Arctic

The NSIDC page Springtime in the Artic (5/3/2022) has a section on sea ice age. At the end of last summer, the extent of the oldest ice (greater than 4 years old) tied with 2012 for the lowest in the satellite record. This spring, we continue to see a dominance …

  The paper New climate models reveal faster and larger increases in Arctic precipitation than previous projected by Michelle R McCrystall, et. el (11/30/2021) in Nature Communication has some great graphs. In fact, stop reading here and study the graph along with the caption; so much inf. Of course, the …

The graph here is from the paper Co-production of knowledge reveals loss of Indigenous hunting opportunities in the face of accelerating Arctic climate change in Environmental Research by Donna D W Houser, et. el. (8/24/2021). From the discussion: Overall, our analyses indicate that the ugruk harvesting season for Qikiqtaġruŋmiut hunters …

The climate.gov article 2020 Arctic sea ice minimum second lowest on record by Michon Scott (9/21/2020) reports: On September 15, 2020, the National Snow and Ice Data Center (NSIDC) announced, Arctic sea ice appeared to have reached its annual minimum extent. At 1.44 million square miles (3.74 million square kilometers), this …

  One section of NOAA’s Arctic Report Card: Update for 2019 is on Tundra Greenness.  The graph here from their report is for maximum NDVI: Normalized Difference Vegetation Index (NDVI), which is sensitive to the unique properties of photosynthetically-active vegetation in the Red and Near Infrared wavelengths. NDVI is highly …

The melting season for Arctic Sea Ice has started with a quick drop in ice. The total ice is at a record low for this time of year (orange line in chart). But, how this plays out throughout the melting seasons is hard to predict based solely on past seasons. …