PseudoNetCDF.camxfiles.height_pressure package

Submodules

PseudoNetCDF.camxfiles.height_pressure.Memmap module

Memmap – height/pressure Memmap interface

class PseudoNetCDF.camxfiles.height_pressure.Memmap.height_pressure(*args, **kwds)

Bases: PseudoNetCDFFile

height_pressure provides a PseudoNetCDF interface for CAMx height_pressure files. Where possible, the inteface follows IOAPI conventions (see www.baronams.com).

ex:

>>> height_pressure_path = 'camx_height_pressure.bin'
>>> rows,cols = 65,83
>>> hpf = height_pressure(height_pressure_path,rows,cols)
>>> hpf.variables.keys()
['TFLAG', 'HGHT', 'PRES']
>>> v = hpf.variables['V']
>>> tflag = hpf.variables['TFLAG']
>>> tflag.dimensions
('TSTEP', 'VAR', 'DATE-TIME')
>>> tflag[0,0,:]
array([2005185,       0])
>>> tflag[-1,0,:]
array([2005185,  240000])
>>> v.dimensions
('TSTEP', 'LAY', 'ROW', 'COL')
>>> v.shape
(25, 28, 65, 83)
>>> hpf.dimensions
{'TSTEP': 25, 'LAY': 28, 'ROW': 65, 'COL': 83}

data_fmt = 'f'

id_fmt = 'fi'

PseudoNetCDF.camxfiles.height_pressure.Read module

Read – height_pressure Read interface

class PseudoNetCDF.camxfiles.height_pressure.Read.height_pressure(*args, **kwds)

Bases: PseudoNetCDFFile

height_pressure provides a PseudoNetCDF interface for CAMx height_pressure files. Where possible, the inteface follows IOAPI conventions (see www.baronams.com).

ex:

>>> height_pressure_path = 'camx_height_pressure.bin'
>>> rows,cols = 65,83
>>> hpf = height_pressure(height_pressure_path,rows,cols)
>>> hpf.variables.keys()
['TFLAG', 'HGHT', 'PRES']
>>> v = hpf.variables['V']
>>> tflag = hpf.variables['TFLAG']
>>> tflag.dimensions
('TSTEP', 'VAR', 'DATE-TIME')
>>> tflag[0,0,:]
array([2005185,       0])
>>> tflag[-1,0,:]
array([2005185,  240000])
>>> v.dimensions
('TSTEP', 'LAY', 'ROW', 'COL')
>>> v.shape
(25, 28, 65, 83)
>>> hpf.dimensions
{'TSTEP': 25, 'LAY': 28, 'ROW': 65, 'COL': 83}

Initialization included reading the header and learning about the format.

see __readheader and __gettimestep() for more info

data_fmt = 'f'

getArray(hp)

id_fmt = 'fi'

items()

keys()

read()

Call recordfile read method directly

read_into(dest)

put values from rffile read into dest dest - numpy or numeric array

seek(date=None, time=None, k=1, hp=0, chkvar=True)

Move file cursor to specified record

seekandread(date=None, time=None, k=1, hp=0)

see seek and read

seekandreadinto(dest, date=None, time=None, k=1, hp=0)

see seek and read

timerange()

values()

PseudoNetCDF.camxfiles.height_pressure.Transforms module

Write – CAMx height/pressure variable transformations

class PseudoNetCDF.camxfiles.height_pressure.Transforms.height_pressure_center_time(*args, **kwds)

Bases: time_avg_new_unit

class PseudoNetCDF.camxfiles.height_pressure.Transforms.height_pressure_center_time_plus(*args, **kwds)

Bases: time_avg_new_unit

class PseudoNetCDF.camxfiles.height_pressure.Transforms.height_pressure_plus(*args, **kwds)

Bases: add_derived

PseudoNetCDF.camxfiles.height_pressure.Write module

Write – CAMx height_pressure writer

PseudoNetCDF.camxfiles.height_pressure.Write.ncf2height_pressure(ncffile, outpath, hght='HGHT', pres='PRES', tflag='TFLAG')

PseudoNetCDF.camxfiles.height_pressure.Write.write_hgtprss(sdate, stime, time_step, vals)

Takes an iterable and some defining information and creates a CAMx read wind file

sdate - integer start date stime - float start time time_step - float increment between times

vals - array axes time,uv,xy,z

Module contents

height_pressure – Height/Pressure File Interfaces