Water vapor isotope experiment was conducted at Ivittuut site (ice sheet), Greenland (61°12’ N, 47°10’ W) from Oct 2011 – May 2013.
Data download: NetCDF
Variable definitions
|
Description |
Unit |
Equipment |
Height (m) |
Additional description |
|
Date time |
− |
− |
− |
UTC |
|
Water mixing ratio |
ppmv |
Picarro L2120-i |
5 m |
− |
|
Water vapour isotopic ratio (18O) |
per mil |
Picarro L2120-i |
5 m |
Normalized to V-SMOW; Humidity dependence correlation: Non-linear regression |
|
Standard deviation of 18O |
per mil |
Picarro L2120-i |
5 m |
daily |
|
Water vapour isotopic ratio (D) |
per mil |
Picarro L2120-i |
5 m |
Normalized to V-SMOW; Humidity dependence correlation: Non-linear regression |
|
Standard deviation of D |
per mil |
Picarro L2120-i |
5 m |
daily |
|
Air temperature |
Celsius (°C) |
− |
− |
− |
|
Relative humidity |
<=1 |
− |
− |
− |
|
Air pressure |
kPa |
− |
− |
− |
|
Precipitation |
mm |
− |
− |
− |
|
Net radiation |
W/m2 |
− |
− |
− |
|
Wind speed |
m/s |
− |
− |
− |
|
Wind direction |
degree (°C) |
− |
− |
− |
|
Air temperature |
Celsius (°C) |
− |
2 |
ERA5 |
|
Relative humidity |
<=1 |
- |
2 |
ERA5 |
|
Air pressure |
kPa |
- |
2 |
ERA5 |
|
Precipitation |
mm |
- |
- |
ERA5 |
|
Net radiation |
W/m2 |
- |
− |
ERA5 |
|
Wind speed |
m/s |
- |
- |
ERA5 |
|
Wind direction |
°C |
- |
10 |
ERA5 |
Reference papers
Bonne, J.-L., Masson-Delmotte, V., Cattani, O., Delmotte, M., Risi, C., Sodemann, H., and Steen-Larsen, H. C.: The isotopic composition of water vapour and precipitation in Ivittuut, southern Greenland, Atmos. Chem. Phys., 14, 4419-4439 （2014）.
Steen‐Larsen, H. C., et al. “Evaluating the skills of isotope‐enabled General Circulation Models against in‐situ atmospheric water vapor isotope observations.” Journal of Geophysical Research: Atmospheres (2016).
Site contact
Name: Hans Christian Steen-Larsen
Email: hanschr@gfy.ku.dk