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Salinity at Moment of Slack Water Formula

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Salinity at the Moment of Slack Water refers to the salinity level measured during the tide's turning point, when there is minimal or no horizontal movement of tidal water. Check FAQs

Ss = S \cdot \exp (- (18 \cdot 10^{- 6}) \cdot Q r \cdot x^{2} - (0.045 \cdot {Q r}^{0.5}))

Ss - Salinity at the Moment of Slack Water?S - Salinity of Water?Q_r - Fresh Water River Flow?x - Coordinate along the Channel?

Salinity at Moment of Slack Water Example

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Here is how the Salinity at Moment of Slack Water equation looks like with Values.

Here is how the Salinity at Moment of Slack Water equation looks like with Units.

Here is how the Salinity at Moment of Slack Water equation looks like.

0.0294 = 33.33 \cdot \exp (- (18 \cdot 10^{- 6}) \cdot 5 \cdot 17^{2} - (0.045 \cdot 5^{0.5}))

0.0294 = 33.33mg/L \cdot \exp (- (18 \cdot 10^{- 6}) \cdot 5m³/s \cdot {17m}^{2} - (0.045 \cdot {5m³/s}^{0.5}))

0.0294 = 33.33 \cdot \exp (- (18 \cdot 10^{- 6}) \cdot 5 \cdot 17^{2} - (0.045 \cdot 5^{0.5}))

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Salinity at Moment of Slack Water Solution

Follow our step by step solution on how to calculate Salinity at Moment of Slack Water?

FIRST Step Consider the formula

Ss = S \cdot \exp (- (18 \cdot 10^{- 6}) \cdot Q r \cdot x^{2} - (0.045 \cdot {Q r}^{0.5}))

Next Step Substitute values of Variables

∴

Ss = 33.33mg/L \cdot \exp (- (18 \cdot 10^{- 6}) \cdot 5m³/s \cdot {17m}^{2} - (0.045 \cdot {5m³/s}^{0.5}))

Next Step Convert Units

∴

Ss = 0.0333kg/m³ \cdot \exp (- (18 \cdot 10^{- 6}) \cdot 5m³/s \cdot {17m}^{2} - (0.045 \cdot {5m³/s}^{0.5}))

Next Step Prepare to Evaluate

∴

Ss = 0.0333 \cdot \exp (- (18 \cdot 10^{- 6}) \cdot 5 \cdot 17^{2} - (0.045 \cdot 5^{0.5}))

Next Step Evaluate

∴

Ss = 0.0293656267837522

LAST Step Rounding Answer

∴

Ss = 0.0294

Salinity at Moment of Slack Water Formula Elements

Variables

Functions

Salinity at the Moment of Slack Water

Salinity at the Moment of Slack Water refers to the salinity level measured during the tide's turning point, when there is minimal or no horizontal movement of tidal water.

Symbol: Ss

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Salinity at the Moment of Slack Water

Salinity of Water

Salinity of Water is the saltiness or amount of salt dissolved in a body of water, called saline water (see also soil salinity).

Symbol: S

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find Salinity of Water

Fresh Water River Flow

Fresh Water River Flow is the degree of mixing in an estuary and can be approximately related to the ratio between the volume of the tidal prism and the river flow.

Symbol: Q_r

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Fresh Water River Flow

Coordinate along the Channel

Coordinate along the Channel refers to the distance measured along the length of the channel from a reference point, such as the upstream end of the channel.

Symbol: x

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Coordinate along the Channel

exp

n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable.

Syntax: exp(Number)

Other formulas in Salinity Variations with Tide category

Go Mixing Parameter

M = \frac{Q r \cdot T}{P}

Go Volume of Tidal Prism given Mixing Parameter

P = \frac{Q r \cdot T}{M}

Go Fresh Water River Flow given Mixing Parameter

Q r = \frac{M \cdot P}{T}

Go Tidal Period given Mixing Parameter

T = \frac{M \cdot P}{Q r}

How to Evaluate Salinity at Moment of Slack Water?

Salinity at Moment of Slack Water evaluator uses Salinity at the Moment of Slack Water = Salinity of Water*exp(-(18*10^-6)*Fresh Water River Flow*Coordinate along the Channel^2-(0.045*Fresh Water River Flow^0.5)) to evaluate the Salinity at the Moment of Slack Water, The Salinity at Moment of Slack Water formula is defined as the salinity at a short period in a body of tidal water when the water is completely unstressed, and there is no movement either way in the tidal stream, and which occurs before the direction of the tidal stream reverses. Salinity at the Moment of Slack Water is denoted by Ss symbol.

How to evaluate Salinity at Moment of Slack Water using this online evaluator? To use this online evaluator for Salinity at Moment of Slack Water, enter Salinity of Water (S), Fresh Water River Flow (Q_r) & Coordinate along the Channel (x) and hit the calculate button.

FAQs on Salinity at Moment of Slack Water

What is the formula to find Salinity at Moment of Slack Water?

The formula of Salinity at Moment of Slack Water is expressed as Salinity at the Moment of Slack Water = Salinity of Water*exp(-(18*10^-6)*Fresh Water River Flow*Coordinate along the Channel^2-(0.045*Fresh Water River Flow^0.5)). Here is an example- 0.029366 = 0.03333*exp(-(18*10^-6)*5*17^2-(0.045*5^0.5)).

How to calculate Salinity at Moment of Slack Water?

With Salinity of Water (S), Fresh Water River Flow (Q_r) & Coordinate along the Channel (x) we can find Salinity at Moment of Slack Water using the formula - Salinity at the Moment of Slack Water = Salinity of Water*exp(-(18*10^-6)*Fresh Water River Flow*Coordinate along the Channel^2-(0.045*Fresh Water River Flow^0.5)). This formula also uses Exponential Growth (exp) function(s).

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Salinity at Moment of Slack Water Formula

Salinity at Moment of Slack Water Example

Salinity at Moment of Slack Water Solution

Salinity at Moment of Slack Water Formula Elements

Other formulas in Salinity Variations with Tide category

How to Evaluate Salinity at Moment of Slack Water?

FAQs on Salinity at Moment of Slack Water

Variable Name