Data conversion
Hi-net provide waveform data in win32 format and instrument responses in a channel
table. win32 can convert them into SAC and SAC polezero formats.
>>> from HinetPy import win32
>>> data = "0101_201001010000_20.cnt"
>>> ctable = "0101_20100101.ch"
Extract Waveform Data
Extract waveform data of all channels as SAC format.
>>> win32.extract_sac(data, ctable)
Important
The SAC files converted from win32 format are NOT in digital counts!!!
win2sac_32 automatically removes sensitivity from waveforms and
multipy by 1.0e9. Thus, the SAC files are velocity in nm/s or
accelaration in nm/s/s.
The SAC files have a default filename STATION.COMPONENT.SAC (e.g. N.NABC.U.SAC).
You can specify another SAC suffix and a different output directory.
>>> win32.extract_sac(data, ctable, suffix="", outdir="SAC")
If you want to extract only a small subset of channels, you can use filter_by_id,
filter_by_name and/or filter_by_component to filter the channels.
They accept a list of string or a string contains wildcard.
>>> # extract 3 channles by id
>>> win32.extract_sac(data, ctable, filter_by_id=["3e83", "3e84", "3e85"])
>>> # extract all channels whose name match 'N.NA*'
>>> win32.extract_sac(data, ctable, filter_by_name="N.NA*")
>>> # extract vertical(U) component channels whose name match 'N.NA*'
>>> win32.extract_sac(data, ctable, filter_by_name="N.NA*", filter_by_component="U")
Extract PZ
extract_sacpz() can convert instrumental responses
from Hi-net’s channel table to SAC PZ format.
Warning
This function works for Hi-net network only.
F-net data users are highly recommended to use FnetPy to request waveform data in SEED format and extract instrumental responses in RESP or PZ format from SEED files.
Extract information of all channels as SACPZ file:
>>> win32.extract_sacpz(ctable)
The SACPZ file has a default name STATION.COMPONENT.SAC_PZ (e.g. N.NABC.U.SAC_PZ).
You can specify another SACPZ suffix and a different output directory.
>>> win32.extract_sacpz(ctable, suffix="SACPZ", outdir="PZ/")
If you want to extract only a small subset of channels, you can use filter_by_id,
filter_by_name and/or filter_by_component to filter the channels.
They accept a list of string or a string contains wildcard.
>>> # extract 3 channles by id
>>> win32.extract_sacpz(ctable, filter_by_id=["3e83", "3e84", "3e85"])
>>> # extract all channels whose name match 'N.NA*'
>>> win32.extract_sacpz(ctable, filter_by_name="N.NA*")
>>> # extract vertical(U) component channels whose name match 'N.NA*'
>>> win32.extract_sacpz(ctable, filter_by_name="N.NA*", filter_by_component="U")