harmonica.synthetic.ground_survey
harmonica.synthetic.ground_survey¶
- harmonica.synthetic.ground_survey(region=None, data_region=(13.6, 20.3, - 24.2, - 17.5))[source]¶
Create measurement locations for a synthetic ground survey
The observation points are sampled from the South Africa gravity dataset (see
fetch_south_africa_gravity). Only a portion of the original survey is sampled and its region may be scaled to the passedregion.- Parameters
region (tuple or list (optional)) – Region at which the survey points coordinates will be scaled. The boundaries must be passed in the following order: (
east,west,south,north, …), defined on a geodetic coordinate system and in degrees. All subsequent boundaries will be ignored. IfNone, the survey points won’t be scaled. DefaultNone.data_region (tuple or list (optional)) – Region where the original Great Britain magnetic dataset will be sampled. The boundaries must be passed in the following order: (
east,west,south,north, …), defined on a geodetic coordinate system and in degrees. All subsequent boundaries will be ignored.
- Returns
survey (
pandas.DataFrame) – Dataframe containing the coordinates of the observation points on a geodetic coordinate system. Thepandas.DataFramewill have the following columns:longitude,latitude,height. Longitudes and latitudes are in degrees, and heights in meters.