Academic literature on the topic 'Paleo-proxy records'

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Journal articles on the topic "Paleo-proxy records"

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Feng, Xiangxiang, Yan Yang, Hai Cheng, et al. "The 7.2 ka climate event: Evidence from high-resolution stable isotopes and trace element records of stalagmite in Shuiming Cave, Chongqing, China." Holocene 30, no. 1 (2019): 145–54. http://dx.doi.org/10.1177/0959683619875809.

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Speleothem records have radically changed our understanding of the paleo Asian monsoon (AM), but explanations for Asian summer monsoon (ASM) variations in the Holocene period are usually based on single proxy records, such as oxygen isotope (δ18O). The application of multi-proxy records to the study of the forcing mechanism and internal structure of climate events is more comprehensive and accurate in the analysis of paleoclimates than using single proxy records. Therefore, a multi-proxy speleothem record of weak ASM events in 8.0–7.0 BP from Chongqing, which showed a dry southwestern China du
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Hoogakker, Babette A. A., Catherine Davis, Yi Wang, et al. "Reviews and syntheses: Review of proxies for low-oxygen paleoceanographic reconstructions." Biogeosciences 22, no. 4 (2025): 863–957. https://doi.org/10.5194/bg-22-863-2025.

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Abstract. A growing body of observations has revealed rapid changes in both the total inventory and the distribution of marine oxygen over the latter half of the 20th century, leading to increased interest in extending oxygenation records into the past. The use of paleo-oxygen proxies has the potential to extend the spatial and temporal range of current records, constrain pre-anthropogenic baselines, provide datasets necessary to test climate models under different boundary conditions, and ultimately understand how ocean oxygenation responds beyond decadal-scale changes. This review seeks to s
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Dolman, Andrew M., Torben Kunz, Jeroen Groeneveld, and Thomas Laepple. "A spectral approach to estimating the timescale-dependent uncertainty of paleoclimate records – Part 2: Application and interpretation." Climate of the Past 17, no. 2 (2021): 825–41. http://dx.doi.org/10.5194/cp-17-825-2021.

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Abstract. Proxy climate records are an invaluable source of information about the earth's climate prior to the instrumental record. The temporal and spatial coverage of records continues to increase; however, these records of past climate are associated with significant uncertainties due to non-climate processes that influence the recorded and measured proxy values. Generally, these uncertainties are timescale dependent and correlated in time. Accounting for structure in the errors is essential for providing realistic error estimates for smoothed or stacked records, detecting anomalies, and id
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McGregor, S., A. Timmermann, M. H. England, O. Elison Timm, and A. T. Wittenberg. "Inferred changes in El Niño-Southern Oscillation variance over the past six centuries." Climate of the Past Discussions 9, no. 3 (2013): 2929–66. http://dx.doi.org/10.5194/cpd-9-2929-2013.

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Abstract. It is vital to understand how the El Niño–Southern Oscillation (ENSO) has responded to past changes in natural and anthropogenic forcings, in order to better understand and predict its response to future greenhouse warming. To date, however, the instrumental record is too brief to fully characterize natural ENSO variability, while large discrepancies exist amongst paleo-proxy reconstructions of ENSO. These paleo-proxy reconstructions have typically attempted to reconstruct the full temporal variability of ENSO, rather than focusing simply on its variance. Here a new approach is devel
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Bracegirdle, Thomas J., Florence Colleoni, Nerilie J. Abram, et al. "Back to the Future: Using Long-Term Observational and Paleo-Proxy Reconstructions to Improve Model Projections of Antarctic Climate." Geosciences 9, no. 6 (2019): 255. http://dx.doi.org/10.3390/geosciences9060255.

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Quantitative estimates of future Antarctic climate change are derived from numerical global climate models. Evaluation of the reliability of climate model projections involves many lines of evidence on past performance combined with knowledge of the processes that need to be represented. Routine model evaluation is mainly based on the modern observational period, which started with the establishment of a network of Antarctic weather stations in 1957/58. This period is too short to evaluate many fundamental aspects of the Antarctic and Southern Ocean climate system, such as decadal-to-century t
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Verbitsky, Mikhail Y. "Inarticulate past: similarity properties of the ice–climate system and their implications for paleo-record attribution." Earth System Dynamics 13, no. 2 (2022): 879–84. http://dx.doi.org/10.5194/esd-13-879-2022.

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Abstract. Reconstruction and explanation of past climate evolution using proxy records is the essence of paleoclimatology. In this study, we use dimensional analysis of a dynamical model on orbital timescales to recognize theoretical limits of such forensic inquiries. Specifically, we demonstrate that major past events could have been produced by physically unsimilar processes making the task of paleo-record attribution to a particular phenomenon fundamentally difficult if not impossible. It also means that any future scenario may not have a unique cause and, in this sense, the orbital timesca
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Jalali, Bassem, Marie-Alexandrine Sicre, Julien Azuara, Violaine Pellichero, and Nathalie Combourieu-Nebout. "Influence of the North Atlantic subpolar gyre circulation on the 4.2 ka BP event." Climate of the Past 15, no. 2 (2019): 701–11. http://dx.doi.org/10.5194/cp-15-701-2019.

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Abstract. The 4.2 ka BP event, spanning from ca 4200 to 3900 cal BP, has been documented in numerous archaeological data and continental archives across the Northern Hemisphere as an abrupt shift to dry and cold climate. However, data on synchronous ocean circulation changes are notably lacking, thus preventing us from getting a full insight into the physical mechanisms responsible for this climate deterioration. Here, we present two high-resolution (5–20 years) sea surface temperature (SST) records from the subpolar gyre and off north Iceland in the vicinity of the polar front obtained from a
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Routson, Cody C., Darrell S. Kaufman, Nicholas P. McKay, et al. "A multiproxy database of western North American Holocene paleoclimate records." Earth System Science Data 13, no. 4 (2021): 1613–32. http://dx.doi.org/10.5194/essd-13-1613-2021.

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Abstract. Holocene climate reconstructions are useful for understanding the diverse features and spatial heterogeneity of past and future climate change. Here we present a database of western North American Holocene paleoclimate records. The database gathers paleoclimate time series from 184 terrestrial and marine sites, including 381 individual proxy records. The records span at least 4000 of the last 12 000 years (median duration of 10 725 years) and have been screened for resolution, chronologic control, and climate sensitivity. Records were included that reflect temperature, hydroclimate,
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McGregor, S., A. Timmermann, M. H. England, O. Elison Timm, and A. T. Wittenberg. "Inferred changes in El Niño–Southern Oscillation variance over the past six centuries." Climate of the Past 9, no. 5 (2013): 2269–84. http://dx.doi.org/10.5194/cp-9-2269-2013.

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Abstract. It is vital to understand how the El Niño–Southern Oscillation (ENSO) has responded to past changes in natural and anthropogenic forcings, in order to better understand and predict its response to future greenhouse warming. To date, however, the instrumental record is too brief to fully characterize natural ENSO variability, while large discrepancies exist amongst paleo-proxy reconstructions of ENSO. These paleo-proxy reconstructions have typically attempted to reconstruct ENSO's temporal evolution, rather than the variance of these temporal changes. Here a new approach is developed
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Konecky, Bronwen L., Nicholas P. McKay, Olga V. Churakova (Sidorova) та ін. "The Iso2k database: a global compilation of paleo-<i>δ</i><sup>18</sup>O and <i>δ</i><sup>2</sup>H records to aid understanding of Common Era climate". Earth System Science Data 12, № 3 (2020): 2261–88. http://dx.doi.org/10.5194/essd-12-2261-2020.

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Abstract. Reconstructions of global hydroclimate during the Common Era (CE; the past ∼2000 years) are important for providing context for current and future global environmental change. Stable isotope ratios in water are quantitative indicators of hydroclimate on regional to global scales, and these signals are encoded in a wide range of natural geologic archives. Here we present the Iso2k database, a global compilation of previously published datasets from a variety of natural archives that record the stable oxygen (δ18O) or hydrogen (δ2H) isotopic compositions of environmental waters, which
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Book chapters on the topic "Paleo-proxy records"

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Hahn, Annette, Enno Schefuß, Nicole Burdanowitz, et al. "Catchment and Depositional Studies for the Reconstruction of Past Environmental Change in Southern Africa." In Sustainability of Southern African Ecosystems under Global Change. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-10948-5_28.

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AbstractTerrestrial signals in marine sedimentary archives are often used for reconstructing past environments, vegetation and climate, as well as for determining sediment fluxes, pathways, and depositional sites and changes in erosional runoff. It is therefore important to understand the origin, transport, and depositional processes of the various terrestrial sedimentary components in a depositional system. In this chapter, we use examples from southern Africa to show how source-to-sink studies have led to a clearer interpretation of downcore proxy records. Twelve rivers in four river catchme
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Conference papers on the topic "Paleo-proxy records"

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Pandey, Chhavi P. "Study of spectro-temporal variation in paleo-climatic marine proxy records using wavelet transformations." In ADVANCEMENT IN MATHEMATICAL SCIENCES: Proceedings of the 2nd International Conference on Recent Advances in Mathematical Sciences and its Applications (RAMSA-2017). Author(s), 2017. http://dx.doi.org/10.1063/1.5008698.

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Elms, Hannah, та Alexander Dickson. "The DISTILL project: A δ114/110Cd paleo-proxy record for changes in the Earth’s ancient marine organic C cycle". У Goldschmidt2023. European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.19957.

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