HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Tibetan Plateau made central Asian drylands move northward, concentrate in narrow latitudinal bands, and increase in intensity during the Cenozoic

Abstract : The evolution of central Asian drylands during the Cenozoic is a hot topic in paleoclimate research, but the underlying mechanism remains unclear. Here, we investigate this topic with climate modeling based on six key geological periods. Our results indicate that central Asian drylands have existed since the early Eocene, after which they move northward and become narrower. Although changed land-sea distribution and decreased atmospheric CO2 concentration promote the aridification of drylands, they only slightly affect the latitudinal distribution of drylands. By comparison, the growth of Asian high-topography areas, especially the Tibetan Plateau (TP), makes central Asian drylands move northward, concentrate in narrow latitudinal bands, and increase in intensity. Good model-data qualitative agreement is obtained for stepwise aridification in midlatitude inland Asia north of ~40°N, and the uplifted main and northern TP by the early Miocene likely forced drylands to change in this region.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03542140
Contributor : Isabelle Dubigeon Connect in order to contact the contributor
Submitted on : Wednesday, February 2, 2022 - 11:01:03 AM
Last modification on : Wednesday, May 11, 2022 - 4:13:23 AM

File

Geophysical Research Letters -...
Files produced by the author(s)

Identifiers

Citation

Ran Zhang, Zhongshi Zhang, Dabang Jiang, Gilles Ramstein, Guillaume Dupont-Nivet, et al.. Tibetan Plateau made central Asian drylands move northward, concentrate in narrow latitudinal bands, and increase in intensity during the Cenozoic. Geophysical Research Letters, American Geophysical Union, 2022, 49 (3), pp.e2021GL093718. ⟨10.1029/2021gl093718⟩. ⟨insu-03542140v2⟩

Share

Metrics

Record views

72

Files downloads

46