Water vapor measurement was carried out in a cabin top (~3 meter above the ground) on the grassland of the Department of Atmospheric Science (25°00’52”N 121°32’20”E; from Jan to Aug 2012) and at the 7th floor (~30 m above the ground) of the Department of Geography (25°00’54”N 121°32’18”E; from Aug, 2012 to Mar 2013), NTU campus.
Data download (2011-2013): Metafile, Dataset
Data download (2016): Metafile, Dataset
Variable definitions
|
Description |
Unit |
Equipment |
Height (m) |
Additional description |
|
Date time |
− |
− |
− |
UTC |
|
Water mixing ratio |
ppmv |
Picarro L2120-i |
3 (11th January to 14th August 2012); 30 (from 15th August 2012 to 31st March 2013) |
− |
|
Water vapour isotopic ratio (18O) |
per mil |
Picarro L2120-i |
3 (11th January to 14th August 2012); 30 (from 15th August 2012 to 31st March 2013) |
Normalized to V-SMOW; Humidity dependence correlation: No |
|
Standard deviation of 18O |
per mil |
Picarro L2120-i |
3 (11th January to 14th August 2012); 30 (from 15th August 2012 to 31st March 2013) |
Hourly |
|
Water vapour isotopic ratio (D) |
per mil |
Picarro L2120-i |
3 (11th January to 14th August 2012); 30 (from 15th August 2012 to 31st March 2013) |
Normalized to V-SMOW; Humidity dependence correlation: No |
|
Standard deviation of D |
per mil |
Picarro L2120-i |
3 (11th January to 14th August 2012); 30 (from 15th August 2012 to 31st March 2013) |
Hourly |
|
Air temperature |
K |
− |
− |
CWB station |
|
Relative humidity |
<=100% |
− |
− |
CWB station |
|
Air pressure |
Pa |
− |
− |
CWB station |
|
Precipitation |
mm |
− |
− |
CWB station |
|
Net radiation |
W/m2 |
− |
− |
− |
|
Wind speed |
m/s |
− |
− |
CWB station |
|
Wind direction |
degree (°C) |
− |
− |
CWB station |
|
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
Laskar A.H., J.C. Huang, S.C. Hsu, S.K. Bhattacharya, C.H. Wang, M.C. Liang (2014), Stable isotopic composition of near surface atmospheric water vapor and rain-vapor interaction in Taipei, Taiwan, Journal of Hydrology, 519, 2091-2100, 10.1016/j.jhydrol.2014.10.017.
Site contact
Name: Danie Liang
Email: mcl@rcec.sinica.edu.tw