Concept

Alkalinity, acidity and pH of the water column

URI	http://vocab.nerc.ac.uk/collection/P02/current/ALKY/
Within Vocab	SeaDataNet Parameter Discovery Vocabulary
Alternative Labels	WC_Alk+Ac+pH
Definition	Parameters quantifying the hydrogen ion concentration in water bodies
Date	2008-08-15T10:11:46
Identifier	SDN:P02::ALKY
Note	accepted
Has Current Version	2
Version	1
version	2
inScheme	http://vocab.nerc.ac.uk/scheme/EDMED_DCAT_THEMES/current/
Broader	`D01:D0100001`	Parameters
	`L19:005`	theme
	`P05:014`	oceans
	`P22:28`	Oceanographic geographical features
	`L04:L04001`	water body
	`P36:ACIDIT`	Acidity
	`P03:C010`	Carbonate system
Narrower	`P07:CF14N4`	integral_wrt_depth_of_tendency_of_sea_water_alkalinity_expressed_as_mole_equivalent
	`P07:CF14N122`	tendency_of_sea_water_alkalinity_expressed_as_mole_equivalent_due_to_biological_processes
	`P07:CF14N5`	integral_wrt_depth_of_tendency_of_sea_water_alkalinity_expressed_as_mole_equivalent_due_to_biological_processes
	`P07:CF14N55`	sea_water_alkalinity_expressed_as_mole_equivalent
	`P07:CF14N56`	sea_water_ph_reported_on_total_scale
	`P01:ALKYSPTX`	Total alkalinity per unit volume of the water body by spectrophotometry
	`P01:PHXXPR01`	pH (unspecified scale) of the water body by pH electrode
	`P01:PHTLSDWC`	pH (total scale) standard deviation {pH[T]} of the water body by computation
	`P01:ALKYPOTX`	Total alkalinity per unit volume of the water body by potentiometry
	`P01:PHSWWCAL`	pH (seawater scale) {pH[SWS]} of the water body by computation
	`P64:G878`	EARTH SCIENCE > Oceans > Ocean Chemistry > Alkalinity
	`P01:PHTLWCAL`	pH (total scale) {pH[T]} of the water body by computation
	`P01:PHNBECAL`	pH (NBS scale) {pH[NBS]} of the experiment water sample by computation
	`P04:G688`	EARTH SCIENCE > Hydrosphere > Water Quality/Water Chemistry > pH
	`P01:PHFRSXXX`	pH (free scale) {pH[F]} of the water body
	`P01:PHXXSP01`	pH (unspecified scale) of the water body by spectrophotometry
	`P01:ALSDPOTK`	Total alkalinity standard deviation per unit mass of the water body by potentiometry
	`P01:ALKYPOTK`	Total alkalinity per unit mass of the water body by potentiometry
	`P01:ALSDPOTX`	Total alkalinity standard deviation per unit volume of the water body by potentiometry
	`P01:ACIDZZXX`	Acidity of the water body
	`P01:MDMASD14`	Total alkalinity standard deviation per unit mass of the water body
	`P01:MDMAP014`	Total alkalinity per unit mass of the water body
	`P01:PHFRSDWC`	pH (free scale) standard deviation {pH[F]} of the water body by computation
	`P01:ALKYMP02`	Total alkalinity per unit volume of the sediment pore water by model prediction
	`P01:TASDWCAL`	Total alkalinity standard deviation {TA} per unit mass of the water body by computation
	`P01:TALKWCAL`	Total alkalinity {TA} per unit mass of the water body by computation
	`P01:PHXXZZXX`	pH (unspecified scale) of the water body
	`P01:PHXXSP02`	pH (total scale) {pH[T]} of the water body by spectrophotometry
	`P01:PHSWSXXX`	pH (seawater scale) {pH[SWS]} of the water body
	`P04:G903`	EARTH SCIENCE > Oceans > Ocean Chemistry > pH
	`P01:PHXXSP05`	pH (total scale) {pH[T]} of the water body by spectrophotometry (external electrode) and manufacturer's calibration and correction against independent temperature and salinity measurements
	`P01:PHXXSP03`	pH (total scale) {pH[T]} of the water body by spectrophotometry (internal electrode) and manufacturer's calibration applied
	`P01:PHTLMP01`	pH (total scale) {pH[T]} of the water body by model prediction
	`P01:PHXXZZYY`	pH (NBS scale) of the water body by Gran titration and Mackereth et al. (1978) freshwater analysis method and standardisation to NBS scale
	`P04:G878`	EARTH SCIENCE > Oceans > Ocean Chemistry > Alkalinity
	`P01:PHTLSX25`	pH (total scale at zero pressure and 25 degrees Celsius) {pH[T]} per unit mass of the water body
	`P01:PHXXSP06`	pH (total scale) {pH[T]} of the water body by spectrophotometry (internal electrode) and manufacturer's calibration and correction against independent temperature and salinity measurements
	`P01:PHXXSP07`	pH (total scale) {pH[T]} of the water body by spectrophotometry (external electrode) and manufacturer's calibration and laboratory calibration against TRIS-buffer applied
	`P01:PHNSECAL`	pH (NBS scale) standard deviation {pH[NBS]} of the experiment water sample by computation
	`P01:PHSPWX01`	pH (unspecified scale) of the groundwater [dissolved plus reactive particulate phase] by pH electrode
	`P01:PHMASSXX`	pH (total scale) {pH[T]} of the water body
	`P01:PHSWECAL`	pH (seawater scale) {pH[SWS]} of the experiment water sample by computation
	`P01:PHFRWCAL`	pH (free scale) {pH[F]} of the water body by computation
	`P01:ALKYMP01`	Total alkalinity per unit volume of the water body by model prediction
	`P01:ALKYZZXX`	Total alkalinity per unit volume of the water body
	`P01:PHMASSSD`	pH (total scale) standard deviation of the water body
	`P01:ALKGWX01`	Total alkalinity of the groundwater [dissolved plus reactive particulate phase] by titration against standardised acid
	`P01:ALKYZZYY`	Total alkalinity per unit volume of the water body by Gran titration and Mackereth et al. (1978) freshwater analysis method
	`P01:PHXXSP04`	pH (total scale) {pH[T]} of the water body by spectrophotometry (external electrode) and manufacturer's calibration applied
	`P01:PHTLMP02`	pH (total scale) {pH[T]} of the sediment pore water by model prediction
	`P01:PHFSECAL`	pH (free scale) standard deviation {pH[F]} of the experiment water sample by computation
	`P01:PHNBWCAL`	pH (NBS scale) {pH[NBS]} of the water body by computation
	`P64:G903`	EARTH SCIENCE > Oceans > Ocean Chemistry > pH
	`P01:PHNBSDWC`	pH (NBS scale) standard deviation {pH[NBS]} of the water body by computation
	`P09:ALKW`	ALKALINITY
	`P04:G672`	EARTH SCIENCE > Hydrosphere > Water Quality/Water Chemistry > Alkalinity
	`P09:PHPH`	PH
	`P01:ALKYTID1`	Total alkalinity per unit volume of the water body by filtration and titration against standardised acid
	`P01:PHSSECAL`	pH (seawater scale) standard deviation {pH[SWS]} of the experiment water sample by computation
	`P01:PHFRECAL`	pH (free scale) {pH[F]} of the experiment water sample by computation
	`P01:PHSWSDWC`	pH (seawater scale) standard deviation {pH[SWS]} of the water body by computation
	`P09:ALKY`	ALKALINITY

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