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- Stiff_diagram abstract "A Stiff diagram, or Stiff pattern, is a graphical representation of chemical analyses, first developed by H.A. Stiff in 1951. It is widely used by hydrogeologists and geochemists to display the major ion composition of a water sample. A polygonal shape is created from four parallel horizontal axes extending on either side of a vertical zero axis. Cations are plotted in milliequivalents per liter on the left side of the zero axis, one to each horizontal axis, and anions are plotted on the right side. Stiff patterns are useful in making a rapid visual comparison between water from different sources. An alternative to the Stiff diagram is the Maucha diagram.Stiff diagrams can be used:1) to help visualize ionically related waters from which a flow path can be determined, or;2) if the flow path is known, to show how the ionic composition of a water body changes over space and/or time.A typical Stiff diagram is shown in the figure (right). By standard convention, Stiff diagrams are created by plotting the equivalent concentration of the cations to the left of the center axis and anions to the right. The points are connected to form the figure. When comparing Stiff diagrams between different waters it is important to prepare each diagram using the same ionic species, in the same order, on the same scale.Environmental laboratories typically report concentrations for anion and cation parameters using units of mass/volume, usually mg/L. In order to convert the mass concentration to an equivalent concentration the following mathematical relationship is used:(mass concentration) * (ionic charge) / (molecular weight) = (equivalent concentration)For example, a water with a calcium concentration of 120 mg/L would have the following calcium equivalent concentration:(120 mg/L) * (2 meq/mmol) / (40 mg/mmol) = 6 meq/L".
- Stiff_diagram thumbnail Example_Stiff_Diagram.jpg?width=300.
- Stiff_diagram wikiPageExternalLink python.hydrology-amsterdam.nl.
- Stiff_diagram wikiPageExternalLink www.gwb.com.
- Stiff_diagram wikiPageExternalLink Default.aspx.
- Stiff_diagram wikiPageExternalLink index.php.
- Stiff_diagram wikiPageExternalLink overview.php?id=150.
- Stiff_diagram wikiPageExternalLink overview.php?id=70.
- Stiff_diagram wikiPageExternalLink overview.php?id=74.
- Stiff_diagram wikiPageExternalLink diagrams.php.
- Stiff_diagram wikiPageExternalLink www.swstechnology.com.
- Stiff_diagram wikiPageID "18641672".
- Stiff_diagram wikiPageLength "3569".
- Stiff_diagram wikiPageOutDegree "14".
- Stiff_diagram wikiPageRevisionID "680681673".
- Stiff_diagram wikiPageWikiLink Category:Analytical_chemistry.
- Stiff_diagram wikiPageWikiLink Category:Water_chemistry.
- Stiff_diagram wikiPageWikiLink File:Example_Stiff_Diagram.jpg.
- Stiff_diagram wikiPageWikiLink Geochemistry.
- Stiff_diagram wikiPageWikiLink HydroAnalysis.
- Stiff_diagram wikiPageWikiLink Hydrogeology.
- Stiff_diagram wikiPageWikiLink Ion.
- Stiff_diagram wikiPageWikiLink Maucha_diagram.
- Stiff_diagram wikiPageWikiLink Prentice_Hall.
- Stiff_diagram wikiPageWikiLink Python_(programming_language).
- Stiff_diagram wikiPageWikiLink Rockworks.
- Stiff_diagram wikiPageWikiLink The_Geochemists_Workbench.
- Stiff_diagram wikiPageWikiLink Water_quality.
- Stiff_diagram wikiPageWikiLinkText "Stiff diagram".
- Stiff_diagram wikiPageUsesTemplate Template:Chem-stub.
- Stiff_diagram wikiPageUsesTemplate Template:Science-stub.
- Stiff_diagram subject Category:Analytical_chemistry.
- Stiff_diagram subject Category:Water_chemistry.
- Stiff_diagram hypernym Representation.
- Stiff_diagram type Geophysic.
- Stiff_diagram type Redirect.
- Stiff_diagram type Science.
- Stiff_diagram comment "A Stiff diagram, or Stiff pattern, is a graphical representation of chemical analyses, first developed by H.A. Stiff in 1951. It is widely used by hydrogeologists and geochemists to display the major ion composition of a water sample. A polygonal shape is created from four parallel horizontal axes extending on either side of a vertical zero axis.".
- Stiff_diagram label "Stiff diagram".
- Stiff_diagram sameAs Q7616402.
- Stiff_diagram sameAs مخطط_ستيف.
- Stiff_diagram sameAs m.04gjp3s.
- Stiff_diagram sameAs Q7616402.
- Stiff_diagram wasDerivedFrom Stiff_diagram?oldid=680681673.
- Stiff_diagram depiction Example_Stiff_Diagram.jpg.
- Stiff_diagram isPrimaryTopicOf Stiff_diagram.