May 1st, the first day of Summer

The seasons of Spring,Summer,Fall, Winter can only be explained by the daily and orbital motions of the Earth and Mid-Summer and Mid-Winter defined by the Solstice events for either hemisphere and specifically at the North and South Poles which are at polar noon.

There is no such things as the meteorological seasons and separately the astronomical seasons as to explain the temperature fluctuations across hemispheres over an annual orbit requires planetary dynamics. Roughly 6 weeks either side of the Solstice and Equinoxes is the beginning or end of a season which in calendar months would make May 1st the beginning of Summer.

Those who try to chase a chaotic designation of heat and cold across latitudes as the beginning and end of a season have no regard for planetary dynamics and the cause of the seasons which rely on two specific day/night cycles and two separate surface rotations to the central Sun.

oriel36 wrote:
The seasons of Spring,Summer,Fall, Winter can only be explained by the
daily and orbital motions of the Earth and Mid-Summer and Mid-Winter
defined by the Solstice events for either hemisphere and specifically at
the North and South Poles which are at polar noon.

There is no such things as the meteorological seasons and separately the
astronomical seasons as to explain the temperature fluctuations across
hemispheres over an annual orbit requires planetary dynamics. Roughly 6
weeks either side of the Solstice and Equinoxes is the beginning or end
of a season which in calendar months would make May 1st the beginning of Summer.

Those who try to chase a chaotic designation of heat and cold across
latitudes as the beginning and end of a season have no regard for
planetary dynamics and the cause of the seasons which rely on two
specific day/night cycles and two separate surface rotations to the central Sun.


As usual you are wrong.
Met. Office definition - perfectly sensible and agreed by most normal
people.

Meteorological season
Meteorological spring will begin on 01 March 2016 and ends on 31 May 2016.

The meteorological seasons consists of splitting the seasons into four
periods made up of three months each. These seasons are split to coincide
with our Gregorian calendar making it easier for meteorological observing
and forecasting to compare seasonal and monthly statistics. By the
meteorological calendar, spring starts on 1 March.

The seasons are defined as Spring (March, April, May), Summer (June, July,
August), Autumn (September, October, November) and Winter (December,
January, February).

Astronomical season
The next astronomical spring begins on 20 March 2016 and ends on 19 June
2016.

The astronomical calendar determines the seasons due to the 23.5 degree
tilt of the Earth's rotational axis in relation to its orbit around the
sun. Both equinoxes and solstices are related to the Earth's orbit around
the sun.

On Sun, 1 May 2016 14:38:21 -0000 (UTC), Mike Collins
wrote:

As usual you are wrong.
Met. Office definition - perfectly sensible and agreed by most normal
people.

Meteorological season
Meteorological spring will begin on 01 March 2016 and ends on 31 May 2016.

The meteorological seasons consists of splitting the seasons into four
periods made up of three months each. These seasons are split to coincide
with our Gregorian calendar making it easier for meteorological observing
and forecasting to compare seasonal and monthly statistics. By the
meteorological calendar, spring starts on 1 March.

The seasons are defined as Spring (March, April, May), Summer (June, July,
August), Autumn (September, October, November) and Winter (December,
January, February).

Astronomical season
The next astronomical spring begins on 20 March 2016 and ends on 19 June
2016.

Of course, there are also solar seasons, which are centered on the
solstices and equinoxes. Quite popular in Ireland some centuries back,
and still so with pagans.

Clearly, the seasons are created by orbital dynamics, but the choice
of calendar dating is somewhat arbitrary and based on intent. That's a
perfectly reasonably thing to do (which is obvious if you're a
reasonable person).

On Sunday, May 1, 2016 at 3:58:38 PM UTC+1, Chris L Peterson wrote:
On Sun, 1 May 2016 14:38:21 -0000 (UTC), Mike Collins
wrote:

As usual you are wrong.
Met. Office definition - perfectly sensible and agreed by most normal
people.

Meteorological season
Meteorological spring will begin on 01 March 2016 and ends on 31 May 2016.

The meteorological seasons consists of splitting the seasons into four
periods made up of three months each. These seasons are split to coincide
with our Gregorian calendar making it easier for meteorological observing
and forecasting to compare seasonal and monthly statistics. By the
meteorological calendar, spring starts on 1 March.

The seasons are defined as Spring (March, April, May), Summer (June, July,
August), Autumn (September, October, November) and Winter (December,
January, February).

Astronomical season
The next astronomical spring begins on 20 March 2016 and ends on 19 June
2016.

Of course, there are also solar seasons, which are centered on the
solstices and equinoxes. Quite popular in Ireland some centuries back,
and still so with pagans.

Clearly, the seasons are created by orbital dynamics, but the choice
of calendar dating is somewhat arbitrary and based on intent. That's a
perfectly reasonably thing to do (which is obvious if you're a
reasonable person).

The seasons are created by two surface rotations to the central Sun acting in combination with two respective day/night cycles with their own terms of dawn, sunrise, noon, sunset, twilight and midnight. There is polar dawn, polar sunrise, polar noon and so on just as the separate daily rotation has these terms.

On June 21st it will be polar noon, the June Solstice and Mid-Winter at the South pole while in the Northern hemisphere it will be polar noon, the June Solstice and Mid-Summer. Seasons begin and end 6 weeks either side of these planetary markers for the Earth's rotations or as close to the beginning of a calendar month as possible.

The astronomical seasons as distinct from the meteorological seasons is as contrived as the fictional 'solar vs sidereal day' for everyone has to run back to the cause of the seasons and the motions of the Earth including the polar day/night cycle which defines polar noon, the Solstice and Mid- Summer/winter.

It takes two separate rotations to create the following spectacle in order to make sense of the smallest and greatest arcs of the Sun from horizon to horizon over the course of a year -

http://www.eaae-astronomy.org/WG3-SS...unsetFig4b.gif

Oops - it will be polar midnight on June 21st at the South pole and also the Solstice and Mid-Winter whereas it will be polar noon , the Solstice and Mid-Summer in the Northern hemisphere.

The celestial sphere description is that the Sun is above the tropics on the Solstice but the Sun is a giant star at the center of the solar system and 93,000,000 miles away -

http://www.universetoday.com/wp-cont...thcompared.jpg

Using heat/cold to define the seasons may work for a continental landmass but once a person has to explain the cause of the seasons it becomes disruptive as the lag in annual temperature fluctuations after the Solstices is in response to the daily and orbital traits of the Earth's motions.

On Monday, May 2, 2016 at 12:48:04 PM UTC+1, Mike Collins wrote:


Today is the early May bank holiday in England and Wales. On the 30th of
May it will be the Spring bank holiday.

People take great pleasure in figuring things out and especially new perspectives which make sense, at least you stuck around as opposed to the other dunce you said his piece and disappeared as is his nature.

The annual temperature fluctuations follow roughly the same path as the daily temperature fluctuations in that the warmest part of the cycle is around 3 PM and hours removed from noon/midday. There is no meteorological noon at 3 PM set off against 12 hour noon with its prefixes of AM and PM dividing the Sun's position between sunrise and sunset.

Midsummer occurs on June 21st but the warmest days have yet to come however unthinking people have decided that warmth when the middle of the summer is much like deciding the middle of the 24 hour day is at 3PM when temperature is around its highest and that is absurd much like beginning the summer on any other day than May 1st and ending it on July 30th which places the June Solstice around June 21st, polar noon and Midsummer.

The seasons are determined by the dynamics of the planet which include the fact that it generally gets warmer after the solstice and in the afternoon as opposed to the midday or on the Solstice. There is no such thing as the meteorological seasons which falls into the same vapid and fictional category as 'solar vs sidereal' time.

Wish people took pride in their ability to reason but unfortunately they do not.

oriel36 wrote:
On Monday, May 2, 2016 at 12:48:04 PM UTC+1, Mike Collins wrote:


Today is the early May bank holiday in England and Wales. On the 30th of
May it will be the Spring bank holiday.

People take great pleasure in figuring things out and especially new
perspectives which make sense, at least you stuck around as opposed to
the other dunce you said his piece and disappeared as is his nature.

The annual temperature fluctuations follow roughly the same path as the
daily temperature fluctuations in that the warmest part of the cycle is
around 3 PM and hours removed from noon/midday. There is no
meteorological noon at 3 PM set off against 12 hour noon with its
prefixes of AM and PM dividing the Sun's position between sunrise and sunset.

Midsummer occurs on June 21st but the warmest days have yet to come
however unthinking people have decided that warmth when the middle of the
summer is much like deciding the middle of the 24 hour day is at 3PM
when temperature is around its highest and that is absurd much like
beginning the summer on any other day than May 1st and ending it on July
30th which places the June Solstice around June 21st, polar noon and Midsummer.

The seasons are determined by the dynamics of the planet which include
the fact that it generally gets warmer after the solstice and in the
afternoon as opposed to the midday or on the Solstice. There is no such
thing as the meteorological seasons which falls into the same vapid and
fictional category as 'solar vs sidereal' time.

Wish people took pride in their ability to reason but unfortunately they do not.








By your reckoning August in the Northern Hemisphere is Autumn.

It's not!

On Monday, May 2, 2016 at 2:25:13 PM UTC+1, Mike Collins wrote:


By your reckoning August in the Northern Hemisphere is Autumn.

It's not!

The planet has two separate day/night cycles arising from separate rotations to the Sun and each has its distinct dawn, sunrise, noon, sunset and twilight and midnight.

Polar dawn begins on either March 21st or September 21st depending on which pole is being discussed and half way between polar sunrise and polar sunset is polar noon on the Solstices.

Like its daily rotational counterpart the warmest and coldest part of the polar day is not on the Solstices but afterwards and because the entire planet rotates as a function of its orbital motion , the polar day/night cycle when combine with daily rotation creates the seasons at lower latitudes.

The same terms apply to midsummer as they do midday and the same heating effects are present at the daily and seasonal scales in terms of the warming after midsummer on the Solstice as they do the daily cycle at noon. It is impossible to separate polar noon from midsummer unless you are a thug who wants to create a division on the seasons without reference to the motions ad traits which causes the temperatures to rise and fall over the course of a year.

The older generations had a type of ancestral class in celebrating the Midsummer around June 21st and the start of Autumn roughly 6 weeks later on August 1st just as May 1st starts summer and ends July 31st. This is not a trivial or small matter, the daily and orbital motions explain the seasons and fix them annually by means of polar dawn,polar noon,polar twilight and polar midnight around the respective names of Solstices and Equinoxes and the inputs follow roughly the same path for temperature fluctuation after these events.

On Monday, May 2, 2016 at 9:25:13 AM UTC-4, Mike Collins wrote:

By your reckoning August in the Northern Hemisphere is Autumn.

It's not!

In some cultures it was and in some it still is, sort of.

In the US the ground hog decides if Spring has arrived. :-)

If the ground hog decides that spring really begins on Feb. 2, then summer begins May 1, fall begins August 1, winter begins Oct 31.

Fall semesters often begin in August, Spring semesters in January.

Summer break from school is usually June, July and August.

"Officially" the seasons start on equinoxes and solstices.

None of this actually matters to anyone except you and the birdman.

On Sun, 1 May 2016 14:38:21 -0000 (UTC), Mike Collins
wrote:
Meteorological season
Meteorological spring will begin on 01 March 2016 and ends on 31
May 2016.

..........

The seasons are defined as Spring (March, April, May), Summer
(June, July,
August), Autumn (September, October, November) and Winter (December,
January, February).

That definition depends on your country. In my country the sensors
are defined from the temperature. Here meteorologiska spring starts
when the daily average temperature has been above 0°C for 7 days.
Summer starts when above 10°C for 5 days, autumn when below 10°C for
7 days and winter when below 0°C for 5 days. We also have an addition
rulle saying that spring never starts earlier than 15 February and
autumn never earlier than 1 August. And yes, some years summer and/or
winter can be skipped in some places.