Possible ENSO signals prior to the Last Glacial Maximum, during the last deglaciation and the early Holocene, from New Zealand
Annually laminated lake sediments from a maar crater in Auckland, New Zealand, were analyzed spectrally for three time slices: just prior to the last glacial maximum (LGM), during the deglaciation and during the early Holocene. Strong spectral power in 2-7 year, 9-30 year and a centennial (80-120 ye...
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:190873 2023-05-15T13:55:43+02:00 Possible ENSO signals prior to the Last Glacial Maximum, during the last deglaciation and the early Holocene, from New Zealand Pepper A. C. Shulmeister, J. Nobes, D. C. Augustinus, P. A. 2004-08-11 https://espace.library.uq.edu.au/view/UQ:190873 eng eng American Geophysical Union (AGU) doi:10.1029/2004GL020236 issn:0094-8276 orcid:0000-0001-5863-9462 climate oscillation variability paleoclimate Auckland record tephra age BP 050205 Environmental Management Journal Article 2004 ftunivqespace https://doi.org/10.1029/2004GL020236 2020-08-04T15:29:30Z Annually laminated lake sediments from a maar crater in Auckland, New Zealand, were analyzed spectrally for three time slices: just prior to the last glacial maximum (LGM), during the deglaciation and during the early Holocene. Strong spectral power in 2-7 year, 9-30 year and a centennial (80-120 year) timescale prior to the LGM and during two brief intervals in the deglaciation contrasts with virtually no spectral power during the rest of the deglaciation and during the early Holocene. The Antarctic Cold Reversal (ACR)appears to be the younger deglacial event. The results indicate that El Nino Southern Oscillation (ENSO) and possibly the Inter-decadal Pacific Oscillation (IPO), operated in a modern mode prior to the LGM, pulsed on and off during the deglaciation and were suppressed or absent from northern New Zealand during the early Holocene. The ACR was a period of enhanced southwesterly flow over northern New Zealand. Article in Journal/Newspaper Antarc* Antarctic The University of Queensland: UQ eSpace Antarctic The Antarctic Pacific New Zealand Geophysical Research Letters 31 15 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
climate oscillation variability paleoclimate Auckland record tephra age BP 050205 Environmental Management |
spellingShingle |
climate oscillation variability paleoclimate Auckland record tephra age BP 050205 Environmental Management Pepper A. C. Shulmeister, J. Nobes, D. C. Augustinus, P. A. Possible ENSO signals prior to the Last Glacial Maximum, during the last deglaciation and the early Holocene, from New Zealand |
topic_facet |
climate oscillation variability paleoclimate Auckland record tephra age BP 050205 Environmental Management |
description |
Annually laminated lake sediments from a maar crater in Auckland, New Zealand, were analyzed spectrally for three time slices: just prior to the last glacial maximum (LGM), during the deglaciation and during the early Holocene. Strong spectral power in 2-7 year, 9-30 year and a centennial (80-120 year) timescale prior to the LGM and during two brief intervals in the deglaciation contrasts with virtually no spectral power during the rest of the deglaciation and during the early Holocene. The Antarctic Cold Reversal (ACR)appears to be the younger deglacial event. The results indicate that El Nino Southern Oscillation (ENSO) and possibly the Inter-decadal Pacific Oscillation (IPO), operated in a modern mode prior to the LGM, pulsed on and off during the deglaciation and were suppressed or absent from northern New Zealand during the early Holocene. The ACR was a period of enhanced southwesterly flow over northern New Zealand. |
format |
Article in Journal/Newspaper |
author |
Pepper A. C. Shulmeister, J. Nobes, D. C. Augustinus, P. A. |
author_facet |
Pepper A. C. Shulmeister, J. Nobes, D. C. Augustinus, P. A. |
author_sort |
Pepper A. C. |
title |
Possible ENSO signals prior to the Last Glacial Maximum, during the last deglaciation and the early Holocene, from New Zealand |
title_short |
Possible ENSO signals prior to the Last Glacial Maximum, during the last deglaciation and the early Holocene, from New Zealand |
title_full |
Possible ENSO signals prior to the Last Glacial Maximum, during the last deglaciation and the early Holocene, from New Zealand |
title_fullStr |
Possible ENSO signals prior to the Last Glacial Maximum, during the last deglaciation and the early Holocene, from New Zealand |
title_full_unstemmed |
Possible ENSO signals prior to the Last Glacial Maximum, during the last deglaciation and the early Holocene, from New Zealand |
title_sort |
possible enso signals prior to the last glacial maximum, during the last deglaciation and the early holocene, from new zealand |
publisher |
American Geophysical Union (AGU) |
publishDate |
2004 |
url |
https://espace.library.uq.edu.au/view/UQ:190873 |
geographic |
Antarctic The Antarctic Pacific New Zealand |
geographic_facet |
Antarctic The Antarctic Pacific New Zealand |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
doi:10.1029/2004GL020236 issn:0094-8276 orcid:0000-0001-5863-9462 |
op_doi |
https://doi.org/10.1029/2004GL020236 |
container_title |
Geophysical Research Letters |
container_volume |
31 |
container_issue |
15 |
_version_ |
1766262543289942016 |