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@@ 437-450 (lines=14) @@
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| 434 |
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def test_cape_cin_no_el(): |
| 435 |
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"""Tests that CAPE works with no EL.""" |
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p = np.array([959., 779.2, 751.3, 724.3]) * units.mbar |
| 437 |
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temperature = np.array([22.2, 14.6, 12., 9.4]) * units.celsius |
| 438 |
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dewpoint = np.array([19., -11.2, -10.8, -10.4]) * units.celsius |
| 439 |
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parcel_prof = parcel_profile(p, temperature[0], dewpoint[0]).to('degC') |
| 440 |
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cape, cin = cape_cin(p, temperature, dewpoint, parcel_prof) |
| 441 |
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assert_almost_equal(cape, 0.08750805 * units('joule / kilogram'), 6) |
| 442 |
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assert_almost_equal(cin, -89.8073512 * units('joule / kilogram'), 6) |
| 443 |
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| 444 |
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| 445 |
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def test_cape_cin_no_lfc(): |
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"""Tests that CAPE is zero with no LFC.""" |
| 447 |
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p = np.array([959., 779.2, 751.3, 724.3, 700., 269.]) * units.mbar |
| 448 |
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temperature = np.array([22.2, 24.6, 22., 20.4, 18., -10.]) * units.celsius |
| 449 |
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dewpoint = np.array([19., -11.2, -10.8, -10.4, -10., -53.2]) * units.celsius |
| 450 |
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parcel_prof = parcel_profile(p, temperature[0], dewpoint[0]).to('degC') |
| 451 |
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cape, cin = cape_cin(p, temperature, dewpoint, parcel_prof) |
| 452 |
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assert_almost_equal(cape, 0.0 * units('joule / kilogram'), 6) |
| 453 |
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assert_almost_equal(cin, 0.0 * units('joule / kilogram'), 6) |
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@@ 561-573 (lines=13) @@
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| 558 |
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rh[1, :] = 40. |
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rh[2, :] = 80. |
| 560 |
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rh[3, :] = 100. |
| 561 |
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relh = rh * units.percent |
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isentlev = 296. * units.kelvin |
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isentprs = isentropic_interpolation(isentlev, lev, tmpk, relh) |
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truerh = 100. * units.percent |
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assert_almost_equal(isentprs[1], truerh, 3) |
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| 567 |
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| 568 |
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def test_isentropic_pressure_interp(): |
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"""Test calculation of isentropic pressure function.""" |
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lev = [100000., 95000., 90000., 85000.] * units.Pa |
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tmp = np.ones((4, 5, 5)) |
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tmp[0, :] = 296. |
| 573 |
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tmp[1, :] = 292. |
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tmp[2, :] = 290 |
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tmp[3, :] = 288. |
| 576 |
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tmpk = tmp * units.kelvin |
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@@ 525-537 (lines=13) @@
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rh[2, :] = 40. |
| 523 |
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rh[3, :] = 20. |
| 524 |
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relh = rh * units.percent |
| 525 |
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tmpk = tmp * units.kelvin |
| 526 |
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isentlev = [296.] * units.kelvin |
| 527 |
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isentprs = isentropic_interpolation(isentlev, lev, tmpk, relh) |
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truerh = 100. * units.percent |
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assert_almost_equal(isentprs[1], truerh, 3) |
| 530 |
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def test_isentropic_pressure_tmp_out(): |
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"""Test calculation of isentropic pressure function, temperature output.""" |
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lev = [100000., 95000., 90000., 85000.] * units.Pa |
| 535 |
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tmp = np.ones((4, 5, 5)) |
| 536 |
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tmp[0, :] = 296. |
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tmp[1, :] = 292. |
| 538 |
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tmp[2, :] = 290. |
| 539 |
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tmp[3, :] = 288. |
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tmpk = tmp * units.kelvin |
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@@ 489-501 (lines=13) @@
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tmp[2, :] = 290 |
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tmp[3, :] = 288. |
| 488 |
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tmpk = tmp * units.kelvin |
| 489 |
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isentlev = [296.] * units.kelvin |
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isentprs = isentropic_interpolation(isentlev, lev, tmpk) |
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trueprs = 1000. * units.hPa |
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assert_almost_equal(isentprs[0].shape, (1, 5, 5), 3) |
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assert_almost_equal(isentprs[0], trueprs, 3) |
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def test_isentropic_pressure_p_increase(): |
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"""Test calculation of isentropic pressure function, p increasing order.""" |
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lev = [85000, 90000., 95000., 100000.] * units.Pa |
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tmp = np.ones((4, 5, 5)) |
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tmp[0, :] = 288. |
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tmp[1, :] = 290. |
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tmp[2, :] = 292. |
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tmp[3, :] = 296. |
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tmpk = tmp * units.kelvin |
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@@ 453-465 (lines=13) @@
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| 450 |
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parcel_prof = parcel_profile(p, temperature[0], dewpoint[0]).to('degC') |
| 451 |
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cape, cin = cape_cin(p, temperature, dewpoint, parcel_prof) |
| 452 |
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assert_almost_equal(cape, 0.0 * units('joule / kilogram'), 6) |
| 453 |
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assert_almost_equal(cin, 0.0 * units('joule / kilogram'), 6) |
| 454 |
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def test_find_append_zero_crossings(): |
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"""Tests finding and appending zero crossings of an x, y series.""" |
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x = np.arange(11) * units.hPa |
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y = np.array([3, 2, 1, -1, 2, 2, 0, 1, 0, -1, 2]) * units.degC |
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x2, y2 = _find_append_zero_crossings(x, y) |
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x_truth = np.array([0., 1., 2., 2.5, 3., 3.33333333, 4., 5., |
| 463 |
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6., 7., 8., 9., 9.33333333, 10.]) * units.hPa |
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y_truth = np.array([3, 2, 1, 0, -1, 0, 2, 2, 0, 1, 0, -1, 0, 2]) * units.degC |
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assert_array_almost_equal(x2, x_truth, 6) |
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assert_almost_equal(y2, y_truth, 6) |
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Unidata /
MetPy
