TIDKEN

Basic Information

Name of Program

TIDKEN

Version-Date

October 1999

Description-Date

December 2000

Catchwords

analyses of measured data
analyses of numerically calculated data
tidal characteristic numbers of water level
tidal characteristic numbers of current velocity
tidal characteristic numbers of salinity
comparative statistical data for tidal characteristic numbers
estuary
postprocessor

Short Description of Functionality

Program TIDKEN belongs to the various postprocessing programs of different mathematical models. In addition to numerically calculated results also measured data can be used as input. The program allows a (semi-) automatic computation of tidal characteristic numbers for different (computed and/or measured) time series given at individual locations. The following characteristic numbers can be obtained:

• tidal characteristic numbers of water level

• High Water HW
• Low Water LW
• Tidal Range
• Flood Period
• Ebb Period
• High Water Time T_HW
• Low Water Time T_LW
• frequency distribution

• tidal characteristic numbers of current velocity

• flood current

• Maximum Flood Current Velocity
• Mean Flood Current Velocity
• Flood Current Duration
• Slack Water Time of Flood Current
• Flood Path
• frequency distribution

• ebb current

• Maximum Ebb Current Velocity
• Mean Ebb Current Velocity
• Ebb Current Duration
• Slack Water Time of Ebb Current
• Ebb Path
• frequency distribution

• tidal characteristic numbers of salinity

• Maximum Salinity during a Tidal Cycle
• Minimum Salinity during a Tidal Cycle
• Variation of Salinity during a Tidal Cycle
• frequency distribution

In addition to the above mentioned tidal characteristic numbers comparative statistical data may be also calculated when two different time series are analysed at the same time.

The program TDKTIE link the several result files and generates for example a table with the tidal characteristic numbers along a profile.

Input-Files

1. general input data (filetype tdkneu.dat).
2. measured or numerically computed time series (filetype boewrt.dat or knoerg.bin).

Output-Files

1. (optional) lineprinter file with results of a single data analysis (filetype tidken.e.sdr).
2. (optional) lineprinter file with results of comparative analysis (filetype tidken.v.sdr);

   in addition a few ASCII files with analyses results of filetype zeile.tidken.dat):

   water level (zeile.H.xxx.dat and zeile.h.xxx.dat, x=001, ... 999)

   current velocity (zeile.V.dat and zeile.v.dat)

   and salinity (zeile.z.dat).

3. (optional) binary file with results of a single data analysis (filetype tidken.e.bin).
4. (optional) trace of program execution (filetype tidken.trc).

Methodology

• in a first step a time serie which shall be subsequently analysed may be optionally filtered before (e.g. bandpass filter);
• thereafter a (semi-) automatic computation of tidal characteristic numbers will be carried through; for this step some user prescribed parameters are required;
• if necessary also a comparative analysis is carried through.

Program(s) to run before this Program

EXCELENZ, FFT, MESKOR, TSCALC, XTRDATA, ZEITRIO

Program(s) to run after this Program

TDKTIE

Additional Information

Language

Fortran90

Additional software

-

Original Version

G. Lang, P. Schade, I. Uliczka

Maintenance

working group PRE

Documentation/Literature

please refer to $PROGHOME/examples/tidken/

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