A5068301191- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Marine and environmental studies
- Methane Hydrates and Related Phenomena
- Geological and Geophysical Studies
- Marine Biology and Ecology Research
- Cryospheric studies and observations
- Climate variability and models
- Tree-ring climate responses
- Archaeology and ancient environmental studies
- Geological formations and processes
- Flood Risk Assessment and Management
- Landslides and related hazards
- Geological and Geochemical Analysis
- Pleistocene-Era Hominins and Archaeology
- Climate change and permafrost
- earthquake and tectonic studies
- Geomagnetism and Paleomagnetism Studies
- Pacific and Southeast Asian Studies
- Oceanographic and Atmospheric Processes
- Maritime and Coastal Archaeology
- Hydrology and Watershed Management Studies
- Paleontology and Stratigraphy of Fossils
- Groundwater and Isotope Geochemistry
- Geological Studies and Exploration
Indian Institute of Technology Kharagpur
2015-2024
Central Institute of Medicinal and Aromatic Plants
2018-2024
Academy of Scientific and Innovative Research
2024
Barkatullah University
2022-2024
National Institute of Disaster Management
2018-2023
Marymount University
2023
Council of Scientific and Industrial Research
2022
Alberta Environment and Protected Areas
2019-2022
Indian Institute of Technology Dhanbad
2022
Government of India
2022
Climate reconstructions reveal unprecedented warming in the past century; however, little is known about trends aspects such as monsoon. We reconstructed monsoon winds for 1000 years using fossil Globigerina bulloides abundance box cores from Arabian Sea and found that wind strength increased during four centuries Northern Hemisphere warmed. infer observed link between Eurasian snow cover southwest persists on a centennial scale. Alternatively, forcing implicated trend (volcanic aerosols,...
The large (8%) changes in the past seasonal insolation have a well‐documented influence on Indian summer monsoon. However, effect of small (<1%) decade to century scale solar variability is less certain. Evidence emerging that Earth's climate sensitive output centennial time during Holocene. Comparison recently published proxy record for sunspot activity with our newly‐revised higher‐resolution monsoon winds reveals multiple intervals weak Holocene at multidecadal scales. Weak correlate...
Abstract Speleothem proxy records from northeastern (NE) India reflect seasonal changes in Indian summer monsoon strength as well moisture source and transport paths. We have analyzed a new speleothem record Mawmluh Cave, Meghalaya, India, order to better understand these processes. The data show strong wet phase 33,500–32,500 years B.P. followed by weak/dry 26,000 23,500 very weak 17,000 15,000 suggests abrupt increase during the Bølling‐Allerød early Holocene periods pronounced weakening...
Research Article| January 01, 2003 Initiation of Northern Hemisphere glaciation and strengthening the northeast Indian monsoon: Ocean Drilling Program Site 758, eastern equatorial Anil K. Gupta; Gupta 1Department Geology Geophysics, Institute Technology, Kharagpur–721 302, W.B., India Search for other works by this author on: GSW Google Scholar Ellen Thomas 2Department Earth Environmental Sciences, Wesleyan University, Middletown, Connecticut 06459-0139, USA, Department Yale P.O. Box 208109,...
Research Article| September 01, 2004 Indian Ocean high-productivity event (10–8 Ma): Linked to global cooling or the initiation of monsoons? Anil K. Gupta; Gupta 1Department Geology and Geophysics, Institute Technology, Kharagpur-721 302, W.B., India Search for other works by this author on: GSW Google Scholar Raj Singh; Singh Sudheer Joseph; Joseph Ellen Thomas 2Department Earth Environmental Sciences, Wesleyan University, Middletown, Connecticut 06459-0139, USA, Department Yale P.O. Box...
As quantities and composition of municipal solid waste (MSW) vary significantly with seasons, a seasonal characterization study is critical for developing an efficient MSW management system. was characterized in three different seasons selecting appropriate treatment strategy Guwahati city. Results the shows that major components were organics (42.2%) plastic wastes (25.2%), which show high variations on basis (22-49%). The chemical revealed moisture content varies between 43.4% 58.3%, pH...
Knowledge of the biology deep‐sea benthic foraminifera was used to interpret results multivariate analyses (factor and cluster) on relative abundance data at Deep Sea Drilling Project Site 219 (southeastern Arabian Sea; 1764 m depth) in combination with carbon oxygen isotope data. Faunal document major changes ventilation productivity over past 5.5 Ma, including end Miocene‐Pliocene Indo‐Pacific “biogenic bloom” period ∼4.0 Ma. Interestingly, there is no simple correlation between high low...