Centennial-scale teleconnection between North Atlantic sea surface temperatures and the Indian summer monsoon during the Holocene

Zhang, Xiaojian; Jin, Liya; Jia, Wan-na

doi:10.1007/s00382-015-2771-2

Cited by 13 publications

(13 citation statements)

References 74 publications

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“…In addition, we would like to perform further comparisons between model results and proxy records to confirm our results as model-data comparisons can reduce the seasonal bias in proxy records Lohmann et al, 2013]. Mg/Ca records generally reveal warming trends in the subtropical and subpolar North Atlantic (north of 30°N) except the eastern part of the subtropical North Atlantic during the Holocene (Figure 1, Table 1), which fit well with modeled winter and spring SSTs (Figures 2a and 2b) but differ somewhat from summer SSTs [Zhang et al, 2015b] as estimated in the Kiel Climate Model (KCM) Holocene transient simulation (HT) simulation [Jin et al, 2014]. The warming trends in the subtropical and subpolar North Atlantic (north of 30°N) can be attributed to the increasing winter insolation ( Figure 3) [Liu et al, 2003;Came et al, 2007;Leduc et al, 2010].…”

Section: Sst Of the Subpolar North Atlantic Oceansupporting

confidence: 77%

Reply to comment by Rashid et al. on “Asynchronous variation in the East Asian winter monsoon during the Holocene”

2016

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Rashid et al. (2016) questioned the use of the Mg-/Ca-based sea surface temperature (SST) data from the subpolar North Atlantic Ocean as well as the alkenone-based SST data from the western tropical Indian Ocean we used to reflect the winter SSTs or regional changes in the Holocene SSTs. We first would like to reemphasize that the main message we wanted to convey in our article is that the East Asian winter monsoon (EAWM) strength decreased and then increased again during the Holocene but with a substantial lag in southern China as compared to northern China. We, of course, wanted to back up our model results with published SST data that may have detected such an asynchronous variation in the EAWM. For convenience, we used a series of proxy records extracted from the extended Global database for alkenone-derived HOlocene Sea-surface Temperature (GHOST) database that were initially intended to provide a template of Holocene SST trends for model/data comparison purpose (http://doi.pangaea.de/10.1594/PANGAEA.737370). Rashid et al. (2016) questioned our model/data comparison exercise, arguing that the data we present in Zhang et al. (2015a) cannot be used to track leads and lags in winter SSTs in the North Atlantic and northern Indian Ocean. Below we address point by point the issues raised by Rashid et al. (2016) and thank the authors for giving us the opportunity to sharpen our model/data comparison analysis.

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Section: Sst Of the Subpolar North Atlantic Oceansupporting

confidence: 77%

Reply to comment by Rashid et al. on “Asynchronous variation in the East Asian winter monsoon during the Holocene”

2016

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“…While in the northern part of the TP where the precipitation was dominated by the westerlies, Huang et al (2015) have found that the summer AMO index was significantly and positively correlated with summer precipitation (R 0.77, P < 0.01) as well. The connection of Atlantic SST variability, westerlies intensity and precipitation of the none-monsoon region of central Asia was reported (Li et al, 2008;Yu et al, 2014;Zhang et al, 2016;Luo et al, 2018). A positive or negative sign near the line between two variables indicates positive or negative correlations between them.…”

Section: Discussionmentioning

confidence: 89%

Local Climatic Factors Mediated Impacts of Large-Scale Climate Oscillations on the Growth of Vegetation Across the Tibetan Plateau

Zhang

Shen

Shi

et al. 2021

Front. Environ. Sci.

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Large-scale climate oscillations, particularly the Atlantic Multidecadal Oscillation (AMO) and the Pacific Decadal Oscillation (PDO), have widespread influences on climate systems across the Tibetan Plateau (TP). It is understudied how the temporal changes in AMO and PDO affected growth of vegetation through modifying the local climatic factors in different areas across the TP. We used the AMO and PDO indices, gridded growing season mean temperature (TGS), cumulative precipitation (PGS), and normalized difference vegetation index (NDVIGS) data from 1982 to 2015 to investigate the temporal trends of these variables and the correlations of the TGS and PGS with each of the AMO and PDO indices as well as their correlations with the NDVIGS. The results showed that the warming of the TGS over the TP and the increases of the PGS in western, central, and northeastern areas of the TP may have been related to an increase of the AMO index and a decrease of the PDO index. Combining those relationships with the spatial patterns of the TGS-NDVIGS and PGS-NDVIGS correlations suggested that the changes of the AMO and PDO may have indirectly increased the NDVIGS in the central and northeastern areas of the TP by increasing TGS and PGS, in most parts of the southwestern TP by increasing PGS, and in the eastern and south-central regions of the TP by increasing TGS. In contrast, the decrease of the NDVIGS in some areas of the southeastern and southwestern TP may have been associated with a negative effect of warming as a result of changes in the AMO and PDO. These results highlight the indirect impacts of changes in large-scale climate oscillations on the growth of vegetation through modification of local climatic factors across the TP, and they suggest the substantial spatial heterogeneity of these impacts largely depends on the responses of vegetation to local climatic factors.

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“…NEMO assumes 31 vertical levels. The KCM has been used for studies of internal climate variability (Park and Latif, 2008, 2010), external forced variability (Latif et al, 2009) and the Holocene Asian summer monsoon precipitation changes (Jin et al, 2014; Zhang et al, 2015). A detailed description of the KCM is given by Park et al (2009), including further information on the performance of the model.…”

Section: Methodsmentioning

confidence: 99%

Forcing mechanisms of orbital-scale changes in winter rainfall over northwestern China during the Holocene

et al. 2015

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The moisture history in arid central Asia (ACA) differs from that in the Asian monsoon region during the Holocene. Much less is known about causes of Holocene moisture changes in ACA than Asian monsoon precipitation changes, hampering our understanding of their spatiotemporal differences. In this study, orbital-scale evolution of winter rainfall in northwestern China (a part of the core zone in ACA) during the Holocene and possible driving mechanisms are investigated using results from a long-term transient simulation performed by an atmosphere–ocean–sea-ice coupled general circulation model, the Kiel Climate Model, forced by orbital variations. Our results reveal a persistent wetting trend in northwestern China in winter throughout the Holocene, which is in response to winter insolation at mid-northern latitudes. Winter insolation can influence the rainfall via three ways. First, increasing latitudinal gradient of the incoming solar insolation at mid-latitudes strengthens the westerly intensity. Second, the evaporation is enhanced because of insolation-induced winter temperature rising, resulting in an increase in the air humidity. Intensified westerly winds and the increased water vapour together are conductive to enhance moisture transport towards northwestern China and thus increase winter precipitation in this area. Third, the increasing trend of winter insolation weakens the East Asian winter monsoon, which is favourable for the formation of rainfall via crippling the Siberian High that is beneficial for atmospheric lifting motion.

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Centennial-scale teleconnection between North Atlantic sea surface temperatures and the Indian summer monsoon during the Holocene

Cited by 13 publications

References 74 publications

Reply to comment by Rashid et al. on “Asynchronous variation in the East Asian winter monsoon during the Holocene”

Reply to comment by Rashid et al. on “Asynchronous variation in the East Asian winter monsoon during the Holocene”

Local Climatic Factors Mediated Impacts of Large-Scale Climate Oscillations on the Growth of Vegetation Across the Tibetan Plateau

Forcing mechanisms of orbital-scale changes in winter rainfall over northwestern China during the Holocene

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