DTN/The Progressive Farmer Senior Ag Meteorologist. Carpe tempestus diem!
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ALT Line graph time series for Arctic sea ice volume in every August from 1901 through 2023. Two datasets are compared between PIOMAS-20C (a blue line) and PIOMAS v2.1 (a dashed red line). There is large interannual variability, but a long-term decreasing trend since 1990.
ALT Line graph time series of 2023's daily global sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. The year 2016 is also highlighted in yellow, which is the current absolute magnitude record low. Anomalies are computed relative to a 1981-2010 baseline. There is substantial interannual and daily variability. Data from the NSIDC.
ALT Line graph time series of 2023's daily global sea ice extent in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. There is substantial interannual and daily variability. Seasonal cycles are visible. A disclaimer is shown, which states: Trends/variability in Arctic and Antarctic sea ice are affected by very different atmospheric/oceanic processes and opposite seasonality!
ALT Red line graph time series of monthly carbon dioxide abundance from January 1959 through August 2023. There is a seasonal cycle and long-term increasing trend. Current levels of CO2 are at 420 ppm. This is the Keeling Curve graph. A line for CO2 10 years ago is also annotated.
ALT Red colored line graph time series of global atmospheric methane abundance from January 1984 through May 2023. Methane abundance is measured in units of parts per billion. Current levels are 1922 ppb. A seasonal cycle is visible on the graph. There is also decadal variability and a long-term increasing trend.
ALT Screenshot of a slide showing two global maps with temperature anomalies in either July 1936 or July 2023. July 2023 is much warmer than 1936, except for a small region in the central United States during the Dust Bowl.
ALT Line graph time series of 2023's daily global sea ice extent in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. There is substantial interannual and daily variability. Seasonal cycles are visible. A disclaimer is shown, which states: Trends/variability in Arctic and Antarctic sea ice are affected by very different atmospheric/oceanic processes and opposite seasonality!
ALT Red line graph time series of monthly carbon dioxide abundance from January 1959 through July 2023. There is a seasonal cycle and long-term increasing trend. Current levels of CO2 are at 422 ppm. This is the Keeling Curve graph. A line for CO2 10 years ago is also annotated.
ALT Global map showing surface air temperature anomalies for June 2023. Most areas are warmer than average, except for parts of western Australia, Greenland, south Pacific, and United States. Red shading is shown for warmer anomalies, and blue shading is shown for colder anomalies. The largest temperature anomalies are in the Antarctic.
ALT Line graph time series of 2023's daily Antarctic sea ice extent anomalies in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. Anomalies are computed relative to a 1981-2010 baseline. 2023 is a negative outlier for this time of year. There is substantial interannual and daily variability. There are no clear long-term trends.
ALT Line graph time series of 2023's daily global sea ice extent in red shading compared to each year from 1979 to 2022 using shades of purple to white for each line. There is substantial interannual and daily variability on this graph showing only between May and October months. A long-term decreasing trend is visible, which is a result of only the Arctic. Data is from the NSIDC.