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marelac (version 2.1.5)

Tools for Aquatic Sciences

Description

Datasets, constants, conversion factors, utilities for MArine, Riverine, Estuarine, LAcustrine and Coastal science. The package contains among others: (1) chemical and physical constants and datasets, e.g. atomic weights, gas constants, the earths bathymetry; (2) conversion factors (e.g. gram to mol to liter, barometric units, temperature, salinity); (3) physical functions, e.g. to estimate concentrations of conservative substances, gas transfer and diffusion coefficients, the Coriolis force and gravity; (4) thermophysical properties of the seawater, as from the UNESCO polynomial or from the more recent derivation based on a Gibbs function.

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Version

Install

install.packages('marelac')

Monthly Downloads

474

Version

2.1.5

License

GPL (>= 2)

Maintainer

Karline Soetaert

Last Published

September 4th, 2015

Functions in marelac (2.1.5)

diffcoeff

Molecular Diffusion Coefficients
air_spechum

Air specific humidity
convert_StoCl

Salinity-Chlorinity Conversion
molweight

Molecular Weight of a Chemical Species
marelac-package

Tools for Aquatic Sciences
sw_depth

Water Depth
sw_tfreeze

Freezing Temperature of Seawater
gas_O2sat

Saturation Concentration of Oxygen in Water
Oceans

Useful Characteristics of the Oceans
sw_tpot

Potential Temperature of Seawater
convert_T

Conversion Between Different Temperature Units
convert_StoR

Salinity-Conductivity Conversion
sw_sfac

Salinity conversion factors
atmComp

Atmospheric Gas Composition
convert_p

Conversion Between Different Barometric Units
viscosity

Shear Viscosity of Water
coriolis

The Coriolis Force as a Function of Latitude
convert_salinity

Practical - Absolute Salinity Conversions
sw_gibbs

Gibbs Function of Seawater
vapor.hPa

Vapor Pressure
gas_schmidt

The Schmidt Number for Gases in Seawater
vertmean

Vertical Volume Weighted Mean of Matter Concentrations in Water Bodies
sw_dens

Density of Sea Water
gravity

Gravity on Earth
sw_kappa

Isentropic Compressibility of Seawater
sw_beta

Haline Contraction Coefficient of Seawater
sw_conserv

Concentrations of (Conservative) Species in Seawater
gas_satconc

Saturated Concentrations of Gases in Water
sw_comp

Reference Sea Salt Composition
earth_surf

Surface of 1 dg by 1 dg Cells of the Earth
sw_adtgrad

Adiabatic Temperature Gradient in Seawater
sw_entropy

Specific Entropy of Seawater
AtomicWeight

The Atomic Weights of Chemical Elements
vapor

Saturation Water Vapor Pressure
sw_cp

Heat Capacity of Sea Water
air_density

Air Density
gas_solubility

Solubility Parameters
redfield

Redfield Ratio Calculator
molvol

Mol to Liter Conversion for a Gas
ssd2rad

Estimate Global Radiation from Measured Sunshine Duration Time
gas_transfer

The Gas Transfer Coefficient in m/sec
sw_alpha

Thermal Expansion Coefficient of Seawater
sw_enthalpy

Specific Enthalpy of Seawater
sw_kappa_t

Isothermal Compressibility of Seawater
Constants

Useful Physical and Chemical Constants
convert_RtoS

Conductivity-Salinity Conversion
marelac-internal

Internal Functions of the marelac Package
Bathymetry

World Bathymetric Data
sw_svel

Velocity of the Sound in Seawater