Stable isotopes in precipitation (δ18O and δD) from Yadong and Pali, central Himalayas

Metadata

The isotopic compositions of daily precipitation were measured at two stations, Yadong and Pali, in the central Himalayas. The precision for δ18O and δD is ±0.1‰ and ±0.4‰, respectively. The meteorological data, including the collection of precipitation amounts and surface air temperature, was obtained by the Institute of Tibetan Plateau Research, Chinese Academy of Sciences, China.

Stations

Station
Latitude
Longitude
Altitude (m.a.s.l.)
Sampling period
Samples (n)

Yadong
27° 29’ 40” N
88° 55’ 01” E
2945
2014-03-13 - 2015-07-18
125

Pali
27° 43’ 16” N
89° 09’ 08” E
4300
2014-03-18 - 2015-07-23
130

Variable definitions

Description
Unit
Equipment
Additional description

Date time
−
−
−

Air temperature
Celsius (°C)
−
−

Precipitation
mm
−
−

Water vapour isotopic ratio (δ18O)
per mil
Picarro-2130i Liquid Water Isotope Analyzer
Normalized to V-SMOW

Water vapour isotopic ratio (δD)
per mil
Picarro-2130i Liquid Water Isotope Analyzer
Normalized to V-SMOW

Deuterium excess (d-excess)
per mil

d-excess=δD-8*δ18O

Reference paper

Axelsson, J., Gao, J., Eckhardt, S., Cassiani, M., Chen, D. & Zhang, Q. (2023). A precipitation isotopic response in 2014-2015 to moisture transport changes in the central Himalayas. Journal of Geophysical Research: Atmospheres