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The data are stored as R data file (WQData_*.rds) in the subdrirectory “./DataOS/WQData/”.
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The concentrations of WALCRN2, STEENBGN and OESTDM are used for the boundary concentrations at the North Sea, Krammersluizen and Bergse Diepsluis, 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.
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*Overview of the data (Chla, DIN and PON) for the location WALCRN2.*
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[top](Data)
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# Suspended solids
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Data on total suspended matter (TPM) are derived from [Rijkswaterstaat](https://waterinfo.rws.nl) (see above). Data is selected from the locations WISSKKE, LODSGT and ZIJPE from 1-jan-2000 to 2019. On average the total suspended matter concentrations in the Oosterschelde over the period 2000 - 2019 was 9.0 mg l<sup>-1</sup> but is highly variable, depending on environmental conditions such as storms. On average the TPM values were highest at the location WISSKKE (14.2 mg l<sup>-1</sup>), and lowest at the locations ZIJPE (5.1 mg l<sup>-1</sup>) and LODSGT (7.6 mg l<sup>-1</sup>).
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*Total Suspended Matter (TPM) concentrations in the Oosterschelde for the locations WISSKKE, LODSGT and ZIJPE from 2000 until 2019 (Top). In the lower figure boxplots per month are presented. The red line represents the average values.*
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The monthly-averaged values show that the TPM concentrations are higher in the winterperiod than in the summerperiod. A cosine function is fitted through the monthly average values to derive a generic function of the TPM values throughout the year in the Oosterschelde.
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```math
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TPM = 10 + 3.13 \cdot cos \left( \frac{2 \pi}{365.25} - 15 \right)
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```
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*Monthly-averaged TPM concentrations in the Oosterschelde over the period 2000 - 2019. The indicates the fitted cosine function.*
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[top](Data)
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# Water Temperature
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Data on water temperature in the Oosterschelde is derived from [Rijkswaterstaat](https://waterinfo.rws.nl). The location "Marollegat", situated in the eastern part of the Oosterschelde (slightly east from location NIOZ_8) is selected since a relative complete timeserie is available for this location from January 1<sup>st</sup> 2000. From the data, daily averaged water temperature is calculated. For the days with missing data, the averaged data from NIOZ is used. The data are stored as R data file (WaterTemp_*.rds) in the subdrirectory “./DataOS/WQData/”.
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*Daily averaged water temperature in the Oosterschelde from January 2000 to December 2020.*
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[top](Data)
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# Irradiation
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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 (LightWestdorpe_*.rds) in the directory "/DataOS/KNMI/"
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*Irradiation (W d<sup>-1</sup>) at the location Westdorpe. In the upper panel all data are plotted from January 1996 to February 2021. In the lower panel a detail is presented for the period January 2018 to February 2021.*
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[top](Data)
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... | ... | @@ -89,6 +88,6 @@ The total biomass of mussels at the culture plots in the Oosterschelde is estima |
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Raw data are processed by the file "Shellfish.R". Data is stored as R data file (Shellfish_*.rds) in the subdirectory “./DataOS/Shellfish/”.
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*Yearly variation of the total stock (million kg fresh weight) of mussels at culture plots (blue), cockles (khaki), wild oysters (orange) and cultured oysters (green) in the Oosterschelde.*
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[top](Data) |
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\ No newline at end of file |