medieval writings link volcanic eruptions cold weather
Last Updated : GMT 06:49:16
Arab Today, arab today
Arab Today, arab today
Last Updated : GMT 06:49:16
Arab Today, arab today

Medieval writings link volcanic eruptions, cold weather

Arab Today, arab today

Arab Today, arab today Medieval writings link volcanic eruptions, cold weather

Cambridge - UPI

Medieval chronicles offer a look from the past to assess how volcanic eruptions affected the weather in Ireland for more than 1,200 years, scientists say. An international group of researchers assessed more than 40,000 written entries in the Irish Annals and compared them with measurements taken from ice cores to link the climatic consequences of volcanic eruptions to extreme cold weather events in Ireland for a 1200-year period from 431 to 1649, a study published in the journal Environmental Research Letters reported. Over this timescale as many as 48 explosive volcanic eruptions could be identified in Greenland ice cores that record the deposition of volcanic ash in annual layers of ice. Of those, 38 were associated closely in time with extreme cold events -- identified by systematically examining written entries in the Irish Annals and then picking out directly observed meteorological phenomena and conditions, such as heavy snowfall and frost, prolonged ice covering lakes and rivers, and contemporary descriptions of abnormally cold weather, researchers said. "It's clear that the scribes of the Irish Annals were diligent reporters of severe cold weather, most probably because of the negative impacts this had on society and the biosphere," lead study author Francis Ludlow from the Harvard University Center for the Environment and Department of History said. Volcanic eruptions can play a significant role in the regulation of Earth's climate through the injection into the stratosphere of sulphur dioxide gas, which is converted into sulphate aerosol particles that reflect incoming sunlight and result in an overall temporary cooling of the planet's surface. "Our major result is that explosive volcanic eruptions are strongly, and persistently, implicated in the occurrence of cold weather events over this long timescale in Ireland," Ludlow said. "In their severity, these events are quite rare for the country's mild maritime climate." The Irish Annals contain more than 1 million written words and about 40,000 distinct written entries, detailing major historical events on an annual basis.

arabstoday
arabstoday

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

medieval writings link volcanic eruptions cold weather medieval writings link volcanic eruptions cold weather

 



Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

medieval writings link volcanic eruptions cold weather medieval writings link volcanic eruptions cold weather

 



GMT 13:49 2017 Thursday ,08 June

Boko Haram kills 11 in NE Nigeria attacks: police

GMT 09:08 2017 Monday ,11 September

Palestinian court grants bail to prominent activist

GMT 00:06 2018 Wednesday ,24 January

Emirates signs agreement for 36 additional A380s

GMT 09:59 2018 Wednesday ,10 January

Pakistan reiterates solidarity with Saudi Arabia

GMT 23:01 2016 Wednesday ,30 November

21 killed in artillery shelling of eastern Aleppo

GMT 09:22 2016 Monday ,10 October

US troops in Kuwait came under 'suicide' attack

GMT 21:14 2017 Tuesday ,21 February

Tatas will lead, not follow

GMT 11:24 2017 Wednesday ,15 February

ISIS kidnapped 16 civilians from Anbar

GMT 19:30 2018 Wednesday ,31 October

King congratulates Antigua and Barbuda Governor-General

GMT 00:05 2017 Thursday ,28 December

Guterres extends mandate of UN-backed Lebanon tribunal
Arab Today, arab today
 
 Arab Today Facebook,arab today facebook  Arab Today Twitter,arab today twitter Arab Today Rss,arab today rss  Arab Today Youtube,arab today youtube  Arab Today Youtube,arab today youtube

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2025 ©

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2025 ©

arabstoday arabstoday arabstoday arabstoday
arabstoday arabstoday arabstoday
arabstoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
arabstoday, Arabstoday, Arabstoday