topographic_potential
Calculates the potential at a given latitude and height using coefficients from a topographic model
Calling Sequence
from geoid_toolkit.topographic_potential import topographic_potential
T = topographic_potential(lat, lon, refell, clm, slm, lmax, R, density)
- geoid_toolkit.topographic_potential(lat, lon, refell, clm, slm, lmax, R, density, GAUSS=0)[source]
Calculates the potential coefficients from a topographic model following Barthelmes [1]
- Parameters:
- lat: float
latitude in degrees
- lon: float
longitude in degrees
- refell: str
Reference ellipsoid name
'CLK66': Clarke 1866'GRS67': Geodetic Reference System 1967'GRS80': Geodetic Reference System 1980'HGH80': Hughes 1980 Ellipsoid'WGS72': World Geodetic System 1972'WGS84': World Geodetic System 1984'ATS77': Quasi-earth centred ellipsoid for ATS77'NAD27': North American Datum 1927'NAD83': North American Datum 1983'INTER': International'KRASS': Krassovsky (USSR)'MAIRY': Modified Airy (Ireland 1965/1975)'TOPEX': TOPEX/POSEIDON ellipsoid'EGM96': EGM 1996 gravity model
- clm: float
cosine spherical harmonics for a topographic model
- slm: float
sine spherical harmonics for a topographic model
- lmax: int
maximum spherical harmonic degree
- R: float
average radius used in gravity model
- density: float
density of the topography in the model
- GAUSS: float, default 0
Gaussian Smoothing Radius in km
- Returns:
- T: float
potential from topography model