Water vapor isotope experiment was conducted at the Mpala Research Center located in Kenya. The isotopic measurement started in Feb 2010 to Dec 2011 at an eddy covariance tower in the Center (0.49° N, 36.87° E, 1619 m a.m.s.l.).
Data download: NetCDF
Variable definitions
|
Description |
Unit |
Equipment |
Height (m) |
Additional description |
|
Date time |
− |
− |
− |
UTC |
|
Water mixing ratio |
ppmv |
LGR DLT-100 |
4 |
− |
|
Water vapour isotopic ratio (18O) |
per mil |
LGR DLT-100 |
4 |
Normalized to V-SMOW; Humidity dependence correlation: Linear regression |
|
Standard deviation of 18O |
per mil |
LGR DLT-100 |
4 |
Hourly |
|
Water vapour isotopic ratio (D) |
per mil |
LGR DLT-100 |
4 |
Normalized to V-SMOW; Humidity dependence correlation: Linear regression |
|
Standard deviation of D |
per mil |
LGR DLT-100 |
4 |
Hourly |
|
Air temperature |
K |
− |
− |
− |
|
Relative humidity |
<=100% |
− |
− |
− |
|
Air pressure |
Pa |
− |
− |
− |
|
Precipitation |
mm |
− |
− |
− |
|
Net radiation |
W/m2 |
− |
− |
− |
|
Wind speed |
m/s |
− |
− |
− |
|
Wind direction |
degree (°C) |
− |
− |
− |
|
Air temperature |
K |
− |
2 |
ERA5 |
|
Relative humidity |
<=100% |
− |
2 |
ERA5 |
|
Air pressure |
Pa |
− |
2 |
ERA5 |
|
Precipitation |
mm |
− |
− |
ERA5 |
|
Net radiation |
W/m2 |
− |
− |
ERA5 |
|
Wind speed |
m/s |
− |
− |
ERA5 |
|
Wind direction |
°C |
− |
10 |
ERA5 |
Reference papers
Good SP, Soderberg K, Guan K, King EG, Scanlon TM, Caylor KK. δ2H isotopic flux partitioning of evapotranspiration over a grass field following a water pulse and subsequent dry down. Water Resources Research 2014, 50(2): 1410-1432.
Good SP, Soderberg K, Wang L, Caylor KK. Uncertainties in the assessment of the isotopic composition of surface fluxes: A direct comparison of techniques using laser-based water vapor isotope analyzers. Journal of Geophysical Research: Atmospheres 2012, 117(D15).
Site contact
Name: Kelly K. Caylor
Email: caylor@ucsb.edu (Kelly K. Caylor)