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Richard S. Vachula
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A global database of Holocene paleotemperature records
D Kaufman, N McKay, C Routson, M Erb, B Davis, O Heiri, S Jaccard, ...
Scientific data 7 (1), 1-34, 2020
276*2020
Evidence of Ice Age humans in eastern Beringia suggests early migration to North America
RS Vachula, Y Huang, WM Longo, SG Dee, WC Daniels, JM Russell
Quaternary Science Reviews 205, 35-44, 2019
842019
Assessing the spatial fidelity of sedimentary charcoal size fractions as fire history proxies with a high-resolution sediment record and historical data
RS Vachula, JM Russell, Y Huang, N Richter
Palaeogeography, Palaeoclimatology, Palaeoecology 508, 166-175, 2018
552018
Systematic chemotaxonomic profiling and novel paleotemperature indices based on alkenones and alkenoates: Potential for disentangling mixed species input
Y Zheng, P Heng, MH Conte, RS Vachula, Y Huang
Organic Geochemistry 128, 26-41, 2019
452019
Informing sedimentary charcoal-based fire reconstructions with a kinematic transport model
RS Vachula, N Richter
The Holocene 28 (1), 173-178, 2018
442018
Correlation between the ratio of 5-methyl hexamethylated to pentamethylated branched GDGTs (HP5) and water depth reflects redox variations in stratified lakes
Y Yao, J Zhao, RS Vachula, JP Werne, J Wu, X Song, Y Huang
Organic Geochemistry 147, 104076, 2020
402020
A critical appraisal of charcoal morphometry as a paleofire fuel type proxy
RS Vachula, J Sae-Lim, R Li
Quaternary Science Reviews 262, 106979, 2021
392021
Assessing changes in global fire regimes
SS Sayedi, BW Abbott, B Vannière, B Leys, D Colombaroli, GG Romera, ...
Fire ecology 20 (1), 1-22, 2024
372024
Sedimentary biomarkers reaffirm human impacts on northern Beringian ecosystems during the Last Glacial period
RS Vachula, Y Huang, JM Russell, MB Abbott, MS Finkenbinder, ...
Boreas 49 (3), 514-525, 2020
352020
A meta-analytical approach to understanding the charcoal source area problem
RS Vachula
Palaeogeography, Palaeoclimatology, Palaeoecology 562, 110111, 2021
302021
Lake ecosystem on the Qinghai–Tibetan Plateau severely altered by climatic warming and human activity
J Liang, RL Lupien, H Xie, RS Vachula, MA Stevenson, BP Han, Q Lin, ...
Palaeogeography, Palaeoclimatology, Palaeoecology 576, 110509, 2021
282021
Sedimentary charcoal proxy records of fire in Alaskan tundra ecosystems
RS Vachula, J Sae-Lim, JM Russell
Palaeogeography, Palaeoclimatology, Palaeoecology 541, 109564, 2020
262020
A usage-based size classification scheme for sedimentary charcoal
RS Vachula
The Holocene 29 (3), 523-527, 2019
242019
Polar bears and ice: Cultural connotations of Arctic environments that contradict the science of climate change
AW Stenport, RS Vachula
Media, Culture & Society 39 (2), 282-295, 2017
242017
Calibration and application of branched GDGTs to Tibetan lake sediments: the influence of temperature on the fall of the Guge Kingdom in Western Tibet, China
J Liang, Y Guo, N Richter, H Xie, RS Vachula, RL Lupien, B Zhao, ...
Paleoceanography and Paleoclimatology 37 (5), e2021PA004393, 2022
232022
Phylogeny, alkenone profiles and ecology of Isochrysidales subclades in saline lakes: Implications for paleosalinity and paleotemperature reconstructions
Y Yao, J Zhao, RS Vachula, S Liao, G Li, EJ Pearson, Y Huang
Geochimica et Cosmochimica Acta 317, 472-487, 2022
232022
Climate exceeded human management as the dominant control of fire at the regional scale in California’s Sierra Nevada
RS Vachula, JM Russell, Y Huang
Environmental Research Letters 14 (10), 104011, 2019
232019
Spatially calibrating polycyclic aromatic hydrocarbons (PAHs) as proxies of area burned by vegetation fires: Insights from comparisons of historical data and sedimentary PAH fluxes
RS Vachula, AT Karp, EH Denis, NL Balascio, EA Canuel, Y Huang
Palaeogeography, Palaeoclimatology, Palaeoecology 596, 110995, 2022
222022
New insights into environmental controls on the occurrence and abundance of Group I alkenones and their paleoclimate applications: Evidence from volcanic lakes of northeastern …
Y Yao, J Zhao, WM Longo, G Li, X Wang, RS Vachula, KJ Wang, Y Huang
Earth and Planetary Science Letters 527, 115792, 2019
222019
Abrupt freshening since the early Little Ice Age in Lake Sayram of arid central Asia inferred from an alkenone isomer proxy
Y Yao, J Lan, J Zhao, RS Vachula, H Xu, Y Cai, H Cheng, Y Huang
Geophysical Research Letters 47 (16), e2020GL089257, 2020
212020
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Articles 1–20