The year without summer

Unpredictably unstable lunations. …

Originally posted by wikipedia:

The Year Without a Summer was 1816. Severe summer climate abnormalities destroyed crops in Northern Europe, the North-eastern United States and eastern Canada.

Historian John D. Post called this "the last great subsistence crisis in the Western world".

Most consider the climate anomaly to have been caused by a combination of low solar activity and a volcanic winter event; the latter caused by a succession of major volcanic eruptions capped off by the Mount Tambora eruption of 1815, the largest known eruption in over 1,600 years.

http://en.wikipedia.org/wiki/Year_Without_a_Summer

But what caused all these events?
They don't "just" happen. Everything in physics and chemistry has to have a root cause.

The same is true in biology. If one of your ancestors was a monkey, so are you. Nothing changes radically to turn a monkey into a fish. Monkeys don't grow up and suddenly decide to marry fish. The general trend is for future mothers to want a future husband more resembling dear old dad.

And it is the same with the last of the magic sciences: earthquakes, windstorms, tidal waves and volcanoes.

If you'd like to see a comparison of some pretty difficult to decipher lunar phases,
read the comments.

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One thought on “The year without summer

  1. Originally posted by Wikipedia:

    It is now generally thought that the aberrations occurred because of the 1815 (April 5–15) volcanic Mount Tambora eruption[9][10] on the island of Sumbawa, Indonesia (then part of the Dutch East Indies).

    The eruption had a Volcanic Explosivity Index ranking of 7, a super-colossal event that ejected immense amounts of volcanic dust into the upper atmosphere. It was the world's largest eruption since the Hatepe eruption over 1,630 years earlier in 180 AD. (The Hatepe eruption of Lake Taupo, New Zealand was probably of similar size, see Supervolcano.)

    The fact that the 1815 eruption occurred during the middle of the Dalton Minimum (a period of unusually low solar activity) is also significant.

    Other large volcanic eruptions (with Volcanic Explosive Index at least 4) during the same time frame are:

    1812, La Soufrière on Saint Vincent in the Caribbean
    1812, Awu on Sangihe Islands, Indonesia
    1813, Suwanosejima on Ryukyu Islands, Japan
    1814, Mayon in the Philippines

    These other eruptions had already built up a substantial amount of atmospheric dust. As is common following a massive volcanic eruption, temperatures fell worldwide because less sunlight passed through the atmosphere.

    And here are the lunar phases for about that period:1811Jan 1 22:35Jan 9 16:24Jan 17 21:22Jan 24 17:58Jan 31 11:10Feb 8 11:41Feb 16 12:17Feb 23 04:17Mar 2 02:08Mar 10 06:29Mar 17 23:12Mar 24 14:18Mar 31 19:00Apr 8 23:05Apr 16 06:48Apr 23 00:17Apr 30 13:00May 8 12:35May 15 12:22May 22 10:38May 30 07:09Jun 6 23:06Jun 13 17:15Jun 20 22:03Jun 29 00:20Jul 6 07:30Jul 12 22:47Jul 20 11:10Jul 28 15:40Aug 4 14:59Aug 11 06:12Aug 19 02:15Aug 27 04:44Sept 2 22:35Sept 9 16:35Sept 17 18:52Sept 25 15:41Oct 2 07:05Oct 9 06:47Oct 17 11:54Oct 25 01:01Oct 31 17:03Nov 8 01:00Nov 16 04:13Nov 23 09:23Nov 30 04:58Dec 7 22:16Dec 15 19:07Dec 22 17:29Dec 29 19:141812Jan 6 20:24Jan 14 08:27Jan 21 02:01Jan 28 11:51Feb 5 16:54Feb 12 20:15Feb 19 11:42Feb 27 06:04Mar 6 10:00Mar 13 06:32Mar 19 23:08Mar 28 00:21Apr 4 23:08Apr 11 15:28Apr 18 12:40Apr 26 17:07May 4 08:34May 10 23:35May 18 04:12May 26 07:31Jun 2 15:07Jun 9 07:49Jun 16 21:07Jun 24 19:35Jul 1 19:56Jul 8 17:18Jul 16 14:30Jul 24 05:51Jul 31 00:24Aug 7 05:00Aug 15 07:31Aug 22 15:01Aug 29 06:02Sept 5 19:20Sept 13 23:34Sept 20 23:44Sept 27 14:22Oct 5 11:58Oct 13 14:11Oct 20 08:36Oct 27 02:36Nov 4 05:58Nov 12 03:00Nov 18 18:15Nov 25 19:07Dec 4 00:10Dec 11 13:44Dec 18 05:19Dec 25 15:071813Jan 2 17:26Jan 9 22:36Jan 16 18:14Jan 24 12:47Feb 1 08:50Feb 8 06:17Feb 15 08:58Feb 23 09:58Mar 2 21:43Mar 9 13:54Mar 17 00:56Mar 25 04:53Apr 1 07:59Apr 7 22:30Apr 15 17:19Apr 23 20:23Apr 30 16:11May 7 08:50May 15 09:21May 23 08:04May 29 23:18Jun 5 21:15Jun 14 00:32Jun 21 16:18Jun 28 06:29Jul 5 11:44Jul 13 14:29Jul 20 22:04Jul 27 14:49Aug 4 04:07Aug 12 03:02Aug 19 02:47Aug 26 01:10Sept 2 22:00Sept 10 14:10Sept 17 08:03Sept 24 14:03Oct 2 16:36Oct 10 00:19Oct 16 15:20Oct 24 05:40Nov 1 10:42Nov 8 10:07Nov 15 01:45Nov 22 23:45Dec 1 02:53Dec 7 20:17Dec 14 15:48Dec 22 19:14Dec 30 16:131814Jan 6 07:14Jan 13 09:12Jan 21 14:24Jan 29 02:36Feb 4 19:00Feb 12 04:59Feb 20 07:25Feb 27 10:39Mar 6 07:26Mar 14 01:39Mar 21 21:13Mar 28 17:27Apr 4 20:32Apr 12 21:24Apr 20 07:54Apr 27 00:03May 4 10:25May 12 14:37May 19 16:20May 26 07:28Jun 3 01:13Jun 11 04:26Jun 17 23:33Jun 24 16:34Jul 2 16:37Jul 10 14:59Jul 17 06:32Jul 24 04:09Aug 1 07:56Aug 8 22:59Aug 15 14:09Aug 22 18:48Aug 30 22:26Sept 7 05:32Sept 13 23:14Sept 21 12:34Sept 29 11:44Oct 6 11:47Oct 13 10:37Oct 21 08:33Oct 29 00:00Nov 4 18:48Nov 12 01:00Nov 20 05:01Nov 27 11:40Dec 4 03:35Dec 11 18:30Dec 20 00:03Dec 26 23:01 p1815Jan 2 14:56Jan 10 14:05Jan 18 16:13Jan 25 10:00Feb 1 05:16Feb 9 09:45Feb 17 04:59Feb 23 20:30Mar 2 22:21Mar 11 03:31Mar 18 14:28Mar 25 06:43Apr 1 17:11Apr 9 18:21Apr 16 21:21Apr 23 17:16May 1 12:14May 9 06:17May 16 02:43May 23 04:52May 31 06:02Jun 7 15:53Jun 14 07:52Jun 21 18:01Jun 29 21:44Jul 6 23:52Jul 13 14:17Jul 21 08:38Jul 29 11:08Aug 5 07:03Aug 11 23:18Aug 20 00:14Aug 27 22:23Sept 3 14:21Sept 10 11:57Sept 18 16:08Sept 26 07:49Oct 2 22:45Oct 10 04:31Oct 18 07:49Oct 25 15:53Nov 1 09:17Nov 9 00:17Nov 16 22:53Nov 23 23:19Nov 30 22:40Dec 8 21:42Dec 16 12:54Dec 23 07:08Dec 30 14:53 P1816Jan 7 18:48Jan 15 01:28Jan 21 16:25Jan 29 09:03Feb 6 13:43Feb 13 12:24Feb 20 03:55Feb 28 03:43Mar 7 05:07Mar 13 21:56Mar 20 17:49Mar 28 21:31Apr 5 16:26Apr 12 06:44Apr 19 09:36Apr 27 13:28May 5 00:05May 11 15:36May 19 02:31May 27 03:03Jun 3 05:16Jun 10 01:18Jun 17 19:48Jun 25 14:10Jul 2 09:31Jul 9 12:26Jul 17 12:51Jul 24 23:16Jul 31 14:31Aug 8 01:23Aug 16 05:02Aug 23 07:10Aug 29 21:43Sept 6 16:20Sept 14 19:42Sept 21 14:57Sept 28 08:16Oct 6 09:07Oct 14 08:21Oct 20 23:42Oct 27 22:41Nov 5 03:00Nov 12 18:54Nov 19 10:09Nov 26 16:52Dec 4 20:42Dec 12 03:46Dec 18 22:34Dec 26 13:53It will be a while before I have sorted the stuff out and looked at it. I am still organising the whole century copied from:http://eclipse.gsfc.nasa.gov/phase/phasecat.html

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