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    497 ILES-2018_windspeed_sec_processed

    Title
    ILES-2018_windspeed_sec_processed
    Period
    2018-08-01 till 2018-09-30
    Period length
    1 mon 29 days 23 hours 59 minutes 59 secs
    Sampling interval
    1 sec
    Description

    IGB wind speed measurements at enclosure E23 at the vertical height of 30 cm above the water surfe within the encolsure (location 1) and 230 cm above the water surface (location 2).

    Quality processing/ processing:

    - Data was made equal spaced, i.e. NA for missing measurements added

    -  Removal of duplicates

    -  Handling of negative values at location 1

    -  transformed wind speed to 10 m standard height following Crusius and Wanninkhof (2003) was added

    - Added time information: day of year, day of year with decimal places indicating hour and minute, hour, minute, second

     

    Due to size issues the data is devided into two .xlsx one for location 1 and one for location 2.

    In each .xlsx file the data is subdivided into 6 sheets to stay below the Excel row limit of 1048576 rows.

    For convenience one long .csv file without metadata is provided. Note however that this file can not be manipulated on the local computer in programs like Excel or LibreOffice, since after storage of the changes data above the

    row limit will be lost.

    Keywords
    wind speed, wind speed at 10 m height, vertical location, water surface, rim sheltering effect, E23
    Study site
    LakeLab - Experimental Site
    Sampling locations
    LakeLab
    location
    53.1433, 13.0281
    location
    type
    Center point LakeLab
    state
    Experimental outdoor mesocosm facility with in Stechlinsee
    code
    description

    Center point of the LakeLab, an outdoor mesocosm facility within Stechlinsee.

    Parameters

    temporal:

    day of year
    name
    day of year
    synonyms
    doy

    meteorology:

    wind speed
    name
    wind speed
    synonyms
    Windgeschwindigkeit, Windstärke
    Contact
    Stella Angela Berger, Jens Nejstgaard
    Licence for data
    All rights reserved. Please send a request to Stella Angela Berger, Jens Nejstgaard if you like to use this data. Mind our data policy: IGB Data Policy
    Project
    ILES-18 Project Website

    Data files (e.g. excel)

    TitlecreatedFiletypeActions
    ILES_2018_wind_location_2_sec_collection_processed.xlsx 29. Aug. 2019 17:32 datatable: .xlsx
    Error: To access file, please get in touch with the contact person.
    ILES_2018_wind_location_1_sec_collection_processed.xlsx 29. Aug. 2019 17:30 datatable: .xlsx
    Error: To access file, please get in touch with the contact person.
    wind_two_location_comparison_sec_collection_processed.csv 27. Aug. 2019 12:13 datatable: .csv
    Error: To access file, please get in touch with the contact person.

    Machine Readable Metadata Files

    FRED provides all metadata of this package in a maschine readable format. There is a pure XML file and one EML file in Ecological Metadata Language. Both files are published under the freeODC-ByLicence.

    • ILES-2018_windspeed_sec_processed.xml
    • ILES-2018_windspeed_sec_processed.eml

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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)