Featured Research

from universities, journals, and other organizations

Ancient Arabic writings help scientists piece together past climate

Date:
February 26, 2012
Source:
Wiley-Blackwell
Summary:
Ancient manuscripts written by Arab scholars can provide valuable meteorological information to help modern scientists reconstruct the climate of the past, a new study has revealed. The research analyses the writings of scholars, historians and diarists in Iraq during the Islamic Golden Age between 816-1009 AD for evidence of abnormal weather patterns.

Ancient manuscripts written by Arab scholars can provide valuable meteorological information to help modern scientists reconstruct the climate of the past, a new study has revealed. The research, published in Weather, analyses the writings of scholars, historians and diarists in Iraq during the Islamic Golden Age between 816-1009 AD for evidence of abnormal weather patterns.

Reconstructing climates from the past provides historical comparison to modern weather events and valuable context for climate change. In the natural world trees, ice cores and coral provide evidence of past weather, but from human sources scientists are limited by the historical information available.

Until now researchers have relied on official records detailing weather patterns including air force reports during WW2 and 18th century ship's logs. Now a team of Spanish scientists from the Universidad de Extremadura have turned to Arabic documentary sources from the 9th and 10th centuries (3rd and 4th in the Islamic calendar). The sources, from historians and political commentators of the era, focus on the social and religious events of the time, but do refer to abnormal weather events.

"Climate information recovered from these ancient sources mainly refers to extreme events which impacted wider society such as droughts and floods," said lead author Dr Fernando Domínguez-Castro. "However, they also document conditions which were rarely experienced in ancient Baghdad such as hailstorms, the freezing of rivers or even cases of snow."

Baghdad was a centre for trade, commerce and science in the ancient Islamic world. In 891 AD Berber geographer al-Ya'qubi wrote that the city had no rival in the world, with hot summers and cold winters, climatic conditions which favored strong agriculture.

While Baghdad was a cultural and scientific hub many ancient documents have been lost to a history of invasions and civil strife. However, from the surviving works of writers including al-Tabari (913 AD), Ibn al-Athir (1233 AD) and al-Suyuti (1505 AD) some meteorological information can be rescued.

When collated and analysed the manuscripts revealed an increase of cold events in the first half of the 10th century. This included a significant drop of temperatures during July 920 AD and three separate recordings of snowfall in 908, 944 and 1007.

In comparison the only record of snow in modern Baghdad was in 2008, a unique experience in the living memories of Iraqis. "These signs of a sudden cold period confirm suggestions of a temperature drop during the tenth century, immediately before the Medieval Warm Period," said Domínguez-Castro. "We believe the drop in July 920 AD may have been linked to a great volcanic eruption but more work would be necessary to confirm this idea."

The team believes the sources show Iraq to have experienced a greater frequency of significant climate events and severe cold weather than today. While this study focused on Iraq it demonstrates the wider potential for reconstructing the climate from an era before meteorological instruments and formal records.

"Ancient Arabic documentary sources are a very useful tool for finding eye witness descriptions which support the theories made by climate models," said Domínguez-Castro. "The ability to reconstruct past climates provides us with useful historical context for understanding our own climate. We hope this potential will encourage Arabic historians and climatologists to work together to increase the climate data rescued from across the Islamic world."


Story Source:

The above story is based on materials provided by Wiley-Blackwell. Note: Materials may be edited for content and length.


Journal Reference:

  1. F. Dominguez-Castro, J. M. Vaquero, M. Marin, M. C. Gallego, R. Garcia-Herrera. How useful could Arabic documentary sources be for reconstructing past climate. Weather, 2012 DOI: 10.1002/wea.835

Cite This Page:

Wiley-Blackwell. "Ancient Arabic writings help scientists piece together past climate." ScienceDaily. ScienceDaily, 26 February 2012. <www.sciencedaily.com/releases/2012/02/120226225956.htm>.
Wiley-Blackwell. (2012, February 26). Ancient Arabic writings help scientists piece together past climate. ScienceDaily. Retrieved September 16, 2014 from www.sciencedaily.com/releases/2012/02/120226225956.htm
Wiley-Blackwell. "Ancient Arabic writings help scientists piece together past climate." ScienceDaily. www.sciencedaily.com/releases/2012/02/120226225956.htm (accessed September 16, 2014).

Share This



More Earth & Climate News

Tuesday, September 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) — Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) — A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Researchers Explore Shipwrecks Off Calif. Coast

Researchers Explore Shipwrecks Off Calif. Coast

AP (Sep. 16, 2014) — Federal researchers are exploring more than a dozen underwater sites where they believe ships sank in the treacherous waters west of San Francisco in the decades following the Gold Rush. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Isolated N. Korea Asks For International Help With Volcano

Isolated N. Korea Asks For International Help With Volcano

Newsy (Sep. 16, 2014) — Mount Paektu volcano in North Korea is showing signs of life and there's not much known about it. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

More Coverage


Arabic Records Allow Past Climate to Be Reconstructed

Apr. 30, 2012 — Corals, trees and marine sediments, among others, are direct evidence of the climate of the past, but they are not the only indicators. Scientists have now interpreted records written in Iraq by ... read more
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

      Technology News



      Save/Print:
      Share:  

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile iPhone Android Web
      Follow Facebook Twitter Google+
      Subscribe RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins