Revisit the Medieval Warm Period and Little Ice Age in Proxy Records from Zemu Glacier Sediments, Eastern Himalaya
Vegetation and Climate Reconstruction
Bibliographic Data
| ID | 15801989 |
|---|---|
| Authors | Nivedita Mehrotra (0000-0003-3735-2838, Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226007, India), Nathani Basavaiah (Indian Institute of Geomagnetism), Santosh K Shah (0000-0002-1635-5936, Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow 226007, India, corresponding author) |
| Year | 2023 |
| Volume | 6 |
| Issue | 2 |
| Pages | 32-32 |
| Publication date | 2023-05-09 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Quaternary (JOURNAL) |
| Journal identifiers | ISSN: 2571-550X • E-ISSN: 2571-550X |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/quat6020032 |
| OpenAlex | W4382204628 |
| Language | EN |
| Citations received | 1 |
| References cited | 173 |
The Late Holocene fossil pollen records from the Zemu glacier, located in Yabuk, North Sikkim, in the eastern Himalayas, effectively generated quantitative climate reconstructions based on the transfer function model. The transfer function model was developed by establishing a modern pollen–climate calibration set from the temperate alpine belt of North Sikkim. A redundancy analysis was carried out to detect the pattern of variation of climatic variables in the modern pollen datasets. The mean annual precipitation (MAP) and mean temperature of the warming month (MTWA) had the strongest influence on the composition of the modern pollen samples among the climatic variables considered in the analysis. Proxy data in the form of fossil pollen records were analyzed for reconstructing past climate based upon the relationships between modern pollen vegetation assemblages and climatic patterns. Transfer functions for MAP and MTWA were developed with the partial least squares (PLS) approach, and model performance was assessed using leave-one-out cross-validation. The validated model was used to reconstruct MAP and MTWA for the last 2992 cal years BP (1042 BC) in North Sikkim. The variability observed in the reconstructions was analyzed for past global climatic events. It was further compared with the available regional and hemispheric proxy-based climate reconstructions. The reconstructions captured comparable Medieval Warm Period (MWP) and Little Ice Age (LIA)-like events from the Zemu glacier region. The fossil pollen data and climate reconstructions were further compared with the mineral magnetism data of the subsurface sediment profile
Climate change · Climate pattern · Climatology · Geography · Glacier · Holocene · Little ice age · Meteorology · Paleoclimatology · Physical geography · Pollen · Precipitation · Proxy (statistics · Temperate climate · Vegetation (pathology · Geology and Paleoclimatology Research · Landslides and related hazards · Tree-ring climate responses · Ecology · Geology · Oceanography
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| Unique citing works | 1 |
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| Citations per year | 1 |
| Citation span | 2025 - 2025 (1) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 1 |