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    532 Müggelsee Station High Frequency insitu

    Title
    Müggelsee Station High Frequency insitu
    Period
    2001-10-31 ongoing
    Sampling interval
    5 mins Irregular Interval
    Note on interval
    gaps every hour, and only 1h interval in winter time
    Description

    High frequency Multi Parameter Probe measurements in 1.5 m depth.

    Since the station creates high frequent measurement data that causes large files, we decided to split the time series in four parts.

    Please find in the data Files section the tables for:

    2001 to 2007

    2007 to 2012

    2013 to 2019

    2019 - up to now

     

    Please note that there where no high frequency measurements in winter time under ice coverage.

    To fill the winter gaps, please find in the data Files section the file "under ice probe - winter data, interval: 1 h" which has an frequency of one hour.

     

    Please note that before 2013 there where gaps in the high frequency data every hour. In this time the probe has been used to get the profile measurements over several depths.

    Please find the profile measurments here:

    https://fred.igb-berlin.de/data/package/165

     

     

    Study site
    Müggelsee
    Sampling types
    surface water
    Sampling sites
    Müggelsee Messstation
    location
    52.44617, 13.65
    location
    code
    M210
    description

    Die Forschungs- und Messtation "Georg Mothes" wurde 2001 errichtet und liegt ca. 300m vom Nordufer des Sees entfern.
    Die Station hat meteorologische und wasserphysikalische Messsystem installiert. Die Seetiefe beträgt an dieser Stelle ca. 5.5m.
    Bei Eis wird die Messstation in den Hafen transportiert. In dieser Zeit erfolgen keine Messungen in den hochaufgelösten Intervallen.

    Parameters

    physics:

    turbidity
    name
    turbidity
    synonyms
    Trübung
    water temperature
    name
    water temperature
    description

    Wassertemperatur

    synonyms
    water temp, Wassertemperatur

    chemistry:

    oxygen concentration
    name
    oxygen concentration
    synonyms
    Sauerstoffkonzentration
    oxygen saturation
    name
    oxygen saturation
    synonyms
    Sauerstoffsättigung
    pH
    name
    pH

    biology:

    chlorophyll a
    name
    chlorophyll a
    description

    Attention: There are two different methods:

    HPLC - High Performance Liquid Chromatography (ex situ)

    YSI - Chlorophyll Sensor in Multiparameter probe (in situ)

    synonyms
    Chlorophyllkonzentration, alpha-chlorophyll
    phycocyanin
    name
    phycocyanin
    description

    A measurement of Blue algae concentration.

    Unit RFU: relative fluorescence units.

    Contact
    Rita Adrian
    Licence for data
    This data are made available under the Open Database License:Open Data Commons Attribution License

    Metadata files

    TitelUpload dateFiletypeLicenceActions
    Messstation_Müggelsee.pdf09. Apr. 2020 07:04.pdfODC-By Download
    General_MetadataMüggelsee_Station_High_Frequency_insitu.xml05. Jun. 2020 07:38xmlODC-By Download
    General_MetadataMüggelsee_Station_High_Frequency_insitu.eml05. Jun. 2020 07:38emlODC-By Download

    Data files (excel)

    TitelCreateFiletypeActions
    under ice probe - winter data, interval: 1 h21. Mar. 2014 14:19database export to .csv
    from 2019 ongoing, interval: 5 min15. Aug. 2019 13:16database export to .csv
    from 2013 to 2019, interval: 5 min13. Jun. 2013 13:41database export to .csv
    from 2007 to 2012, interval: 5 min23. Apr. 2013 13:20database export to .csv
    from 2001 to 2007, interval: 5 min18. Mar. 2014 11:11database export to .csv

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    Parsing data File

    Estimated Time:

    Why does it take so much time?

    While parsing a file, the database has to perform various tasks, some of them needs a lot of CPU and memory for larger files.

    • preprocessing: means automatic detection of headlines, table body, format values or csv-separators
    • copying: means read the file cell by cell and copy all elements to the database. During this format settings can be calculated (for example iso-time)
    • analyzing: check out for different data types (can be time, numeric or text)