australian (and southern hemisphere confusion)

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  • LCHIEN
    Super Moderator
    • Dec 2002
    • 21978
    • Katy, TX, USA.
    • BT3000 vintage 1999

    #1

    australian (and southern hemisphere confusion)

    OK, Rod,
    I need an anwser.
    I'm confused about seasons south of the equator.

    Simplified:
    I know its the warm season, but
    Is it winter down there or summer?

    Full text:
    Thus the question is technically
    is Summer the "warm season" when the earth is tilted toward the sun more, or is it absolute ie. between Jun 21 and Sept 21? (what we call Summer Solstice and atumnal equinox)

    In the same line is it winter when its cold or is it winter when its between
    Dec 21 and March 21?(what we call winter solstice and Vernal equinox).

    If its the second definition then the summer solstice and the winter solstice are swapped when you go northern hemisphere to southern hemisphere?

    Dictionaries say this:
    1.the season between spring and autumn, in the Northern Hemisphere from the summer solstice to the autumnal equinox, and in the Southern Hemisphere from the winter solstice to the vernal equinox. 2.the period comprising the months of June, July, and August in the U.S., and from the middle of May to the middle of August in Great Britain. 3.a period of hot, usually sunny weather: We had no real summer last year. 4.the hotter half of the year (opposed to winter): They spend the summers in New Hampshire and the winters in Florida.

    But its confusing. definition 4 agrees with my first guess, but definition 1 seems to be circular in that summer and winter are defined in terms of the winter and summer solstice which is self-defining then.

    Still A little ambiguous to me. Is it Calendar-based or astronomically-based?
    Last edited by LCHIEN; 01-31-2007, 09:45 AM.
    Loring in Katy, TX USA
    If your only tool is a hammer, you tend to treat all problems as if they were nails.
    BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions
  • Russianwolf
    Veteran Member
    • Jan 2004
    • 3152
    • Martinsburg, WV, USA.
    • One of them there Toy saws

    #2
    1.the season between spring and autumn, in the Northern Hemisphere from the summer solstice to the autumnal equinox, and in the Southern Hemisphere from the winter solstice to the vernal equinox.
    Summer Solstice, Autumnal Equinox, Winter Solstice, and Vernal Equinox are astronomical measures and do not change based on hemisphere. So right now by this definition, it is Summer in Australia.
    Mike
    Lakota's Dad

    If at first you don't succeed, deny you were trying in the first place.

    Comment

    • SARGE..g-47

      #3
      Lchien..

      I have been to Austraila twice and I do believe that "it is" just the opposite of N. hemisphere seasons. In other words, if it's winter here it's summer there and I believe that is the way it they address it. Again, I will be watching to get the definite south-bound call from the horse's mouth as I wouldn't bet my life saving on it, but it's winter here and summer there using today's date.

      Regards..

      Comment

      • LCHIEN
        Super Moderator
        • Dec 2002
        • 21978
        • Katy, TX, USA.
        • BT3000 vintage 1999

        #4
        Originally posted by Russianwolf
        Summer Solstice, Autumnal Equinox, Winter Solstice, and Vernal Equinox are astronomical measures and do not change based on hemisphere. So right now by this definition, it is Summer in Australia.

        Winter solstice based on the Northpole tilt away from the sun - as you say its an astronomical position.
        So the Winter solstice has just passed in both the Northern and summer hemisphere (e.g. everywhere).

        So the summer season begins at the winter solstice (~Dec 21) in Aus.& the southern hemisphere and winter begins at the winter solstice (~Dec 21) in the Northern Hemisphere.

        So in simplified terms, summer is always the warm season.

        and technically confusing and seemingly contradictory, but apparently true, the winter solstice occurs in either the warm season or the cold season depending upon which hemisphere you are in. (I knew there was something fishy).
        Last edited by LCHIEN; 01-31-2007, 10:43 AM.
        Loring in Katy, TX USA
        If your only tool is a hammer, you tend to treat all problems as if they were nails.
        BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions

        Comment

        • Russianwolf
          Veteran Member
          • Jan 2004
          • 3152
          • Martinsburg, WV, USA.
          • One of them there Toy saws

          #5
          http://www.msnbc.msn.com/id/16901659/?GT1=8921

          Funny, I was reading this article and the paragraph about when and where they sail caught my attention.
          Mike
          Lakota's Dad

          If at first you don't succeed, deny you were trying in the first place.

          Comment

          • RodKirby
            Veteran Member
            • Dec 2002
            • 3136
            • Melbourne, Victoria, Australia.
            • Mao Shan TSC-10RAS

            #6
            Avoiding all the technical stuff People in Oz consider...

            Summer: Dec - Feb (Hot)
            Autumn: Mar - May
            Winter.: Jun - Aug (Cold)
            Spring.: Sep - Nov

            HTH
            Downunder ... 1" = 25.4mm

            Comment

            • LCHIEN
              Super Moderator
              • Dec 2002
              • 21978
              • Katy, TX, USA.
              • BT3000 vintage 1999

              #7
              Originally posted by Russianwolf
              http://www.msnbc.msn.com/id/16901659/?GT1=8921

              Funny, I was reading this article and the paragraph about when and where they sail caught my attention.
              Yeah that's the article that popped the whole season/hemisphere question into my mind again ( I thought of it before) and made me post.
              Loring in Katy, TX USA
              If your only tool is a hammer, you tend to treat all problems as if they were nails.
              BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions

              Comment

              • LCHIEN
                Super Moderator
                • Dec 2002
                • 21978
                • Katy, TX, USA.
                • BT3000 vintage 1999

                #8
                Originally posted by RodKirby
                Avoiding all the technical stuff People in Oz consider...

                Summer: Dec - Feb (Hot)
                Autumn: Mar - May
                Winter.: Jun - Aug (Cold)
                Spring.: Sep - Nov

                HTH
                Got it. Thanks.
                That's in agreement with the conclusion Russianwolf helped me reach.
                Loring in Katy, TX USA
                If your only tool is a hammer, you tend to treat all problems as if they were nails.
                BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions

                Comment

                • cgallery
                  Veteran Member
                  • Sep 2004
                  • 4503
                  • Milwaukee, WI
                  • BT3K

                  #9
                  Originally posted by RodKirby
                  Avoiding all the technical stuff People in Oz consider...

                  Summer: Dec - Feb (Hot)
                  Autumn: Mar - May
                  Winter.: Jun - Aug (Cold)
                  Spring.: Sep - Nov

                  HTH
                  What would be the typical temps during these seasons, where you live? Hot hot and how cold does it get in summer/winter?

                  Comment

                  • Russianwolf
                    Veteran Member
                    • Jan 2004
                    • 3152
                    • Martinsburg, WV, USA.
                    • One of them there Toy saws

                    #10
                    the problem with definitions like number 3 and 4 are places at or near the equator. My wife swears up and down that they don't have Winter in Manilla.
                    Mike
                    Lakota's Dad

                    If at first you don't succeed, deny you were trying in the first place.

                    Comment

                    • crokett
                      The Full Monte
                      • Jan 2003
                      • 10627
                      • Mebane, NC, USA.
                      • Ryobi BT3000

                      #11
                      Originally posted by Russianwolf
                      the problem with definitions like number 3 and 4 are places at or near the equator. My wife swears up and down that they don't have Winter in Manilla.

                      They don't have winter is south Florida either. If you can wear shorts year round it is never winter.
                      David

                      The chief cause of failure in this life is giving up what you want most for what you want at the moment.

                      Comment

                      • RodKirby
                        Veteran Member
                        • Dec 2002
                        • 3136
                        • Melbourne, Victoria, Australia.
                        • Mao Shan TSC-10RAS

                        #12
                        Originally posted by cgallery
                        What would be the typical temps during these seasons, where you live? Hot hot and how cold does it get in summer/winter?
                        (In Melbourne) we are "lucky" - our weather is quite mild - year round.

                        In Summer (eg 2 weeks ago), it can get get to 105°F, but not for more than a day or two. Today's forecast is for 82°

                        In Winter it only gets about as low as 38°F.
                        Downunder ... 1" = 25.4mm

                        Comment

                        • JSCOOK
                          Senior Member
                          • Sep 2006
                          • 774
                          • Kitchener, Ontario, Canada
                          • Ryobi BT3100-1

                          #13
                          I just read this thread now, and I'm truely surprised and in no means being sarcastic ... but I was taught this stuff back in public school around Grade 6 and thought this was just common knowledge about the hemispheres and there related seasons and all ...

                          I'm guessing that this it could be because besides Canada, countries like Australia, New Zealand, Britian, South Africa, etc, are also part of "The Commonwealth of Nations", hence we are taught more about other countries than maybe in the US ... I dunno.

                          Learn something new all the time I guess ...
                          Last edited by JSCOOK; 01-31-2007, 04:44 PM.
                          "Experience: that most brutal of teachers. But you learn, my God do you learn". by C.S. Lewis

                          Comment

                          • siliconbauhaus
                            Senior Member
                            • Dec 2006
                            • 925
                            • hagerstown, md

                            #14
                            I noticed Rod gave the temps in farenheit which was nice.
                            パトリック
                            daiku woodworking
                            ^deshi^
                            neoshed

                            Comment

                            • RodKirby
                              Veteran Member
                              • Dec 2002
                              • 3136
                              • Melbourne, Victoria, Australia.
                              • Mao Shan TSC-10RAS

                              #15
                              Originally posted by siliconbauhaus
                              I noticed Rod gave the temps in farenheit which was nice.
                              I always convert for my metrically challenged friends

                              BTW ALT-0176 (numeric key pad) gives the degree char. °
                              Downunder ... 1" = 25.4mm

                              Comment

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