Title of the dataset:
Open water evaporation of Lake IJssel, data used in the study 'Evaporation from a large lowland reservoir – observed dynamics during a warm summer'


Creators:
Femke A. Jansen (femke.jansen@wur.nl)
Remko Uijlenhoet (R.Uijlenhoet@tudelft.nl)
Cor M.J. Jacobs (cor.jacobs@rivm.nl)
Adriaan J. Teuling (ryan.teuling@wur.nl)


Related publication:
'Evaporation from a large lowland reservoir – observed dynamics during a warm summer'


Description:
Time series of open water evaporation of Lake IJssel, the Netherlands. 
Data was collected at locations Stavoren and Trintelhaven at 7.5 m and 10.8 above land surface, respectively, from 2019 to 2020.
Data was collected using the eddy covariance instrument of the type IRGASON at a sampling frequency of 20 Hz. 
Variables Tair and RH were collected using a separate HMP155A instrument at a height of 7.4 m and 10.9 above surface in Stavoren and Trintelhaven, respectively. 
The eddy covariance data was processed using the EddyPro software at an averaging interval of 30-min.


Keywords:
Evaporation
Open water evaporation
Temperature
Relative Humidity
Hydrology
Meteorology
Eddy covariance
IJsselmeer


Spatial coverage:
Lake IJssel, the Netherlands


Temporal coverage:
2019-2020


This dataset contains the following files:
Ewater_Stavoren_2019.txt
Ewater_Stavoren_2020.txt
Ewater_Trintelhaven_2019.txt
Ewater_Trintelhaven_2020.txt


Explanation of variables:
YYYYmmddHHMM 	= Date (YYYY=year,mm=month,dd=day,HH=hour,MM=minute)
LE		= Latent heat flux [W/m2]
H		= Sensible heat flux [W/m2]
wind_speed	= Wind speed [m/s]
wind_dir	= Wind direction [degrees]
air_pressure 	= Air pressure [Pa]
Tair		= Air temperature [degrees Celsius]
RH		= Relative humidity [percents]


Methods, materials and software:
Data was collected using an eddy covariance instrument of the type IRGASON and the data was processed using EddyPro software. 
Tair and RH were measured using HMP155A instruments. 
A more detailed description of the set-up and methods used can be found in the accompanying study 'Evaporation from a large lowland reservoir – observed dynamics during a warm summer'.


This dataset is published under the CC BY (Attribution) license.
This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format, so long as attribution is given to the creator.

