Aether/srcPython/postAether.py at refs/heads/develop · AetherModel/Aether · GitHub

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#!/usr/bin/env python3

""" Standard model visualization routines

"""

import datetime as dt

from glob import glob

import re

import matplotlib.pyplot as plt

import numpy as np

import matplotlib.cm as cm

import argparse

import os

import json

from struct import unpack

try:

from netCDF4 import Dataset

from h5py import File

except ImportError:

print("NetCDF and/or h5py not found")

# ----------------------------------------------------------------------

# Function to parse input arguments

# ----------------------------------------------------------------------

def parse_args():

parser = argparse.ArgumentParser(description = 'Post process Aether files')

parser.add_argument('-hdf5', \

help='output HDF5 files', \

action="store_true")

parser.add_argument('-rm', \

help='removes processed files', \

action="store_true")

parser.add_argument('-alt', default = -1, type = int, \

help='altitude to plot (-1 for no plot!)')

parser.add_argument('-v', \

help='turn on verbose mode', \

action="store_true")

parser.add_argument('-oned', \

help='strip 1d files of ghostcells and store in one file', \

action="store_true")

parser.add_argument('-combine', \

help='combine all of the blocks into a single block (spherical only)', \

action="store_true")

parser.add_argument('-dir', default=None, type=str,

help="Directory to find Aether files in. Will look in current"

" directory & $PWD/UA/output/")

args = parser.parse_args()

return args

# ----------------------------------------------------------------------

# Want to eliminate need for aetherpy to be installed for ease of use.

# Therefore a bunch of this stuff is from aetherpy.

# ----------------------------------------------------------------------

# convert time from datetime to double

def datetime_to_epoch(dtime):

"""Convert datetime to epoch seconds.

Parameters

----------

dtime : dt.datetime or dt.date

Datetime object

Returns

-------

epoch_time : float

Seconds since 1 Jan 1965

"""

epoch_time = (dtime - dt.datetime(1965, 1, 1)).total_seconds()

return epoch_time

# ----------------------------------------------------------------------

# convert time format from double to datetime

def epoch_to_datetime(epoch_time):

"""Convert from epoch seconds to datetime.

Parameters

----------

epoch_time : int

Seconds since 1 Jan 1965

Returns

-------

dtime : dt.datetime

Datetime object corresponding to `epoch_time`

Notes

-----

Epoch starts at 1 Jan 1965.

"""

dtime = dt.datetime(1965, 1, 1) + dt.timedelta(seconds=epoch_time)

return dtime

# ----------------------------------------------------------------------

# Define a class for helping handle data

class DataArray(np.ndarray):

def __new__(cls, input_array, attrs={}):

obj = np.asarray(input_array).view(cls)

obj.attrs = attrs

return obj

def __array_finalize__(self, obj):

if obj is None:

return

self.attrs = getattr(obj, 'attrs', {

'units': None,

'long_name': None

})

# ----------------------------------------------------------------------

# read aether header - figure out whether it is json or netcdf

def read_aether_headers(filelist, finds=None, filetype="netcdf"):

"""Obtain ancillary information from Aether files.

Parameters

----------

filelist : array-like

Array-like object of names for Aether files

finds : int, list, slice, or NoneType

Index(es) for file(s) from which the header information will be read.

If None, reads headers from all files, ensuring data across all files

are consistent. (default=None)

filetype : str

Input file type (must be the same for all files). Expects one of

'ascii' or 'netcdf' (default='netcdf')

Returns

-------

header : dict

A dictionary containing header information from the files,

including:

nlons - number of longitude grids

nlats - number of latitude grids

nalts - number of altitude grids

ngcs - number of ghost cells

vars - list of data variable names

time - list of datetimes for the processed file start times

filename - list of the input filenames

Raises

------

ValueError

If there are an unexpected number or name of variables or dimensions

for any file in the file list.

See Also

--------

read_aether_ascii_header and read_aether_netcdf_header

Notes

-----

Reading may be sped up by loading data from a single header, but loading

from all will ensure all files in the list have the same format.

"""

# Initialize the output

header = {"vars": [], "time": [], "filename": np.asarray(filelist)}

# Ensure the filelist is array-like, allowing slicing of input

if header['filename'].shape == ():

header['filename'] = [filelist]

else:

header['filename'] = list(header['filename'])

# Ensure selected files are list-like

if finds is None:

hfiles = np.asarray(header['filename'])

else:

hfiles = np.asarray(header['filename'])[finds]

if hfiles.shape == ():

hfiles = np.asarray([hfiles])

# Read the header info from the desired files

for iFile, filename in enumerate(hfiles):

if filetype.lower() == "netcdf":

fheader = read_aether_netcdf_header(filename)

else:

fheader = read_aether_json_header(filename)

header['filename'][iFile] = filename.replace(".json", ".bin")

for hkey in fheader.keys():

if hkey in header.keys():

if hkey == 'time':

if fheader[hkey] not in header[hkey]:

header[hkey].append(fheader[hkey])

elif hkey == 'vars' and np.any(header[hkey] != fheader[hkey]):

#header[hkey] = list(np.unique(header[hkey] + fheader[hkey]))

header[hkey] = fheader[hkey]

elif hkey != 'filename' and header[hkey] != fheader[hkey]:

raise ValueError(''.join(['header values changed between',

' files: {:} != {:}'.format(

header[hkey],

fheader[hkey])]))

else:

header[hkey] = fheader[hkey]

return header

# ----------------------------------------------------------------------

# read netcdf header

def read_aether_netcdf_header(filename, epoch_name='time'):

"""Read header information from an Aether netCDF file.

Parameters

----------

filename : str

An Aether netCDF filename

epoch_name : str

Epoch variable name used in the data file (default='time')

Returns

-------

header : dict

A dictionary containing header information from the netCDF files,

including:

nlons - number of longitude grids

nlats - number of latitude grids

nalts - number of altitude grids

vars - list of data variable names

time - list of datetimes with data

filename - filename of file containing header data

See Also

--------

read_aether_header

"""

# Test the filename and add it to the header

if not os.path.isfile(filename):

raise IOError('unknown aether netCDF file: {:}'.format(filename))

header = {'filename': filename,

'nlons': 0,

'nlats': 0,

'nalts': 0,

'nblocks': 1}

# Open the file and read the header data

with Dataset(filename, 'r') as ncfile:

ncvars = list()

IsFirst = True

for var in ncfile.variables.values():

if (len(var.shape) >= 3):

iOff_ = 0

if (len(var.shape) == 4):

iOff_ = 1

header["nblocks"] = var.shape[0]

nlons = var.shape[0 + iOff_]

nlats = var.shape[1 + iOff_]

nalts = var.shape[2 + iOff_]

ncvars.append(var.name)

if (IsFirst):

header["nlons"] = nlons

header["nlats"] = nlats

header["nalts"] = nalts

IsFirst = False

# Save the unique variable names

ncvars = np.unique(ncvars)

if "vars" not in header.keys() or len(header['vars']) == 0:

header["vars"] = list(ncvars)

elif np.any(header["vars"] != ncvars):

raise IOError(''.join(['unexpected number or name of variables in',

' file: ', filename]))

# Add the time for this file

epoch = np.double(ncfile.variables[epoch_name][0])

header["time"] = epoch_to_datetime(epoch)

return header

# ----------------------------------------------------------------------

# read json header

def read_aether_json_header(filename):

"""Read information from an Aether ascii header file.

Parameters

----------

filename : str

An ascii header file name or binary filename with associated header

file present in the same directory.

Returns

-------

header : dict

A dictionary containing header information from the netCDF files,

including:

nlons - number of longitude grids

nlats - number of latitude grids

nalts - number of altitude grids

ngcs - number of ghost cells

nvars - number of data variable names

time - datetime for the file

vars - variables in the file

long_name - variables in the file

units - units of variables in the file

version - version number of the file

filename - filename of file containing header data

See Also

--------

read_aether_header

"""

header = {"filename": filename}

# returns JSON object as

# a dictionary

fpin = open(filename)

jsonHeader = json.load(fpin)

fpin.close()

# future proof:

if ('long_name' in jsonHeader.keys()):

needLongName = False

else:

needLongName = True

for key in jsonHeader.keys():

newkey = key.lower()

if (newkey == 'variables'):

newkey = 'vars'

if (newkey == 'time'):

t = jsonHeader['time']

time = dt.datetime(t[0], t[1], t[2],

t[3], t[4], t[5], t[6])

jsonHeader['time'] = time

header[newkey] = jsonHeader[key]

if ((newkey == 'vars') and needLongName):

header['long_name'] = jsonHeader[key]

return header

# ----------------------------------------------------------------------

# read aether file that is in binary format

def read_aether_one_binary_file(header, ifile, vars_to_read, isVerbose = True):

"""Read in list of variables from a single netCDF file.

Parameters

----------

header : dict

Dict of header data returned from read_aether_ascii_header

ifile : int

Integer corresponding to filename in the header dict

vars_to_read : list

List of desired variable names to read

Returns

-------

data : dict

Dict with keys 'time', which contains a datetime object specifying the

time of the file and indices ranging from 0 to `len(vars_to_read) - 1`,

corresponding to the variable names in `vars_to_read` that holds arrays

of the specified data

See Also

--------

read_aether_ascii_header

"""

file_to_read = header["filename"][ifile]

if (isVerbose):

print(" Reading file : ", file_to_read)

data = {hkey: header[hkey] for hkey in ["version",

"nlons", "nlats",

"nalts", "ngcs", "nvars", "vars",

"units", "long_name"]}

data["time"] = header["time"][0]

with open(file_to_read, 'rb') as fin:

# Read in the header data

header_len = 0

num_tot = data["nlons"] * data["nlats"] * data["nalts"]

# Data were saved as floats, not doubles

data_len = num_tot * 4

endChar = '<'

for ivar in vars_to_read:

fin.seek(header_len + ivar * data_len)

data[ivar] = np.array(unpack(endChar + '%if' % num_tot,

fin.read(data_len)))

data[ivar] = data[ivar].reshape(

(data["nlons"], data["nlats"], data["nalts"]), order="F")

return data

# ----------------------------------------------------------------------

# read aether netcdf file

def read_aether_file(filename, file_vars=None, epoch_name='time'):

"""Read in list of variables from a netCDF file.

Parameters

----------

filename : str

Name of netCDF file to read

file_vars : list or NoneType

List of desired variable names to read, or None to read all

(default=None)

epoch_name : str

Epoch variable name (default='time')

Returns

-------

data : dict or xr.Dataset

If `out_type` is 'dict', `data` is a dict with keys 'time', which

contains a datetime object specifying the time of the file, 'vars',

which contains a list of variable names, and zero-offset indices,

corresponding to the variable names in 'vars' key, and 'units',

a list of unit strings for each of the variables.

"""

data = dict()

print(" Reading file : ", filename)

if not os.path.isfile(filename):

raise IOError('input file does not exist')

# Set the default attributes

def_attr = {'units': '', 'long_name': None}

with Dataset(filename, 'r') as ncfile:

# Save a list of all desired variable names

data['vars'] = [var for var in ncfile.variables.keys()

if file_vars is None or var in file_vars]

for attr in def_attr.keys():

data[attr] = list()

# Save the data as numpy arrays, using variable index as a key

for i_var, var in enumerate(data['vars']):

data[i_var] = np.array(ncfile.variables[var])

# Save the attributes

for attr in def_attr.keys():

if hasattr(ncfile.variables[var], attr):

data[attr].append(getattr(ncfile.variables[var], attr))

else:

if def_attr[attr] is None:

data[attr].append(var)

else:

data[attr].append(def_attr[attr])

# Calculate the date and time for this data

time = np.array(ncfile.variables[epoch_name])

data['time'] = epoch_to_datetime(time[0])

return data

#----------------------------------------------------------------------------

# This returns the core of the filename without the _g????.nc

#----------------------------------------------------------------------------

def get_core_file(filename):

coreFile = ''

isEnsemble = False

ensembleFile = ''

ensembleNumber = -1

m = re.match(r'.*([0123]D.*)(_g[0-9]*)(\..*)',filename)

if m:

coreFile = m.group(1)

# check if file is a member of an ensemble:

check = re.match('.*([0123]D.*)(_m)([0-9]*)',coreFile)

if (check):

ensembleFile = check.group(1)

isEnsemble = True

ensembleNumber = int(check.group(3)) + 1

fileInfo = {'coreFile': coreFile,

'isEnsemble': isEnsemble,

'ensembleFile': ensembleFile,

'ensembleNumber': ensembleNumber,

'ensembleMembers': -1}

return fileInfo

#----------------------------------------------------------------------------

# Add to the list of strings if there isn't already an identical string

#----------------------------------------------------------------------------

def if_unique(list, newItem):

IsFound = False

index = -1

for i, item in enumerate(list):

if (item == newItem):

IsFound = True

index = i

return IsFound, index

#----------------------------------------------------------------------------

# This looks at all of the netcdf files, figures out the core name, and

# adds them to the list of files to process

#----------------------------------------------------------------------------

def get_base_files():

isNetCDF = False

filelist = sorted(glob('?????*.bin'))

if (len(filelist) == 0):

filelist = sorted(glob('?????*.nc'))

isNetCDF = True

files = []

filesInfo = []

for file in filelist:

fileInfo = get_core_file(file)

fileInfo["isNetCDF"] = isNetCDF

coreFile = fileInfo['coreFile']

if (len(coreFile) > 0):

IsFound, i = if_unique(files, coreFile)

if (not IsFound):

files.append(coreFile)

filesInfo.append(fileInfo)

# Figure out ensembles:

# (1) get list of unique ensemble filess

# (2) count how many files have this unique ensemble name

ensembleFiles = []

ensembleCounter = []

for fileInfo in filesInfo:

if (len(fileInfo['ensembleFile']) > 0):

IsFound, i = if_unique(ensembleFiles, fileInfo['ensembleFile'])

if (IsFound):

ensembleCounter[-1] += 1

else:

ensembleFiles.append(fileInfo['ensembleFile'])

ensembleCounter.append(1)

# (3) store the number of ensemble members:

for i, fileInfo in enumerate(filesInfo):

if (len(fileInfo['ensembleFile']) > 0):

IsFound, item = if_unique(ensembleFiles, fileInfo['ensembleFile'])

if (IsFound):

filesInfo[i]['ensembleMembers'] = ensembleCounter[item]

if len(filesInfo) == 0:

try:

os.chdir("UA/output")

filesInfo = get_base_files()

except:

print("No input files found!!")

return filesInfo

#----------------------------------------------------------------------------

# Simply return the index of the matching string from a list

#----------------------------------------------------------------------------

def find_var_index(allVars, varToFind):

index = -1

for i,var in enumerate(allVars):

if (var == varToFind):

index = i

break

return index

#----------------------------------------------------------------------------

# Find the minimum and maximum of a variable in a bunch of blocks

#----------------------------------------------------------------------------

def determine_min_max(allBlockData, varToPlot, altToPlot):

mini = 1e32

maxi = -1e32

for data in allBlockData:

iVar = find_var_index(data['vars'], varToPlot)

if (iVar > -1):

v = data[iVar][2:-2, 2:-2, altToPlot]

if (np.min(v) < mini):

mini = np.min(v)

if (np.min(v) > maxi):

maxi = np.max(v)

if (mini < 0):

if (np.abs(mini) > maxi):

maxi = np.abs(mini)

mini = -maxi

return mini, maxi

#----------------------------------------------------------------------------

# Plot a single block of a variable at a given altitude

#----------------------------------------------------------------------------

def plot_block(data, varToPlot, altToPlot, ax, mini, maxi, i):

iLon = find_var_index(data['vars'], 'lon')

iLat = find_var_index(data['vars'], 'lat')

iAlt = find_var_index(data['vars'], 'z')

if (iAlt < 0):

iAlt = find_var_index(data['vars'], 'alt')

iVar = find_var_index(data['vars'], varToPlot)

if (mini < 0):

cmap = cm.bwr

else:

cmap = cm.plasma

alts = data[iAlt][0][0] / 1000.0 # Convert from m to km

# Change to 2d representation:

lons = data[iLon][:, :, 0]

lats = data[iLat][:, :, 0]

v = data[iVar][:, :, altToPlot]

nLons, nLats = np.shape(lons)

xp = np.zeros((nLons+1, nLats+1))

yp = np.zeros((nLons+1, nLats+1))

for iX in np.arange(1, nLons):

for iY in np.arange(1, nLats):

xp[iX, iY] = (lons[iX-1, iY] + lons[iX, iY])/2.0

yp[iX, iY] = (lats[iX, iY-1] + lats[iX, iY])/2.0

xp[iX, 0] = (lons[iX-1, 0] + lons[iX, 0])/2.0

xp[iX, nLats] = xp[iX, nLats-1]

yp[iX, 0] = 2 * lats[iX, 0] - yp[iX, 0]

yp[iX, nLats] = 2 * yp[iX, nLats-1] - lats[iX, nLats-1]

# more xp

for iY in np.arange(1, nLats):

xp[0, iY] = 2 * lons[0, iY] - xp[1, iY]

xp[nLons, iY] = 2 * xp[nLons-1, iY] - lons[nLons-1, iY]

xp[0, 0] = xp[0, 1]

xp[nLons, nLats] = xp[nLons, nLats-1]

xp[0, nLats] = xp[0, nLats-1]

xp[nLons, 0] = 2 * xp[nLons-1, 0] - lons[nLons-1, 0]

# more yp

for iY in np.arange(1, nLats):

yp[0, iY] = (lats[0, iY-1] + lats[0, iY])/2.0

yp[nLons, iY] = (lats[nLons-1, iY-1] + lats[nLons-1, iY])/2.0

yp[0, 0] = yp[1, 0]

yp[nLons, nLats] = yp[nLons-1, nLats]

yp[0, nLats] = 2 * yp[0, nLats-1] - lats[0, nLats-1]

yp[nLons, 0] = yp[nLons-1, 0]

plot = ax.scatter(lons, lats, c = v, cmap=cmap, vmin = mini, vmax = maxi)

return plot

#----------------------------------------------------------------------------

# make a figure with all of the block plotted for the specified variable

# and altitude

#----------------------------------------------------------------------------

def plot_all_blocks(allBlockData, varToPlot, altToPlot, plotFile):

fig = plt.figure(figsize=(10, 10))

ax = fig.add_subplot(111)

mini, maxi = determine_min_max(allBlockData, varToPlot, altToPlot)

i = 0

for data in allBlockData:

if (i < 100):

plot = plot_block(data, varToPlot, altToPlot, ax, mini, maxi, i)

i = i+1

cbar = fig.colorbar(plot, ax = ax)

cbar.set_label(varToPlot)

ax.set_title(varToPlot)

ax.set_xlabel('Longitude (deg)')

ax.set_ylabel('Latitude (deg)')

print(' --> Outputting plotfile : ', plotFile)

fig.savefig(plotFile)

plt.close(fig)

#----------------------------------------------------------------------------

# Read all of the block files in, given the core filename

#----------------------------------------------------------------------------

def read_block_files(coreFile, isNetCDF, isVerbose = True):

if (isVerbose):

print(' --> Figuring out coreFile : ', coreFile)

if (isNetCDF):

fileList = sorted(glob(coreFile + '_g*.nc'))

filetype = "netcdf"

else:

fileList = sorted(glob(coreFile + '_g*.json'))

filetype = "json"

header = read_aether_headers(fileList, filetype=filetype)

allBlockData = []

for iFile, file in enumerate(fileList):

if (isVerbose):

print(' Reading file : ', file)

if (isNetCDF):

varsToRead = header['vars']

data = read_aether_file(file, file_vars=varsToRead)

else:

varsToRead = range(len(header['vars']))

data = read_aether_one_binary_file(header,

iFile,

varsToRead,

isVerbose = isVerbose)

allBlockData.append(data)

return allBlockData, fileList

#----------------------------------------------------------------------------

# return the nLons (nX), nLats (nY), and nAlts (nZ) of a block's data

#----------------------------------------------------------------------------

def get_sizes(allBlockData):

lon3d = np.asarray(allBlockData[0][0])

s = lon3d.shape

nX = s[0]

nY = s[1]

nZ = s[2]

return nX, nY, nZ

#----------------------------------------------------------------------------

# Write a NetCDF file from the data

#----------------------------------------------------------------------------

def write_netcdf(allBlockData, fileName, \

isVerbose = True, \

isConsolidated = False):

if (isVerbose):

print(' Outputting file : ', fileName)

ncfile = Dataset(fileName, 'w')

if (not isConsolidated):

oneBlock = allBlockData[0]

nBlocks = len(allBlockData)

nLons, nLats, nZ = get_sizes(allBlockData)

block_dim = ncfile.createDimension('block', None)

else:

oneBlock = allBlockData

nLons, nLats, nZ = np.shape(allBlockData[0])

lon_dim = ncfile.createDimension('lon', nLons)

lat_dim = ncfile.createDimension('lat', nLats)

z_dim = ncfile.createDimension('z', nZ)

time_dim = ncfile.createDimension('time', None)

time_out = ncfile.createVariable('time', np.float64, ('time',))

time_out[0] = datetime_to_epoch(oneBlock["time"])

allNetCDFVars = []

# create all of the variables

varList = []

for iV, v in enumerate(oneBlock['vars']):

if (v == 'alt'):

v = 'z'

varList.append(v)

if ('long_name' in oneBlock):

longName = oneBlock['long_name'][iV]

else:

longName = v

unitName = oneBlock['units'][iV]

if (isConsolidated):

allNetCDFVars.append(ncfile.createVariable(v, np.float32, \

('lon', 'lat', 'z')))

else:

allNetCDFVars.append(ncfile.createVariable(v, np.float32, \

('block', 'lon', 'lat', 'z')))

allNetCDFVars[-1].units = unitName

allNetCDFVars[-1].long_name = longName

if (isConsolidated):

tmp = np.asarray(allBlockData[iV])

allNetCDFVars[-1][:,:,:] = tmp

else:

for iB, oneBlock in enumerate(allBlockData):

tmp = np.asarray(oneBlock[iV])

allNetCDFVars[-1][iB,:,:,:] = tmp

ncfile.close()

#----------------------------------------------------------------------------

# Write a hdf5 file from the data

#----------------------------------------------------------------------------

def write_hdf5(allBlockData, fileName, isVerbose = True):

if (isVerbose):

print(' Outputting file : ', fileName)

hdf5file = File(fileName, 'w')

nBlocks = len(allBlockData)

nLons, nLats, nZ = get_sizes(allBlockData)

lon_dim = hdf5file.create_dataset('nlons', data = [nLons])

lat_dim = hdf5file.create_dataset('nlats', data = [nLats])

z_dim = hdf5file.create_dataset('nalts', data =[nZ])

block_dim = hdf5file.create_dataset('nblocks', data = [nBlocks])

oneBlock = allBlockData[0]

time_out = [datetime_to_epoch(oneBlock["time"])]

hdf5file.create_dataset('time', data = time_out, dtype = np.float64)

allHDF5Datasets = []

# create all of the variables

varList = []

for iV, v in enumerate(oneBlock['vars']):

if (v == 'alt'):

v = 'z'

varList.append(v)

if ('long_name' in oneBlock):

longName = oneBlock['long_name'][iV]

else:

longName = v

unitName = oneBlock['units'][iV]

allHDF5Datasets.append(hdf5file.create_dataset(v, dtype = np.float32, \

shape = (nBlocks, nLons, nLats, nZ)))

allHDF5Datasets[-1].units = unitName

allHDF5Datasets[-1].long_name = longName

for iB, oneBlock in enumerate(allBlockData):

tmp = np.asarray(oneBlock[iV])

allHDF5Datasets[-1][iB,:,:,:] = tmp

hdf5file.close()

#----------------------------------------------------------------------------

# copy block data in one file

#----------------------------------------------------------------------------

def copy_or_add_block_data(allBlockData,

oldBlockData = [],

factor = 1.0):

if (len(oldBlockData) > 0):

doAdd = True

else:

doAdd = False

newBlockData = []

for ib, oneBlock in enumerate(allBlockData):

obCopy = {}

for key in oneBlock.keys():

if (type(key) == int):

if (doAdd):

obCopy[key] = oldBlockData[ib][key] + \

oneBlock[key] * factor

else:

obCopy[key] = oneBlock[key] * factor

else:

obCopy[key] = oneBlock[key]

newBlockData.append(obCopy)

return newBlockData

#----------------------------------------------------------------------------

# copy block data in one file

#----------------------------------------------------------------------------

iCopy_ = 0

iAdd_ = 1

iSub_ = 2

iMult_ = 3

iPower_ = 4

def do_math_on_block_data(blockData1,

blockData2 = [],

math = iCopy_,

factor = 1.0,

iLowestVar = 3):

newBlockData = []

for ib, oneBlock in enumerate(blockData1):

obCopy = {}

for key in oneBlock.keys():

if (type(key) == int):

if (key >= iLowestVar):

if (math == iCopy_):

obCopy[key] = oneBlock[key] * 1.0

if (math == iAdd_):

obCopy[key] = oneBlock[key] + blockData2[ib][key]

if (math == iSub_):

obCopy[key] = oneBlock[key] - blockData2[ib][key]

if (math == iMult_):

obCopy[key] = oneBlock[key] * factor

if (math == iPower_):

obCopy[key] = oneBlock[key] ** factor

else:

obCopy[key] = oneBlock[key]

else:

obCopy[key] = oneBlock[key]

newBlockData.append(obCopy)

return newBlockData

#----------------------------------------------------------------------------

# Calc Standard Deviation of Ensemble Run

#----------------------------------------------------------------------------

def calc_std_of_ensembles(filesInfo,

ensembleIndexList,

ensembleMean):

for i, iF in enumerate(ensembleIndexList):

cF = filesInfo[iF]['coreFile']

nC = filesInfo[iF]['isNetCDF']

print('---> Going back through corefiles: ', cF)

allBlockData, filelist = read_block_files(cF, nC)

# subtract

diff = do_math_on_block_data(allBlockData,

blockData2 = ensembleMean,

math = iSub_)

# square

diffs = do_math_on_block_data(diff,

factor = 2,

math = iPower_)

if (i == 0):

sums = do_math_on_block_data(diffs,

math = iCopy_)

else:

sums = do_math_on_block_data(sums,

blockData2 = diffs,

math = iAdd_)

factor = 1.0 / fileInfo['ensembleMembers']

sumsD = do_math_on_block_data(sums,

factor = factor,

math = iMult_)

stdData = do_math_on_block_data(sumsD,

factor = 0.5,

math = iPower_)

return stdData

#----------------------------------------------------------------------------

# Test to see if grid is uniform:

#----------------------------------------------------------------------------

def calc_if_uniform_grid(dataToWrite):

nBlocks = len(dataToWrite)

# Let's figure out if we have a uniform horizontal grid:

isUniform = True

for iBlock in range(nBlocks):

# Assume first 3 variables are lon, lat, alt:

longitude = dataToWrite[iBlock][0]

latitude = dataToWrite[iBlock][1]

if (iBlock == 0):

dLon = longitude[1, 0, 0] - longitude[0, 0, 0]

dLat = latitude[0, 1, 0] - latitude[0, 0, 0]

else:

dLonT = longitude[1, 0, 0] - longitude[0, 0, 0]

dLatT = latitude[0, 1, 0] - latitude[0, 0, 0]

if (np.abs(dLat - dLatT) > dLat/1000.0):

isUniform = False

if (np.abs(dLon - dLonT) > dLon/1000.0):

isUniform = False

return isUniform

#----------------------------------------------------------------------------

# Figure out number of ghostcells

# - Simple method works if grid touches the south pole

#----------------------------------------------------------------------------

def calc_ghostcells(dataToWrite):

nGCs = -1

# ---------------------------------------------

# Try simple method first:

# Assume first 3 variables of first block are lon, lat, alt:

lon1d = dataToWrite[0][0][:, 0, 0]

lat1d = dataToWrite[0][1][0, :, 0]

nGCs = 0

while (lat1d[nGCs] < -90.0):

# Checking to see how many points are below south pole:

nGCs = nGCs + 1

if (nGCs < 0):

# Didn't find GCs, test longitude

while (lon1d[nGCs] < 0):

# Checking to see how many points are below south pole:

nGCs = nGCs + 1

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Aether/srcPython/postAether.py at refs/heads/develop · AetherModel/Aether · GitHub

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