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ZLzlabe.bsky.social

Sea ice in the Canadian #Arcticzacklabe.files.wordpress.com/2022/08/b203...). Data from the NSIDC.

Line graph time series showing daily Arctic sea ice extent in the Canadian Arctic for 2024 compared to each year from 1979 to 2023. There is a large seasonal cycle on this graph and a long-term decreasing trend for days during the melt season from May to November.
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ZLzlabe.bsky.social

As we are moving into the #Arcticzacklabe.com/arctic-sea-i....

Line graph time series showing integrated arctic sea ice extent anomalies for each season from September 15, 1979 to September 15, 1980 through September 15, 2024. Each line is shown with a different color from blue to red. Data is from the NSIDC and anomalies are computed relative to a 1981-2010 baseline. There is a long-term decreasing trend in sea ice extent as visible by each yearly line.
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cbrovld.bsky.social

Arctic sea ice retreated to near-historic lows in the Northern Hemisphere this summer, likely melting to its minimum extent for the year on Sept.11, 2024, according to researchers at NASA and the National Snow and Ice Data Center (NSIDC). cerebral-overload.com/?p=117543

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JHjim-hunt.bsky.social

The NSIDC announced the 2024 Arctic sea ice minimum extent today: greatwhitecon.info/2024/09/the-...#Arctic alter ego descended into the heart of darkness...

A comment by Jim Hunt on the Watts Up With That article entitled "Arctic Ice Still There!" on September 24th 2024. A mere 11 downvotes so far!
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ZLzlabe.bsky.social

*Note that there is currently an SSMIS outage, and my other plots using NSIDC data will therefore not be able to update at this time.

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Ecopper-seller.bsky.social

Pra quem não leu o ultimo relatorio da World Meteorological Organization (WMO), em parceria com as Nações Unidas, segue aqui um resumo: It's over in ways we are not even aware of

Looking ahead, there is an 86% chance of at least one year in the next five years exceeding 2023 as the warmest year on record and an 80% chance that the global mean near‑surface temperature will temporarily exceed 1.5 °C above pre‑industrial levels at least one of the next five years. Although progress has been made in mitigating global GHG emissions, the emissions gap remains high. If current policies are continued, it is estimated (with 66% probability) that global warming will be kept to a maximum of 3 °C throughout the century. To reach levels consistent with limiting global warming to below 2 °C and 1.5 °C, global GHG emissions in 2030 must be reduced by 28% and 42%, respectively, from the emission levels that current policies are projected to deliver. Additionally, the complex and escalating nature of climate risks underscores the need for robust adaptation that is grounded in diverse knowledge and promotes inclusive engagement. As a result, ambitious adaptation action can help
Figures 3 and 4 of the report. Figure 3. Five-year running average of global temperature anomalies (°C relative to 1850–1900) from 1854 to 2024 (data to May/July 2024) shown as a difference from the 1850–1900 average. Six data sets are shown as indicated in the legend, including two reanalyses. It shows a consistent increase of global temperatures since the 1970s, reaching around 1.3 to 1.4C above the 1850-1900 average. Figure 4. Global ocean heat content 0–2 000 m from 1960 to 2023. Data are based on a combination of data sets. It shows a consistent increase in ocean heat content from 1960 to 2020, well above base values.
Figure 5. Sea-ice extent differences from the 1991–2020 average in the Arctic for the months with maximum ice cover (March) and minimum ice cover (September) from 1979 to March 2024. Source: United States National Snow and Ice Data Center (NSIDC) and European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) Ocean and Sea Ice Satellite Application Facility (OSI SAF). It shows a consistent decrease in sea-ice extent since 1980. Figure 6. Sea-ice extent differences from the 1991–2020 average in the Antarctic for the months with maximum ice cover (September) and minimum ice cover (February) from 1979 to February 2024. Source: NSIDC and EUMETSAT OSI SAF United in Science 2024 12. It shows a sharp drop in sea-ice extent differences in recent years.
Figure 8. Global GHG emissions under different scenarios and the emissions gap in 2030 and 2035 (median estimate and 10th to 90th percentile range). Note: GtCO2-eq – billion tons of carbon dioxide equivalent. Source: UNEP, 2023a. It shows that current policies are well off needed efforts to reduce GHG relative to the 1.5ºC increase in global temperature target from the Paris Agreement.
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MHmsmithma.bsky.social

:( The National Snow and Ice Center's near real time sea ice data has been down for the past few days. Climate data records are a long term project that take continual effort to maintain. I'm grateful to NSIDC for their work. Here's hoping the issue is minor and easily addressed

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ZLzlabe.bsky.social

A longer perspective for August #Arcticcarbonbrief.org/guest-post-p....

Line graph time series of August Arctic sea ice extent for every year from 1850 through 2024. Two datasets are compared in this time series. The Walsh et al. 2019 reconstruction is shown with a solid blue line. The NSIDC Sea Ice Index v3 is shown with a dashed red line only for the satellite era. There is large interannual variability and a long-term decreasing trend over the last few decades.
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ZLzlabe.bsky.social

Last month averaged the 2nd lowest #Antarcticnsidc.org/data/seaice_...

Line graph time series of Antarctic sea ice extent for each year in August from 1979 to 2024. There are no statistically significant long-term trends. 2024 is the 2nd lowest on record in this time series.
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