tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_nitrogen_in_sea_water_due_to_net_primary_production_by_diatoms mol m-3 s-1 [MM3S] The phrase "tendency_of_X" means derivative of X with respect to time. "Mole concentration" means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical species or biological group denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". Particulate means suspended solids of all sizes. Particulate organic matter (also called POM) means organic matter that does not pass through a reference filter pore size. "Organic matter" means material which is derived from living organisms or from their biological activities. Organic matter consists of carbon-based compounds. The phrase "expressed_as" is used in the construction "A_expressed_as_B", where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Total nitrogen means nitrogen in all chemical forms. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Net primary production is the excess of gross primary production (the rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity".
Change Date: 22 Oct 2026, 8:36 a.m.
tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_nitrogen_in_sea_water_due_to_net_primary_production_by_diatoms mol m-3 s-1 [MM3S] The phrase "tendency_of_X" means derivative of X with respect to time. "Mole concentration" means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical species or biological group denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". Particulate means suspended solids of all sizes. Particulate organic matter (also called POM) means organic matter that does not pass through a reference filter pore size. "Organic matter" means material which is derived from living organisms or from their biological activities. Organic matter consists of carbon-based compounds. The phrase "expressed_as" is used in the construction "A_expressed_as_B", where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Total nitrogen means nitrogen in all chemical forms. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Net primary production is the excess of gross primary production (the rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity". Diatoms are phytoplankton with an external skeleton made of silica. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis.