A5052125687- Geology and Paleoclimatology Research
- Geological Studies and Exploration
- Marine and environmental studies
- Climate change and permafrost
- Methane Hydrates and Related Phenomena
- Isotope Analysis in Ecology
- Soil and Environmental Studies
- Archaeology and ancient environmental studies
- Ecology and biodiversity studies
- Aquatic and Environmental Studies
- Pleistocene-Era Hominins and Archaeology
- Diatoms and Algae Research
- Geological formations and processes
- Pacific and Southeast Asian Studies
- Cryospheric studies and observations
- Marine Toxins and Detection Methods
- Image Processing and 3D Reconstruction
- Microbial Community Ecology and Physiology
- Tree-ring climate responses
- Marine and coastal ecosystems
- Geological Formations and Processes Exploration
- Ancient and Medieval Archaeology Studies
- Geochemistry and Geologic Mapping
- Protist diversity and phylogeny
- Peatlands and Wetlands Ecology
Herzen University
2014-2023
Kazan Federal University
2017-2023
Institute of Geography
2018-2021
University of Wisconsin System
2020
Planetary Science Institute
2018
University of Arizona
2018
Institute of Water Problems of the North Karelian Research Centre
2018
Russian Academy of Sciences
2015
Institute of Archaeology and Ethnography
2014
A comprehensive database of paleoclimate records is needed to place recent warming into the longer-term context natural climate variability. We present a global compilation quality-controlled, published, temperature-sensitive proxy extending back 12,000 years through Holocene. Data were compiled from 679 sites where time series cover at least 4000 years, are resolved sub-millennial scale (median spacing 400 or finer) and have one age control point every 3000 with cut-off values slackened in...
Abstract. Rapidly changing climate in the Northern Hemisphere and associated socio-economic impacts require reliable understanding of lake systems as important freshwater resources sensitive sentinels environmental change. To better understand time-series data sediment cores, it is necessary to gain information on within-lake spatial variabilities indicator data. Therefore, we retrieved a set 38 samples from surface along habitat gradients boreal, deep, yet pristine Lake Bolshoe Toko...
The Kamyshovoye Lake sedimentary record in the southeastern Baltic Sea region was studied to reconstruct climatic fluctuations and abiotic responses them during Lateglacial Early Holocene. New results from chironomid, isotopic, palaeomagnetic geochemical data analyses were correlated with earlier evidence of lithological palynological changes record. section that covered interval between 15 200 6500 cal. a BP . Palaeoclimatic reconstructions showed Younger Dryas there two‐step decrease mean...
The diatom oxygen isotope composition (δ18Odiatom) from lacustrine sediments helps tracing the hydrological and climate dynamics in individual lake catchments, is generally linked to changes temperature δ18Olake. Lake Bolshoye Shchuchye (67°53′N; 66°19′ E; 186 m a.s.l) largest deepest freshwater reservoir Polar Urals, Arctic Russia. interpretation supported by modern (isotope) hydrology, local bioindicators such as chironomids, mass-balance modelling a digital elevation model of catchment....
Abstract Ground ice and sedimentary records of a pingo exposure reveal insights into Holocene permafrost, landscape climate dynamics. Early to mid‐Holocene thermokarst lake deposits contain rich floral faunal paleoassemblages, which indicate shrinkage decreasing summer temperatures (chironomid‐based T July ) from 10.5 3.5 cal kyr BP with the warmest period between 8 BP. Talik refreezing growth started about after disappearance lake. The isotopic composition (δ 18 O − 17.1 ± 0.6‰, δD −144.5...
Millennial-scale climate change history in eastern Siberia and relationships between diatom diversity, paleoclimate, sediment-geochemical lake system trajectories are still poorly understood. This study investigates multi-proxy time series reaching back to the Late Pleistocene derived from radiocarbon dated Lake Bolshoe Toko sediment cores, southeastern Yakutia, Russia. We analyzed diatoms, elements (XRF), minerals (XRD), grain-size, organic carbon, included chironomid analyses published...
Abstract The Holocene evolution of climate in easternmost Fennoscandia and adjoining regions is poorly known, compared with to the west. To address this, a 224-cm-long sediment core from Lake Medvedevskoe, situated on Central Upland Karelian Isthmus, northwestern Russia, was examined investigate variations climate. Analyses indicate that dry cold late Pleistocene replaced by warmer more humid early after ca. 10.5 cal ka BP. During Holocene, lake transitioned an oligotrophic mesotrophic...
Late Pleistocene permafrost of the Yedoma type constitutes a valuable paleo-environmental archive due to presence numerous and well-preserved floral faunal fossils. The study fossil inventory allows for qualitative quantitative reconstructions past ecosystem climate conditions variations over time. Here, we present results combined paleo-proxy studies including pollen, chironomid, diatom mammal analyses from prominent cliff on Sobo-Sise Island in eastern Lena Delta, NE Siberia complement...
ABSTRACT Because continuous and high‐resolution records are scarce in the polar Urals, a multiproxy study was carried out on 54 m long sediment succession (Co1321) from Lake Bolshoye Shchuchye. The sedimentological, geochemical, pollen chironomid data suggest that glaciers occupied lake's catchment during cold dry MIS 2 document change ice extent around 23.5–18 cal ka bp. Subsequently, meltwater input, supply erosional activity decreased as local progressively melted. vegetation lake...
The Kamchatka Peninsula (Russian Far East) remains among the least studied regions of eastern Asia. Recent studies revealed a high degree palaeoenvironmental variability between different parts peninsula. We investigated semi‐aquatic (chironomids) and terrestrial (leaf wax biomarkers) proxies from sediment core collected Lake Sokoch (southern Kamchatka) to provide reconstruction mean July air temperature variations in limnic conditions. lake formed after 10.0 cal. ka BP as result postglacial...
ABSTRACT Continuous pollen and chironomid records from Lake Emanda (65°17′N, 135°45′E) provide new insights into the Late Quaternary environmental history of Yana Highlands (Yakutia). Larch forest with shrubs (alders, pines, birches) dominated during deposition lowermost sediments suggesting its Early Weichselian [Marine Isotope Stage (MIS) 5] age. Pollen‐ chironomid‐based climate reconstructions suggest July temperatures ( T ) slightly lower than modern. Gradually increasing amounts herb...
Abstract. Rapidly changing climate in the northern hemisphere and associated socio-economic impacts require reliable understanding of lake systems as important freshwater resources sensitive sentinels environmental changes. To better understand time-series data sediment cores it is necessary to gain information on within-lake spatial variabilities indicator data. Therefore, we retrieved a set 38 samples from surface along habitat gradients boreal, deep, yet pristine Lake Bolshoe Toko...
Although extensive archeological research works have been conducted in the Serteya region recent years, Holocene climate history Western Dvina Lakeland Russia is still poorly understood. The Neolithic human occupation of Serteyka lake–river system responded to oscillations, resulting development a pile-dwelling settlement between 5.9 and 4.2 ka cal BP. In this paper, we present quantitative paleoclimatic reconstructions Northgrippian stage (8.2–4.2 BP) from Great Palaeolake Basin. were...