Isotopic variability (δ18O, δ2H and d-excess) during rainfall events of the north American monsoon across the Sonora River Basin, Mexico

Quezadas, Juan Pérez; Adams, D. K.; Sánchez‐Murillo, Ricardo; Lagunes, Alejandro Jiménez; Castañeda, José Luis Rodríguez

doi:10.1016/j.jsames.2020.102928

Cited by 8 publications

(11 citation statements)

References 40 publications

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“…The precipitationweighted isotope lapse rate (including all sites) resulted in a similar slope -2.10‰ in δ 18 O/ km (Adj.r 2 = 0.72, p-value <0.001). The lapse rate obtained in the isoscape modeling is -1.72 Overall, the rainfall isotopic composition within the NP agrees with previous LMWLs described for Chihuahua (northern Mexico), Tucson, Arizona [80,81], and the Sonora River basin [8]. In the GCS domain, isotope compositions were right skewed toward more enriched compositions.…”

Section: Regional Precipitation Amount and Isotope Relationshipssupporting

confidence: 84%

“…In the Northern Plateau, the NAMS is clearly depicted by greater precipitation amounts between June and September, with the largest terrestrial moisture input (20.5%) [60,86]. In the North Pacific region, the combination of tropical storms, monsoonal rainfall, and terrestrial sources governed precipitation inputs mainly between May and November [8,87]. The Northern Gulf region exhibited nearly uniform moisture contributions from the Pacific Ocean and terrestrial sources throughout the year, and a major input from the Gulf of Mexico basin (38.7%) from May to October [60,88].…”

Section: Plos Watermentioning

confidence: 99%

“…Historically, the use of water isotopes (δ 2 H, δ 18 O) in hydrogeological studies has been site-specific across Mexico, where 1-2 years or even seasonal local meteoric water lines (LMWLs) have often been used as valid input functions in central Mexico [1][2][3][4][5][6], in the northern arid landscapes [7][8][9], and in the southern coastal wet regions [10][11][12] to underpin rainfall to groundwater and surface water connectivity.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tracing isotope precipitation patterns across Mexico

Sánchez-Murillo,

González-Hita,

Mejía-González

et al. 2023

PLOS Water

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Mexico encompasses a large spectrum of landscapes with topographic, geographic, and climatic factors interacting in a complex ecohydrological setting. For decades, isotope hydrogeological tools have been applied in Mexico using short-term or seasonal local meteoric water lines as valid input functions. Yet, a systematic evaluation of meteoric isotope characteristics is still lacking. Here we report on the spatial and temporal isotope variations of 21 precipitation monitoring stations across Mexico. Our database includes 608 monthly samples collected from 2018 to 2021 over four regions (between 5 and 2,365 m asl): the Pacific coast, the Gulf of Mexico/Caribbean Sea region, and the Central and Northern plateaus. Precipitation δ18O seasonality from the dry (winter) to the wet season (summer) was characterized by a notable W-shaped variability. Monthly precipitation amounts and δ18O compositions exhibited poor to strong linear regressions (Adj. r2<0.01 to 0.75), with inverse (positive) relationships over the northern monsoon-affected region. Low d-excess (5.1 to 9.7‰) corresponded with greater terrestrial moisture contributions (20.5%) over the arid northern regions. Moisture inputs from the Gulf of Mexico/Caribbean Sea and the Pacific Ocean were associated with near-equilibrium or greater d-excess values (8.8 to 14.3‰), respectively. The best-fit linear models for δ18O (Adj. r2 = 0.85) and δ2H (Adj. r2 = 0.88) were determined for topographic and geographical predictors, resulting in an updated high-resolution precipitation isoscape (100 m2 grid) for Mexico. Orographic barriers (-2.10‰ in δ18O/km) coupled with the interaction of tropical cyclones and cold fronts, the evolution of the North American Monsoon system, and the passage of easterly trade winds play a remarkable role in controlling the spatial isotope rainfall variability. Our findings provide a robust baseline for ecohydrological, climatic, forensic, archeological, and paleoclimate studies in North America.

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Section: Regional Precipitation Amount and Isotope Relationshipssupporting

confidence: 84%

Section: Plos Watermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tracing isotope precipitation patterns across Mexico

Sánchez-Murillo,

González-Hita,

Mejía-González

et al. 2023

PLOS Water

View full text Add to dashboard Cite

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“…Where precipitation amount and elevation correlations do exist in the NN data, our analysis suggests they are often associated with variation in post‐condensation evaporation. Sub‐cloud evaporation of falling raindrops is common in a wide range of meteorological settings characterized by low near‐surface humidity and/or rainfall rates (Mix et al., 2019; Rindsberger et al., 1990; Worden et al., 2007) and its isotopic expression has previously been documented with the NAM (Quezadas et al., 2021). Our data, interpreted via the iSW E analysis approach, suggest that the level of evaporation‐drive enrichment of heavy isotopes in rainfall may vary systematically across seasons and sites.…”

Section: Discussionmentioning

confidence: 99%

Stable Isotopes in Precipitation and Meteoric Water: Sourcing and Tracing the North American Monsoon in Arizona, New Mexico, and Utah

Tulley-Cordova

Putman

Bowen

2021

Water Resources Research

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The North American Monsoon (NAM) is an important source of precipitation across the southwestern United States. The approximate northern boundary of this feature crosses the Navajo Nation (NN), in the Four Corners region, where NAM rains have long been important to the livelihoods of Native Americans. Relatively little is known about the characteristics and hydrological significance of the NAM in this region. Here, we report a new 4 yr record of stable H and O isotope ratios in monsoon‐season rainfall and water resources across the NN. Monthly precipitation samples collected at 39 sites document a characteristic pattern of 2H‐ and 18O‐enrichment associated with monsoonal precipitation. These changes are weakly correlated with local precipitation amount, however, and the correlation that does exist is dominated by sub‐cloud evaporation effects. In contrast to precipitation amount, monsoon‐season isotopic values exhibited little spatial variability across the region, and after correction for sub‐cloud evaporation NN values were similar to those from a site in southern Arizona. Airmass back trajectory analysis suggests that the uniformly high NAM precipitation water isotope ratios across the region may reflect (a) a region‐wide shift from mid‐latitude to low‐latitude moisture sources at the onset of the peak monsoon, and (b) substantial land‐surface recycling of NAM moisture in upwind regions. Comparison of precipitation water isotope data with surface and groundwater values implies that, despite its hydroclimatic significance, monsoon rainfall contributes little to subsurface water resources. This highlights the monsoon's importance for warm‐season land‐surface ecology and hydrology critical to residents in the Four Corners region.

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“…The deuterium excess (D‐excess, D‐excess = δ 2 H – 8 × δ 18 O) is primarily influenced by the evaporative conditions at the moisture source region, including factors such as sea‐surface temperature, humidity, and wind speed (Frohlich et al ., 2002; Quezadas et al ., 2021). The D‐excesses observed in this study varied from −31.32‰ to 20.52‰, with a mean value of 2.26‰.…”

Section: Resultsmentioning

confidence: 99%

Compositions of hydrogen and oxygen isotopes of precipitation in Xiamen, southeast China coast: Seasonal variations, synoptic processes, and typhoons impact

Lin,

Li,

Wang

et al. 2023

Quart J Royal Meteoro Soc

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In this study, the δ2H and δ18O values of 162 precipitation samples (including 33 typhoon‐related samples), collected in Xiamen, southeast China coast, during June 2018 to August 2019, were investigated and analysed. The findings indicate an obvious seasonal variation in the δ2H and δ18O, primarily influenced by the East Asia Monsoon system with notable impact from typhoon occurrences during summer months. The synoptic time‐series variation of δ2H and δ18O exhibits greater complexity: three distinct types of isotopic variations were observed, indicating a clear influence from re‐evaporation processes and continuing equilibrium fractionation during condensation. The variation patterns of δ2H and δ18O were dominated by the local meteorological parameters that govern the re‐evaporation, whereas the overall isotopic composition of precipitation was primarily regulated by the moisture sources. The unique atmospheric structure and dynamic processes of typhoons led to a three‐stage variation of δ2H and δ18O in precipitation as the distance between the typhoon's centre and the study area changed. The consistent configuration of typhoon structure prompts analogous staged changes in different typhoon‐related precipitation. The trajectory of moisture source for typhoon‐related precipitation demonstrates a clear spiral structure (excluding typhoon Yutu), revealing notable impacts from typhoon events.

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Isotopic variability (δ18O, δ2H and d-excess) during rainfall events of the north American monsoon across the Sonora River Basin, Mexico

Cited by 8 publications

References 40 publications

Tracing isotope precipitation patterns across Mexico

Tracing isotope precipitation patterns across Mexico

Stable Isotopes in Precipitation and Meteoric Water: Sourcing and Tracing the North American Monsoon in Arizona, New Mexico, and Utah

Compositions of hydrogen and oxygen isotopes of precipitation in Xiamen, southeast China coast: Seasonal variations, synoptic processes, and typhoons impact

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