The overall data set is organized following the concept of Fersch et al (2020} along the observed variables and instruments. 
Each subset of data is documented in a dedicated metadata file in “json” format to facilitate automated meta-data retrieval. 
The presented data largely consist of time series or intermittent observations that were obtained at well-defined locations. 
	These locations are documented in a geospatial data set in the format of ESRI shapefiles (geo_spatial.zip). 
	The observed time series are provided in tab-separated text files in which the first column contains the date and time (in UTC, ISO 8601 format), and the second column the plot name. Any other columns represent measured or derived variables. Exceptions from this data model (e.g. vegetation, manual soil measurements) are described in the corresponding json files with metadata.
	
DATA FORMAT:
*time series data are a .txt data file (ANSI, separator = "tab", decimal = ".", )
		- first column contains date and time (in UTC, ISO 8601 format, e.g. 2022-09-27 18:00)
		- any other columns represent measured or derived variables
		- header line contains names of the columns - NO SYMBOLS
		- nodata values encoded as an empty field or string NA (without quotation marks)
*geo vector data has the format ESRI shapefile or geojson 
*geo raster data has the geotiff or tif format

FOLDER AND FILE NAMING CONVENTION
*folders at first level correspond to data sections, deeper levels decribe subsections
*data is named according to measured value, if neccesary with corresponding site or area
	-SITE_MEASURED_VALUE.txt
	-examples: soil/moisuture/timeserie/B_theta_gapfilled.txt, vegetation/canopycover/canopy_cover.txt
	
ID AND COLUMN NAMING CONVENTIONS
* "date": date as 2022-09-27 18:00:00
* "plot": Plotname containing one letter for Site and the plot number (1-10) e.g. "K9"
	
META DATA
*one file for each data set (containing for example all files of one measurement method) 
	- named according to data files (idealy same as the corresponding folder) MEASURED_VALUE_meta.json
			example: canopy_cover_meta.json