نتایج جستجو برای: LMWL

تعداد نتایج: 25  

2017
Martina Burnik Šturm Oyunsaikhan Ganbaatar Christian C. Voigt Petra Kaczensky

For certain remote areas like Mongolia, field-based precipitation, surface and ground water isotopic data are scarce. So far no such data exist for the Mongolian Gobi desert, which hinders the understanding of isotopic fractionation processes in this extreme, arid region. We collected 26 event-based precipitation samples, 39 Bij river samples, and 75 samples from other water bodies in the Dzung...

Journal: :Earth System Science Data 2022

Abstract. The paper presents a new local meteoric water line (LMWL) of stable oxygen and hydrogen isotopes in precipitation from Inuvik the western Canadian Arctic. Data were obtained over 37 months between August 2015 2018 resulting 134 measurements isotopic composition both types precipitation, snow rain. For 33 sampling period each month is represented at least two times different years. LMW...

Journal: :Isotopes in environmental and health studies 2010
Lee J Florea Dorien K McGee

Data from a 10-month monitoring study during 2007 in the Everglades ecosystem provide insight into the variation of delta(18)O, deltaD, and ion chemistry in surface water and shallow groundwater. Surface waters are sensitive to dilution from rainfall and input from external sources. Shallow groundwater, on the other hand, remains geochemically stable during the year. Surface water input from ca...

Journal: :Vadose Zone Journal 2023

Abstract The Reynolds Creek Experimental Watershed (RCEW) and Critical Zone Observatory (CZO), located south of the western Snake River Plain in Intermountain West United States, is site over 60 years research aimed at understanding integrated earth processes a semi‐arid climate to aid sustainable use environmental resources. Meteoric water lines (MWLs) are used interpret hydrologic processes, ...

Journal: :Water 2023

The study on precipitation isotope variation can potentially improve the understanding of weather processes, regional water cycle and paleoclimate reconstruction in subtropical monsoon region. Based measured stable composition (δ18Op) daily from January 2010 to December 2021 Changsha region eastern China, δ18Op variations, amount effect local meteoric line (LMWL) were analyzed compared daily, m...

Journal: :Sustainability 2023

The current investigation aimed to assess the impact of land use changes on groundwater quality because extensive mining activities in coal province Mahan River catchment area, which is located Surguja district Chhattisgarh, India. water index (WQI), Collin’s ratio, stable isotope ratios molecules (δ18O and δD), various physicochemical parameters were measured determine suitability for domestic...

Journal: : 2021

The 2H/1H and 18O/16O isotope ratios in rainwater bring a lot of information about the fractionation water molecules hydrosphere. relationship between an area characterised by local meteoric line, which is known as reliable reference value for studies related to identification recharge source groundwater climate change investigations. This study aims establish line Long Khanh city (LK LMWL) per...

Journal: :Journal of Hydrology: Regional Studies 2021

Robit-Bata watershed, Upper Blue Nile basin, Ethiopia. Stable isotopes of water (Oxygen-18 and Deuterium) were used as tracers to estimate the contribution groundwater in shallow hillslope aquifers streamflow watershed. To assess spatiotemporal variability develop a hydrograph separation technique, we collected rainfall, groundwater, samples analyzed their δ18O δ2H isotopic compositions. The lo...

Journal: :PloS one 2016
Kudzai Farai Kaseke Lixin Wang Heike Wanke Veronika Turewicz Paul Koeniger

Global precipitation isoscapes based on the Global Network for Isotopes in Precipitation (GNIP) network are an important toolset that aid our understanding of global hydrologic cycles. Although the GNIP database is instrumental in developing global isoscapes, data coverage in some regions of hydrological interest (e.g., drylands) is low or non-existent thus the accuracy and relevance of global ...

Journal: :Hydrology and Earth System Sciences 2021

Abstract. Plant–soil water isotopic dynamics in northern forests have been understudied relative to other forest types; nevertheless, such information can provide insight into how may respond hydroclimatic change. This study examines the co-evolution of xylem and soil stable compositions a mixed Ontario, Canada. Gross precipitation, bulk were sampled from pre-leaf out post-senescence 2016 for e...

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