Example #1
0
def test_coxe():

    testdir = os.path.join(get_test_dir(), 'tmp_coxe')
    utils.mkdir(testdir, reset=True)

    # Init
    cfg.initialize()
    cfg.PARAMS['use_intersects'] = False
    cfg.PATHS['dem_file'] = get_demo_file('dem_RGI50-01.10299.tif')
    cfg.PARAMS['border'] = 40
    cfg.PARAMS['clip_tidewater_border'] = False
    cfg.PARAMS['use_multiple_flowlines'] = False
    cfg.PARAMS['use_kcalving_for_inversion'] = True
    cfg.PARAMS['use_kcalving_for_run'] = True
    cfg.PARAMS['trapezoid_lambdas'] = 1

    hef_file = get_demo_file('rgi_RGI50-01.10299.shp')
    entity = gpd.read_file(hef_file).iloc[0]

    gdir = oggm.GlacierDirectory(entity, base_dir=testdir, reset=True)
    gis.define_glacier_region(gdir)
    gis.glacier_masks(gdir)
    centerlines.compute_centerlines(gdir)
    centerlines.initialize_flowlines(gdir)
    centerlines.compute_downstream_line(gdir)
    centerlines.compute_downstream_bedshape(gdir)
    centerlines.catchment_area(gdir)
    centerlines.catchment_intersections(gdir)
    centerlines.catchment_width_geom(gdir)
    centerlines.catchment_width_correction(gdir)
    climate.apparent_mb_from_linear_mb(gdir)
    inversion.prepare_for_inversion(gdir)
    inversion.mass_conservation_inversion(gdir)
    inversion.filter_inversion_output(gdir)

    flowline.init_present_time_glacier(gdir)

    fls = gdir.read_pickle('model_flowlines')

    p = gdir.read_pickle('linear_mb_params')
    mb_mod = massbalance.LinearMassBalance(ela_h=p['ela_h'], grad=p['grad'])
    mb_mod.temp_bias = -0.3
    model = flowline.FluxBasedModel(fls,
                                    mb_model=mb_mod,
                                    y0=0,
                                    inplace=True,
                                    is_tidewater=True)

    # run
    model.run_until(200)
    assert model.calving_m3_since_y0 > 0

    fig, ax = plt.subplots()
    graphics.plot_modeloutput_map(gdir, ax=ax, model=model)
    fig.tight_layout()
    shutil.rmtree(testdir)
    return fig
Example #2
0
def test_chhota_shigri():

    testdir = os.path.join(get_test_dir(), 'tmp_chhota')
    utils.mkdir(testdir, reset=True)

    # Init
    cfg.initialize()
    cfg.PATHS['dem_file'] = get_demo_file('dem_chhota_shigri.tif')
    cfg.PARAMS['border'] = 80
    cfg.PARAMS['use_intersects'] = False
    cfg.PATHS['working_dir'] = testdir

    hef_file = get_demo_file('divides_RGI50-14.15990.shp')
    df = gpd.read_file(hef_file)
    df['Area'] = df.Area * 1e-6  # cause it was in m2
    df['RGIId'] = ['RGI50-14.15990' + d for d in ['_d01', '_d02']]

    gdirs = workflow.init_glacier_regions(df)
    workflow.gis_prepro_tasks(gdirs)
    for gdir in gdirs:
        climate.apparent_mb_from_linear_mb(gdir)
    workflow.execute_entity_task(inversion.prepare_for_inversion, gdirs)
    workflow.execute_entity_task(inversion.volume_inversion,
                                 gdirs,
                                 glen_a=cfg.A,
                                 fs=0)
    workflow.execute_entity_task(inversion.filter_inversion_output, gdirs)
    workflow.execute_entity_task(flowline.init_present_time_glacier, gdirs)

    models = []
    for gdir in gdirs:
        flowline.init_present_time_glacier(gdir)
        fls = gdir.read_pickle('model_flowlines')
        models.append(flowline.FlowlineModel(fls))

    fig, ax = plt.subplots()
    graphics.plot_modeloutput_map(gdirs, ax=ax, model=models)
    fig.tight_layout()
    shutil.rmtree(testdir)
    return fig