oggm.core.massbalance.ConstantMassBalance

class oggm.core.massbalance.ConstantMassBalance(gdir, mu_star=None, bias=None, y0=None, halfsize=15, filename='climate_monthly', input_filesuffix='')[source]

Constant mass-balance during a chosen period.

This is useful for equilibrium experiments.

__init__(gdir, mu_star=None, bias=None, y0=None, halfsize=15, filename='climate_monthly', input_filesuffix='')[source]

Initialize

Parameters:
gdir : GlacierDirectory

the glacier directory

mu_star : float, optional

set to the alternative value of mu* you want to use (the default is to use the calibrated value)

bias : float, optional

set to the alternative value of the annual bias [mm we yr-1] you want to use (the default is to use the calibrated value)

y0 : int, optional, default: tstar

the year at the center of the period of interest. The default is to use tstar as center.

halfsize : int, optional

the half-size of the time window (window size = 2 * halfsize + 1)

filename : str, optional

set to a different BASENAME if you want to use alternative climate data.

input_filesuffix : str

the file suffix of the input climate file

Methods

__init__(gdir[, mu_star, bias, y0, …]) Initialize
get_annual_mb(heights[, year, fl_id]) Like self.get_monthly_mb(), but for annual MB.
get_climate(heights[, year]) Average climate information at given heights.
get_ela([year]) Compute the equilibrium line altitude for this year
get_monthly_mb(heights[, year, fl_id]) Monthly mass-balance at given altitude(s) for a moment in time.
get_specific_mb([heights, widths, fls, year]) Specific mb for this year and a specific glacier geometry.

Attributes

bias Residual bias to apply to the original series.
interp_m
interp_yr
prcp_bias Precipitation factor to apply to the original series.
temp_bias Temperature bias to add to the original series.