## Characteristic Numbers of Bed Load Transport (independent of tides)

### From BAWiki

##### Revision as of 09:55, 12 February 2016 by imported>Lang Guenther (→Definitions for the tide-independent characteristic numbers of bed load transport: characteristic numbers computed by NCANALYSE added to page)

A graphic sketch for the definition of the various tidal characteristic numbers of bed load transport is not available. Due to the fact that they are defined in complete analogy to salinity we do refer here to the respective graphical representations of the characteristic numbers of salinity (independent of tides) for further insight.

## Contents

- 1 Motivation
- 2 Definitions for the tide-independent characteristic numbers of bed load transport
- 2.1 Analysis Program NCANALYSE
- 2.1.1 Maximum Bedload Transport
- 2.1.2 Residual Bedload Transport
- 2.1.3 Mean Magnitude of Bedload Transport
- 2.1.4 Standard Deviation of Bedload Transport
- 2.1.5 Variance of Bedload Transport
- 2.1.6 Duration of High Bedload Transport
- 2.1.7 Duration of Low Bedload Transport
- 2.1.8 Relative Frequency Distribution of Bedload Transport
- 2.1.9 Cumulative Frequency Distribution of Bedload Transport
- 2.1.10 Exceedance Frequency of Bedload Transport
- 2.1.11 Underflow Frequency of Bedload Transport Limits
- 2.1.12 Quantiles of Bedload Transport

- 2.2 Analysis Program LZKSF

- 2.1 Analysis Program NCANALYSE

## Motivation

Calculation and graphic display of several tide-independent characteristic numbers of bed load transport can yield additional insight into bed load transport related phenomena of natural coastal and/or inland waters. In contrast to the computation of the tidal characteristic numbers of bed load transport 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 bed load transport may deviate strongly from the average (tide-dominated) conditions, as well as for the
- determination of characteristic values of bed load transport for an arbitrary long (or short) period of time.

**An automatic analysis of all tide-independent characteristic numbers of bed load transport is carried through by the computer programs LZKSF and NCANALYSE.**

## Definitions for the tide-independent characteristic numbers of bed load transport

### Analysis Program NCANALYSE

#### Maximum Bedload Transport

Highest (local) value of bedload transport (vector) within the period of data analysis.

No example figure available so far.

Data analysis: NCANALYSE.

#### Residual Bedload Transport

Residual value of bedload transport (computed from addition of vectors) within the period of data analysis.

No example figure available so far.

Data analysis: NCANALYSE.

#### Mean Magnitude of Bedload Transport

Mean magnitude of bedload transport (scalar) within the period of data analysis.

No example figure available so far.

Data analysis: NCANALYSE.

#### Standard Deviation of Bedload Transport

Standard deviation of bedload transport within the period of data analysis.

No example figure available so far.

Data analysis: NCANALYSE.

#### Variance of Bedload Transport

Variance of bedload transport within the period of data analysis.

No example figure available so far.

Data analysis: NCANALYSE.

#### Duration of High Bedload Transport

Period of the time during which local bedload transport lies above a given bedload transport limit.

No example figure available so far.

Data analysis: NCANALYSE.

#### Duration of Low Bedload Transport

Period of the time during which local bedload transport lies below a given bedload transport limit.

No example figure available so far.

Data analysis: NCANALYSE.

#### Relative Frequency Distribution of Bedload Transport

Relative frequency of bedload transport for given bedload transport intervals.

No example figure available so far.

Data analysis: NCANALYSE.

#### Cumulative Frequency Distribution of Bedload Transport

Cumulative frequency of bedload transport for given bedload transport intervals.

No example figure available so far.

Data analysis: NCANALYSE.

#### Exceedance Frequency of Bedload Transport

Exceedance frequency of bedload transport limits within the period of data analysis.

No example figure available so far.

Data analysis: NCANALYSE.

#### Underflow Frequency of Bedload Transport Limits

Underflow frequency of bedload transport limits within the period of data analysis.

No example figure available so far.

Data analysis: NCANALYSE.

#### Quantiles of Bedload Transport

Bedload transport magnitude of a time serie which is not exceeded by a certain percentage of bedload transport values.

No example figure available so far.

Data analysis: NCANALYSE.

### Analysis Program LZKSF

#### Advective Transport of Bed Load

Volume of bed load, which is transported through a cross section over a period of time.

Example: not available.

#### Mean Advective Bed Load Transport

Mean value of bed load transport within a period of time.

Example: not available.

#### Maximum Advective Bed Load Transport

Highest value of bed load transport within a period of time.

Example: not available.

#### Minimum Advective Bed Load Transport

Lowest value of bed load transport within a period of time.

Example: not available.

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