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387 lines
9.3 KiB
Text
387 lines
9.3 KiB
Text
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===================
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NEXRAD Level3 Radar
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===================
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`Notebook <http://nbviewer.ipython.org/github/Unidata/python-awips/blob/master/examples/notebooks/NEXRAD_Level3_Radar.ipynb>`_
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.. code:: ipython3
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This example plots NEXRAD 3 algorithm, precipitation, and derived products (not base data).
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.. code:: ipython3
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import warnings
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from awips.dataaccess import DataAccessLayer
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import matplotlib.pyplot as plt
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import cartopy.crs as ccrs
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import numpy as np
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from cartopy.mpl.gridliner import LONGITUDE_FORMATTER, LATITUDE_FORMATTER
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%matplotlib inline
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DataAccessLayer.changeEDEXHost("edex-cloud.unidata.ucar.edu")
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request = DataAccessLayer.newDataRequest("radar")
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available_locs = DataAccessLayer.getAvailableLocationNames(request)
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available_locs.sort()
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list(available_locs)
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request.setLocationNames("kmhx")
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availableParms = DataAccessLayer.getAvailableParameters(request)
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availableParms.sort()
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#list(availableParms)
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productIDs = DataAccessLayer.getRadarProductIDs(availableParms)
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productNames = DataAccessLayer.getRadarProductNames(availableParms)
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print(productIDs)
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print(productNames)
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.. parsed-literal::
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['134', '135', '138', '141', '159', '161', '163', '165', '166', '169', '170', '171', '172', '173', '174', '175', '176', '177', '19', '20', '27', '32', '37', '41', '56', '57', '58', '78', '80', '81', '94', '99']
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['Composite Refl', 'Correlation Coeff', 'Diff Reflectivity', 'Digital Hybrid Scan Refl', 'Digital Inst Precip Rate', 'Digital Precip Array', 'Digital Vert Integ Liq', 'Echo Tops', 'Enhanced Echo Tops', 'Hybrid Hydrometeor Class', 'Hydrometeor Class', 'Melting Layer', 'Mesocyclone', 'One Hour Accum', 'One Hour Diff', 'One Hour Precip', 'One Hour Unbiased Accum', 'Reflectivity', 'Specific Diff Phase', 'Storm Rel Velocity', 'Storm Total Accum', 'Storm Total Diff', 'Storm Total Precip', 'Storm Track', 'User Select Accum', 'Velocity', 'Vert Integ Liq']
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.. code:: ipython3
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warnings.filterwarnings("ignore",category =RuntimeWarning)
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def make_map(bbox, projection=ccrs.PlateCarree()):
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fig, ax = plt.subplots(figsize=(16, 16),
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subplot_kw=dict(projection=projection))
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ax.set_extent(bbox)
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ax.coastlines(resolution='50m')
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gl = ax.gridlines(draw_labels=True)
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gl.top_labels = gl.right_labels = False
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gl.xformatter = LONGITUDE_FORMATTER
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gl.yformatter = LATITUDE_FORMATTER
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return fig, ax
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nexrad_data = {}
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for prod in productNames:
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request.setParameters(prod)
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availableLevels = DataAccessLayer.getAvailableLevels(request)
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if availableLevels:
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request.setLevels(availableLevels[0])
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else:
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print("No levels found for " + prod)
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continue
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cycles = DataAccessLayer.getAvailableTimes(request, True)
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times = DataAccessLayer.getAvailableTimes(request)
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if times:
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print()
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response = DataAccessLayer.getGridData(request, [times[-1]])
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print("Recs : ", len(response))
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if response:
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grid = response[0]
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else:
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continue
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data = grid.getRawData()
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lons, lats = grid.getLatLonCoords()
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nexrad_data[prod] = data
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print('Time :', str(grid.getDataTime()))
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flat = np.ndarray.flatten(data)
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print('Name :', str(grid.getLocationName()))
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print('Prod :', str(grid.getParameter()))
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print('Range:' , np.nanmin(flat), " to ", np.nanmax(flat), " (Unit :", grid.getUnit(), ")")
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print('Size :', str(data.shape))
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print()
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cmap = plt.get_cmap('rainbow')
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bbox = [lons.min()-0.5, lons.max()+0.5, lats.min()-0.5, lats.max()+0.5]
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fig, ax = make_map(bbox=bbox)
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cs = ax.pcolormesh(lons, lats, data, cmap=cmap)
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cbar = fig.colorbar(cs, extend='both', shrink=0.5, orientation='horizontal')
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cbar.set_label(grid.getParameter() +" " + grid.getLevel() + " " \
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+ grid.getLocationName() + " (" + prod + "), (" + grid.getUnit() + ") " \
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+ "valid " + str(grid.getDataTime().getRefTime()))
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plt.show()
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:37:23
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Name : kmhx_0.0_464_464
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Prod : Composite Refl
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Range: 5.0 to 50.0 (Unit : dBZ )
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Size : (464, 464)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_1.png
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.. parsed-literal::
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No levels found for Correlation Coeff
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No levels found for Diff Reflectivity
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_230_360_0.0_359.0
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Prod : Digital Hybrid Scan Refl
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Range: -27.5 to 51.5 (Unit : dBZ )
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Size : (230, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_3.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_920_360_0.0_359.0
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Prod : Digital Inst Precip Rate
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Range: 7.0555557e-09 to 2.3071667e-05 (Unit : m*sec^-1 )
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Size : (920, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_5.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_13_13
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Prod : Digital Precip Array
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Range: 190.0 to 690.0 (Unit : count )
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Size : (13, 13)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_7.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:37:23
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Name : kmhx_0.0_460_360_0.0_359.0
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Prod : Digital Vert Integ Liq
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Range: 0.0 to 18.834518 (Unit : kg*m^-2 )
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Size : (460, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_9.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:37:23
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Name : kmhx_0.0_116_116
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Prod : Echo Tops
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Range: 0.0 to 12192.0 (Unit : m )
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Size : (116, 116)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_11.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:37:23
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Name : kmhx_0.0_346_360_0.0_359.0
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Prod : Enhanced Echo Tops
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Range: nan to nan (Unit : m )
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Size : (346, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_13.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_920_360_0.0_359.0
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Prod : Hybrid Hydrometeor Class
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Range: 1.0 to 14.0 (Unit : count )
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Size : (920, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_15.png
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.. parsed-literal::
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No levels found for Hydrometeor Class
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No levels found for Melting Layer
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Recs : 0
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_115_360_359.0_359.0
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Prod : One Hour Accum
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Range: 0.0 to 0.0127 (Unit : m )
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Size : (115, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_17.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_920_360_0.0_359.0
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Prod : One Hour Diff
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Range: -0.008382 to 0.0027720002 (Unit : m )
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Size : (920, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_19.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_115_360_359.0_359.0
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Prod : One Hour Precip
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Range: 0.0 to 0.0127 (Unit : m )
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Size : (115, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_21.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_920_360_0.0_359.0
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Prod : One Hour Unbiased Accum
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Range: 2.5775646e-05 to 0.017472787 (Unit : m )
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Size : (920, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_23.png
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.. parsed-literal::
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No levels found for Reflectivity
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No levels found for Specific Diff Phase
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No levels found for Storm Rel Velocity
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Recs : 2
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_920_360_0.0_359.0
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Prod : Storm Total Accum
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Range: 0.000508 to 0.082804 (Unit : m )
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Size : (920, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_25.png
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.. parsed-literal::
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_920_360_0.0_359.0
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Prod : Storm Total Diff
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Range: -0.08255 to 0.019499999 (Unit : m )
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Size : (920, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_27.png
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.. parsed-literal::
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Recs : 2
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_116_360_0.0_359.0
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Prod : Storm Total Precip
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Range: 0.0 to 0.088392 (Unit : m )
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Size : (116, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_29.png
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.. parsed-literal::
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Recs : 0
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Recs : 1
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Time : 2018-10-17 16:11:08
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Name : kmhx_0.0_920_360_0.0_359.0
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Prod : User Select Accum
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Range: 2.5399999e-05 to 0.033959802 (Unit : m )
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Size : (920, 360)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_31.png
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.. parsed-literal::
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No levels found for Velocity
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Recs : 1
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Time : 2018-10-17 16:42:31
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Name : kmhx_0.0_116_116
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Prod : Vert Integ Liq
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Range: 1.0 to 20.0 (Unit : kg*m^-2 )
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Size : (116, 116)
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.. image:: NEXRAD_Level3_Radar_files/NEXRAD_Level3_Radar_2_33.png
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