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Datasets with PANGAEA technical keyword @margoForaminiferaR

Mostrando recursos 1 - 20 de 34

  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. 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...

  3. 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)....

  4. 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)....

  5. 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

  6. 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

  7. 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

  8. 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

  9. Compilation of Pacific Late Holocene planktic Foraminifera SST

    Kiefer, Thorsten; Chen, Min-Te

  10. Compilation of Pacific Late Holocene planktic Foraminifera SST

    Kiefer, Thorsten; Chen, Min-Te

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

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

    Barrows, Timothy T; Juggins, Steve

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

    Barrows, Timothy T; Juggins, Steve

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

    Barrows, Timothy T; Juggins, Steve

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

    Barrows, Timothy T; Juggins, Steve

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