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data.py
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data.py
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# -*- coding: utf-8 -*-
"""
Created on Sun Jul 21 20:24:45 2013
@author: xianl_000
"""
######## This is a combined module of wind, tide and river flow hindcast/forecast automation
######## Separate modules for wind, tide and inflow hindcast/forecast are also available at (our github or our research website)
############################################################################################
## simulation time period: 7/21 0:00-7/23 0:00
## because of model a 7 days model spin-up (7 more days hindcasts), the data start time should be 7 days less than the model simulation start time
timeperiod=['start:','07','14','2013','end:','07','23','2013']
####### Wind #########
# Download wind forecast data from "http://seawater.tamu.edu/tglopu/twdb_lc.tar" and save it at "wind/twdb_1c.tar".
import os
dire=os.path.dirname(__file__)
import urllib
os.mkdir(dire+'wind')
url = 'http://seawater.tamu.edu/tglopu/twdb_lc.tar'
path = dire+'wind/twdb_1c.tar'
data = urllib.urlopen(url).read()
f = file(path,'wb')
f.write(data)
f.close()
# decide whether the download process is over and unzip the tar file to 'D:/wind' when the download is over.
import tarfile
from contextlib import closing
path = dire+'wind/twdb_1c.tar'
if os.path.isfile(dire+'wind/twdb_1c.tar'):
os.mkdir(dire+'wind/wind_data')
with closing(tarfile.open(dire+'wind/twdb_1c.tar','r')) as t:
t.extractall(dire+'wind/wind_data')
# Step one to create wind.th---delet the first few lines of twdb051.wndq file and save it as wind1.th
string1='*'
a=open(dire+'wind/wind_data/twdb051.wndq', 'r').readlines() # read file in lines
open(dire+'wind/wind.txt','w').write('') # empty wind.txt file
for x in a:
if string1 in x: # if c in x line, skip
continue
open(dire+'wind/wind.txt','a').write(x)
string2='days'
d=open(dire+'wind/wind.txt','r').readlines()
open(dire+'wind/wind1.th','w').write('')
for y in d:
if string2 in y:
continue
open(dire+'wind/wind1.th','a').write(y)
### UPDATE_5_29_2014 ###
## create wind.WND for PyGNOME ##
file000 = open(dire+'wind/wind1.th','r')
row000=[]
for s in file000.readlines():
column=[]
line=s.split()
for field in line: column.append(field)
row000.append(column)
file000.close
for i in range(len(row000)):
row000[i].append(i)
for i in range(len(row000)):
## wind direction
row000[i][6]=row000[i][5]
## wind magnitude
row000[i][5]=str(float(row000[i][4])*0.447)+','
## time
row000[i][4]='00,'
row000[i][3]=row000[i][3]+','
row000[i][1]=str('%01d' % int(row000[i][1]))+','
stock=row000[i][0]
row000[i][0]=str('%01d' % int(row000[i][2]))+','
row000[i][2]=stock[-2:]+','
ff=open(dire+'GNOME/wind.WND','w')
ff.write('twdb051'+'\n')
ff.write('27.798 -97.311'+'\n')
ff.write('mps'+'\n')
ff.write('LTime'+'\n')
ff.write('0,0,0,0,0,0,0,0'+'\n')
for i in (row000):
k=' '.join([str(j) for j in i])
ff.write(k+'\n')
ff.close
# Step two of create wind.th---delet the first few useless columns of wind1.th and save it in the list 'row'
file0 = open(dire+'wind/wind1.th','r')
row=[]
for s in file0.readlines(): # creat the 2D list to store the data
column=[]
line=s.split()
for field in line: column.append(field)
row.append(column)
file0.close
# make record of what time period of wind data are required
# note that there is a 7 day's spin-up, so the the required time period should add a 7 days spin-up to form a hindcast
days=[]
for day in range(len(row)):
days.append(row[day][1]+row[day][2])
start=days.index(timeperiod[1]+timeperiod[2]) # input start time in terms of "Mon+Day"
end=days.index(timeperiod[5]+timeperiod[6]) # input end time in unit "Mon+Day" (note: the start time = simulation start time-7)Day
for m in range(len(row)):
row[m][0:4]=[]
# Step three of create wind.th---transfer data format and save it as 'D:/wind.th'
import string
import math
for n in range(len(row)):
aa=string.atof(row[n][0]);bb=string.atof(row[n][1])
row[n][0]=0.447*aa*math.sin(bb*math.pi/180);row[n][1]=0.447*aa*math.cos(bb*math.pi/180)
winds=[]
for wind in range(start,end+8):
winds.append(row[wind])
f=open(dire+'SELFE/1/wind.th','w')
for i in (winds):
k=' '.join([str(j) for j in i])
f.write(k+'\n')
f.close
#import shutil
# shutil.rmtree(dire+'wind') # whether or not to remove the raw data
####### Tide #########
# Download pwl and harmwl data from TCOON and save it to the location as path
# change time section of url for different time in order to get different elev.th
os.mkdir(dire+'tide')
url = 'http://lighthouse.tamucc.edu/pd?stnlist=014&serlist=pwl%2Charmwl&when='+timeperiod[1]+'.'+timeperiod[2]+'.'+timeperiod[3]+'-'+timeperiod[5]+'.'+timeperiod[6]+'.'+timeperiod[7]+'&whentz=UTC0&-action=c&unit=metric&elev=msl'
path = dire+'tide/elevation.txt'
data=urllib.urlopen(url).read()
f = file(path,'wb')
f.write(data)
f.close
# Step one to create elev.th---delet the first few lines and NA lines of elevation.txt file and save it as elev1.th
string1='#'
a=open(dire+'tide/elevation.txt', 'r').readlines() # read file in lines
open(dire+'tide/elev.txt','w').write('') # empty elevation.txt file
for x in a:
if string1 in x: # if c in x line, skip
continue
open(dire+'tide/elev.txt','a').write(x)
string2='NA'
d=open(dire+'tide/elev.txt','r').readlines()
open(dire+'tide/elev1.th','w').write('')
for y in d:
if string2 in y:
continue
open(dire+'tide/elev1.th','a').write(y)
# Step two of create elev.th---delet the first column of elev1.th and save it in the list 'row'
file1 = open(dire+'tide/elev1.th','r')
row=[]
for s in file1.readlines(): # creat the 2D list to store the data
column=[]
line=s.split()
for field in line: column.append(field)
row.append(column)
file1.close
row.pop() # delet the last useless element
for m in range(len(row)):
del row[m][0]
# calculate the mean difference between pwl and harmwl with N = 30 (3 hours)
sum=0
for n in range(len(row),len(row)-30,-1):
if row[n-1][0]== 'RM': row[n-1][0] = row[n-1][1]
aa=string.atof(row[n-1][0]);bb=string.atof(row[n-1][1])
diff=aa-bb
sum=sum+diff
x=sum/len(row)
# re-open elev.txt to edit it into selfe input
file1 = open(dire+'tide/elev.txt','r')
row1=[]
for q in file1.readlines(): # creat the 2D list to store the data
column1=[]
line1=q.split()
for field1 in line1: column1.append(field1)
row1.append(column1)
file1.close
row1.pop()
# find the index of the first 'NA'
for aa in range(len(row1)):
del row1[aa][0];del row1[aa][1] # because the first del delete the first column of the data, which make the data format change into [[],[]], so to delect the 'third' column of the 'raw' data, the second del's index becomes to be 1.
y=row1.index(['NA'])
file2 = open(dire+'tide/elev.txt','r')
row2=[]
for q in file2.readlines(): # creat the 2D list to store the data
column2=[]
line2=q.split()
for field2 in line2: column2.append(field2)
row2.append(column2)
file2.close
row2.pop()
for rr in range(len(row2)):
if row2[rr][1]== 'RM':
row2[rr][1] = row2[rr][2]
# add x with harmwl to creat the forecast part of pwl, set the return interval as 72 hours (72*60/6=720)
for i in range(y,len(row2)):
row2[i][1]=string.atof(row2[i][2])+x*(1-i/720)
for k in range(y):
row2[k][1]=string.atof(row2[k][1])
for m in range(len(row2)): # change time step and delet the third column to suit the selfe input format
row2[m][0]=360*m
del row2[m][2]
# interpolate in order to suit the selfe input
for t in range(len(row2)-1):
row2.insert(2*t+1,[(2*t+1)*180,(row2[2*t][1]+row2[2*t+1][1])/2])
del row2[0]
# save elev.th at specific location 'F:/elev.th'
h=open(dire+'SELFE/1/elev.th','w')
for l in row2:
g=' '.join([str(j) for j in l])
h.write(g+'\n')
h.close
#shutil.rmtree(dire+'tide') # whether or not to remove the raw data
####### River flow #########
# USGS websites for river flow data 5(available)/11(total)
os.mkdir(dire+'flux')
# time period
time='http://waterdata.usgs.gov/tx/nwis/uv?cb_00060=on&format=rdb&period=&begin_date='+timeperiod[3]+'-'+timeperiod[1]+'-'+timeperiod[2]+'&end_date='+timeperiod[7]+'-'+timeperiod[5]+'-'+timeperiod[6]+'&site_no='
# site number
copano2='08189200'
mission3='08189500'
aransas4='08189700'
nueces5='08211200'
oso8='08211520'
sitelist=[]
sitelist.append(copano2);sitelist.append(mission3);sitelist.append(aransas4)
sitelist.append(nueces5);sitelist.append(oso8)
weblist=[]
weblist.append(time+copano2);weblist.append(time+mission3);weblist.append(time+aransas4)
weblist.append(time+nueces5);weblist.append(time+oso8)
# read in 10 days flux.th (historical)
j = open(dire+'prototype_flux.th','r')
flux0=[]
for ss in j.readlines(): # creat the 2D list to store the data
columnn=[]
lines=ss.split()
for fields in lines: columnn.append(fields)
flux0.append(columnn)
j.close
del flux0[4800:] # only use 10(7 days hindcast(spin up) and 3 days forecast) days data
string1='#'
fflux=[]
# main loop for creating flux.th
for n in range(len(weblist)):
url = weblist[n]
path = dire+'flux/'+sitelist[n]+'.txt'
data=urllib.urlopen(url).read()
f = file(path,'wb')
f.write(data)
f.close
# Delete the first few line with #
a=open(dire+'flux/'+sitelist[n]+'.txt', 'r').readlines() # read file in lines
open(dire+'flux/'+sitelist[n]+'a.txt','w').write('') # empty elevation.txt file
for x in a:
if string1 in x: # if c in x line, skip
continue
open(dire+'flux/'+sitelist[n]+'a.txt','a').write(x)
# put data into list "row"
b = open(dire+'flux/'+sitelist[n]+'a.txt','r')
row=[]
for s in b.readlines(): # creat the 2D list to store the data
column=[]
line=s.split()
for field in line: column.append(field)
row.append(column)
b.close
del row[0]; del row[0]; row.pop() # delete useless stuff
# store river discharge in the list "flux"
flux=[]
for i in range(len(row)):
flux.append(row[i][5])
flux[i]=string.atof(flux[i])*0.02831685 # convert string to interger and unit of m3/s
# interpolate in order to suit the selfe input
for m in range(len(flux)-1):
aa=5*m;bb=5*m+1
flux[bb:bb]=[(flux[aa]+flux[bb])/2,(flux[aa]+flux[bb])/2,(flux[aa]+flux[bb])/2,(flux[aa]+flux[bb])/2]
# extend forecast data
number=len(flux0)-len(flux) # set how many data to extend
extend=flux[len(flux)-1] # use the last available data to extend
for y in range(number):
flux.append(extend)
fflux.append(flux)
# replace part of the historical data with the available forecast data
for v in range(len(flux0)):
flux0[v][2]=fflux[0][v] # copano2
flux0[v][3]=fflux[1][v] # mission3
flux0[v][4]=fflux[2][v] # aransas4
flux0[v][5]=fflux[3][v] # nueces5
flux0[v][8]=fflux[4][v] # oso8
# put the final flux.th in the SELFE direction
flux_th=open(dire+'SELFE/1/flux.th','w')
for i in (flux0):
k=' '.join([str(j) for j in i])
flux_th.write(k+'\n')
flux_th.close
# shutil.rmtree(dire+'flux') # whether or not to remove the raw data
###### run SELFE #####
import subprocess
subprocess.Popen('./run.sh',shell=False)