ZLabe , to Random stuff
@ZLabe@fediscience.org avatar

46 years of sea ice thickness during the month of April... What patterns do you see?

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

Snoro , to Random stuff
@Snoro@mastodon.social avatar

Rain Comes to the Arctic, With a Cascade of Troubling Changes

Rain used to be rare in the Arctic, but as the region warms, so-called rain-on-snow events are becoming more common. The rains accelerate ice loss, trigger flooding, landslides, and avalanches, and create problems for wildlife and the Indigenous people who depend on them

https://eos.org/articles/rain-comes-to-the-arctic-with-a-cascade-of-troubling-changes

ZLabe , to Random stuff
@ZLabe@fediscience.org avatar

Here's your Monday ice update. Have a good week! sea ice extent is currently the 13th lowest on record (JAXA data)...

• about 220,000 km² above the 2010s mean
• about 260,000 km² below the 2000s mean
• about 730,000 km² below the 1990s mean
• about 1,110,000 km² below the 1980s mean

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

Line graph time series of 2024's daily Arctic sea ice extent compared to decadal averages from the 1980s to the 2010s. The decadal averages are shown with different colored lines with white for the 1980s, green for the 1990s, blue for the 2000s, and purple for the 2010s. Thin white lines are also shown for each year from 2002 to 2022. 2024 is shown with a thick gold line. There is a long-term decreasing trend in ice extent for every day of the year shown on this graph between March and June by looking at the decadal average line positions.
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    • ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    100 years of May sea ice. Recent trends in declining sea ice extent are largest in the late summer/early fall (August-October) and smallest in the boreal spring (March-May)

    Full data set available from 1850 through 2017. Summary of methods: https://carbonbrief.org/guest-post-piecing-together-arctic-sea-ice-history-1850

    Animation of polar stereographic maps showing Arctic sea ice concentration for every May 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.

    AlaskaWx , to Random stuff
    @AlaskaWx@alaskan.social avatar

    Sea ice extent in the Bering Sea remains close to 1991-2020 median in NSIDC data. Large areas of open water north of the ice edge are normal this time of year. The lack of any significant areas of lower concentration ice in the southern Chukchi Sea is unusual for this point in the Spring.
    @Climatologist49 @ZLabe

    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    climate rankings are now in for April 2024: https://zacklabe.com/archive-2024/

    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    Changes in May sea ice thickness by decade...

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

    Four polar stereographic maps showing Arctic sea ice thickness for the month of May in 1984-1993, 1994-2003, 2004-2013, and 2014-2023. Thickness is shown with colors from black at 0 meters to purple at 2.5 meters to white at 5.0 meters. Sea ice in thinning in all regions over time.
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    • ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    Enjoy your weekend! Here's your Friday ice update - sea ice extent is currently the 13th lowest on record (JAXA data)...

    • about 220,000 km² above the 2010s mean
    • about 200,000 km² below the 2000s mean
    • about 650,000 km² below the 1990s mean
    • about 1,010,000 km² below the 1980s mean

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

    Line graph time series of 2024's daily Arctic sea ice extent compared to decadal averages from the 1980s to the 2010s. The decadal averages are shown with different colored lines with white for the 1980s, green for the 1990s, blue for the 2000s, and purple for the 2010s. Thin white lines are also shown for each year from 2002 to 2022. 2024 is shown with a thick gold line. There is a long-term decreasing trend in ice extent for every day of the year shown on this graph between March and June by looking at the decadal average line positions.
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    • ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    My sea-ice thickness and volume graphics are updated for April 2024 using PIOMAS data. This month was the 4th lowest April volume on record. https://zacklabe.com/arctic-sea-ice-volumethickness/

    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    Evolution of April 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/2024/05/western-arctic-leads-the-way-on-springtime-decline/

    *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 April 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 , to Random stuff
    @ZLabe@fediscience.org avatar

    This year set the 7th lowest annual maximum (winter) sea ice volume on record in the PIOMAS data set.

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

    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    My monthly temperature graphics have been updated for April 2024, which was near/below average for the northernmost areas of the Arctic Circle: https://zacklabe.com/arctic-temperatures/

    NunavutBirder , to Random stuff
    @NunavutBirder@mas.to avatar

    So, this was released today. My third stamp with Canada Post. Qarlinngua (The pants). And technically my second stamp with a family member in it, as the tiny figure in it is my son Travis. Now for one with Hilary in it.

    I’ve very proud of all of these, beyond the cache. They are about my home, and family. And also my family has a long history with the Post Office, 101 years. My grandfather, father, and brother were all postmasters in Roblin.

    A stamp. Fantastic rock formations including fluted cliffs, but featuring a giant standing rock with two legs that looks like a pair of pants. A tiny figure stands beside it. It is winter and there is snow, and bright blue skies. The stamp reads “Canada 2.92” and “Qarlinngua sea arch/Arche naturally de Qarlinngua, Arctic Bay (NU)
    ALT
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    • + xdydx
    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    Enjoy your week! Here's your Monday ice update - sea ice extent is currently the 10th lowest on record (JAXA data)...

    • about 40,000 km² above the 2010s mean
    • about 350,000 km² below the 2000s mean
    • about 760,000 km² below the 1990s mean
    • about 1,220,000 km² below the 1980s mean

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

    Line graph time series of 2024's daily Arctic sea ice extent compared to decadal averages from the 1980s to the 2010s. The decadal averages are shown with different colored lines with white for the 1980s, green for the 1990s, blue for the 2000s, and purple for the 2010s. Thin white lines are also shown for each year from 2002 to 2022. 2024 is shown with a thick gold line. There is a long-term decreasing trend in ice extent for every day of the year shown on this graph between March and June by looking at the decadal average line positions.
    ALT
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    • + mikey
    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    air temperature rank by month over the satellite era - now updated through April 2024 (which was a now rare "cool ranking")

    Image description Heat map-style graphic showing monthly air temperature rankings in the Arctic at the 925 hPa level for each month from January 1979 to April 2024. There is a long-term warming trend evident in each month. Blue shading is shown for colder months, and red shading is shown for warmer months. A yellow number is shown for each grid box to display the actual temperature ranking. April 2024 was the 27th warmest April on record.
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    • ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    Comparing the spatial patterns of changes in May temperature anomalies in the versus by decadal means...

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

    Four polar stereographic maps showing Antarctic near-surface air temperature anomalies for the month of February in 1984-1993, 1994-2003, 2004-2013, and 2014-2023. There is substantial regional variability.

    Four polar stereographic maps showing Arctic near-surface air temperature anomalies for the month of May in 1984-1993, 1994-2003, 2004-2013, and 2014-2023. Most all areas are observing long-term warming, which is largest at the edges of the Arctic Ocean on the Atlantic and Pacific facing marginal seas.
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    • ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    Happy Friday! Enjoy your weekend! Here's your latest ice update - sea ice extent is currently the 10th lowest on record (JAXA data)...

    • about 60,000 km² above the 2010s mean
    • about 340,000 km² below the 2000s mean
    • about 720,000 km² below the 1990s mean
    • about 1,210,000 km² below the 1980s mean

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

    Line graph time series of 2024's daily Arctic sea ice extent compared to decadal averages from the 1980s to the 2010s. The decadal averages are shown with different colored lines with white for the 1980s, green for the 1990s, blue for the 2000s, and purple for the 2010s. Thin white lines are also shown for each year from 2002 to 2022. 2024 is shown with a thick gold line. There is a long-term decreasing trend in ice extent for every day of the year shown on this graph between March and June by looking at the decadal average line positions.
    ALT
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    • ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    April 2024 sea ice extent was the 16th lowest on record.

    This was 570,000 km² below the 1981-2010 average. April ice extent is decreasing at about 2.44% per decade. Data: https://nsidc.org/data/seaice_index

    More context on these numbers: https://zacklabe.com/climate-viz-of-the-month/

    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    A last look at satellite-derived observations (CryoSat-2/SMOS merged product) of sea ice thickness before summer begins (https://spaces.awi.de/pages/viewpage.action?pageId=496702790)...

    Observations will resume again in the fall in association with the freeze season. Graphic from https://zacklabe.com/arctic-sea-ice-volumethickness/.

    polgeonow , to geopolitics group
    @polgeonow@mstdn.social avatar

    Interesting reporting as always from Mia Bennet of Cryopolitics, this time on the temporary Israeli base that was built in US state of to test defensive space missiles now being used in the .

    https://www.cryopolitics.com/2024/04/29/kodiak-pacific-spaceport-complex-israel/

    @geography @geopolitics

    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    Evolution of March 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/2024/04/arctic-sea-ice-walking-on-sunshine/

    *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 March 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 , to Random stuff
    @ZLabe@fediscience.org avatar

    Have a great week! Here's your Monday ice update - sea ice extent is currently the 10th lowest on record (JAXA data)...

    • about 40,000 km² below the 2010s mean
    • about 380,000 km² below the 2000s mean
    • about 780,000 km² below the 1990s mean
    • about 1,300,000 km² below the 1980s mean

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

    New blog on sea ice: https://zacklabe.com/climate-viz-of-the-month/

    Line graph time series of 2024's daily Arctic sea ice extent compared to decadal averages from the 1980s to the 2010s. The decadal averages are shown with different colored lines with white for the 1980s, green for the 1990s, blue for the 2000s, and purple for the 2010s. Thin white lines are also shown for each year from 2002 to 2022. 2024 is shown with a thick gold line. There is a long-term decreasing trend in ice extent for every day of the year shown on this graph between March and June by looking at the decadal average line positions.
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    • + xdydx
    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    My new 'climate viz of the month' blog has just been posted, which summarizes recent sea ice conditions this winter in the and places them in a broader climate context: https://zacklabe.com/climate-viz-of-the-month/

    Animation of Arctic sea ice concentration that shows the growth of ice during the 2023-2024 winter, which has ice concentration expand equatorward.

    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    Trend in April temperatures across the over the last 45 years...

    The greatest warming is along the Siberian coast and in the Barents Sea, especially near Novaya Zemlya and Severnaya Zemlya.

    [Data from ECMWF ERA5. For more info: https://doi.org/10.1175/BAMS-D-23-0079.1]

    ZLabe , to Random stuff
    @ZLabe@fediscience.org avatar

    April also observes a tendency for greater precipitation (green shading) over the satellite-era across the Barents Sea region of the , along with parts of Western Siberia and Central Greenland.

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