Late Holocene primary productivity and sea surface temperature variations in the northeastern Arabian Sea: Implications for winter monsoon variability

被引:34
|
作者
Boell, Anna [1 ]
Lueckge, Andreas [2 ]
Munz, Philipp [3 ]
Forke, Sven [4 ]
Schulz, Hartmut [3 ]
Ramaswamy, V. [5 ]
Rixen, Tim [1 ,4 ]
Gaye, Birgit [1 ]
Emeis, Kay-Christian [1 ,6 ]
机构
[1] Univ Hamburg, Inst Biogeochem & Marine Chem, Hamburg, Germany
[2] Bundesanstalt Geowissensch & Rohstoffe, Hannover, Germany
[3] Univ Tubingen, Dept Geosci, Tubingen, Germany
[4] Leibniz Ctr Trop Marine Ecol, Bremen, Germany
[5] Natl Inst Oceanog, Panaji, Goa, India
[6] Helmholtz Ctr Geesthacht, Inst Coastal Res, Geesthacht, Germany
来源
PALEOCEANOGRAPHY | 2014年 / 29卷 / 08期
关键词
OXYGEN MINIMUM ZONE; INTERTROPICAL CONVERGENCE ZONE; ASIAN SOUTHWEST MONSOON; INDIAN-OCEAN; ORGANIC-MATTER; CONTINENTAL-MARGIN; SUBSURFACE DENITRIFICATION; EXPORT PRODUCTION; ICE-AGE; SEDIMENTS;
D O I
10.1002/2013PA002579
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Variability in the oceanic environment of the Arabian Sea region is strongly influenced by the seasonal monsoon cycle of alternating wind directions. Prominent and well studied is the summer monsoon, but much less is known about late Holocene changes in winter monsoon strength with winds from the northeast that drive convective mixing and high surface ocean productivity in the northeastern Arabian Sea. To establish a high-resolution record of winter monsoon variability for the late Holocene, we analyzed alkenone-derived sea surface temperature (SST) variations and proxies of primary productivity (organic carbon and delta N-15) in a well-laminated sediment core from the Pakistan continental margin. Weak winter monsoon intensities off Pakistan are indicated from 400 B. C. to 250 A. D. by reduced productivity and relatively high SST. At about 250 A. D., the intensity of the winter monsoon increased off Pakistan as indicated by a trend to lower SST. We infer that monsoon conditions were relatively unstable from similar to 500 to 1300 A. D., because primary production and SST were highly variable. Declining SST and elevated biological production from 1400 to 1900 A. D. suggest invigorated convective winter mixing by strengthening winter monsoon circulation, most likely a regional expression of colder climate conditions during the Little Ice Age on the Northern Hemisphere. The comparison of winter monsoon intensity with records of summer monsoon intensity suggests that an inverse relationship between summer and winter monsoon strength exists in the Asian monsoon system during the late Holocene, effected by shifts in the Intertropical Convergence Zone.
引用
收藏
页码:778 / 794
页数:17
相关论文
共 50 条
  • [1] Asian winter monsoon controls marine primary productivity in north Arabian Sea during the Holocene
    Wu, Lanjun
    Li, Gang
    Zhu, Xiaowei
    Jia, Guodong
    Yan, Wen
    [J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 2024, 648
  • [2] Late Quaternary monsoon and productivity variability in the northwestern Arabian Sea
    Pathak, Vishwesh K.
    Kharwar, Ashish
    Rai, Ajai K.
    Das, Siddhartha S.
    [J]. CURRENT SCIENCE, 2020, 119 (11): : 1833 - 1838
  • [3] Variations of sea surface temperature and primary productivity during Heinrich and Dansgaard-Oeschger events in the northeastern Arabian Sea
    Schulte, S
    Müller, PJ
    [J]. GEO-MARINE LETTERS, 2001, 21 (03) : 168 - 175
  • [4] Variations of sea surface temperature and primary productivity during Heinrich and Dansgaard-Oeschger events in the northeastern Arabian Sea
    Sonja Schulte
    Peter J. Müller
    [J]. Geo-Marine Letters, 2001, 21 : 168 - 175
  • [5] Monsoon variability during late Pleistocene-Holocene in the southeastern Arabian Sea
    Chauhan, OS
    [J]. INDIAN JOURNAL OF MARINE SCIENCES, 1999, 28 (01): : 99 - 101
  • [6] Decadal variations of sea surface temperature in the eastern Arabian Sea and its impacts on the net primary productivity
    P. Vinaya Kumari
    K. S. Jayappa
    Sujitha Thomas
    Anurag Gupta
    [J]. Spatial Information Research, 2021, 29 : 137 - 148
  • [7] Decadal variations of sea surface temperature in the eastern Arabian Sea and its impacts on the net primary productivity
    Kumari, P. Vinaya
    Jayappa, K. S.
    Thomas, Sujitha
    Gupta, Anurag
    [J]. SPATIAL INFORMATION RESEARCH, 2021, 29 (02) : 137 - 148
  • [8] Contrasting sea surface temperature of summer and winter monsoon variability in the northern Arabian Sea over the last 25 ka
    Boell, Anna
    Schulz, Hartmut
    Munz, Philipp
    Rixen, Tim
    Gaye, Birgit
    Emeis, Kay-Christian
    [J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 2015, 426 : 10 - 21
  • [9] Holocene monsoon and sea level-related changes of sedimentation in the northeastern Arabian Sea
    Burdanowitz, Nicole
    Gaye, Birgit
    Hilbig, Lea
    Lahajnar, Niko
    Lueckge, Andreas
    Rixen, Tim
    Emeis, Kay-Christian
    [J]. DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 2019, 166 : 6 - 18
  • [10] New productivity in the eastern Arabian sea during winter monsoon
    Prakash, Satya
    Ramesh, R.
    [J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 2007, 71 (15) : A807 - A807