Recent Eurasian river discharge to the Arctic Ocean in the context of longer-term dendrohydrological records
Mapped correlations between annual discharges (AD 1938–1990) of the major Eurasian rivers entering the Arctic Ocean (Severnaya Dvina, Pechora, Ob', Yenisey, Lena, and Kolyma) demonstrate a positive relationship between discharge and the Palmer Drought Severity Index (PDSI) within the individual...
Published in: | Journal of Geophysical Research: Biogeosciences |
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Online Access: | https://hdl.handle.net/10669/29858 http://onlinelibrary.wiley.com/doi/10.1029/2006JG000333/full https://doi.org/10.1029/2006JG000333 |
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ftunivcostarica:oai:https://www.kerwa.ucr.ac.cr:10669/29858 2023-05-15T14:54:51+02:00 Recent Eurasian river discharge to the Arctic Ocean in the context of longer-term dendrohydrological records MacDonald, Glen M. Kremenetski, Konstantine V. Smith, Laurence C. Hidalgo León, Hugo G. 2007-12-29 application/pdf https://hdl.handle.net/10669/29858 http://onlinelibrary.wiley.com/doi/10.1029/2006JG000333/full https://doi.org/10.1029/2006JG000333 en_US eng http://onlinelibrary.wiley.com/doi/10.1029/2006JG000333/full 0148-0227 https://hdl.handle.net/10669/29858 doi:10.1029/2006JG000333 Journal of Geophysical Research; Volumen 112, Número G4. 2007 Eurasia Artics Rivers River discharge Dendrohydrology artículo científico 2007 ftunivcostarica https://doi.org/10.1029/2006JG000333 2022-10-30T05:50:55Z Mapped correlations between annual discharges (AD 1938–1990) of the major Eurasian rivers entering the Arctic Ocean (Severnaya Dvina, Pechora, Ob', Yenisey, Lena, and Kolyma) demonstrate a positive relationship between discharge and the Palmer Drought Severity Index (PDSI) within the individual basins and more distant areas. The relationship between recent discharge and PDSI supports the application of dendrohydrological modeling to produce reconstructions of discharge extending back before the 20th century. The dendrohydrologic models explain from 41% (Yenisey) to 55% (Pechora) of the observed variability of flow in the individual basins and 39% of the total combined discharge. Discharge reconstructions for the period AD 1800–1990 indicate that there is no long-term monotonic trend toward higher discharge over the past 200 years. Reconstructed annual discharge for the individual rivers and the total discharge from all the rivers experienced in the 20th century are within the bounds of natural variability experienced over the past 200 years. The S. Dvina, Pechora, Ob, and Kolyma reconstructions do display significant multidecadal variability in discharge similar to that observed in the North Atlantic, North Pacific, and Northern Hemisphere climatic parameters. Although the translation of such variability to the river discharges remains uncertain, the presence of multidecadal variability makes it more difficult to detect or ascribe annual discharge changes that may be attributable to global warming. Arctic System Science program/[ARC-023091]/ARCSS/Estados Unidos Universidad de Costa Rica//UCR/Costa Rica UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones Geofísicas (CIGEFI) Other/Unknown Material Arctic Arctic Ocean dvina Global warming North Atlantic Pechora Universidad de Costa Rica: Repositorio Kérwá Arctic Arctic Ocean Kolyma ENVELOPE(161.000,161.000,69.500,69.500) Pacific Severnaya Dvina ENVELOPE(40.494,40.494,64.532,64.532) Yenisey ENVELOPE(82.680,82.680,71.828,71.828) Journal of Geophysical Research: Biogeosciences 112 G4 n/a n/a |
institution |
Open Polar |
collection |
Universidad de Costa Rica: Repositorio Kérwá |
op_collection_id |
ftunivcostarica |
language |
English |
topic |
Eurasia Artics Rivers River discharge Dendrohydrology |
spellingShingle |
Eurasia Artics Rivers River discharge Dendrohydrology MacDonald, Glen M. Kremenetski, Konstantine V. Smith, Laurence C. Hidalgo León, Hugo G. Recent Eurasian river discharge to the Arctic Ocean in the context of longer-term dendrohydrological records |
topic_facet |
Eurasia Artics Rivers River discharge Dendrohydrology |
description |
Mapped correlations between annual discharges (AD 1938–1990) of the major Eurasian rivers entering the Arctic Ocean (Severnaya Dvina, Pechora, Ob', Yenisey, Lena, and Kolyma) demonstrate a positive relationship between discharge and the Palmer Drought Severity Index (PDSI) within the individual basins and more distant areas. The relationship between recent discharge and PDSI supports the application of dendrohydrological modeling to produce reconstructions of discharge extending back before the 20th century. The dendrohydrologic models explain from 41% (Yenisey) to 55% (Pechora) of the observed variability of flow in the individual basins and 39% of the total combined discharge. Discharge reconstructions for the period AD 1800–1990 indicate that there is no long-term monotonic trend toward higher discharge over the past 200 years. Reconstructed annual discharge for the individual rivers and the total discharge from all the rivers experienced in the 20th century are within the bounds of natural variability experienced over the past 200 years. The S. Dvina, Pechora, Ob, and Kolyma reconstructions do display significant multidecadal variability in discharge similar to that observed in the North Atlantic, North Pacific, and Northern Hemisphere climatic parameters. Although the translation of such variability to the river discharges remains uncertain, the presence of multidecadal variability makes it more difficult to detect or ascribe annual discharge changes that may be attributable to global warming. Arctic System Science program/[ARC-023091]/ARCSS/Estados Unidos Universidad de Costa Rica//UCR/Costa Rica UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones Geofísicas (CIGEFI) |
format |
Other/Unknown Material |
author |
MacDonald, Glen M. Kremenetski, Konstantine V. Smith, Laurence C. Hidalgo León, Hugo G. |
author_facet |
MacDonald, Glen M. Kremenetski, Konstantine V. Smith, Laurence C. Hidalgo León, Hugo G. |
author_sort |
MacDonald, Glen M. |
title |
Recent Eurasian river discharge to the Arctic Ocean in the context of longer-term dendrohydrological records |
title_short |
Recent Eurasian river discharge to the Arctic Ocean in the context of longer-term dendrohydrological records |
title_full |
Recent Eurasian river discharge to the Arctic Ocean in the context of longer-term dendrohydrological records |
title_fullStr |
Recent Eurasian river discharge to the Arctic Ocean in the context of longer-term dendrohydrological records |
title_full_unstemmed |
Recent Eurasian river discharge to the Arctic Ocean in the context of longer-term dendrohydrological records |
title_sort |
recent eurasian river discharge to the arctic ocean in the context of longer-term dendrohydrological records |
publishDate |
2007 |
url |
https://hdl.handle.net/10669/29858 http://onlinelibrary.wiley.com/doi/10.1029/2006JG000333/full https://doi.org/10.1029/2006JG000333 |
long_lat |
ENVELOPE(161.000,161.000,69.500,69.500) ENVELOPE(40.494,40.494,64.532,64.532) ENVELOPE(82.680,82.680,71.828,71.828) |
geographic |
Arctic Arctic Ocean Kolyma Pacific Severnaya Dvina Yenisey |
geographic_facet |
Arctic Arctic Ocean Kolyma Pacific Severnaya Dvina Yenisey |
genre |
Arctic Arctic Ocean dvina Global warming North Atlantic Pechora |
genre_facet |
Arctic Arctic Ocean dvina Global warming North Atlantic Pechora |
op_source |
Journal of Geophysical Research; Volumen 112, Número G4. 2007 |
op_relation |
http://onlinelibrary.wiley.com/doi/10.1029/2006JG000333/full 0148-0227 https://hdl.handle.net/10669/29858 doi:10.1029/2006JG000333 |
op_doi |
https://doi.org/10.1029/2006JG000333 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
112 |
container_issue |
G4 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1766326608313974784 |