Data Model Parameters¶

Defines the parameters for sedimentation rates and fundamental frequency ranges or values.

data_model_parameters:
  sedimentation_rate_min: 0.4
  sedimentation_rate_max: 5

  frequency_values:
          use_precession: True
          use_eccentricity: True
          use_tilt: True

          p0_values: [50, 55]
          gi_values: [[5.45, 5.75], [7.43, 7.48], [17.1, 17.4], [17.7, 18.0]]
          si_values: [[-19.0, -18.8], [-17.85, -17.7]]

          g5_value: default
          s6_value: default

Parameters¶

Sedimentation Rate Range¶

Note

To set a range of sedimentation rate to be searched in the AstroGeoFit, please edit sedimentation_rate_min, sedimentation_rate_max.

sedimentation_rate_min: float
Minimum sedimentation rate, in cm/kyr.
sedimentation_rate_max: float
Maximum sedimentation rate, in cm/kyr.

Frequency Model¶

frequency_values: dict
Dictionary of frequency-related parameters.
Note
- To choose what Milankovitch cycles to be included in the frequency model, please edit use_precession, use_eccentricity, use_tilt.
- use_precession: bool
  Whether to include precession in the model (True or False).
- use_eccentricity: bool
  Whether to include eccentricity in the model (True or False).
- use_tilt: bool
  Whether to include tilt in the model (True or False).
  Note
  - The Earth’s axial precession frequency (p0) and fundamental frequencies (gi and si) could be set fixed or not in the frequency model. If fixed, input a specific value. If not fixed, input a range like [lower_bound, upper_bound] per each frequency value. If set as “default”, the frequencies would be fixed using the values shown.
  - All the frequencies are in unit of “arcsec/yr”.
- p0_values: float, list[float], or “default”
  Single float value or list of two floats defining a range. If the p0 value is given as range, the tool will optimize that frequency. If “default”, value is set to 50.467718.
- gi_values: list[float], list[list[float]], or “default”
  Frequencies representing g1, g2, g3, and g4. Accepts:
  - A list of four float values
  - A list of four lists (each with two floats) representing ranges. If the gi values are given as range, the tool will optimize these frequencies.
  - “default” (uses: [5.579378, 7.456665, 17.366595, 17.910194])
- si_values: list[float], list[list[float]], or “default”
  Frequencies representing s3 and s5. Accepts:
  - A list of two float values
  - A list of two lists (each with two floats) representing ranges. If the si values are given as range, the tool will optimize these frequencies.
  - “default” (uses: [-18.845166, -17.758310])
- g5_value: float or “default” Constant value for frequency g5. Default: 4.257564.
- s6_value: float or “default” Constant value for frequency s6. Default: -26.347880.