surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_all_land_processes_including_total_riverine_carbon_export_to_ocean kg m-2 s-1
Change Date: 9 Apr 2026, 3:33 p.m.
surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_all_land_processes_including_total_riverine_carbon_export_to_ocean kg m-2 s-1 [KSP2] Flux of carbon from the atmosphere to the land surface due to all land processes as well as riverine carbon exported from the land to the ocean. "All land processes" means plant and soil respiration, photosynthesis, animal grazing, crop harvesting, natural fires and anthropogenic land use change. "Anthropogenic land use change" means human changes to land, excluding forest regrowth. It includes fires ignited by humans for the purpose of land use change and the processes of eventual disposal and decomposition of wood products such as paper, cardboard, furniture and timber for construction. "Riverine carbon export to the ocean" means dissolved or particulate carbon transported from land ecosystems via rivers to the ocean.
Change Date: 17 Apr 2026, 4:32 p.m.
surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_all_land_processes_and_soil_loss_of_carbon_due_to_leaching_and_runoff kg m-2 s-1 [KSP2] Flux of carbon from the atmosphere to the land surface due to all land processes as well as riverine carbon exported from the land to the ocean. "All land processes" means plant and soil respiration, photosynthesis, animal grazing, crop harvesting, natural fires and anthropogenic land use change. "Anthropogenic land use change" means human changes to land, excluding forest regrowth. It includes fires ignited by humans for the purpose of land use change and the processes of eventual disposal and decomposition of wood products such as paper, cardboard, furniture and timber for construction. "Riverine carbon export to the ocean" means dissolved or particulate carbon transported from land ecosystems via rivers to the ocean.
Change Date: 17 Apr 2026, 4:41 p.m.
surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_all_land_processes_and_soil_loss_of_carbon_due_to_leaching_and_runoff kg m-2 s-1 [KSP2] This quantity is the flux of carbon from the atmosphere to the land surface due to all land processes, plus an additional term in which carbon is leached from the land and is therefore not available to be re-released to the atmosphere. The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). Net downward mass flux is the difference between downward_mass_flux and upward_mass_flux. 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. 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. "All land processes" means plant and soil respiration, photosynthesis, animal grazing, crop harvesting, natural fires and anthropogenic land use change. "Anthropogenic land use change" means human changes to land, excluding forest regrowth. It includes fires ignited by humans for the purpose of land use change and the processes of eventual disposal and decomposition of wood products such as paper, cardboard, furniture and timber for construction. "Leaching" means the loss of water soluble chemical species from soil. Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage. The chemical formula for carbon dioxide is CO2.
Change Date: 17 Apr 2026, 4:45 p.m.
surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_all_land_processes_and_soil_loss_of_carbon_due_to_leaching_and_runoff kg m-2 s-1 [KSP2] This quantity is the flux of carbon from the atmosphere to the land surface due to all land processes, plus an additional term in which carbon is leached from the land and is therefore not available to be re-released to the atmosphere. The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). Net downward mass flux is the difference between downward_mass_flux and upward_mass_flux. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. 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. 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. "All land processes" means plant and soil respiration, photosynthesis, animal grazing, crop harvesting, natural fires and anthropogenic land use change. "Anthropogenic land use change" means human changes to land, excluding forest regrowth. It includes fires ignited by humans for the purpose of land use change and the processes of eventual disposal and decomposition of wood products such as paper, cardboard, furniture and timber for construction. "Leaching" means the loss of water soluble chemical species from soil. Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage. The chemical formula for carbon dioxide is CO2.