Odalys J. Ibarra-Alejos, Ricardo Sánchez-Murillo, Rene Ventura-Houle, Oscar Guevara Mansilla, Tomas Peña-Alonso, Bárbara A. Macías-Hernández, Luis González-Hita, Miguel A. Mejía-González
{"title":"墨西哥东北部热带风暴阿尔贝托的极端降雨贡献和同位素偏移","authors":"Odalys J. Ibarra-Alejos, Ricardo Sánchez-Murillo, Rene Ventura-Houle, Oscar Guevara Mansilla, Tomas Peña-Alonso, Bárbara A. Macías-Hernández, Luis González-Hita, Miguel A. Mejía-González","doi":"10.1002/rcm.10146","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Rationale</h3>\n \n <p>Tropical cyclones are critical extreme rainfall events that can temporarily mitigate drought impacts in semiarid regions. Despite the well-known North Atlantic hurricane season, the propagation of isotopically distinct rainfall pulses across semiarid landscapes of Mesoamerica is largely unknown.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>In June 2024, tropical storm (TS) Alberto made landfall in northeastern Mexico. This study evaluates TS Alberto's monthly and annual rainfall contribution across Tamaulipas and Nuevo León and the isotopic excursions (δ<sup>18</sup>O and <i>d</i>-excess) in precipitation and surface water. Rainfall data from 86 stations and high-frequency isotope samples from Ciudad Victoria, Tampico, Chetumal, and the San Marcos River were analyzed.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>Results show that TS Alberto produced unprecedented rainfall, ranging from 0.22 to 11.41 times the 10-year June average, and up to 123% of the annual average in orographically influenced regions (i.e., variation is based on 86 locations across the region). Reservoir data highlight a rapid hydrological recovery, with dam levels in Tamaulipas and Nuevo León increasing significantly within weeks. Rainfall isotopic composition exhibited a broad spectrum (δ<sup>18</sup>O: −15.82‰ to −2.80‰), reflecting varying moisture sources, convective activity, and orographic effects. TS Alberto reproduced nearly the entire annual δ<sup>18</sup>O variability within a few hours, underscoring the strong isotopic imprint of extreme events. During TS Alberto's landfall and passage, an inverse trend between δ<sup>18</sup>O and precipitation amount was observed.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>The storm's isotopic signature was traced into surface waters, providing evidence of rapid river response and potentially for aquifer recharge. These findings emphasize the dual hydrological and isotopic role of TCs in modulating water scarcity and improving hydroclimate reconstructions in drought-prone landscapes.</p>\n </section>\n </div>","PeriodicalId":225,"journal":{"name":"Rapid Communications in Mass Spectrometry","volume":"40 1","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/epdf/10.1002/rcm.10146","citationCount":"0","resultStr":"{\"title\":\"Extreme Rainfall Contribution and Isotopic Excursion of Tropical Storm Alberto in Northeastern Mexico\",\"authors\":\"Odalys J. Ibarra-Alejos, Ricardo Sánchez-Murillo, Rene Ventura-Houle, Oscar Guevara Mansilla, Tomas Peña-Alonso, Bárbara A. Macías-Hernández, Luis González-Hita, Miguel A. Mejía-González\",\"doi\":\"10.1002/rcm.10146\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Rationale</h3>\\n \\n <p>Tropical cyclones are critical extreme rainfall events that can temporarily mitigate drought impacts in semiarid regions. Despite the well-known North Atlantic hurricane season, the propagation of isotopically distinct rainfall pulses across semiarid landscapes of Mesoamerica is largely unknown.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>In June 2024, tropical storm (TS) Alberto made landfall in northeastern Mexico. This study evaluates TS Alberto's monthly and annual rainfall contribution across Tamaulipas and Nuevo León and the isotopic excursions (δ<sup>18</sup>O and <i>d</i>-excess) in precipitation and surface water. Rainfall data from 86 stations and high-frequency isotope samples from Ciudad Victoria, Tampico, Chetumal, and the San Marcos River were analyzed.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>Results show that TS Alberto produced unprecedented rainfall, ranging from 0.22 to 11.41 times the 10-year June average, and up to 123% of the annual average in orographically influenced regions (i.e., variation is based on 86 locations across the region). Reservoir data highlight a rapid hydrological recovery, with dam levels in Tamaulipas and Nuevo León increasing significantly within weeks. Rainfall isotopic composition exhibited a broad spectrum (δ<sup>18</sup>O: −15.82‰ to −2.80‰), reflecting varying moisture sources, convective activity, and orographic effects. TS Alberto reproduced nearly the entire annual δ<sup>18</sup>O variability within a few hours, underscoring the strong isotopic imprint of extreme events. 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Extreme Rainfall Contribution and Isotopic Excursion of Tropical Storm Alberto in Northeastern Mexico
Rationale
Tropical cyclones are critical extreme rainfall events that can temporarily mitigate drought impacts in semiarid regions. Despite the well-known North Atlantic hurricane season, the propagation of isotopically distinct rainfall pulses across semiarid landscapes of Mesoamerica is largely unknown.
Methods
In June 2024, tropical storm (TS) Alberto made landfall in northeastern Mexico. This study evaluates TS Alberto's monthly and annual rainfall contribution across Tamaulipas and Nuevo León and the isotopic excursions (δ18O and d-excess) in precipitation and surface water. Rainfall data from 86 stations and high-frequency isotope samples from Ciudad Victoria, Tampico, Chetumal, and the San Marcos River were analyzed.
Results
Results show that TS Alberto produced unprecedented rainfall, ranging from 0.22 to 11.41 times the 10-year June average, and up to 123% of the annual average in orographically influenced regions (i.e., variation is based on 86 locations across the region). Reservoir data highlight a rapid hydrological recovery, with dam levels in Tamaulipas and Nuevo León increasing significantly within weeks. Rainfall isotopic composition exhibited a broad spectrum (δ18O: −15.82‰ to −2.80‰), reflecting varying moisture sources, convective activity, and orographic effects. TS Alberto reproduced nearly the entire annual δ18O variability within a few hours, underscoring the strong isotopic imprint of extreme events. During TS Alberto's landfall and passage, an inverse trend between δ18O and precipitation amount was observed.
Conclusions
The storm's isotopic signature was traced into surface waters, providing evidence of rapid river response and potentially for aquifer recharge. These findings emphasize the dual hydrological and isotopic role of TCs in modulating water scarcity and improving hydroclimate reconstructions in drought-prone landscapes.
期刊介绍：
Rapid Communications in Mass Spectrometry is a journal whose aim is the rapid publication of original research results and ideas on all aspects of the science of gas-phase ions; it covers all the associated scientific disciplines. There is no formal limit on paper length ("rapid" is not synonymous with "brief"), but papers should be of a length that is commensurate with the importance and complexity of the results being reported. Contributions may be theoretical or practical in nature; they may deal with methods, techniques and applications, or with the interpretation of results; they may cover any area in science that depends directly on measurements made upon gaseous ions or that is associated with such measurements.
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