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Datasets with PANGAEA technical keyword @margoForaminiferaR

Mostrando recursos 1 - 16 de 16

  1. Glacial Mediterranean sea surface tempertures based on planktonic foraminiferal assemblages

    Hayes, Angela; Kucera, Michal; Kallel, Nejib; Sbaffi, Laura; Rohling, Eelco J
    We present a new reconstruction of Mediterranean sea surface temperatures (SST) during the last glacial maximum (LGM). A calibration data set based on census counts of 23 species of planktonic foraminifera in 129 North Atlantic and 145 Mediterranean core top samples was used to develop summer, winter and annual average SST reconstructions using artificial neural networks (ANNs) and the revised analogue method (RAM). Prediction errors determined by cross-validation of the calibration data set ranged between 0.5 and 1.1 °C, with both techniques being most successful in predicting winter SSTs. Glacial reconstructions are based on a new, expanded data set of...

  2. Reconstruction of sea-surface temperatures from asseblages of planktonic foraminifera

    Kucera, Michal; Weinelt, Mara; Kiefer, Thorsten; Pflaumann, Uwe; Hayes, Angela; Weinelt, Martin; Chen, Min-Te; Mix, Alan C; Barrows, Timothy T; Cortijo, Elsa; Duprat, Josette M; Juggins, Steve; Waelbroeck, Claire
    We present a conceptual framework for a new approach to environmental calibration of planktonic foraminifer census counts. This approach is based on simultaneous application of a variety of transfer function techniques, which are trained on geographically constrained calibration data sets. It serves to minimise bias associated with the presence of cryptic species of planktonic foraminifera and provides an objective tool for assessing reliability of environmental estimates in fossil samples, allowing identification of adverse effects of no-analog faunas and technique-specific bias. We have compiled new calibration data sets for the North (N=862) and South (N=321) Atlantic and the Pacific Ocean (N=1111)....

  3. Compilation of planktic Foraminifera census data, LGM from the Atlantic Ocean

    Kucera, Michal; Weinelt, Mara; Kiefer, Thorsten; Pflaumann, Uwe; Hayes, Angela; Weinelt, Martin; Chen, Min-Te; Mix, Alan C; Barrows, Timothy T; Cortijo, Elsa; Duprat, Josette M; Juggins, Steve; Waelbroeck, Claire

  4. Compilation of planktic Foraminifera census data, LGM from the Pacific Ocean

    Kucera, Michal; Weinelt, Mara; Kiefer, Thorsten; Pflaumann, Uwe; Hayes, Angela; Weinelt, Martin; Chen, Min-Te; Mix, Alan C; Barrows, Timothy T; Cortijo, Elsa; Duprat, Josette M; Juggins, Steve; Waelbroeck, Claire

  5. Compilation of Pacific Late Holocene planktic Foraminifera SST

    Kiefer, Thorsten; Chen, Min-Te

  6. Compilation of planktic Foraminifera census data, LGM and SSTs from the Pacific Ocean

    Kucera, Michal; Weinelt, Mara; Kiefer, Thorsten; Pflaumann, Uwe; Hayes, Angela; Weinelt, Martin; Chen, Min-Te; Mix, Alan C; Barrows, Timothy T; Cortijo, Elsa; Duprat, Josette M; Juggins, Steve; Waelbroeck, Claire

  7. Compilation of LGM planktic Foraminifera SSTs from the Atlantic Ocean

    Kucera, Michal; Weinelt, Mara; Kiefer, Thorsten; Pflaumann, Uwe; Hayes, Angela; Weinelt, Martin; Chen, Min-Te; Mix, Alan C; Barrows, Timothy T; Cortijo, Elsa; Duprat, Josette M; Juggins, Steve; Waelbroeck, Claire

  8. Compilation of planktic foraminifera census data, modern from the Atlantic Ocean

    Kucera, Michal; Weinelt, Mara; Kiefer, Thorsten; Pflaumann, Uwe; Hayes, Angela; Weinelt, Martin; Chen, Min-Te; Mix, Alan C; Barrows, Timothy T; Cortijo, Elsa; Duprat, Josette M; Juggins, Steve; Waelbroeck, Claire

  9. Compilation of planktic foraminifera LGM assembages from the Indo-Pacific Ocean

    Barrows, Timothy T; Juggins, Steve

  10. Compilation of planktic foraminifera LGM SST data from the Indo-Pacific Ocean

    Barrows, Timothy T; Juggins, Steve

  11. Compilation of planktic foraminifera modern data from the Indo-Pacific Ocean

    Barrows, Timothy T; Juggins, Steve
    We present new last glacial maximum (LGM) sea-surface temperature (SST) maps for the oceans around Australia based on planktonic foraminifera assemblages. To provide the most reliable SST estimates we use the modern analog technique, the revised analog method, and artificial neural networks in conjunction with an expanded modern core top database. All three methods produce similar quality predictions and the root mean squared error of the consensus prediction (the average of the three) under cross-validation is only ±0.77 °C. We determine LGM SST using data from 165 cores, most of which have good age control from oxygen isotope stratigraphy and...

  12. Compilation of planktic foraminifera LGM assembages from the Mediterranean Sea

    Hayes, Angela; Kucera, Michal; Kallel, Nejib; Sbaffi, Laura; Rohling, Eelco J

  13. Compilation of planktic foraminifera LGM SST data from the Mediterranean Sea

    Hayes, Angela; Kucera, Michal; Kallel, Nejib; Sbaffi, Laura; Rohling, Eelco J

  14. Compilation of planktic foraminifera modern data from the Mediterranean Sea

    Hayes, Angela; Kucera, Michal; Kallel, Nejib; Sbaffi, Laura; Rohling, Eelco J

  15. Distribution of planktic foraminifera in surface sediments of the Atlantic Ocean (ATL947)

    Pflaumann, Uwe; Sarnthein, Michael; Chapman, Mark R; de Abreu, Lucia; Funnell, Brian M; Hüls, Matthias; Kiefer, Thorsten; Maslin, Mark A; Prahl, Frederick G; Swallow, John; van Kreveld, Shirley A; Vautravers, Maryline J; Vogelsang, Elke; Weinelt, Mara

  16. Sea surface temperatures of the last glacial maximum, GLAMAP

    Pflaumann, Uwe; Sarnthein, Michael; Chapman, Mark R; de Abreu, Lucia; Funnell, Brian M; Hüls, Matthias; Kiefer, Thorsten; Maslin, Mark A; Prahl, Frederick G; Swallow, John; van Kreveld, Shirley A; Vautravers, Maryline J; Vogelsang, Elke; Weinelt, Mara

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