Dynamic and thermodynamic influences on precipitation in Northeast Mexico on orbital to millennial timescales
Abstract The timing and mechanisms of past hydroclimate change in northeast Mexico are poorly constrained, limiting our ability to evaluate climate model performance. To address this, we present a multiproxy speleothem record of past hydroclimate variability spanning 62.5 to 5.1 ka from Tamaulipas,...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-37700-9 |
| _version_ | 1797840938470473728 |
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| author | Kevin T. Wright Kathleen R. Johnson Gabriela Serrato Marks David McGee Tripti Bhattacharya Gregory R. Goldsmith Clay R. Tabor Jean-Louis Lacaille-Muzquiz Gianna Lum Laura Beramendi-Orosco |
| author_facet | Kevin T. Wright Kathleen R. Johnson Gabriela Serrato Marks David McGee Tripti Bhattacharya Gregory R. Goldsmith Clay R. Tabor Jean-Louis Lacaille-Muzquiz Gianna Lum Laura Beramendi-Orosco |
| author_sort | Kevin T. Wright |
| collection | DOAJ |
| description | Abstract The timing and mechanisms of past hydroclimate change in northeast Mexico are poorly constrained, limiting our ability to evaluate climate model performance. To address this, we present a multiproxy speleothem record of past hydroclimate variability spanning 62.5 to 5.1 ka from Tamaulipas, Mexico. Here we show a strong influence of Atlantic and Pacific sea surface temperatures on orbital and millennial scale precipitation changes in the region. Multiple proxies show no clear response to insolation forcing, but strong evidence for dry conditions during Heinrich Stadials. While these trends are consistent with other records from across Mesoamerica and the Caribbean, the relative importance of thermodynamic and dynamic controls in driving this response is debated. An isotope-enabled climate model shows that cool Atlantic SSTs and stronger easterlies drive a strong inter-basin sea surface temperature gradient and a southward shift in moisture convergence, causing drying in this region. |
| first_indexed | 2024-04-09T16:22:55Z |
| format | Article |
| id | doaj.art-73250d2216924ec48b7c01382fcec2d7 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-09T16:22:55Z |
| publishDate | 2023-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-73250d2216924ec48b7c01382fcec2d72023-04-23T11:22:17ZengNature PortfolioNature Communications2041-17232023-04-0114111210.1038/s41467-023-37700-9Dynamic and thermodynamic influences on precipitation in Northeast Mexico on orbital to millennial timescalesKevin T. Wright0Kathleen R. Johnson1Gabriela Serrato Marks2David McGee3Tripti Bhattacharya4Gregory R. Goldsmith5Clay R. Tabor6Jean-Louis Lacaille-Muzquiz7Gianna Lum8Laura Beramendi-Orosco9Dept. of Earth System Science, University of California, Irvine, 3200 Croul HallDept. of Earth System Science, University of California, Irvine, 3200 Croul HallDepartment of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of TechnologyDepartment of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of TechnologyDepartment of Earth Sciences, Syracuse UniversitySchmid College of Science and Technology, Chapman UniversityDepartment of Geosciences, University of ConnecticutIndependent researcherDept. of Earth System Science, University of California, Irvine, 3200 Croul HallInstituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad deAbstract The timing and mechanisms of past hydroclimate change in northeast Mexico are poorly constrained, limiting our ability to evaluate climate model performance. To address this, we present a multiproxy speleothem record of past hydroclimate variability spanning 62.5 to 5.1 ka from Tamaulipas, Mexico. Here we show a strong influence of Atlantic and Pacific sea surface temperatures on orbital and millennial scale precipitation changes in the region. Multiple proxies show no clear response to insolation forcing, but strong evidence for dry conditions during Heinrich Stadials. While these trends are consistent with other records from across Mesoamerica and the Caribbean, the relative importance of thermodynamic and dynamic controls in driving this response is debated. An isotope-enabled climate model shows that cool Atlantic SSTs and stronger easterlies drive a strong inter-basin sea surface temperature gradient and a southward shift in moisture convergence, causing drying in this region.https://doi.org/10.1038/s41467-023-37700-9 |
| spellingShingle | Kevin T. Wright Kathleen R. Johnson Gabriela Serrato Marks David McGee Tripti Bhattacharya Gregory R. Goldsmith Clay R. Tabor Jean-Louis Lacaille-Muzquiz Gianna Lum Laura Beramendi-Orosco Dynamic and thermodynamic influences on precipitation in Northeast Mexico on orbital to millennial timescales Nature Communications |
| title | Dynamic and thermodynamic influences on precipitation in Northeast Mexico on orbital to millennial timescales |
| title_full | Dynamic and thermodynamic influences on precipitation in Northeast Mexico on orbital to millennial timescales |
| title_fullStr | Dynamic and thermodynamic influences on precipitation in Northeast Mexico on orbital to millennial timescales |
| title_full_unstemmed | Dynamic and thermodynamic influences on precipitation in Northeast Mexico on orbital to millennial timescales |
| title_short | Dynamic and thermodynamic influences on precipitation in Northeast Mexico on orbital to millennial timescales |
| title_sort | dynamic and thermodynamic influences on precipitation in northeast mexico on orbital to millennial timescales |
| url | https://doi.org/10.1038/s41467-023-37700-9 |
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