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12 Mueggelsee nutrients

Title
Mueggelsee nutrients
Description

1979 - 2016 Mueggelsee Chemistry and nutrients weekly sampling on mondays.

Parameter

soluble reactive phosphorus SRP [µg/l], P total phosphorus TP [µg/l], P soluble phosphorus SP / PO3 [µg/l],

P nitrate NO3_N [mg/l], N ammonium NH4_N mg/l, N dissolved nitrogen DN mg/l,

N total nitrogen TN [mg/l], N total silica TSI [mg/l], Si soluble reactive silica SRSi [mg/l],

Si dissolved inorganic carbon DIC [mg/l], C dissolved organic carbon DOC [mg/l], C total organic carbon TOC [mg/l],

C chlorophyll a Chl-a HPLC, [µg/l] sulfate SO4 2- mg/L, chloride Cl- mg/L water chemistry

Species Groups
Study site
Müggelsee
Parameters

chemistry:

ammonium
name
ammonium
description

NH4+

chloride
name
chloride
dissolved organic carbon
name
dissolved organic carbon
description

Dissolved organic carbon (DOC), sometimes known as dissolved organic material (DOM),[1] is a broad classification for organic molecules of varied origin and composition within aquatic systems. The "dissolved" fraction of organic carbon is an operational classification. Many researchers use the term "dissolved" for compounds below 0.45 micrometers, but 0.22 micrometers is also common, saving colloidal for higher concentrations. A practical definition of dissolved typically used in marine chemistry is all substances that pass through a GF/F filter. The recommended measure technique is the HTCO technique after filtration on precombusted glass fiber filters, typically GF/F filters.[2]

Dissolved organic carbon in marine and freshwater systems is one of the greatest cycled reservoirs of organic matter on Earth, accounting for the same amount of carbon as the atmosphere and up to 20% of all organic carbon.[3] The source of dissolved organic carbon depends on the body of water. In general, organic carbon compounds are a result of decomposition processes from dead organic matter such as plants or marine organisms. When water originates from land areas with a high proportion of organic soils, these components can drain into rivers and lakes as dissolved organic carbon.

Dissolved organic carbon is also extremely important in the transport of metals in aquatic systems. Metals form extremely strong complexes with dissolved organic carbon, enhancing metal solubility while also reducing metal bioavailability.

(Wikipedia)

synonyms
dissolved organic material (DOM), non-purgeable organic carbon (NPOC)
nitrate
name
nitrate
soluble reactive phosphorus
name
soluble reactive phosphorus
description

IGB Methodendatenbank:

http://intranet.igb-berlin.de/methodendetails/items/75.html

synonyms
anorganischer gelöster Phosphor, ortho-Phosphat-P, DRP, DIP, inorganic soluble phosphorus
sulfate
name
sulfate
description

The sulfate or sulphate (see spelling differences) ion is a polyatomic anion with the empirical formula SO2−
4
. Sulfate is the spelling recommended by IUPAC, but sulphate is used in British English. Salts, acid derivatives, and peroxides of sulfate are widely used in industry. Sulfates occur widely in everyday life. Sulfates are salts of sulfuric acid and many are prepared from that acid. (Wikipedia)

synonyms
sulphate
total nitrogen
name
total nitrogen
synonyms
Gesamtstickstoff
total organic carbon
name
total organic carbon
description

total organic carbon

total phosphorus
name
total phosphorus

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
Contact
Rita Adrian
Licence for data
All rights reserved. Please send a request to Rita Adrian if you like to use this data. Mind our data policy: Lakebase Data Policy
Current doi
10.5072/935.0
Publications

List of all publications related to this package:

  • Mehner, T., Rapp, T., Monk, C.T. et al. Ecosystems (2019) 22: 346. https://doi.org/10.1007/s10021-018-0273-x Feeding Aquatic Ecosystems: Whole-Lake Experimental Addition of Angler’s Ground Bait Strongly Affects Omnivorous Fish Despite Low Contribution to Lake Carbon Budget

Metadata files

TitleUpload dateFiletypeLicenceActions
Metadata_weekly_sampling_Müggelsee.pdf05. Dec. 2017 10:21.pdf Download

Data files (e.g. excel)

TitlecreatedFiletypeActions
mueggelsee_nutrients_epilimnion.csv 13. Jul. 2017 12:39 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 free CC BY 4.0 Licence.

  • Mueggelsee_nutrients.xml
  • Mueggelsee_nutrients.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)