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| Latest Neogene monsoon of the Chotanagpur Plateau, eastern India, as revealed by fossil leaf architectural signatures | |
| Hazra, Taposhi; Spicer, Robert A.; Hazra, Manoshi3; Mahato, Sumana; Spicer, Teresa E. V.; Bera, Subir4; Valdes, Paul J.; Farnsworth, Alexander5; Hughes, Alice C.; Jian, Yang6; Khan, Mahasin Ali | |
| 2020 | |
| Source Publication | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| ISSN | 0031-0182 |
| Volume | 545 |
| Abstract | A fossil leaf assemblage from latest Neogene (Pliocene) sediments exposed in Jharkhand of Chotonagpur Plateau, eastern India, is subjected to a CLAMP (Climate Leaf Analysis Multivariate Program) analysis using a new high spatial resolution (similar to 1 km(2)) WorldClim2 gridded climate data and PhysgAsia2 calibration. The CLAMP analysis of 80 different morphotypes of fossil leaves indicates a mean annual temperature (MAT) of 21.9 degrees C +/- 2.3 degrees C; a cold month mean temperature (CMMT) of 16.7 degrees C +/- 3.5 degrees C and a warm month mean temperature (WMMT) of 26.9 degrees C +/- 2.9 degrees C. Precipitation estimates have high uncertainties but suggest a weak monsoon with a growing season (11.7 +/- 1 months) precipitation (GSP) of 201.2 +/- 64.3 cm. The new calibration also provides for the first time in India more detailed insights into the hydrological regime through the return of annual and seasonal vapour pressure deficit (VPD) and potential evapotranspiration (PET) estimates, as well as new thermal overviews through measures of thermicity and growing degree days. The new results confirm the overall warmth of the region. Although rainfall estimates have large uncertainties due to year-round wet soils, measures of VPD and PET show persistent high humidity, but with higher evaporative stress in the summer during late Neogene times than now. |
| Keyword | Fossil leaves CLAMP Pliocene Environmental variables Precipitation seasonality Jharkhand |
| Subject Area | Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology |
| DOI | 10.1016/j.palaeo.2020.109641 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | SOUTH ASIAN MONSOON ; MAHUADANR VALLEY ; LATEHAR DISTRICT ; CHINA EVIDENCE ; CLIMATE ; SEDIMENTS ; SIWALIK ; FLORA ; PALEOCLIMATE ; JHARKHAND |
| WOS Research Area | Physical Geography ; Geology ; Paleontology |
| WOS ID | WOS:000526825900014 |
| Publisher | ELSEVIER |
| Subtype | Article |
| Publication Place | AMSTERDAM |
| EISSN | 1872-616X |
| Funding Organization | NERC/NSFC BETR Project [NE/P013805/1] |
| Corresponding Author Email | mahasin-ali-khan@skbu.ac.in |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ibcas.ac.cn/handle/2S10CLM1/21799 |
| Collection | 系统与进化植物学国家重点实验室 |
| Affiliation | 1.Sidho Kanho Birsha Univ, Dept Bot, Ranchi Rd, Purulia 723104, India 2.Spicer, Robert A.; Spicer, Teresa E. V.; Hughes, Alice C.] Chinese Acad Sci, Xishuangbanna Trop Bot Garden, CAS Key Lab Trop Forest Ecol, Mengla 666303, Peoples R China 3.Spicer, Robert A.] Open Univ, Sch Environm Earth & Ecosyst Sci, Milton Keynes MK7 6AA, Bucks, England 4.Presidency Univ, 86-1 Coll St,Calcutta Univ Rd, Kolkata 70073, West Bengal, India 5.Univ Calcutta, Dept Bot, Ctr Adv Study, 35 BC Rd, Kolkata 700019, India 6.Univ Bristol, Sch Geog Sci, Bristol BS8 1SS, Avon, England 7.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China |
| Recommended Citation GB/T 7714 | Hazra, Taposhi,Spicer, Robert A.,Hazra, Manoshi,et al. Latest Neogene monsoon of the Chotanagpur Plateau, eastern India, as revealed by fossil leaf architectural signatures[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,545. |
| APA | Hazra, Taposhi.,Spicer, Robert A..,Hazra, Manoshi.,Mahato, Sumana.,Spicer, Teresa E. V..,...&Khan, Mahasin Ali.(2020).Latest Neogene monsoon of the Chotanagpur Plateau, eastern India, as revealed by fossil leaf architectural signatures.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,545. |
| MLA | Hazra, Taposhi,et al."Latest Neogene monsoon of the Chotanagpur Plateau, eastern India, as revealed by fossil leaf architectural signatures".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 545(2020). |
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| File Name/Size | DocType | Version | Access | License | ||
| 1-s2.0-S003101822030（5279KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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