bolides.fov_utils.get_boundary#

bolides.fov_utils.get_boundary(boundary, collection=True, intersection=False, crs=None)[source]#

Get specified boundary polygons.

GOES GLM FOV obtained from a netCDF4 file kindly provided by Katrina Virts (NASA/MSFC; katrina.virts@uah.edu) based on information from Doug Mach and Clem Tillier. Fengyun-4A FOV obtained by eye from several papers. Global Meteor Network FOV obtained from KML files at https://globalmeteornetwork.org/data/.

Possible values in boundary:

  • 'goes': Combined FOV of the GLM aboard GOES-16 and GOES-17

  • 'goes-w': GOES-West position GLM FOV, currently corresponding to GOES-17. Note that this combines the inverted and non-inverted FOVs.

  • 'goes-e': GOES-East position GLM FOV, currently corresopnding to GOES-16.

  • 'goes-w-ni': GOES-West position GLM FOV, when GOES-17 is not inverted (summer).

  • 'goes-w-i': GOES-West position GLM FOV, when GOES-17 is inverted (winter).

  • 'goes-17-89.5': GOES-17 GLM FOV when it was in its checkout orbit.

  • 'fy4a': Combined FOV of the Fengyun-4A LMI, in both North and South configurations.

  • 'fy4a-n': Fengyun-4A LMI FOV when in the North configuration (summer).

  • 'fy4a-s': Fengyun-4A LMI FOV when in the South configuration (winter).

  • 'gmn-25km': Combined FOV of all Global Meteor Network stations at 25km detection altitude.

  • 'gmn-70km': Combined FOV of all Global Meteor Network stations at 70km detection altitude.

  • 'gmn-100km': Combined FOV of all Global Meteor Network stations at 100km detection altitude.

Parameters
boundary: str or iterable with multiple strings

Specifies the boundaries desired. Currently supports:

collection: bool

If boundary contains multiple boundaries, True will return a list of boundaries, while False will return their combination (according to the intersection argument)

intersection: bool

If boundary contains multiple strings and collection is False, when True will return the intersection of the fields-of-view, when False will return their union.

Returns
Polygon or list of Polygon in the Azimuthal Equidistant
Coordinate Reference System with a central latitude of 90, central longitude of 0.