Filling the Atlantic coastal tree-ring reconstruction gap: A 195-year record of growing season discharge of the Sainte-Anne River, Gaspésie, Québec, Canada
Study region: We present a coastal river reconstruction between the Hudson River and north-central Québec, filling a substantial hiatus between 41° N and 53° N along the Atlantic North American margin, and adding to the four existing Atlantic coastal river basins with reconstructions. Study focus: T...
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2025-04-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581825000539 |
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| author | A.V. Pace J.-M. St-Jacques D.D. Noel G. Fortin |
| author_facet | A.V. Pace J.-M. St-Jacques D.D. Noel G. Fortin |
| author_sort | A.V. Pace |
| collection | DOAJ |
| description | Study region: We present a coastal river reconstruction between the Hudson River and north-central Québec, filling a substantial hiatus between 41° N and 53° N along the Atlantic North American margin, and adding to the four existing Atlantic coastal river basins with reconstructions. Study focus: This study produced a 195-year tree-ring based reconstruction of growing season flow of the Sainte-Anne River, Gaspésie, Québec, Canada. Our nested reconstruction (maximum R2 = 0.53, maximum RE = 0.32) was based upon eight site chronologies where snowpack limits the length of the growing season. New hydrological insights for the region: We found declining extreme May-July flows since 1937, suggesting a reduction of snowpack in this alpine region in the northern Appalachians. Our Gaspésie reconstruction showed droughts and pluvials in common with multi-centennial river/moisture reconstructions along the Atlantic Seaboard from New York, Delaware and Maryland and from north-central Québec. A principal components analysis (PCA) and correlation analysis with GRUN (the 5°x5° gridded multi-model ensemble of runoff of Ghiggi et al. (2019. Earth Syst. Sci. Data. 11, (1655–1674) showed common modes of variability through-out this broader region. While energy-limited tree-ring chronologies are well-known in western North America, they are poorly known in eastern North America. We found energy-limited snow proxy sites in this region noted for its high snowfall. This reconstruction may prove useful for wildlife, fisheries and hydroelectric reservoir management. |
| format | Article |
| id | doaj-art-5dc07cb6c9dc4be49fb5949d7c58f84e |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
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| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-5dc07cb6c9dc4be49fb5949d7c58f84e2025-02-12T05:31:08ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-04-0158102229Filling the Atlantic coastal tree-ring reconstruction gap: A 195-year record of growing season discharge of the Sainte-Anne River, Gaspésie, Québec, CanadaA.V. Pace0J.-M. St-Jacques1D.D. Noel2G. Fortin3Geography, Planning and Environment, Concordia University, Montréal, Québec H3G 1M8, Canada; Corresponding authors.Geography, Planning and Environment, Concordia University, Montréal, Québec H3G 1M8, Canada; Corresponding authors.Geography, Planning and Environment, Concordia University, Montréal, Québec H3G 1M8, CanadaDépartement d′histoire et de géographie, Université de Moncton, Moncton, New Brunswick E1A 3E9, CanadaStudy region: We present a coastal river reconstruction between the Hudson River and north-central Québec, filling a substantial hiatus between 41° N and 53° N along the Atlantic North American margin, and adding to the four existing Atlantic coastal river basins with reconstructions. Study focus: This study produced a 195-year tree-ring based reconstruction of growing season flow of the Sainte-Anne River, Gaspésie, Québec, Canada. Our nested reconstruction (maximum R2 = 0.53, maximum RE = 0.32) was based upon eight site chronologies where snowpack limits the length of the growing season. New hydrological insights for the region: We found declining extreme May-July flows since 1937, suggesting a reduction of snowpack in this alpine region in the northern Appalachians. Our Gaspésie reconstruction showed droughts and pluvials in common with multi-centennial river/moisture reconstructions along the Atlantic Seaboard from New York, Delaware and Maryland and from north-central Québec. A principal components analysis (PCA) and correlation analysis with GRUN (the 5°x5° gridded multi-model ensemble of runoff of Ghiggi et al. (2019. Earth Syst. Sci. Data. 11, (1655–1674) showed common modes of variability through-out this broader region. While energy-limited tree-ring chronologies are well-known in western North America, they are poorly known in eastern North America. We found energy-limited snow proxy sites in this region noted for its high snowfall. This reconstruction may prove useful for wildlife, fisheries and hydroelectric reservoir management.http://www.sciencedirect.com/science/article/pii/S2214581825000539Tree-ring based river reconstructionSoutheastern QuébecDroughtPluvialEnergy-limited tree-ring chronologiesApril 1 SWE |
| spellingShingle | A.V. Pace J.-M. St-Jacques D.D. Noel G. Fortin Filling the Atlantic coastal tree-ring reconstruction gap: A 195-year record of growing season discharge of the Sainte-Anne River, Gaspésie, Québec, Canada Journal of Hydrology: Regional Studies Tree-ring based river reconstruction Southeastern Québec Drought Pluvial Energy-limited tree-ring chronologies April 1 SWE |
| title | Filling the Atlantic coastal tree-ring reconstruction gap: A 195-year record of growing season discharge of the Sainte-Anne River, Gaspésie, Québec, Canada |
| title_full | Filling the Atlantic coastal tree-ring reconstruction gap: A 195-year record of growing season discharge of the Sainte-Anne River, Gaspésie, Québec, Canada |
| title_fullStr | Filling the Atlantic coastal tree-ring reconstruction gap: A 195-year record of growing season discharge of the Sainte-Anne River, Gaspésie, Québec, Canada |
| title_full_unstemmed | Filling the Atlantic coastal tree-ring reconstruction gap: A 195-year record of growing season discharge of the Sainte-Anne River, Gaspésie, Québec, Canada |
| title_short | Filling the Atlantic coastal tree-ring reconstruction gap: A 195-year record of growing season discharge of the Sainte-Anne River, Gaspésie, Québec, Canada |
| title_sort | filling the atlantic coastal tree ring reconstruction gap a 195 year record of growing season discharge of the sainte anne river gaspesie quebec canada |
| topic | Tree-ring based river reconstruction Southeastern Québec Drought Pluvial Energy-limited tree-ring chronologies April 1 SWE |
| url | http://www.sciencedirect.com/science/article/pii/S2214581825000539 |
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