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Update Data authored by Wijsman, Jeroen's avatar Wijsman, Jeroen
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Data.md
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......@@ -40,17 +40,17 @@ Not all components are measured at all stations over the whole period. The nitro
Dissolved inorganic nitrogen (DIN) and particulate organic nitrogen (PON) are expressed in mmol-N m<sup>-3</sup> by dividing by the molecular weight of nitrogen (14 g mole-1) and multiplying by 1000 (l m<sup>-3</sup>).
Additionally, NIOZ measured nutrients (NO3 and particulate organic nitrogen) and chlorophyll-a at 8 locations ((NIOZ_1 to NIOZ_8)) in the Oosterschelde from 1995 to 2013. The data are combined with the data from Rijkswaterstaat. Finally, negative values for PON are set to 0 and for the stations in the Oosterschelde, the concentration of particulate organic nitrogen is set to a maximum of 30 mmol-N m<sup>-3</sup>.
The data are stored as R data file (*.rds) in the subdrirectory “./DataOS/WQData/”.
The concentrations of WALCRN2 and STEENBGN are used for the boundary concentrations at the North Sea and Krammersluizen, respectively (function “Boundary_NPZ()”). The data in the Oosterschelde is used to compare the model results with the observation with the visualization app.
The concentrations of WALCRN2 and STEENBGN are used for the boundary concentrations at the North Sea and Krammersluizen, respectively (function “Boundary_NPZ()”). For the location WALCRN2 data of PON is only available from the webserver until December 31<sup>st</sup> 2018. The data in the Oosterschelde is used to compare the model results with the observation with the visualization app.
![WQ_Data_WALCRN2](uploads/f6f66ef51b19fa70b185ea18f561af20/WQ_Data_WALCRN2.png)
*Overview of the data (Chla, DIN and PON) for the location WALCHRN2*
*Overview of the data (Chla, DIN and PON) for the location WALCRN2.*
[top](Data)
# Water Temperature
[top](Data)
# Irradiation
Data on irradiation are derived from the [KNMI](https://www.knmi.nl/nederland-nu/klimatologie/daggegevens). Since the location Wilhelminadorp (323) has a gap in the data (January 6<sup>th</sup> 2014 to December 15<sup>st</sup> 2017 is missing), data from the location Westdorpe (319) is used. The variable Q in the raw datafile from KNMI contains data on Global radiation [J cm<sup>-2</sup>]. The irradiation is converted into units of W d<sup>-1</sup>. The data are stored as an R-data file in the directory "/DataOS/KNMI/"
Data on irradiation are derived from the [KNMI](https://www.knmi.nl/nederland-nu/klimatologie/daggegevens). Since the location Wilhelminadorp (323) has a gap in the data (January 6<sup>th</sup> 2014 to December 15<sup>th</sup> 2017 is missing), data from the location Westdorpe (319) is used. The variable Q in the raw datafile from KNMI contains data on Global radiation [J cm<sup>-2</sup>]. The irradiation is converted into units of W d<sup>-1</sup>. The data are stored as an R-data file in the directory "/DataOS/KNMI/"
In the figure below an overview is given on the irradiation data. The figure at the top represents the data from January 1996 to February 2021 and the figure at the bottom presents the data from Janauary 2018 to February 2021.
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