message_ix_models.tools.bilateralize.calculate_distance.haversine_distance

message_ix_models.tools.bilateralize.calculate_distance.haversine_distance(lat1: float, lon1: float, lat2: float, lon2: float) → float

Calculate the great circle distance between two points on the earth (specified in decimal degrees) using the Haversine formula.

Parameters:

• lat1 – Latitude of the first point

• lon1 – Longitude of the first point

• lat2 – Latitude of the second point

• lon2 – Longitude of the second point

Outputs:

Distance in kilometers