Pole during February 2024.

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

ZLabe, 2 months ago to worldwithoutus

2024 observed the 14th lowest annual maximum #Arctic sea ice extent.

This maximum was set 2 days later than the 1981-2010 average.

For more official information: https://nsidc.org/arcticseaicenews/2024/03/arctic-sea-ice-reaches-a-below-average-maximum/