CSN Assumption Names
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CSDMS Standard Names — Assumption Names
- This document provides standardized assumption names for use in Model Metadata Files (MMF). They are organized into groups.
Conserved Quantity Assumptions
- These names all end in "_conserved". See Wikipedia: Conservation Law and links therein.
angular_momentum_conserved electric_charge_conserved energy_conserved linear_momentum_conserved mass_conserved momentum_conserved potential_vorticity_conserved ######## sediment_mass_conserved water_mass_conserved
######## conserves_energy conserves_mass conserves_momentum conserves_potential_vorticity
Equations, Laws and Principles
- These all end in "_equation", "_law" or "_principle", except for the "law of the wall".
ampere_law archimedes_principle avogadro_law beer_lambert_law bernoulli_principle biharmonic_equation biot_savart_law boltzman_equation boyle_law burgers_equation cauchy_riemann_equations combined_gas_law conservation_of_energy_law ### conservation_of_mass_law ### (same as continuity_equation) conservation_of_momentum_law ### coulomb_law dalton_law darcy_law (See: Darcy's law). darcy_wiesbach_equation (hydraulic friction) einstein_field_equations euler_equation (inviscid flow) euler_lagrange_equation exner_equation faraday_law faxen_law fick_law fourier_law gauss_law_for_electricity gauss_law_for_magnetism gay_lussac_law geodesic_equation gibbs_helmholtz_equation hack_law heat_equation helmholtz_equation henry_law horton_law ideal_gas_law joule_first_law joule_second_law kepler_first_law_of_planetary_motion kepler_second_law_of_planetary_motion kepler_third_law_of_planetary_motion laplace_equation law_of_the_wall (flow resistance) lorentz_force_law manning_equation (flow resistance) mass_energy_equivalence maxwell_equations navier_stokes_equation newton_first_law_of_motion newton_law_of_cooling newton_law_of_universal_gravitation newton_second_law_of_motion newton_third_law_of_motion ohm_law planck_law poiseuille_law poisson_equation reynolds_averaged_navier_stokes_equation richards_equation (infiltration theory) schroedinger_equation snell_law stefan_boltzmann_law stokes_law thermodynamics_zeroth_law thermodynamics_first_law thermodynamics_second_law thermodynamics_third_law wien_displacement_law young_laplace_equation
Named Model-Type Assumptions
- These may be used for the <how_modeled> tag.
- These names all end in "_model".
Infiltration Process Models beven_exponential_K_infiltration_model curve_number_model ##### (HydroModeler) green_ampt_infiltration_model horton_infiltration_model richards_1d_infiltration_model richards_3d_infiltration_model smith_parlange_infiltration_model
Evaporation (and sometimes Transpiration) Process Models asce_standardized_evaporation_model #### (HydroModeler) energy_balance_evaporation_model hargreaves_evaporation_model #### (HydroModeler) penman_monteith_evaporation_model priestley_taylor_evaporation_model
Water Wave Models airy_wave_model capillary_wave_model #### ???? cnoidal_wave_model stokes_wave_model
Soil Models brooks_corey_soil_model darcy_soil_model ?###### See Equations, Laws, Etc. transitional_brooks_corey_soil_model van_genuchten_soil_model
Snowmelt Models degree_day_snowmelt_model energy_balance_snowmelt_model
Atmosphere Models ####### brutsaert_saturated_vapor_pressure_model satterlund_saturated_vapor_pressure_model
Channelized Flow Models d8_surface_flow_model diffusive_wave_model #### d_infinity_surface_flow_model #### dynamic_wave_model hydraulic_geometry_model #### (Leopold et al.) kinematic_wave_model law_of_the_wall_flow_resistance_model ##### ??? manning_flow_resistance_model ##### ??? mass_flux_flow_model muskingum_flow_routing_method (routing flow through a channel network)
Sediment Transport Models bagnold_sediment_transport_model (distinguish total load and bedload ####) einstein_sediment_transport_model komar_longshore_sediment_transport_model #### meier_peter_mueller_sediment_transport_model
Turbulence and Turbulence Closure Models See: Turbulence modeling. detached_eddy_simulation_model (DES) direct_numerical_simulation_model (DNS) (Navier-Stokes solved without a turbulence model) eddy_viscosity_model (due to Boussinesq, 1887) k_epsilon_model (due to Jones and Launder) k_omega_model (due to Kolmogorov ??) kolmogorov_statistical_turbulence_model large_eddy_simulation_model (LES) ?? ##### menter_shear_stress_transport_model prandtl_mixing_length_model (due to Prandtl) reynolds_averaged_navier_stokes_model (or reynolds_shear_stress_model) smagorinsky_model (due to Smagorinsky, 1964; for sub-grid scale eddy viscosity) spalart_allmaras_model boussinesq_buoyancy_approximation dispersion_relation (could be linear) kramers_kronig_relations
Basic Physics Models harmonic_oscillator_model simple_pendulum_model (harmonic oscillator ?) standard_particle_physics_model vibrating_string_model
Thermodynamics Models carnot_heat_engine_model (See: Carnot heat engine).
Earthquake Models rough_fault_model slider_block_model spring_block_seismic_model travelling_wave_model (include the word "earthquake"? ####)
Nonlinear Science Models bond_percolation_model (what type of lattice ??) cellular_automata_model fisher_droplet_model ising_model lattice_gas_model (or lattice_gas_automata_model ??) logistic_map_model sandpile_model (Per Bak, self-organized criticality) self_similar_tree_model site_percolation_model (what type of lattice ??)
Illumination and Shading Models See: List of common shading algorithms. blinn_phong_illumination_model cook_torrance_illumination_model flat_shading_model gouraud_shading_model lambert_illumination_model (lambert vs. lambertian) minnaert_illumination_model oren_nayer_illumination_model phong_illumination_model phong_shading_model ward_anisotropic_illumination_model
Models Not Yet Grouped frictionless general_relativity_model hagen_poiseuille (pressure drop in a pipe; laminar, viscous, incompressible) harmonic_function (solution to Laplace equation) hydraulic_jump inclined_plane power_law #### special_relativity_model unnamed_empirical_law #### VSEPR (to compute molecular geometry)
Flow-Type Assumptions
- These names all end in "_flow".
accelerating_flow boundary_layer_flow couette_flow (See: Couette flow). depth_integrated_flow (for 3D flow to 2D flow; vs. vertically_integrated_flow) electro_osmotic_flow fully_developed_turbulent_flow geostrophic_flow ###### CHECK hele_shaw_flow (See: Hele-Shaw flow). hydraulically_rough_flow hydraulically_smooth_flow hydrostatic_flow inviscid_flow (of an ideal fluid with no viscosity) isotropic_turbulent_flow laminar_flow nonaccelerating_flow nonhydrostatic_flow plug_flow (See: Plug flow). potential_flow (inviscid, as around airfoils; See Potential flow). steady_flow stokes_flow (same as "creeping flow"; See: Stokes flow). turbulent_flow unsteady_flow viscous_flow ### boussinesq_assumption ### reynolds_averaged_flow ### taylor_hypothesis
Fluid-Type Assumptions
- These names all end in "_fluid". See Wikipedia: Non-newtonian Fluid and links therein.
- The word "material" is sometimes used in place of "fluid", but here we consistently use the word "fluid".
bingham_plastic_fluid (See: | Bingham plastic). carreau_fluid compressible_fluid cross_fluid dilatant_fluid (shear thickening fluid or STF) first_order_fluid herschel_bulkley_fluid incompressible_fluid #### inviscid_fluid (non-viscous; see inviscid_flow instead) kelvin_voigt_fluid (a linear viscoelastic model; same as "kelvin_material" ?? ######) maxwell_fluid (a linear viscoelastic model) newtonian_fluid (sometimes just called "viscous_fluid" ??) nonnewtonian_fluid oldroyd_fluid (a linear viscoeleastic model; see Oldroyd-B model. power_law_fluid (generalized Newtonian, Ostward-de Waele) pseudoplastic_fluid (shear thinning) rheopectic_fluid second_order_fluid super_fluid (See: Superfluid). thixotropic_fluid (See: [1].) viscoelastic_fluid (See: Viscoelastic.) viscoplastic_fluid (See: Viscoplastic.) #### viscous_fluid (see viscous_flow instead)
General Process Assumptions
1D (Q: If richards_equation is used for infiltration, keep 1D and 3D out of how_modeled name?) 2D 3D constant_coefficients continuous continuum (continuum_hypothesis ?) differentiable differentiable_twice differentiable_three_times discontinuous dynamic_equilibrium equal_mixed_partials equilibrium ergodic flat_spacetime linear multiple_valued_function ### nonlinear orthogonal single_valued_function ### ??? spatially_uniform static_equilibrium steady_state symmetric uniform ### degenerate
Named Approximations
- These all end in "_approximation" and some can be found in other sections.
boussinesq_approximation (ocean modeling) fourier_series_approximation infiltrated_depth_approximation (infiltration modeling) power_law_approximation taylor_series_approximation wavelet_series_approximation ####
Thermodynamic Process Assumptions
- These names all end in "_process". See Wikipedia: Adiabatic Process and links therein.
adiabatic_process cyclic_process diabatic_process endoreversible_process endothermic_process (better as adjective? absorbs energy) exothermic_process (better as adjective? releases energy) irreversible_process isentropic_process (also called "reversible" ??) isethalpic_process (also isoenthalpic) isobaric_process isocaloric_process isochoric_process isothermal_process polytropic_process quasistatic_process (reversible implies quasistatic, but not conversely) reversible_process
Atmosphere Modeling Assumptions
- See additional assumptions in "CF Standard Name Assumptions" below.
boussinesq_approximation (not in CF, but see for_*) clear_sky (23 in CF) deep_snow (1 in CF) horizontal_plane_topography (for clear-sky radiation calculation, not in CF) no_aerosol_or_cloud (1 in CF) no_snow (1 in CF) rigid_lid (in CF; always related to boussinesq approximation ??) sea_level_for_geoid (4 in CF) standard_temperature_and_pressure (not in CF)
Ocean Modeling Assumptions
- See additional assumptions in "CF Standard Name Assumptions" below.
airy_wave capillary_wave cnoidal_wave deep_water_wave fully_developed_sea no_tide (2 in CF) passive_scalar (e.g. temperature and salinity, perhaps suspended sediment) ### per_unit_length_of_wave_crest shallow_water_wave shore_parallel_contours (not in CF) stokes_wave
Groundwater and Infiltration Modeling Assumptions
- See dupuit_forschheimer in Modeling Methods.
brooks_corey_soil_model ? ####
confined_aquifer ####
dupuit_assumption
homogeneous_medium (separate from isotropic ??)
horizontal_flowlines (and vertical equipotential lines)
hydraulic_gradient_equals_free_surface_gradient
hydraulic_gradient_equals_land_surface_gradient
hydraulic_gradient_invariant_with_depth
hydrostatic_pressure_head
infiltrated_depth_approximation (not in CF) (Used by Green-Ampt and Smith-Parlange)
(or infiltrability_depth_approximation)
impermeable_horizontal_base (or impermeable_boundary_at_base)
impermeable_lower_boundary (or impermeable_base)
isotropic_medium
steady_state_recharge ???
transitional_brooks_corey_soil_model ? ####
unconfined_aquifer ####
van_genuchten_soil_model ? ####
Surface Water Modeling Assumptions
bankfull_flow channel_width_less_than_model_cell_width convergent_topography convergent_or_divergent_topography ###### ? d8_flow_between_cells d_infinity_flow_between_cells diffusive_wave dynamic_wave impermeable_surface ??? inbank_flow (or no_overbank_flow ? or within_bank_flow ? ##############) kinematic_wave (hydraulic_slope_equals_channel_slope) mass_flux_method_flow_between_cells no_distributaries no_overbank_flow no_vegetation ???? prismatic_channels spatially_uniform_rainfall #### instantaneous_unit_hydrograph idea ???
Stochastic Model Assumptions
autoregressive beta_distributed binomial_distributed compound_poisson_process continuous continuous_time discrete discrete_time gaussian_distributed homogeneous identically_distributed independent independent_increments #### independent_and_identically_distributed (use both) linear_least_squares_regression markov_process moving_average negative nonlinear_least_squares_regression nonnegative pareto_distributed poisson_distributed poisson_process positive rayleigh_distributed second_order_stationary stationary uniform_distributed uncorrelated weak_stationarity_of_order_k weibull_distributed
Object Shape Assumptions
- Most of these names end in "_shaped".
circle_shaped concave concave_upward (long profiles) convex ellipse_shaped ellipsoid_shaped (e.g. for earth) hexagon_shaped hyperbola_shaped octogon_shaped parabola_shaped pentagon_shaped prismatic (see Channel Flow) rectangle_shaped semicircle_shaped (e.g. for a channel_cross_section) sphere_shaped square_shaped trapezoid_shaped (e.g. for a channel_cross_section) What about these? (See General Process Assumptions.) continuous_curve continuous_surface differentiable_curve differentiable_surface differentiable_twice_curve differentiable_twice_surface
"What about assumptions on functional form?"
exponential logarithmic
Averaging Assumptions
- These names all start with "averaged_over_".
averaged_over_basin averaged_over_depth averaged_over_interval averaged_over_one_day averaged_over_one_month averaged_over_one_year averaged_over_population averaged_over_space averaged_over_time
Numerical Method Assumptions
- These names should all end with something like "_method".
analytic_element_method (See: Analytic element method). arakawa_a_grid (unstaggered) arakawa_b_grid (staggered) arakawa_c_grid (staggered) arakawa_d_grid (staggered, rotated 90 degrees) arakawa_e_grid (staggered, rotated 45 degrees) backward_difference_scheme boundary_element_method (See: Boundary element method). central_difference_scheme characteristics_method (known as "method of characteristics") conjugate_gradient_method direct_numerical_solution discrete_event_simulation euler_method explicit_time_stepping_method finite_difference_method finite_element_method finite_volume_method first_order_accurate forward_difference_scheme forward_time_centered_space_scheme (FTCS scheme) halley_method implicit_time_stepping_method large_eddy_simulation leapfrog_method newton_raphson_method (see "halley_method") runge_kutta second_order_accurate ### staggered_grid (already in arakawa system ??) upwind_scheme
CF Standard Name Assumptions
- Many of these are "Location Assumptions".
above_geoid (3 in CF)
above_land_surface (not in CF)
above_reference_datum (1 in CF)
above_reference_ellipsoid (5 in CF)
above_sea_floor (1 in CF)
above_sea_floor_surface (not in CF)
above_sea_level (1 in CF)
above_threhold (5 in CF)
at_*** (51 in CF)
at_cloud_base (1 in CFFl
at_cloud_top (3 in CF)
at_equilibrium (not in CF)
at_freezing_level (1 in CF)
at_land_surface (not in CF; e.g. air pressure)
at_maximum_upward_derivative (1 in CF)
at_saturation (4 in CF)
at_sea_floor (3 in CF)
at_sea_floor_surface (not in CF; e.g. water pressure)
at_sea_ice_base (8 in CF)
at_sea_level (1 in CF)
at_top_of_*** (3 in CF)
at_bottom_*** (not in CF)
assuming_*** (32 in CF)
(insert as a prefix to everything in this block ??)
below_geoid (1 in CF)
below_sea_level (1 in CF)
below_sea_surface (1 in CF)
below_surface (1 in CF)
below_threshold (3 in CF)
between_air_and_sea_water (1 in CF)
between_sea_water_and_air (2 in CF)
due_to_*** (399 in CF)
due_to_all_land_processes (2 in CF)
due_to_convective_cloud (1 in CF)
due_to_diffusion (18 in CF)
due_to_dry_convection (1 in CF)
due_to_dry_deposition (35 in CF)
due_to_dry_troposphere (1 in CF)
due_to_dust_ambient_aerosol (2 in CF)
due_to_emission_from_grazing (in CF)
excluding_anthropogenic_land_use_change (in CF)
excluding_baseflow (in CF)
excluding_litter (in CF)
expressed_as_*** (140 in CF)
expressed_as_carbon (67 in CF)
expressed_as_chlorine (7 in CF)
expressed_as_nitrogen (24 in CF)
for_*** (13 in CF)
for_biomass_growth (1 in CF)
for_biomass_maintenance (1 in CF)
for_boussinesq_approximation (1 in CF)
for_momentum (2 in CF; both "for_momentum_in_air")
per_capita
per_unit_area (already used in CF)
per_unit_length_of_wave_crest
per_unit_mass (already used in CF, and synonym for "specific")
per_unit_time ??
per_unit_width (e.g. discharge_per_unit_width)
(see CF: sea_water_transport_across_line,
and "transport_across_unit_distance")
