Actions

Characteristic Numbers of Potential Energy Anomaly (independent of tides)

From BAWiki

Revision as of 09:48, 21 October 2022 by 127.0.0.1 (talk) (The LinkTitles extension automatically added links to existing pages (<a target="_blank" rel="nofollow noreferrer noopener" class="external free" href="https://github.com/bovender/LinkTitles">https://github.com/bovender/LinkTitles</a>).)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)


Motivation

Calculation and graphic display of several tide-independent characteristic numbers of potential energy anomaly (PEA) can yield additional insight into salinity related phenomena of natural coastal and/or inland waters. In contrast to the computation of the tidal characteristic numbers of potential energy anomaly the tide-independent numbers can be preferable used for

  • natural waters which are not dominated by the tides, e.g. like the coastal waters and estuaries along the Baltic Sea coast of Germany, or in
  • extreme situations, like for example periods of high or low fresh water runoff, when PEA may deviate strongly from the average (tide-dominated) conditions, as well as for the
  • determination of characteristic values of PEA for an arbitrary long (or short) period of time.

Analysis of tide-independent characteristic numbers of potential energy anomaly data is carried through by the computer program NCANALYSE.

Definitions for the tide-independent characteristic numbers of potential energy anomaly

Maximum Value of PEA

Highest (local) value of PEA within the period of data analysis.

Maximum valid PEA

Highest valid (local) value of PEA within an arbitrary period of time, computed out of a time serie which may contain invalid data due to different reasons (drying, instrument failure, etc.).

Minimum Value of PEA

Lowest (local) value of PEA within the period of data analysis.

Minimum valid PEA

Lowest valid (local) value of PEA within an arbitrary period of time, computed out of a time serie which may contain invalid data due to different reasons (drying, instrument failure, etc.).

Mean Value of PEA

Mean value of PEA within the period of data analysis.

Maximum PEA Difference

Difference in PEA between maximum and minimum value within the period of data analysis.

Standard Deviation of PEA

Standard deviation of PEA within the period of data analysis.
Computed for permanently flooded areas only.

Variance of PEA

Variance of PEA within the period of data analysis.
Computed for permanently flooded areas only.

Relative Frequency Distribution of PEA

Relative frequency of PEA within given PEA intervals.

Cumulative Frequency Distribution of PEA

Cumulative frequency of PEA within given salinity intervals.

Quantiles of PEA

PEA value of a time series which is not exceeded of a certain percentage of present PEA values.
Computed for permanently flooded areas only.

back to Analysis of Calculated Results

Overview

Retrieved from "http://wiki.baw.de/en/index.php?title=Characteristic_Numbers_of_Potential_Energy_Anomaly_(independent_of_tides)&oldid=15162"