def down_ion_dcb(ftp, time):
doy = common.ymd2doy(time.year, time.month, time.day)
yy = time.year - 2000 if time.year >= 2000 else time.year - 1900
gps_week, gps_dow = common.yrdoy2gpst(time_idx.year, doy)
condition_list = list()
condition_list.append('CODG{:03d}0.{:02d}I.Z'.format(doy, yy))
condition_list.append('P1C1{:2d}{:02d}.DCB.Z'.format(yy, time_idx.month))
condition_list.append('P1P2{:2d}{:02d}.DCB.Z'.format(yy, time_idx.month))
condition_list.append('P2C2{:2d}{:02d}_RINEX.DCB.Z'.format(
yy, time_idx.month))
local_dir = LOCAL_DIR + str(time.year) + '/' + str(
gps_week) + '/' + '{:03d}'.format(doy) + '/' + 'prods'
remote_dir = 'CODE/' + str(time.year)
if not os.path.exists(local_dir):
os.makedirs(local_dir)
ion_dcb_files = ftp.file_classification(remote_dir, condition_list,
'ion_dcb')
for file_name in ion_dcb_files:
if 'DCB' in file_name:
local_dir = LOCAL_DIR + str(time.year) + '/' + 'dcb'
else:
local_dir = LOCAL_DIR + str(time.year) + '/' + str(
gps_week) + '/' + '{:03d}'.format(doy) + '/' + 'prods'
if not os.path.exists(local_dir):
os.makedirs(local_dir)
local_path = os.path.join(local_dir, file_name.split('/')[-1])
if os.path.exists(local_path[:-2]):
print("%s is exit!" % local_path[:-2])
continue
remote_path = remote_dir + '/' + file_name.split('/')[-1]
ftp.down_file_single(local_path, remote_path)
ftp.decompress_file(local_path)
def down_igs_erpsnx(ftp, time):
"""
下载igs周解的erp和snx文件: ftp://igs.gnsswhu.cn/pub/gps/products/<week>/igs<yy>P<week>.<snx, erp>.Z
"""
doy = common.ymd2doy(time.year, time.month, time.day)
yy = time.year - 2000 if time.year >= 2000 else time.year - 1900
gps_week, gps_dow = common.yrdoy2gpst(time_idx.year, doy)
local_dir = LOCAL_DIR + str(time.year) + '/' + '{:d}/'.format(gps_week)
remote_dir = 'pub/gps/products/' + str(gps_week)
if not os.path.exists(local_dir):
os.makedirs(local_dir)
condition_list = list()
condition_list.append('igs%dP%d.erp.Z' % (yy, gps_week))
condition_list.append('igs%dP%d.snx.Z' % (yy, gps_week))
down_erpsnx_files = ftp.file_classification(remote_dir, condition_list,
'igs')
for file_name in down_erpsnx_files:
local_path = os.path.join(local_dir, file_name)
if os.path.exists(local_path[:-2]):
print('%s is exits!' % local_path[:-2])
continue
remote_path = os.path.join(remote_dir, file_name)
ftp.down_file_single(local_path, remote_path)
ftp.decompress_file(local_path)
def down_obs(ftp, down_sta_select, time):
"""
down_sta_select: 若为[], 则默认下载多有mgex测站数据; 不为空且为四位的测站名则下载指定的测站数据；也可指定测站所属国，如CHN
下载mgex的rinex3数据：ftp://igs.gnsswhu.cn/pub/gps/data/daily/
长文件名改成短文件名 <SITE><DOY>.<YY>o
数据存储在 /mgex/<YEAR>/<WEEK>/<DOY>/obs/
"""
doy = common.ymd2doy(time.year, time.month, time.day)
yy = time.year - 2000 if time.year >= 2000 else time.year - 1900
gps_week, gps_dow = common.yrdoy2gpst(time_idx.year, doy)
local_dir = LOCAL_DIR + str(time.year) + '/' + '{:d}/'.format(gps_week) \
+ '{:03d}/'.format(doy) + 'obs'
remote_dir = 'pub/gps/data/daily/' + str(
time.year) + '/' + '{:03d}'.format(doy) + '/' + '{:02d}d'.format(yy)
if not os.path.exists(local_dir):
os.makedirs(local_dir)
down_obs_files = ftp.file_classification(remote_dir, down_sta_select,
'obs')
for file_name in down_obs_files:
re_name = str.lower(
file_name[:4]) + '{:03d}0.'.format(doy) + '{:2d}o'.format(yy)
re_path = os.path.join(local_dir, re_name)
if os.path.exists(re_path):
print('%s is exits!' % re_path)
continue
local_path = os.path.join(local_dir, file_name)
remote_path = os.path.join(remote_dir, file_name)
ftp.down_file_single(local_path, remote_path)
src_path = ftp.decompress_file(local_path)
ftp.crx2rnx(local_dir, src_path, doy, yy)
def down_pre(ftp, ac_list, time):
"""
下载精密产品：ftp://igs.gnsswhu.cn/pub/gnss/products/mgex/<week>
只下载MGEX的长文件名数据，即GPS 2038周 2019 1 28 后
ac_list：发布机构 ['COD', 'GFZ', 'WUM']; 若为空则全部下载; GRG没提供erp暂不下载
数据存储在 /mgex/<YEAR>/<DOY>/products/<ac>
"""
doy = common.ymd2doy(time.year, time.month, time.day)
gps_week, gps_dow = common.yrdoy2gpst(time_idx.year, doy)
remote_dir = 'pub/gnss/products/mgex/' + str(gps_week)
if ac_list[0] is 'GBM':
remote_dir = 'GNSS/products/mgex/' + str(gps_week)
if not ac_list:
ac_list = ['COM', 'WUM', 'GRM']
for i in range(0, len(ac_list)):
local_dir = LOCAL_DIR + str(time_idx.year) + '/' + '{:d}/'.format(gps_week) \
+ str.lower(ac_list[i])
if not os.path.exists(local_dir):
os.makedirs(local_dir)
pre_files = ftp.file_classification(remote_dir, ac_list[i], 'pre')
for file_name in pre_files:
year = int(file_name[11:15])
doy = int(file_name[15:18])
gps_week, gps_dow = common.yrdoy2gpst(year, doy)
re_path = rename_pre(file_name[:-3], ac_list[i], local_dir,
gps_week, gps_dow)
if os.path.exists(re_path):
print('%s is exits!' % re_path)
continue
local_path = os.path.join(local_dir, file_name)
remote_path = os.path.join(remote_dir, file_name)
if ftp.down_file_single(local_path, remote_path) is False:
continue
dst_path = ftp.decompress_file(local_path)
os.rename(dst_path, re_path)
def down_cod_osb(ftp, time):
doy = common.ymd2doy(time.year, time.month, time.day)
gps_week, gps_dow = common.yrdoy2gpst(time_idx.year, doy)
remote_dir = 'pub/gnss/products/mgex/' + str(gps_week)
local_dir = LOCAL_DIR + str(time.year) + '/' + '{:d}/'.format(
gps_week) + '{:03d}/'.format(doy) + 'prods'
if not os.path.exists(local_dir):
os.makedirs(local_dir)
file_name = 'COD0MGXFIN_%04d%03d0000_01D_01D_OSB.BIA.gz' % (time.year, doy)
local_path = os.path.join(local_dir, file_name)
if os.path.exists(local_path[:-2]):
print("%s is exit!" % local_path[:-2])
return
remote_path = os.path.join(remote_dir, file_name)
ftp.down_file_single(local_path, remote_path)
ftp.decompress_file(local_path)
def down_cas_dcb(ftp, time):
doy = common.ymd2doy(time.year, time.month, time.day)
yy = time.year - 2000 if time.year >= 2000 else time.year - 1900
gps_week, gps_dow = common.yrdoy2gpst(time_idx.year, doy)
local_dir = LOCAL_DIR + str(time.year) + '/' + '{:d}/'.format(
gps_week) + '{:03d}/'.format(doy) + 'prods'
remote_dir = 'product/dcb/mgex/' + str(time.year) + '/'
if not os.path.exists(local_dir):
os.makedirs(local_dir)
file_name = 'CAS0MGXRAP_%04d%03d0000_01D_01D_DCB.BSX.gz' % (time.year, doy)
# file_name = 'CAS0MGXRAP_%04d%03d0000_01D_01D_OSB.BIA.gz' % (time.year, doy)
local_path = os.path.join(local_dir, file_name)
if os.path.exists(local_path[:-3]):
print("%s is exit!" % local_path[:-3])
return
remote_path = os.path.join(remote_dir, file_name)
ftp.down_file_single(local_path, remote_path)
ftp.decompress_file(local_path)
def down_nav(ftp, time):
"""
下载星历数据：ftp://igs.gnsswhu.cn/pub/gnss/mgex/daily/rinex3/<YEAR>/<DOY>/<YY>p/brdm<DOY>0.<YY>p.Z
数据存储在 /mgex/<YEAR>/<WEEK>/<DOY>/prods/
"""
doy = common.ymd2doy(time.year, time.month, time.day)
yy = time.year - 2000 if time.year >= 2000 else time.year - 1900
gps_week, gps_dow = common.yrdoy2gpst(time_idx.year, doy)
local_dir = LOCAL_DIR + str(time.year) + '/' + '{:d}/'.format(
gps_week) + '{:03d}/'.format(doy) + 'prods'
remote_dir = 'pub/gnss/mgex/daily/rinex3/' + str(
time.year) + '/' + '{:03d}'.format(doy) + '/' + '{:02d}p'.format(yy)
if not os.path.exists(local_dir):
os.makedirs(local_dir)
file_name = 'brdm%03d0.%02dp.Z' % (doy, yy)
local_path = os.path.join(local_dir, file_name)
if os.path.exists(local_path[:-2]):
print("%s is exit!" % local_path[:-2])
return
remote_path = os.path.join(remote_dir, file_name)
ftp.down_file_single(local_path, remote_path)
ftp.decompress_file(local_path)
def down_gbm_pre(ftp, time):
doy = common.ymd2doy(time.year, time.month, time.day)
gps_week, gps_dow = common.yrdoy2gpst(time_idx.year, doy)
remote_dir = 'pub/gnss/products/mgex/' + str(gps_week)