Late Quaternary High-Resolution Climate Archives in the Sahara

The lakes of Ounianga – Chad's first UNESCO World Heritage site

The 19 lakes of Ounianga in the hyperarid desert of northeastern Chad are the Sahara's most important relic from her early- to mid-Holocene humid past. They constitute a unique hydrological system within an exceptional natural landscape of great beauty with striking colours and shapes.

Following an initiative raised by S. Kröpelin in 1999, they have eventually been inscribed on the UNESCO World Heritage List July 1st, 2012 because of their Outstanding Universal Value. Chad – the fifth largest country on the African continent – now holds her first Heritage of Humanity that fills a regional gap the size of Western Europe. The local and national population are cheerful and proud about this new component of their cultural and national identity. The fragile ecology of the remote wetlands now enjoys national and international protection and attention.

The intention of the endeavours for conservation was to return something to the host country for the hospitality and excellent research opportunities in one of the least studied places on Earth by leaving more than scientific papers after the end of fieldwork in this outstanding area and to preserve it for future generations.

This success would not have been possible without the decade-long research and support by project A2 and its predecessors at the University of Cologne, all funded by the DFG, and the crucial cooperation and engagement of our counterpart institution, the Centre National d'Appui à la Recherche (CNAR) through its director Dr. Baba Mallaye.

 

A2-Kroepelin-Fig1w-lhk 250px
Location of the Ounianga Natural World Heritage site on the new UNESCO World Heritage Map.
  A2-Kroepelin-Fig2w-lhk 250pxLake Yoan, Ounianga Kebir.
Photo: Stefan Kröpelin
     

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Lake Uma, Ounianga Kebir.
Photo: Stefan Kröpelin

  A2-Kroepelin-Fig4w-lhk 250pxLakeTeli, Ounianga Serir.
Photo:
Stefan Kröpelin

Project

Project

Project A2
completed in 2017
(1st Phase) + (2nd Phase)

 

Principal Investigator:

Dr. Stefan Kröpelin
Prof. Dr. Bülent Tezkan
Prof. Dr. Martin Melles

 

Researcher:

Pritam Yogeshwar

 

PhD Candidate:

Jan Kuper
Marc Seidel

Raising the Sahara’s most complete climate record

Raising the Sahara’s most complete climate record

Coring the complete set of deposits at the bottom of a desert lake in northeast Chad in one of the driest and most isolated parts...

Exploring the subsurface – Geophysics in the Azraq...

Exploring the subsurface – Geophysics in the Azraq Basin, Northern Jordan

Non-invasive surface geophysical techniques are a useful tool to investigate the earth’s subsurface structure. In order to identif...

Advances in laboratory analyses of the Lake Yoa lo...

Advances in laboratory analyses of the Lake Yoa long core

While planned field work in Wadi Shati in Libya was impossible for obvious reasons, progress has been made on laboratory analyses...

Resolving sedimentary deposits in the Azraq Basin/...

Resolving sedimentary deposits in the Azraq Basin/Jordan using non-invasive geophysical techniques

A second geophysical field survey was undertaken in the Azraq Basin in October 2012.  

The lakes of Ounianga – Chad's first UNESCO World...

The lakes of Ounianga – Chad's first UNESCO World Heritage site

The 19 lakes of Ounianga in the hyperarid desert of northeastern Chad are the Sahara's most important relic from her early- to mid...

Into the Sahara Desert’s Deep Past. Expedition to...

Into the Sahara Desert’s Deep Past. Expedition to the Remote Tibesti Mountains

It is hard to believe: We have sent a probe 500 million km to a comet to analyze rock samples, but no geologist has yet dug his sp...

Applied Geophysics at Lake Chew Bahir, Southern Et...

Applied Geophysics at Lake Chew Bahir, Southern Ethiopia

In November/December 2014, four scientists from the Institute of Geophysics and Meteorology of the University of Cologne conducted...

Exploring sedimentary basins in the East-African R...

Exploring sedimentary basins in the East-African Rift Valley System

Three month after the first journey to Southern Ethiopia, a group of scientists from the Institute of Geophysics and Meteorology o...

Ennedi mission

Ennedi mission

In October 2015, A2 members followed an invitation for a field trip in the Ennedi massif of NE Chad. Main purpose was the evaluati...

The paradox of the Tibesti crater palaeolakes (Sah...

The paradox of the Tibesti crater palaeolakes (Sahara, Northwest Chad)

Recent field work in the Tibesti Mountains opens a new chapter in the reconstruction of the last climatic cycles in the central Sa...

Exhibition “Tibesti - Expedition in the Sahara” at...

Exhibition “Tibesti - Expedition in the Sahara” at the Kanzlergalerie

After the well-attended exhibitions on project A2’s geoarchaeological research and related World Heritage endeavours in Northern C...

Back from another mission in the Tibesti (Central...

Back from another mission in the Tibesti (Central Sahara)

A2 members just returned from another equally demanding as rewarding four-week expedition in the Tibesti mountains. The team compr...

The Ennedi Massif: Natural and cultural landscape...

The Ennedi Massif: Natural and cultural landscape – Chad’s second World Heritage site

18 years after an initiative taken by Stefan Kröpelin in 1999, UNESCO’s World Heritage Committee has unanimously inscribed the Enn...

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