Stable isotopic composition of water vapor in the tropics

2004 ◽  
Vol 109 (D6) ◽  
pp. n/a-n/a ◽  
Author(s):  
James Robert Lawrence ◽  
Stanley David Gedzelman ◽  
Darielle Dexheimer ◽  
Hye-Khung Cho ◽  
Gordon D. Carrie ◽  
...  
Keyword(s):  
Water Vapor ◽  
Isotopic Composition ◽  
Stable Isotopic Composition ◽  
Stable Isotopic ◽  
The Tropics

Stable isotopic composition of near surface atmospheric water vapor and rain–vapor interaction in Taipei, Taiwan

2014 ◽  
Vol 519 ◽  
pp. 2091-2100 ◽  
Author(s):  
Amzad H. Laskar ◽  
Jr-Chuan Huang ◽  
Shih-Chieh Hsu ◽  
Sourendra K. Bhattacharya ◽  
Chung-Ho Wang ◽  
...  
Keyword(s):  
Water Vapor ◽  
Isotopic Composition ◽  
Atmospheric Water Vapor ◽  
Atmospheric Water ◽  
Near Surface ◽  
Stable Isotopic Composition ◽  
Stable Isotopic

Seasonal trends in the stable isotopic composition of snow and meltwater runoff in a subarctic catchment at Okstindan, Norway

2004 ◽  
Vol 35 (2) ◽  
pp. 119-137 ◽  
Author(s):  
S.D. Gurney ◽  
D.S.L. Lawrence
Keyword(s):  
Isotopic Composition ◽  
Mean Value ◽  
Mean Values ◽  
Stable Isotopic Composition ◽  
Meltwater Runoff ◽  
Stable Isotopic ◽  
The Mean ◽  
The Difference ◽  
Δ18o And Δd

Seasonal variations in the stable isotopic composition of snow and meltwater were investigated in a sub-arctic, mountainous, but non-glacial, catchment at Okstindan in northern Norway based on analyses of δ18O and δD. Samples were collected during four field periods (August 1998; April 1999; June 1999 and August 1999) at three sites lying on an altitudinal transect (740–970 m a.s.l.). Snowpack data display an increase in the mean values of δ18O (increasing from a mean value of −13.51 to −11.49‰ between April and August), as well as a decrease in variability through the melt period. Comparison with a regional meteoric water line indicates that the slope of the δ18O–δD line for the snowpacks decreases over the same period, dropping from 7.49 to approximately 6.2.This change points to the role of evaporation in snowpack ablation and is confirmed by the vertical profile of deuterium excess. Snowpack seepage data, although limited, also suggest reduced values of δD, as might be associated with local evaporation during meltwater generation. In general, meltwaters were depleted in δ18O relative to the source snowpack at the peak of the melt (June), but later in the year (August) the difference between the two was not statistically significant. The diurnal pattern of isotopic composition indicates that the most depleted meltwaters coincide with the peak in temperature and, hence, meltwater production.

Prediction method for determining the carbon stable isotopic composition of berry sugars in the original must of Chardonnay wines

2021 ◽  
pp. 130854
Author(s):  
Fumikazu Akamatsu ◽  
Hideaki Shimizu ◽  
Yukari Igi ◽  
Aya Kamada ◽  
Kazuya Koyama ◽  
...  
Keyword(s):  
Isotopic Composition ◽  
Prediction Method ◽  
Stable Isotopic Composition ◽  
Stable Isotopic
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