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SWMF/20180525/ROR/Hannah_Zhang_022523_1

Run Description 

CCMC ROR run for SWMF 20180525 with RORID Hannah_Zhang_022523_1

Simulation Time:

Simulation Start Time: 2000-01-01T00:00:00Z
Simulation End Time: 2000-01-01T02:00:00Z
Time Step in second: 1800
Simulation Time Description:
Simulation Time Caveats:

Temporal Dependence (whether the outputs of the simulation code are time-dependent?): true

Regions:

Earth.Magnetosphere
Earth.Magnetosphere.Magnetotail
Earth.Magnetosphere.Main
Earth.Magnetosphere.RadiationBelt
Earth.NearSurface.AuroralRegion
Earth.NearSurface.PolarCap

Simulation Domain :

Coordinate System:
    Coordinate Representation:Cartesian CoordinateSystemName: GSM
Simulation Domain Description: Rectangular box containing magnetosphere.
Simulation Domain Caveats: Near-Earth boundary above ionosphere and current layer.
Spatial Dimension: 3
Velocity Dimension: 1
Field Dimension: 1
Units: R_E
Coordinates Label: X, Y, Z
Valid Min: -1000
Valid Max: 1000
Grid Structure: Block-adaptive octree.
Grid Cell Size: 0.0
Symmetry: None
Boundary Condition:
    Boundary Type: FieldBoundary
    Front Wall: inflow
    Back Wall: outflow
    Side Wall: outflow
    Obstacle: no flow

Contacts :

Hannah.Zhang, ModelUser

List of Run Input Parameter Grouping and their associated properties :

Name Description Caveats Properties
Solar wind inputs 
Time-dependent solar wind plasma and magnetic field inputs.
 Solar wind inputs are derived from a single spacecraft usually 200 R_E upstream of the sun-ward (front) simulation box boundary.
Name Description Caveats Units Default Value or Actual Value Valid Min Valid Max
N 
Solar wind plasma density.
 Mass density described in terms of number of protons per cubic centimeter. AMU/cm^3 7.2 0.1 100
T 
Solar wind plasma temperature.
 Derived from observed distribution of solar wind particles. Can fluctuate widely when density N is at or below 1 AMU/cm^3. K 200000 10000 2000000
Vx 
Sun-Earth component of solar wind velocity.
 Low solar wind speed (less than 200 km/s in magnitude) usually indicates poor statistics in the solar wind plasma measurements. km/s -500 -3000 -200
Vy 
Plasma velocity in dawn-dusk direction.
 The orbital velocity of Earth (about 29 km/s) is usually neglected. km/s 0 -500 500
Vz 
Solar wind plasma velocity in north-south direction.
 km/s 0 -500 500
Bx 
Sun-Earth component of solar wind magnetic field.
 Bx is usually held constant (zero or average of observed values) to conserve div.B at the front boundary. Alternatively, oblique phase fronts can be assumed that update solar wind conditions along those fronts throughout the front boundary. Bx is then approximated as a linear combination of time dependent By and Bz. nT 0 -100 100
By 
Dawn-dusk component of solar wind magnetic field.
 nT 0 -100 100
Bz 
North-south component of the solar wind magnetic field. 
B_z is most important magnetic field component to drive or inhibit geomagnetic activity.
Other components play a role in connection with the orientation of the Earth's dipole field.
 nT -5 -100 100
sw_source 
Name of the spacecraft or data source used to generate solar wind input information.
Currently one of ACE-RT ACE-L2, WIND, OMNI, DSCOVR (real time)
 User-submitted data may be from any source or made-up. user-defined
solarwind 
Flag indicating whether solar wind data are constant (initial values) or variable (var).
 fixed const var
constant-Bx 
Constant Bx value fed into the front boundary of the simulation.
 nT 0
By-coefficient 
Coefficient for By in linear combination approximating Bx: 
Bx ~ constant-Bx + By-coefficient*By + Bz-coefficient*Bz
 0 -1 1
Bz-coefficient 
Coefficient for Bz in linear combination approximating Bx: Bx ~ constant-Bx + By-coefficient*By + Bz-coefficient*Bz
 0 -1 1
SW density floor 
Lowest value of N applied during pre-processing of solar wind input data.
 The density floor in the solar wind varies by magnetosphere model and it's numerical stability. A similar floor may be imposed inside the magnetotail lobes where the density may drop lower than in the solar wind. AMU/cm^3 0.1 0.1 2.5
despike_solar_wind_data 
Flag indicating whether to automatically de-spike solar wind (optional for automatically retrieved data only; use when solar wind data shown in next page have clusters of extreme values in plasma density, temperature or velocity).
 Despiking is performed during preprocessing of solar wind inputs. The option is available during run -on request submission on the CCMC web site. True 0 1
despike.threshold 
De-spike threshold (standard deviations)
 sigmas 2 4
despike.number_of_samples 
De-spike length (number of samples in cluster of extreme values to be eliminated)
 3 9
setting_option_for_Bx 
Indicates how solar wind Bx is set: set Bx to a specified constant ('user'), set Bx to the initial solar wind data value ('init'), or use average Bx from solar wind data ('auto').
 auto
SW_density_floor_was_applied 
Flag indicating the solar wind density has been floored with SW_density_floor value to ensure that the model will run through the requested time interval.
 False
minimum_SW_Fast-Mode_mach_number 
Minimum solar wind Fast-Mode mach number
 7.53
SW_parameters_are_large 
Flag indicating whether solar wind velocity, density or dynamic pressure are large. If they are, the run is a special request requiring attention by CCMC staff. The variables will be accepted unless they exceed certain absolute maximum values.
b_abs 
Magnitude of transverse solar wind magnetic field b_abs=sqrt(B_y^2 + B_z^2)
 nT 5 0 100 (100000 for EXO)
b_angle 
Clock angle of transverse solar wind magnetic field orientation, measured from northward direction. b_angle=atan(B_y,B_z) cast into range from 0 to 360 degrees.
 degree 180 0 360
Ionosphere conductance model 

						
						
						
												 
						
							

								
									

										Name
										Description
										Caveats
										Units
										Default Value or Actual Value
										Valid Min
										Valid Max
									

								
								
								
								

									f10.7
									
Solar irradiation index as represented by the flux of 10.7 cm (2800 MHz) radiation from the Sun measured in units of 10−22 W⋅m−2⋅Hz−1. 

									Daily index of solar radiation that affects the daytime background conductivity in the ionosphere.
									sfu
									150
									50
									300
									
								

								
								

									iono_conductance
									
Parameter indicationg selection of conductance model in the ionosphere electrodynamics component of the model.

									The two models offered for run-on-request are constant (user sets Pedersen Conductance and Hall Conductance) and auroral (conducances driven by f10.7 and field-aligned currents from magnetosphere part of the model).
									
									auroral
									constant
									auroral
									
								

								
								

									Pedersen Conductance
									
Value of constant user-selected Pedersen Conductance in the ionosphere.

									
									S
									
									1
									100
									
								

								
								

									Hall Conductance
									
Value of constant user-selected Hall Conductance in the ionosphere.

									
									S
									
									0
									100
									
								

								
								

									IE_model
									
Ionospheric electrodynamics potential solver model name

									
									
									
									
									
									
								

								
								

									IE_version
									
Ionospheric electrodynamics potential solver model version

									
									
									1.10
									
									
									
								

								
								
							

						
						
						
					

				
					

						Magnetosphere model parameters
						

						
						
						
												 
						
							

								
									

										Name
										Description
										Caveats
										Units
										Default Value or Actual Value
										Valid Min
										Valid Max
									

								
								
								
								

									grid
									
Grid definition referred to by number of cells.
The grids for the different global magnetosphere models are listed in a file GM_grids.txt.

									The design of SWMF grids is limitless and cannot be represented adequately with a single parameter. 
									
									high-resolution grid with 9,623,552 cells
									overwiew grid with 755136 cells
									1/8 R_E resolution dayside grid with 18,558,976 cells
									
								

								
								

									GM_boris_clight_factor
									
The Boris factor reduces the speed of light in a MHD equations, thus reducing the numerical stiffness and allowing explicit time steps to be longer.

									The light speed is the largest wave speed in the numerical system. Wave phenomena might be lost with a light speed that is too low.
									
									0.01
									0.005
									1.0
									
								

								
								

									GM_resistivity_model
									
Type of magnetosphere resistivity model applied. This can be anomalous resistivity driven by electric currents, constant resistivity or hyper-diffusion (artificial resistivity triggered by grid-scale gradients).

									A non-zero resistivity is applied only outside of 2 near-Earth boundary radii. 
									
									none
									
									
									
								

								
								

									GM_resistivity_value
									
Value of constant resistivity in magnetosphere.

									
									m^2/s
									0
									0
									1.0E13
									
								

								
								

									GM_anomalous_resistivity_value
									
Resisitivty factor in anomalous 9current-driven)resistivity model.
resistivity = GM_resistivity_value + GM_anomalous_resistivity_value*(J-GM_resistivity_current_threshold)^2

									
									m^2/s
									0
									0
									1e15
									
								

								
								

									GM_resistivity_current_threshold
									
Current value above which anomalous resistivity begins.

									
									muA/m^2
									0.7
									0
									10
									
								

								
								

									GM_anomalous_resistivity_max_value
									
Maximum value attained by anomalous resistivity model. Resistivity in thin current sheets with large current densities cannot exceed this value.

									
									m^2/s
									0
									0
									1e15
									
								

								
								

									inflow boundary
									
Location of sun-ward facing (front) boundary of the magnetosphere simulation box.

									
									R_E
									32
									24
									128
									
								

								
								

									GM_model
									
Global magnetosphere model name

									
									
									BATSRUS
									
									
									
								

								
								

									GM_version
									
Global magnetosphere model version

									
									
									9.30
									
									
									
								

								
								

									b_angle
									
IMF clock angle

									
									
									
									
									
									
								

								
								

									GM_dn_init
									
Number of iteration steps during initialization of the magnetosphere model

									
									
									2500
									
									
									
								

								
								

									GM_solver
									
Numerical solver for magnetosphere MHD

									
									
									Rusanov
									
									
									
								

								
								

									GM_limiter_name
									
Limiter name for magnetosphere MHD

									
									
									mc3
									
									
									
								

								
								

									GM_limiter_beta
									
Limiter beta

									
									
									1
									
									
									
								

								
								

									GM_implicit
									
Time advance mode in magnetosphere

									
									
									explicit
									
									
									
								

								
								

									GM_timestep
									
Magnetosphere time step (for part-implicit advance only)

									
									
									
									
									
									
								

								
								

									dipole_update
									
Flag indicating whether dipole updates throughout the run (True) or dipole set to start time of run (False)

									
									
									False
									
									
									
								

								
								

									dipole_time
									
Dipole time

									
									
									1967/02/24 12:25
									
									
									
								

								
								

									dipole_tilt
									
Dipole tilt

									
									deg
									-5.10275
									
									
									
								

								
								

									dipole_tilt_y
									
Y component of dipole tilt

									
									deg
									10.9204
									
									
									
								

								
								

									corotation
									
Flag indicating whether to enable corotation around fixed dipole orientation

									
									
									no
									
									
									
								

								
								

									dipole_strength
									
Dipole strength - fraction of Earth's current magnetic field

									
									
									1
									0.05
									1
									
								

								
								
							

						
						
						
					

				
					

						Model outputs
						
Parameters that define the type of outputs generated and the frequency of outputs.

						
						
						
												 
						
							

								
									

										Name
										Description
										Caveats
										Units
										Default Value or Actual Value
										Valid Min
										Valid Max
									

								
								
								
								

									output_time_interval
									
Time interval between outputs in the magnetosphere and ionosphere electrodynamics.

									Other components within a global magnetosphere modeling framework such as ring current or thermosphere model may have their own time scales. Output cadences may differ.
									s
									240
									60
									1800
									
								

								
								

									satellite_output_time_interval
									
Time interval between outputs during satellite tracking in the magnetosphere (or inner mangetosphere) model.

									
									s
									5
									1
									60
									
								

								
								

									SSCWeb_satellite_names
									
Comma-separated list of satellite names (single-word strings used in SSCweb).

									Satellite trajectories are obtained from SSCweb's Locator Tabular interface and are typically limited to missions in geospace.
									
									
									
									all satellites in SSCweb that are aloft at any time during a model run's time interval
									
								

								
								

									MAGNETOMETERGRID
									
Flag indicating the use of the SWMF model's calculation of ground magnetic perturbations on a grid of positions.

									Magnetic perturbations on the ground are calculated using Biot-Savart summation over electric currents on the magnetosphere and ionosphere electrodynamics grids. magnetic-field=aligned currents between ionosphere electrodynamics and magnetosphere are assumed to flow on dipole magnetic field lines. The calculation assumes stationary conditions (infinite speed of light) and does not take into account induction effects due to the Earth's electric ground conductivity.
									
									false
									false
									true
									
								

								
								

									coord_MAGNETOMETERGRID
									
Coordinate system used in the grid of positions on the ground.
This is either GEO (geographic) or MAG (geomagnetic).

									
									
									GEO
									GEO
									MAG
									
								

								
								

									latmin_MAGNETOMETERGRID
									
Minimum latitude of the position grid used to calculate ground magnetic perturbations.

									
									degrees
									-90
									-90
									90
									
								

								
								

									latmax_MAGNETOMETERGRID
									
Maximum latitude of the position grid used to calculate ground magnetic perturbations.

									
									degrees
									90
									-90
									90
									
								

								
								

									lonmin_MAGNETOMETERGRID
									
Minimum longitude of grid used to calculate ground magnetic perturbations.

									
									degrees
									0
									0
									360
									
								

								
								

									lonmax_MAGNETOMETERGRID
									
Maximum longitude of grid used to calculate ground magnetic perturbations.

									
									degrees
									360
									0
									360
									
								

								
								

									dlat_MAGNETOMETERGRID
									
Latitude spacing in grid used to calculate ground magnetic perturbations.

									
									degrees
									5
									1
									180
									
								

								
								

									dlon_MAGNETOMETERGRID
									
Longitude spacing in grid used to calculate ground magnetic perturbations.

									
									degrees
									5
									1
									360
									
								

								
								

									dtsave_MAGNETOMETERGRID
									
Time interval between calculation and output of ground magnetic perturbations.

									
									s
									60
									5
									300
									
								

								
								

									satellite_names
									
Comma-separated list of satellite names

									Satellite trajectories are obtained from SSCweb's Locator Tabular interface and are typically limited to missions in geospace.
									
									
									
									all satellites in SSCweb that are aloft at any time during a model run's time interval
									
								

								
								

									Provide_Output_Along_Satellite_Trajectory
									
Flag indicating whether to generate output files along the trajectory of the tracked satellites

									
									
									False
									
									
									
								

								
								

									dnsave_MAGNETOMETERGRID
									
Number of steps between outputs when calculating magnetic perturbations on grid of locations

									Currently unused
									
									
									
									
									
								

								
								

									Provide_CDF_Output_files
									
Flag indicating whether to provide CDF output files

									This is a post-processing option within the CCMC run-on-request workflow. The option does not affect how the model itself runs.
									
									True
									
									
									
								

								
								

									Provide_HDF_Output_files
									
Flag indicating whether to generate HDF output files

									This is a post-processing option within the CCMC run-on-request workflow. The option does not affect how the model itself runs.
									
									False
									
									
									
								

								
								

									Provide_MAGNETOMETER_Output_Files
									
Flag indicating whether to generate magnetometer output files

									
									
									False
									
									
									
								

								
								

									Calculate_Oval_Position_or_Not
									
Flag indicating whether to run field line tracer to calculate polar cap (region with open field lines).

									This is a post-processing option within the CCMC run-on-request workflow.
The option does not affect how the model itself runs.
									
									True
									
									
									
								

								
								
							

						
						
						
					

				
					

						Exoplanetary run parameters
						
Parameters pertaining to an exoplanetary run

						
						
						
												 
						
							

								
									

										Name
										Description
										Caveats
										Units
										Default Value or Actual Value
										Valid Min
										Valid Max
									

								
								
								
								

									EXO
									
Flag indicating whether this is an exoplanetary run

									
									
									0
									
									
									
								

								
								
							

						
						
						
					

				
					

						Inner magnetosphere model parameters
						

						
						
						
												 
						
							

								
									

										Name
										Description
										Caveats
										Units
										Default Value or Actual Value
										Valid Min
										Valid Max
									

								
								
								
								

									IM_model
									
Inner magnetosphere model name

									
									
									RCM
									
									
									
								

								
								

									IM_version
									
Inner magnetosphere model version

									
									
									2.0
									
									
									
								

								
								

									inner_boundary_radius
									
Inner boundary radius

									
									Re
									2.5
									
									
									
								

								
								

									inner_boundary_current_radius
									
Inner boundary current radius

									
									Re
									3.0
									
									
									
								

								
								

									CPCP-driven_inner_boundary_density
									
CPCP-driven inner boundary density

									
									
									1
									
									
									
								

								
								

									factor_for_CPCP-driven_inner_boundary_density
									
Factor for CPCP-driven inner boundary density.
Inner Boundary Density=CPCP-driven_inner_boundary_density + CPCP*factor_for_CPCP-driven_inner_boundary_density
with CPCP the Cross-PolarCap Potential (in kV) - the maximum electric potential minus the minimum potential in the ionosphere electrodynamics (IE) solver.

									The maximum value is unknown. A value of 0.1 was recommended by the modelers. Larger values may work but may overly dampen storm time acitivity.
									
									0.1
									0
									0.2
									
								

								
								

									density_at_inner_boundary
									
Density at the inner boundary (1.25 Re)

									
									
									28
									5
									500
									
								

								
								

									temperature_at_inner_boundary
									
Temperature at the inner boundary (1.25 Re)

									
									
									25000
									1500
									5000
									
								

								
								
							

						
						
						
					

				
					

						Radiation belt model
						

						
						
						
												 
						
							

								
									

										Name
										Description
										Caveats
										Units
										Default Value or Actual Value
										Valid Min
										Valid Max
									

								
								
								
								

									RB_model
									
Radiation belt model name

									
									
									
									
									
									
								

								
								

									RB_version
									
Radiation belt model version

									
									
									
									
									
									
								

								
								
							

						
						
						
					

				
					

						General parameters
						

						
						
						
												 
						
							

								
									

										Name
										Description
										Caveats
										Units
										Default Value or Actual Value
										Valid Min
										Valid Max
									

								
								
								
								

									run_type
									
Type of the run - either driven by real data or by artificial conditions

									
									
									Driven by artificial conditions
									
									
									
								

								
								
							

						
						
						
					

				
					

						Ring current model
						

						
						
						
												 
						
							

								
									

										Name
										Description
										Caveats
										Units
										Default Value or Actual Value
										Valid Min
										Valid Max
									

								
								
								
								

									Run_Ring_Current_Model_or_Not
									
Flag indicating whether to run Ring Current Model

									This is a post-processing option within the CCMC run-on-request workflow. The option does not affect how the model itself runs.
									
									False
									
									
									
								

								
								
							

						
						
						
					

				
			
		

	

	

		Run Access Information
		
		:
	

	
	
	

		Keyword(s)
		
		:
	

	
		
			dipole tilt

		
	
	
	

		Linked to Parent Spase Resource(s) (example: SimulationModel)
		
		:
	

	
	
		
							
				
					spase://CCMC/SimulationModel/SWMF/20180525

				
				
				
						
		
	
	
	
	

		List of Publications Referencing this Run  
		
		:
	

	
	


        		
    

    

        
            




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