Snow-off and snow-on days for Arctic/boreal region from ERA5, 1959-2024

<p>The variables are extracted from the hourly ERA5 data, variable SD ("snow depth" as water equivalent in m) as follows:</p> <p><strong>lastsnowJDay:</strong>&nbsp;The Julian Day of the last date during the Jan-Jun period of a given year with &gt; 0 snow.</p> <p><strong>lastsnowstreakJDay:</strong>&nbsp;The Julian Day of the last date during the Jan-Jun period of a given year that concludes an at least 7-day streak of consecutive days with &gt; 0 snow.</p> <p><strong>cumulsnowJanJun:</strong>&nbsp;Number of days during Jan-Jun period of a given year with &gt; 0 snow.</p> <p><strong>firstsnowJDay:</strong>&nbsp;The Julian Day of the first date during the Jul-Dec period of a given year with &gt; 0 snow.</p> <p><strong>firstsnowstreakJDay:</strong>&nbsp;The Julian Day of the first date during the Jul-Dec period of a given year that starts an at least 7 day streak of &gt; 0 snow.</p> <p><strong>cumulsnowJulDec:</strong> Number of days during Jul-Dec period of a given year with &gt; 0 snow.</p> <p>Time range: 1959-2024</p>