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Title: Regional character of the “global monsoon”: paleoclimate insights from Northwest Indian lacustrine sediments
Authors: Dixit, Yama
Keywords: Social sciences::Geography
Issue Date: 2020
Source: Dixit, Y. (2020). Regional character of the “global monsoon”: paleoclimate insights from Northwest Indian lacustrine sediments. Oceanography, 33(2), 56-64.
Journal: Oceanography 
Abstract: The concept of a “global monsoon” proposes that the annual insolation cycle and global-scale atmospheric circulation drive and synchronize regional mon-soons. However, model, proxy, and observational studies reveal differences in the regional variability of the summer monsoon and its direct response to solar forcing and glacial boundary conditions. Here, we focus on paleoenvironmental data derived from paleolake sediments in northwest India. These paleolakes straddle a precipitation gra-dient from sub-humid to semi-arid to arid plains and contain a wealth of information about summer monsoon variability at regional scale over the past 10,000 years. The paleolake records provide compelling evidence of significant regional differences in the timing of monsoon responses to orbital forcings; only sub-humid to semi-arid lakes resemble monsoon reconstructions from marine sediment and speleothem archives, while the arid region lakes contain regional hydroclimate histories. Extracting regional trends from the global signature of monsoon variability is necessary for understand-ing the regional impact of future climate warming on the monsoon system and human populations. The paleolakes in northwest India highlight the importance of con-sidering the specific location of archive and signal heterogeneity when interpret-ing monsoon records. Results indicate that detailed records are required from other monsoon regions to improve knowledge of the imprints of the complex monsoon system at regional scales.
ISSN: 1042-8275
DOI: 10.5670/oceanog.2020.206
Research Centres: Earth Observatory of Singapore 
Rights: © 2020 The Author(s). Published by Oceanography. This is an open access article made available under the terms of the Creative Commons Attribution 4.0 International License (, which permits use, sharing, adaptation, distribution, and reproduction in any medium or format as long as users cite the materials appropriately, provide a link to the Creative Commons license, and indicate the changes that were made to the original content. Images, animations, videos, or other third-party material used in articles are included in the Creative Commons license unless indicated otherwise in a credit line to the material. If the material is not included in the article’s Creative Commons license, users will need to obtain permission directly from the license holder to reproduce the material.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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