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bak_setup_gf_tools_arctic.py
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bak_setup_gf_tools_arctic.py
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#!/usr/bin/env python
#coding=utf-8
import os
import sys
from sys import *
from os import *
import math
import cmath
import re
import scipy
import string
import numpy
from numpy import *
from scipy.io import read_array, write_array
import shutil
import ConfigParser
from scipy.linalg import *
from scipy import io as s_io
import random as rdm
#import pickle as pp
from scipy.integrate import simps as simps
from subprocess import *
import Scientific.IO.NetCDF as sioncdf
import time
import calendar as cldr
import pymseed
#----------------------------------------------------------------------
#TODO: source indizes bei 1 anfangen lassen !!!!
#----------------------------------------------------------------------
pi = math.pi
#Earth's radius in metres
R = 6371000
#Conversion of degrees to/from radians
rad_to_deg = 180./pi
#accuracy factor - needed in comparison of time axes
accuracy = 0.001
#----------------------------------------------------------------------
_debug = 0
import code
import pdb
console = code.InteractiveConsole()
#----------------------------------------------------------------------
def read_in_config_file(filename):
"""Reads given config-file for setup GF-DB.
input:
-- filename (absolute or relative))
output:
-- configuration-dictionary
"""
print 'reading config_file...'
configfile = path.abspath(path.realpath(filename))
#set up configuration-dictionary
config = ConfigParser.ConfigParser()
#read in configuration-file
config.read(configfile)
cfg = dict()
#read in key-value pairs
sec = config.sections()
for s in sec:
o = config.options(s)
for oi in o:
oi_v = config.get(s,oi)
cfg[oi] = oi_v
if _debug:
print '%s \t\t = \t %s'%(str(oi),str(oi_v))
#if (1000%float(cfg['gf_in_dist_step']) !=0):
# print 'inadequate step-size...must be integer part of 1000'
# raise SystemExit
#working paths:
base_dir = path.abspath(path.realpath(cfg['base_dir']))
gf_dir = path.abspath(path.realpath(path.join(cfg['base_dir'],'DB','GF')))
data_dir = path.abspath(path.realpath(path.join(base_dir, cfg['data_dir'])))
#data input location:
data_dir_in = path.abspath(path.realpath(path.join(cfg['base_dir'],cfg['data_dir'])))
# Green's functions input location
gfdb_base_dir = path.abspath(path.realpath(cfg['gf_db_base_dir'] ))
gf_dir_input = path.abspath(path.realpath(path.join(gfdb_base_dir,cfg['gf_dir_input'] )))
# directory for temporary files:
temp_dir = path.abspath(path.realpath(path.join(cfg['base_dir'], 'temp' ) ))
# directory for temporary collecting suited GFs
temp_gf_dir = path.abspath(path.realpath(path.join(temp_dir,'gf_collected')))
if (not path.exists( base_dir ) ):
os.makedirs(base_dir)
if (not path.exists(gf_dir)):
os.makedirs(gf_dir)
if (not path.exists(data_dir) ):
os.makedirs(data_dir)
if (not path.exists(temp_dir)):
os.makedirs(temp_dir)
if (not path.exists(temp_gf_dir)):
os.makedirs(temp_gf_dir)
cfg['base_dir'] = base_dir
cfg['gf_dir'] = gf_dir
cfg['gf_dir_input'] = gf_dir_input
cfg['gfdb_base_dir'] = gfdb_base_dir
cfg['data_dir'] = data_dir
cfg['data_dir_in'] = data_dir_in
cfg['temporary_directory'] = temp_dir
cfg['temp_dir'] = temp_dir
cfg['temp_gf_dir'] = temp_gf_dir
return cfg
#----------------------------------------------------------------------
def set_GF_parameters(cfg):
print 'setting parameters...'
# event- and window- times:
eventtime = read_datetime_to_epoch(cfg['event_id'])
cfg['event_datetime_in_epoch'] = eventtime
current_year = time.gmtime(eventtime)[0]
cfg['current_year'] = current_year
current_day = time.gmtime(eventtime)[7]
cfg['current_day'] = current_day
parent_data_directory = path.realpath(path.abspath( path.join( str(cfg['data_dir']))))
# if (not path.exists(parent_data_directory)):
# print 'could not find data directory %s'%(parent_data_directory)
# os.makedirs(parent_data_directory)
# print 'dummy directory artificially set up'
cfg['parent_data_directory'] = parent_data_directory
if cfg.has_key('network_names'):
list_of_all_networks = cfg['network_names']
else:
cfg['network_names'] = ''
list_of_all_networks = cfg['network_names']
nw_list_raw = list_of_all_networks.split(',')
list_of_all_nw = []
for ii in nw_list_raw:
dummy_element = ii.strip()
dummy_element = dummy_element.upper()
list_of_all_nw.append(dummy_element)
cfg['list_of_networks'] = list_of_all_nw
list_of_all_networks = cfg['network_names']
if cfg.has_key('location_names'):
list_of_all_locations = cfg['location_names']
else:
cfg['location_names'] = ''
list_of_all_locations = cfg['location_names']
loc_list_raw = list_of_all_locations.split(',')
list_of_all_loc = []
for ii in loc_list_raw:
dummy_element = ii.strip()
dummy_element = dummy_element.upper()
list_of_all_loc.append(dummy_element)
cfg['list_of_locations'] = list_of_all_loc
if cfg.has_key('list_of_all_channels'):
list_of_all_channels_raw_string = cfg['list_of_all_channels']
else:
cfg['list_of_all_channels'] = 'BHN,BHE,BHZ'
list_of_all_channels_raw_string = cfg['list_of_all_channels']
channel_list_raw = list_of_all_channels_raw_string.split(',')
list_of_all_channels = []
for ii in channel_list_raw:
dummy_element = ii.strip()
dummy_element = dummy_element.upper()
list_of_all_channels.append(dummy_element)
cfg['list_of_channels'] = list_of_all_channels
# building config-dict entry 'channel_index_dictionary'
if not make_dict_channels_indices(cfg):
print 'ERROR'
exit()
# building config-dict entry 'grid_coordinates'
if not set_sourcepoint_configuration(cfg):
print 'ERROR in setting of sourcepoints'
exit()
#building config-dict entries 'station_coordinate_dictionary'(dict), 'station_index_dictionary'(dict),'list_of_stations'(list),'station_coordinates'(array)
if not set_station_configuration(cfg):
print 'ERROR in setting of stations '
exit()
#building config-dict entries 'receiver_nslc_dictionary', 'list_of_receivers', 'receiver_index_dictionary'
if not set_receiver_names(cfg):
print 'ERROR in setting of receiver names'
exit()
return 1
#---------------------------------------------------------------------
def read_datetime_to_epoch(datetime):
#TODO ersetze timie durch calendar
import calendar as cc
if len(datetime.split('.')) == 2:
milisecs = float('0.'+datetime.split('.')[1])
else:
milisecs = 0.
date = datetime.split('.')[0]
#print date,'\n'
format = '%Y-%m-%dT%H:%M:%S'
time_tuple = time.strptime(date,format)
epoch_seconds = time.mktime(time_tuple) - time.altzone + milisecs
return epoch_seconds
#---------------------------------------------------------------------
def make_dict_channels_indices(cfg):
list_of_channels = cfg['list_of_channels']
channel_index_dict ={}
for uu in list_of_channels:
if uu.endswith('N'):
channel_index_dict[uu] = 0
elif uu.endswith('E'):
channel_index_dict[uu] = 1
elif uu.endswith('Z'):
channel_index_dict[uu] = 2
else:
print 'ERROR 234'
exit()
channel_index_dict['0'] = 'N'
channel_index_dict['1'] = 'E'
channel_index_dict['2'] = 'Z'
channel_index_dict['N'] = 0
channel_index_dict['E'] = 1
channel_index_dict['Z'] = 2
channel_index_dict['n'] = 0
channel_index_dict['e'] = 1
channel_index_dict['z'] = 2
cfg['channel_index_dictionary'] = channel_index_dict
return 1
#---------------------------------------------------------------------
def set_receiver_names(cfg):
lo_stat = cfg['list_of_stations']
lo_chan = cfg['list_of_channels']
lo_loc = cfg['list_of_locations']
lo_nw = cfg['list_of_networks']
r_nslc_dict = {}
reclist = []
rec_index_dict = {}
idx_count = 1
for idx_nw in lo_nw:
for idx_stat in lo_stat:
for idx_loc in lo_loc:
for idx_chan in lo_chan:
temp_dict = {}
temp_dict['network'] = idx_nw
temp_dict['station'] = idx_stat
temp_dict['location'] = idx_loc
temp_dict['channel'] = idx_chan
receivername = '%s.%s.%s.%s'%(idx_nw,idx_stat,idx_loc,idx_chan)
rec_index_dict[receivername] = idx_count
rec_index_dict[str(idx_count)] = receivername
reclist.append(receivername)
r_nslc_dict[receivername] = temp_dict
idx_count += 1
cfg['receiver_nslc_dictionary'] = r_nslc_dict
cfg['list_of_receivers'] = reclist
cfg['receiver_index_dictionary'] = rec_index_dict
return 1
#---------------------------------------------------------------------
def set_station_configuration(cfg):
print 'setting station coordinates...'
station_coords_filename = path.realpath(path.abspath( path.join(cfg['base_dir'],cfg['station_coords_file']) ))
if int(cfg['use_station_file']):
if path.isfile(station_coords_filename):
print 'by reading from existing file:\n',station_coords_filename
else:
station_coords_filename_in = path.realpath(path.abspath( path.join(cfg['base_dir'],cfg['station_coords_file'])))
if path.isfile(station_coords_filename_in):
print 'by reading from file:\n',station_coords_filename_in
shutil.copy(station_coords_filename_in,station_coords_filename)
else:
exit('station coordinate file %s not found '%(station_coords_filename_in))
if not read_station_coordinates(cfg):
exit('ERROR! Could not read station coordinates from file %s !\n'%(station_coords_filename))
#else:
# exit( 'ERROR - station coordinate file not found !\n Please provide file %s !\n' %(station_coords_filename))
else:
print 'by building artificial station grid (spiral shaped) using specifications in config file\n'
central_latitude_raw_string = cfg['central_latitude']
central_latitude_raw = central_latitude_raw_string.split(',')
if len(central_latitude_raw) == 3 or len(central_latitude_raw) == 1 :
for central_latitude_raw_element in central_latitude_raw:
dummy5 = central_latitude_raw_element.split('.')
if not ( len(dummy5) in [1,2]):
print 'ERROR!! Wrong coordinate format for latitude of sourcepoint grid center!!!'
exit()
for dummy5_element in dummy5:
if not ( dummy5_element.isdigit() ):
print 'ERROR!! Wrong coordinate format for latitude of sourcepoint grid center!!!'
exit()
if len(central_latitude_raw) == 3:
central_latitude_deg = float( float( central_latitude_raw[0]) + (1./60. * ( float(central_latitude_raw[1]) + (1./60. * float(central_latitude_raw[2]) ))))
else:
central_latitude_deg = float(central_latitude_raw[0])
central_longitude_raw_string = cfg['central_longitude']
central_longitude_raw = central_longitude_raw_string.split(',')
if len(central_longitude_raw) == 3 or len(central_longitude_raw) == 1 :
for central_lonitude_raw_element in central_longitude_raw:
dummy5 = central_lonitude_raw_element.split('.')
if not ( len(dummy5) in [1,2]):
print 'ERROR!! Wrong coordinate format for longitude of sourcepoint grid center!!!'
exit()
for dummy5_element in dummy5:
if not ( dummy5_element.isdigit() ):
print 'ERROR!! Wrong coordinate format for longitude of sourcepoint grid center!!!'
exit()
if len(central_longitude_raw) == 3:
central_longitude_deg = float( float( central_longitude_raw[0]) + (1./60. * ( float(central_longitude_raw[1]) + (1./60. * float(central_longitude_raw[2]) ))))
else:
central_longitude_deg = float(central_longitude_raw[0])
lat0 = central_latitude_deg
lon0 = central_longitude_deg
distmin = int(cfg['stat_dist_min'])
diststep = int(cfg['stat_radial_dist_step'])
station_index_dict ={}
if cfg.has_key('list_of_all_stations'):
list_of_stations_raw_string = cfg['list_of_all_stations']
station_list_raw = list_of_stations_raw_string.split(',')
list_of_stations = []
count = 0
for ii in station_list_raw:
dummy_element = ii.strip()
dummy_element = dummy_element.upper()
list_of_stations.append(dummy_element)
index = count
station_coordinate_dict[dummy_element] = index
station_coordinate_dict[str(index)] = dummy_element
count += 1
else:
if not cfg.has_key('n_stations'):
print "ERROR! Either provide number of stations as 'n_stations' or give 'list_of_all_stations'"
raise SystemExit
else:
list_of_stations=[]
number_of_stations = int(cfg['n_stations'])
chars = 'abcdefghijklmnopqrstuvwxyz'
for jj in xrange(number_of_stations):
charslist = ''.join( [ chars[jj] ] + [ rdm.choice(chars) for i in xrange(4) ])
station = charslist.upper()
list_of_stations.append(station)
station_index = jj
station_index_dict[station] = jj
station_index_dict[str(jj)] = station
s_number = len(list_of_stations)
stat_coords = zeros((s_number,4),float)
for idx_r in xrange(s_number):
azimuth = (idx_r + 1) * 350./float(s_number)
dist = float(distmin + idx_r * diststep)
dist_north = dist * cos(azimuth / rad_to_deg)
dist_east = dist * sin(azimuth / rad_to_deg)
lat_shift = dist_north * rad_to_deg /R
lat_rec = lat0 + lat_shift
lon_shift = dist_east * rad_to_deg / (R * sin((90.-lat_rec)/rad_to_deg))
lon_rec = lon0 + lon_shift
stat_coords[idx_r,0] = int(idx_r)
stat_coords[idx_r,1] = lat_rec
stat_coords[idx_r,2] = lon_rec
stat_coords[idx_r,3] = 0.
rec_co_file = file(station_coords_filename,'w')
stat_co_conf = ConfigParser.ConfigParser()
station_coordinate_dict = {}
for hh in xrange(s_number):
temp_dict={}
stat_idx = int(stat_coords[hh,0])
stationname = station_index_dict[str(stat_idx)]
lat = stat_coords[hh,1]
lon = stat_coords[hh,2]
stat_co_conf.add_section(stationname)
stat_co_conf.set(stationname,'lat',str(lat))
stat_co_conf.set(stationname,'lon',str(lon))
stat_co_conf.set(stationname,'index',str(stat_idx))
temp_dict['lat'] = lat
temp_dict['lon'] = lon
temp_dict['index'] = stat_idx
station_coordinate_dict[stationname] = temp_dict
stat_co_conf.write(rec_co_file)
rec_co_file.close()
cfg['list_of_stations'] = list_of_stations
cfg['station_coordinates'] = stat_coords
cfg['station_coordinate_dictionary'] = station_coordinate_dict
cfg['station_index_dictionary'] = station_index_dict
print " station <-> coordinates dictionary set up " #in %s "%(cfg['station_coordinate_dictionary'] )
return 1
#---------------------------------------------------------------------
def read_station_coordinates(cfg):
#station_coordinate_filename = cfg['station_coords_file']
station_coordinate_file = path.realpath(path.abspath(path.join(cfg['base_dir'], cfg['station_coords_file'] )))
if not path.isfile(station_coordinate_file):
exit( 'file with station coordinates not found !')
config_filehandler = ConfigParser.ConfigParser()
config_filehandler.read(station_coordinate_file)
list_of_stations = []
station_coordinate_dict = {}
station_index_dict = {}
lo_stat_index = []
sections = config_filehandler.sections()
for sec in sections:
list_of_stations.append(sec)
temp_lat_lon_dict ={}
options = config_filehandler.options(sec)
for opt in options:
value = config_filehandler.get(sec,opt)
if opt == 'lat' or opt == 'latitude' or opt == 'lon' or opt == 'longitude':
if opt == 'latitude':
opt = 'lat'
if opt == 'longitude':
opt = 'lon'
try:
lat_lon = value.split(',')
except:
print 'ERROR!! Wrong coordinate format for ',opt, ' of station ', sec,'!!!'
raise SystemExit
if len(lat_lon) == 3 or len(lat_lon) == 1 :
for lat_lon_element in lat_lon:
dummy3 = lat_lon_element.split('.')
if not ( len(dummy3) in [1,2]):
print 'ERROR!! Wrong coordinate format for ',opt, ' of station ', sec,'!!! '
exit()
for dummy3_element in dummy3:
try:
int(dummy3_element)
except:
print 'ERROR!! Wrong coordinate format for ',opt, ' of station ', sec,'!!!'
raise SystemExit
if len(lat_lon) == 3:
lat_lon_deg = float( float( lat_lon[0]) + (1./60. * ( float(lat_lon[1]) + (1./60. * float(lat_lon[2]) ))))
else:
lat_lon_deg = float(lat_lon[0])
temp_lat_lon_dict[opt] = lat_lon_deg
if opt == 'index' or opt == 'idx':
station_index_dict[sec] = int(value)
station_index_dict[value] = sec
temp_lat_lon_dict[opt] = value
if not len(temp_lat_lon_dict) == 3:
print 'coordinates of station ',sec, ' are wrong - latitude and/or longitude and/or index missing !!!!!'
exit()
station_coordinate_dict[sec] = temp_lat_lon_dict
#filling array 'stat_coords'
s_number = len(list_of_stations)
stat_coords = zeros((s_number,4),float)
for hh in xrange(s_number):
stationname = station_index_dict[str(hh+1)]
temp_co_dict = station_coordinate_dict[stationname]
lat = float(temp_co_dict['lat'])
lon = float(temp_co_dict['lon'])
idx = int(temp_co_dict['index'])
stat_coords[hh,0] = int(idx)
stat_coords[hh,1] = lat
stat_coords[hh,2] = lon
cfg['station_coordinate_dictionary'] = station_coordinate_dict
cfg['station_index_dictionary'] = station_index_dict
cfg['list_of_stations'] = list_of_stations
cfg['station_coordinates'] = stat_coords
#save array for checking and plotting
#station_co_fn = 'station_coordinates.dat'
#station_co_file = path.abspath(path.realpath(path.join(cfg['base_dir'],station_co_fn)))
#savetxt(station_co_file,stat_coords,fmt=['%i','%.4f','%.4f','%.2f'])
print 'Station coordinates for %i stations ok!\n\n'%(s_number)
return 1
#---------------------------------------------------------------------
def set_sourcepoint_configuration(cfg):
"""
Setting geographical coordinates of source locations.
Indexing is done by looping over all source-points in the order (N,E,Z)
Input:
-- Config-dictionary
indirect Output:
-- File with coordinate-array (lat,lon,depth) in in base directory
-- array with source coordinates in config-dictionary
direct output:
-- control parameter
"""
print 'setting grid_coords...'
source_coords_filename = path.realpath(path.abspath( path.join(cfg['base_dir'],cfg['source_coords_file']) ))
northdim = int(cfg['northdim'])
eastdim = int(cfg['eastdim'])
depthdim = int(cfg['depthdim'])
northstep = int(cfg['northstep'])
eaststep = int(cfg['eaststep'])
depthstep = int(cfg['depthstep'])
N_N = int(2 * northdim + 1)
N_E = int(2 * eastdim + 1)
N_Z = int(depthdim)
N_tot = int(N_N * N_E * N_Z)
check_flag = 1
# if already existing and in right dimensions:
if path.isfile(source_coords_filename):
try:
File7 = file(source_coords_filename,'r')
grid_coords_array = loadtxt(File7, usecols=tuple(range(0,3)))
File7.close()
except:
print 'cannot read existing source coordinate file - generating new one'
check_flag = 0
if len(grid_coords_array) == N_tot:
print 'by reading from file:\n',source_coords_filename
else:
print 'existing source coordinate file has wrong number of entries - generating new file'
check_flag = 0
# otherwise set up new file:
if (not path.isfile(source_coords_filename)) or check_flag == 0 :
print 'by building source point grid (rectangular) using specifications in config file\n'
central_latitude_raw_string = cfg['central_latitude']
central_latitude_raw = central_latitude_raw_string.split(',')
if len(central_latitude_raw) == 3 or len(central_latitude_raw) == 1 :
for central_latitude_raw_element in central_latitude_raw:
dummy5 = central_latitude_raw_element.split('.')
if not ( len(dummy5) in [1,2]):
print 'ERROR!! Wrong coordinate format for latitude of sourcepoint grid center!!!'
exit()
for dummy5_element in dummy5:
if not ( dummy5_element.isdigit() ):
print 'ERROR!! Wrong coordinate format for latitude of sourcepoint grid center!!!'
exit()
if len(central_latitude_raw) == 3:
central_latitude_deg = float( float( central_latitude_raw[0]) + (1./60. * ( float(central_latitude_raw[1]) + (1./60. * float(central_latitude_raw[2]) ))))
else:
central_latitude_deg = float(central_latitude_raw[0])
central_longitude_raw_string = cfg['central_longitude']
central_longitude_raw = central_longitude_raw_string.split(',')
if len(central_longitude_raw) == 3 or len(central_longitude_raw) == 1 :
for central_lonitude_raw_element in central_longitude_raw:
dummy5 = central_lonitude_raw_element.split('.')
if not ( len(dummy5) in [1,2]):
print 'ERROR!! Wrong coordinate format for longitude of sourcepoint grid center!!!'
exit()
for dummy5_element in dummy5:
if not ( dummy5_element.isdigit() ):
print 'ERROR!! Wrong coordinate format for longitude of sourcepoint grid center!!!'
exit()
if len(central_longitude_raw) == 3:
central_longitude_deg = float( float( central_longitude_raw[0]) + (1./60. * ( float(central_longitude_raw[1]) + (1./60. * float(central_longitude_raw[2]) ))))
else:
central_longitude_deg = float(central_longitude_raw[0])
lat0 = central_latitude_deg
lon0 = central_longitude_deg
depth0 = int(cfg['min_depth'])
list_of_source_points = []
coord_array_temp = zeros((N_N,N_E,N_Z, 3),float64)
grid_coords_array = zeros((N_tot, 3),float64)
if _debug:
count = 1
gp_count = 0
for z1 in (arange(N_Z)):
depth = z1 * depthstep + depth0
current_radius = float(R) - depth
for e2 in (arange(N_E) - eastdim):
for n3 in (arange(N_N) - northdim):
#lat = lat0 + ( n3 * northstep * rad_to_deg / current_radius)
north_distance = n3 * northstep
east_distance = e2 * eaststep
#angle in degrees w.r.t. north
angle = float((90-arctan2(north_distance,east_distance)*float(rad_to_deg)))%360
#effective distance on regular rectangular grid
distance = sqrt(float(north_distance) **2 + float(east_distance)**2 )
#needed for input to trigonometric functions
azimuth = float(angle)/rad_to_deg
angular_distance = distance/float(current_radius)
#calculate coordinates for current grid point
lat_rad = arcsin(sin(lat0/rad_to_deg)*cos(angular_distance) + cos(lat0/rad_to_deg)*sin(angular_distance)*cos(azimuth))
lat = lat_rad*rad_to_deg
lon_rad = lon0/rad_to_deg + arctan2( sin(azimuth)*sin(angular_distance)*cos(lat0/rad_to_deg), cos(angular_distance) - sin(lat0/rad_to_deg) * sin(lat/rad_to_deg) )
lon = lon_rad*rad_to_deg
#lon = lon0 + ( e2 * eaststep * rad_to_deg / current_radius / sin( (90-lat)/rad_to_deg ) )
#put coordinates into array
#coord_array_temp[n3+int(northdim),e2+int(eastdim),z1, 0] = lat
#coord_array_temp[n3+int(northdim),e2+int(eastdim),z1, 1] = lon
#coord_array_temp[n3+int(northdim),e2+int(eastdim),z1, 2] = depth
grid_coords_array[gp_count, 0] = lat
grid_coords_array[gp_count, 1] = lon
grid_coords_array[gp_count, 2] = depth
gp_count += 1
if int(distance)==0:
print gp_count-1,lat,lon,depth
#if _debug:
# print count,north_distance,east_distance,angle,distance,'(',lat0,lon0,')',lat,lon
# count +=1
#d_break(locals(),'grid')
#exit()
#tot = 0
# for dummy1 in arange(N_tot):
#for z1 in arange(N_Z):
# for e2 in arange(N_E):
# for n3 in arange(N_N):
# grid_coords_array[tot, :] = coord_array_temp[n3,e2,z1,:]
# source_list_entry = [tot,n3,e2,z1]
# list_of_source_points.append(source_list_entry)
# tot += 1
#exit()
#File7 = file(source_coords_filename,'w')
savetxt(source_coords_filename,grid_coords_array)
#File7.close()
print 'wrote grid coordinates as array to file:\n',source_coords_filename
cfg['grid_coordinates'] = grid_coords_array
print 'Grid of %i source points ok!\n' %(len(grid_coords_array))
d_break(locals(),'SPs')
return 1
#----------------------------------------------------------------------
def rotate_traces(data_x,data_y,angle):
"""Rotating incoming traces (x,y) around the given angle in degrees (!) into (x',y').
Input data is given w.r.t. the basis (e_x,e_y), whereas the output data is presented w.r.t. new basis (e_x',e_y'). The rotation angle is positive from e_y' to e_y (counter clockwise)
Assuming orthogonal base and canonical naming: e.g. input 'x' (tranversal) ist turned to be 'east' and input 'y' (radial) to 'north'
Input:
-- data in positive x-direction
-- data in positive y-direction
-- angle in degrees
Output:
-- x'-data , y'-data
"""
from pylab import plot
rad_to_deg = 180./pi
rad_angle = angle/rad_to_deg
cphi = math.cos(rad_angle)
sphi = math.sin(rad_angle)
if ( len(data_x) != len(data_y) ):
print 'ERROR! Rotation not possible! Length of first trace : %i samples -- Length of second trace : %i samples'%(len(data_x),len(data_y))
print 'ERROR! Invoke function only with data traces of equal length!'
raise SystemExit
new_x, new_y = (data_x * cphi + data_y * sphi) , - data_x * sphi + data_y * cphi
return new_x, new_y
#----------------------------------------------------------------------
def distance_azi_backazi(coord_s,coord_r):
"""
Calculating distance between two geographical points on the earth's surface (given by coordinate pairs [latitude,longitude]), the azimuth from first to second point (clockwise) and the back_azimuth from second to first point (clockwise). Angles are given in degrees w.r.t north.
Input:
-- array with source coordinates in (lat,lon [,depth])
-- array with receiver coordinates in (lat,lon [,depth])
Output:
-- distance between surface projections of the source and receiver (in m), azimuth, back_azimuth
"""
lat1 = float(coord_s[0])/rad_to_deg
lon1 = float(coord_s[1])/rad_to_deg
lat2 = float(coord_r[0])/rad_to_deg
lon2 = float(coord_r[1])/rad_to_deg
distance_in_m = R * arccos( sin(lat1) * sin(lat2) + cos(lat1) * cos(lat2) * cos(lon2 - lon1) )
ddd = distance_in_m/R
def calc_backazi(s_lat,s_lon,r_lat,r_lon,sr_dist):
if sin(r_lon-s_lon) < 0:
tc1=arccos((sin(r_lat)-sin(s_lat)*cos(sr_dist))/(sin(sr_dist)*cos(s_lat)))
else:
tc1=2*pi-arccos((sin(r_lat)-sin(s_lat)*cos(sr_dist))/(sin(sr_dist)*cos(s_lat)))
if (cos(s_lat) < 0.000001) or (cos(r_lat) < 0.000001):
if (s_lat > 0):
tc1 = pi # starting from N pole
elif (s_lat < 0):
tc1 = 0. # starting from S pole
backazi = -tc1*rad_to_deg%360
return backazi
back_azimuth_r_s = calc_backazi(lat1,lon1,lat2,lon2,ddd)
azimuth_s_r = calc_backazi(lat2,lon2,lat1,lon1,ddd)
ba_d = int(back_azimuth_r_s)
ba_m = (back_azimuth_r_s-ba_d)*60.
ba_fm = int(ba_m)
ba_s = (ba_m-ba_fm)*60
ba_dsm = [ba_d,ba_fm,ba_s]
a_d = int(azimuth_s_r)
a_m = (azimuth_s_r-a_d)*60.
a_fm = int(a_m)
a_s = (a_m-a_fm)*60
a_dsm = [a_d,a_fm,a_s]
return distance_in_m, azimuth_s_r, back_azimuth_r_s
#----------------------------------------------------------------------
# def calc_distance(coord1,coord2,cfg):
# """
# Calculates the surface-distance between two points on earth.
# Input:
# -- array with coordinates of point 1 in (lat,lon)
# -- array with coordinates of point 2 in (lat,lon)
# Output:
# -- Distance on earth-surface between the the points (in m)
# """
# lat1 = coord1[0]/rad_to_deg
# lon1 = coord1[1]/rad_to_deg
# lat2 = coord2[0]/rad_to_deg
# lon2 = coord2[1]/rad_to_deg
# distance = R * arccos( sin(lat1) * sin(lat2) + cos(lat1) * cos(lat2) * cos(lon2 - lon1) )
# return distance
#----------------------------------------------------------------------
def neighbouring_distances(distance,dist_step):
"""
Calculating the two best fitting distances for setting the respective interval, containing the actual distance.
Input:
-- real distance in metres
-- step size of distance-grid/mesh in metres
Output:
-- array (lower_corner_distance,upper_corner_distance) in m
-- array (weighting factor for lower corner, weighting factor for upper corner)
"""
#calculate the div and modulo values
residual = distance%dist_step
lower = int(distance/dist_step)*dist_step
upper = lower + dist_step
w_lower = float(dist_step-residual)/float(dist_step)
w_upper = 1 - w_lower
distances = array([lower,upper])
weights = array([w_lower,w_upper])
# print distance,dist_step,anz, steps,km,m ,best_idx,upper_idx,lower_idx,dist_lower,dist_upper, weights
# exit()
return distances, weights
#----------------------------------------------------------------------
#----------------------------------------------------------------------
def setup_db_white_noise(cfg):
source_coords = cfg['grid_coordinates']
station_coords = cfg['station_coordinates']
station_coordinate_dict = cfg['station_coordinate_dictionary']
station_index_dict = cfg['station_index_dictionary']
receiver_index_dict = cfg['receiver_index_dictionary']
lo_gridpoints = list(arange(len(source_coords)))
lo_stat = cfg['list_of_stations']
lo_nw = cfg['list_of_networks']
lo_loc = cfg['list_of_locations']
lo_chan = cfg['list_of_channels']
lo_rec = cfg['list_of_receivers']
n_stations = len(lo_stat)
n_source = len(lo_gridpoints)
gf_dir_out = path.realpath(path.abspath(cfg['gf_dir']))
length = int(float(cfg['window_length_in_s']))
gf_sampling = float(cfg['gf_sampling_rate'])
gf_version = int(cfg['gf_version'])
gf_sampling_in_s = 1./gf_sampling
n_time = int(float(length) * gf_sampling) + 1
gf = zeros((n_stations, n_source, 3,6, n_time),float32)
for station in lo_stat:
outfilename = path.realpath(path.abspath(path.join( gf_dir_out, 'gf_v%(ver)i_length%(twl)i_sampling%(samp)i_station_%(stat)s.nc' %{'ver':gf_version,'twl':length,'samp':gf_sampling,'stat':station })))
idx_stat = int(float(station_index_dict[station]))
t_idx = 0
time_array = arange(n_time)*gf_sampling_in_s
alldataout = []
for idx_s in arange(n_source):
for idx_comp in arange(3):
for idx_m_comps in arange(6):
dummy_data = numpy.random.randn(n_time)*10.
alldataout.append(dummy_data)
print 'writing to file: ',outfilename,'\n'
outfile = sioncdf.NetCDFFile(outfilename, 'w')#, 'Created ' + time.ctime(time.time()))
outfile.title = "GF for station " + station
outfile.version = int(cfg['gf_version'])
outfile.createDimension('GF_idx', len(alldataout)+1)
outfile.createDimension('t', n_time)
GF_for_act_rec = outfile.createVariable('GF_for_cur_stat', 'f', ('t', 'GF_idx'))
temp = zeros((len(time_array),len(alldataout)+1), dtype=float32)
temp[:,0] = time_array.astype('float32')
temp[:,1:] = array(alldataout, dtype=float32).transpose()
GF_for_act_rec[:] = temp
#GF_for_act_rec[:,0] = time_array.astype('float32')
# for ll in arange(len(alldataout)):
# print "xxx"
# GF_for_act_rec[:,ll+1] = array(alldataout)[ll,:].astype('float32')
GF_for_act_rec.units = "'seconds' and 'arbitrary'"
outfile.close()
print 'gf for station '+ station + ' ... ok !!\n\n'
#----------------------------------------------------------------------
#----------------------------------------------------------------------
def setup_db_qseis(cfg):
"""
Building a Green's function database, stored in NetCDF format.
TODO :blabla
Input:
-- config-dictionary
indirect output
-- ...
"""