Wednesday, 16 March 2016

Spring has (officially) sprung!

I am very lucky to experience four different temporal seasons in my part of the world: Spring, Summer, Winter and Autumn.  Walking anywhere, right about this time of year, I see the newly flowering plants, the daffodils making their way through the green grass pushing their faces up towards to sun, the squirrels finding their buried nuts again and I love it! The days become longer and temperature is just generally more mellow.

Snaps I took this weekend to capture my little bit of Spring!

However, what decided when we say spring- and the other seasons- starts? 

So, the seasons can be determined via two calendars, the Meteorological or the Astronomical calendar, and it depends on which you follow as to when a season can be determined to begin.

If the Astronomical calendar is followed, then the seasons are based upon the Earth's position relative to the sun. This calendar takes into account both the longest and shortest day of the year  (the solstices). This calendar is very difficult to follow, due to the variation in the Earth's orbit and tilt on its axis over the years. This made it harder to clearly keep track of the seasons, thus the Meteorological calendar was introduced.

Based on the cycles of temperatures throughout the year, the Meteorological calendar coincides with the Gregorian calendar to create a definitive changeover between the seasons, which remains consistent throughout the years.

Seasons as defined by the Meteorological calendar
Spring- March, April, May
Summer- June, July, August
Autumn- September, October, November
Winter- December, January, February

Seasons as defined by the Astrological calendar
Spring- March 20/21
Summer- June 21/22
Autumn- September 22/23
Winter- December 21/22

Regardless of which calendar you follow, we will all celebrate the seasons in the same month.

Have you got any seasonal snaps? I would love to see them!

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