harmonica.synthetic.airborne_survey
harmonica.synthetic.airborne_survey¶
- harmonica.synthetic.airborne_survey(region=None, data_region=(- 5.0, - 4.0, 56.0, 56.5))[source]¶
Create measurement locations for a synthetic airborne survey
The observation points are sampled from the Great Britain total-field magnetic anomaly dataset (see
fetch_britain_magnetic). A portion of the original survey is cut (data_region) and the coordinates may be scaled to the given region.- Parameters
region (tuple or list (optional)) – Survey horizontal coordinates will be scaled to span this area. The boundaries must be passed in the following order: (
east,west,south,north, …), defined on a geodetic coordinate system and in degrees. Only the 4 horizontal boundaries are used. Subsequent boundaries will be ignored. IfNone, the survey points won’t be scaled. DefaultNone.data_region (tuple or list (optional)) – Subsection of the original Great Britain magnetic dataset that 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.