Obspy remove response. I am new in Python and Obspy so please be kind.

Obspy remove response D. remove_response. I download the data from FDSN WS. core. When I apply remove_response, I get extremely low-amplitude traces. I’d like to use the stream. geodetics. This is crucial for: - Comparing Sep 9, 2012 · I used attach_paz command and then tried to remove instrument response applying remove_response command. remove_response() is the right thing to use Some things come to mind. Even lower if I apply both remove_response and remove_sensitivity. stats 中的台站、台网信息拼接出 StationXML的文件名，并读取文件。 去除仪器响应 通过 trace. Sep 15, 2023 · Hello, I am trying to remove the instrument response from a mseed file after merge the data but when I plot the signal after remove the response the data is still in count. May 31, 2022 · st. 7. Jun 26, 2023 · A discussion on how to correct accelerometer data for instrument response and sensitivity using ObsPy functions. 044’) inv = read_inventory(“AM. The set-up I am using is a Trilium Compact 120s with an Omnirecs DataCube3 datalogger and I’m sampling at 200 Hz. remove_response() The reason I am asking, is because I had a strange experience today: I was using st = client. 2 documentation, zero_mean is set to True by default, and a small amount of tapering is applied too. remove_response method, and I’ve been able to do so successfully. attribdict import AttribDict import matplotlib. Also, filtering will happen at the same time when we remove the instrument response. from obspy import read_inventory ## Corner frequency of filter(Hz) pre_filt = [0. trace. The problem you have is the improper water level. However, in my opinion it is not beneficial to remove the response from the streams – a simple filter should be enough – because different seismogram components are deconvolved from each other. Can any help me to undestand what i am doing wrong? This is the code I made. Removing Instrumental Response in Seismology In seismology, raw seismic data is recorded in instrument-specific units such as volts or counts. The txt file should be included :the first column for time, the second column for E-W corrected velocity, and the fourth column for vertical velocity. seisSim function after upgrading obspy version and using python 2. g. Is there some Jun 12, 2024 · As you have a different seismometer model than the ones used with our Raspberry Shakes, I cannot be 100% sure, but I think you can use ObsPy’s seismometer correction and remove response features to achieve what you want. To make this data physically meaningful (e. 00. By setting it to the default 60 dB or setting it to none, the difference is huge and the results with the setting to none are definetely not correct and out of scale. remove_response — ObsPy 1. However using obspy I’m running into trouble reproducing the sac results for displacement and acceleration, whilst output of velocity is within acceptable tolerance. 6a). I was given RESP files, but they appear to be in a different format from what I’ve seen online. xml). Nov 17, 2016 · Hi, I was testing instrument response removal with two different files (RESP file and Station. mseed') # 分割字符串为列表 Dec 15, 2016 · (1) The function of remove_response for calculating displacement from accelerometers has no problem, if you give proper parameters. YL. Nov 15, 2023 · Dear All, I am looking at weather data (LKI, LRO, … channels). Jun 9, 2022 · Hi, I need to correct some waveforms from microtremor. simulate() method is one of the oldest methods in all of ObsPy - some of its default settings are historic and we used other one's in the Trace. mseed")) # 循环去响应 for file in mseedlst: st = read ('TEPE. simulate a Wood Anderson legacy instrument, etc etc Dec 2, 2024 · Hi, I would appreciate it if someone could help me out. invsim. from obspy import read from obspy. I download data from IRIS for a whole month for one station. Sep 18, 2024 · To remove the instrument response I’m using the remove_response () method on the Stream object (code example below) and set argument end_stage in the case I wish not to remove the FIR filters. I would appreciate it if someone could help me. If you revise water level of HNZ from 60 to 120, you will see much similar waveform between HHZ and HNZ. I can extract the poles and zeros with rdseed, but I would like to do that in Python to not call a different program first and then run my program in Python afterwards. Sep 6, 2024 · 文章浏览阅读1k次。Obspy去除仪器响应（remove_response）_去仪器响应 Jan 28, 2020 · Hello, Since some datacenters do not distribute dataless anymore but only stationXML, it is not possible to use the following function to remove instrument response anymore: client = obspy. Jun 2, 2022 · Starting to play with Python and Obspy and experimenting with removing the instrument response on my RS&B (R21C0). But when I tried to remove the response some files are showing the following error. That’s the essence of the receiver function method. make sure to properly stabilize the deconvolution process with either water_level or pre_filt or a combination of the two I cant see from the plot how long the record is, but I would recommend to have additional data at the start of the trace (if a zerophase filter is involved also at the end of the traces), e. Previously we’ve done this mainly using sac (v101. 2022. . ms… Dec 21, 2020 · I mass downloaded data and corresponding station. remove_response() passed without errors or warnings. However, I am still curious to understand how the correction procedure Seismic data process via ObsPy 1 Basic Seismic Data Processing 1. The attach_response is of course described as a polynomial response. Jun 18, 2019 · Dear All, I have bee trying remove response from seed files. My question is: does the time period for the dataless miniseed matter? Lets say I Jun 16, 2021 · Hi I’m trying to put together a script to simplify converting raw data to displacement, velocity, acceleration data. I ended up by just removing the sensitivity and filtering the traces. I used the following lines to remove the instrument response, but I was wondering if my procedure is correct? I need to remove the instrument response of this record and check the correlation with my simulation up to 5Hz. from obspy import UTCDateTime from Jun 15, 2025 · 在使用Obspy的`remove_response`函数去除地震数据的仪器响应时，常见的技术问题是如何正确设置输出类型（output参数）。 该参数决定了数据转换的目标单位，如“DISP”表示位移，“VEL”表示速度，“ACC”表示加速度。 错误设置可能导致结果与预期不符。 Oct 18, 2023 · Hello everyone, I would like to know how to remove instrument response by using sac pz response to get PGA and PGV in obspy or SAC? Best regards, moly We would like to show you a description here but the site won’t allow us. I am using the remove_response code outputting accelerations When playing with the water level parameter I observed a significant senstivity on this parameter. The reason is that accelerometer compensates more energy than velocity seismometer in lower frequency band Jan 8, 2018 · Define the name of the requested station to be processed For each channel of the requsted station remove the instrumental response and filter the data Plot the processed data To run the code please update the following folder paths according to your system: folder_excel folder_main Jun 19, 2019 · Dear All, I have bee trying remove response from seed files. The `f1`, `f2`, `f3`, `f4`, and `water_level` arguments are all handed off to ObsPy's `remove_response` function. remove_response() method. Is there any simple way to remove the polynomial response ? Is there any plan to modify remove_response to make it working for polynomial resp ? Thanks We would like to show you a description here but the site won’t allow us. R5868. Contribute to seismo-learn/software development by creating an account on GitHub. From another post, I was shown how to convert the RESP file into an XML format. Jun 7, 2022 · 使用BQmail申请地震数据后，要对地震数据进行去仪器响应。现在的数据格式为miniseed。 去仪器响应代码 # 代码如下： import obspy from obspy import read, read_inventory import glob import os # 搜索mseed列表 mseedlst = glob. You can use this to define the components in your set up and construct the full response and then use this stationxml as your inventory for calls to . Mar 31, 2022 · Hello I wanted to remove instrument response from my data in an offline manner. As megies mentioned above about the remove instrument response, the example of simulate is not as same as my sacpz file. remove_response() 方法去除仪器响应。 Mar 18, 2021 · Why does the following code not warn me there is no response file/info? from obspy import read st=read() st. Use inventory parameter to specify an inventory with response information. I was wondering if there is a way to remove the response of the sensors as if I use only one instrument, for example one intermediate frequency between the BB and the short period. clients. Mar 16, 2022 · You should switch to using read_inventory() and just provide that Inventory object to instrument response removal. Tutorials for popular seismological software. I need to use a txt file as an input file for my own Matlab code. But it shows that No response information found. 016, 0. remove_response() if you want to go to physical units. See the "instrument response" section of the manual for more details on how the instrument response is removed. simulate is to simulate your data as recorded by another instrument, different from the one used in the original recording (e. from obspy import read, read_inventory from glob import glob import os import matplotlib st = read Nov 28, 2022 · Hi, I am attempting to remove the instrument response from some seismic data. I followed the instruction using this link: https://d Nov 24, 2014 · I am trying to get PZ information from stationXML. Aug 18, 2021 · In this interactive tutorial built for a learning management system, students 1) download a Jupyter notebook from GitHub, 2) practice using basic Python syntax, 3) use the ObsPy library to retrieve a large number of seismograms from a single earthquakes using metadata criteria, 4) use the ObsPy library to remove the instrument response from Dec 15, 2020 · Yes, if you see obspy. I’d appreciate any clues as to why or how to fix it. Jan 28, 2016 · The Trace. We would like to show you a description here but the site won’t allow us. See examples, explanations and suggestions from experts and users. There are many methods listed for detrend function (simple, linear, constant …), please refer to obspy. I noticed that while output unit is velocity, outputs are matched. 013, 0. I just simply used obspy from obspy import read, read_inventory st = read(‘AM. pyplot as plt # Read Jun 17, 2019 · Dear All, I have bee trying remove response from seed files. Here’s my code: Here’s the raw count plot: and this is the waveform after removing the instrument response: Being a geophone If the response information is not already attached to the stream, then an inventory object must be provided. It seems Obspy cannot handle. 1-2 In such cases, the response of the instrument must be removed before the data can be used in any meaningful way. ms… Feb 17, 2023 · Hi dear community!! I want to process a network that have two different kind of sensors: broad band and short period. EHZ. invsim import corn_freq_2_paz st = read(r"C:\\Users\\NAV\\Desktop\\Van018 We would like to show you a description here but the site won’t allow us. 1 documentation 1 Like navids94 June 13 通过读取 trace. , velocity in m/s or acceleration in m/s²), it is necessary to remove the instrument response. I’m getting a long period oscillation in the waveform after removing the instrument response. Jul 10, 2022 · Avoid duplicates I searched existing issues Bug Summary Hello, I need to create new stationxml files for removing instrument response purposes. Here’s the script: # Import third-party libraries from pathlib import Path from obspy import read_events, read, read_inventory, UTCDateTime from obspy. Oct 11, 2023 · Hello, I am working on a script to remove the instrument response for a large number of earthquakes in sac format. 4. You can find more information here (and, in general, over all their documentation): Seismometer Correction/Simulation — ObsPy 1. Jun 1, 2023 · You might find it easiest to construct a stationxml using a tool like nexus. detrend To better visualize and demonstrate the effect of detrending, we will provide some examples with significant trends, and We would like to show you a description here but the site won’t allow us. I am new in Python and Obspy so please be kind. Also in general you want to use Stream/Trace. We would like to show you a description here but the site won’t allow us. get_waveforms(attach_response=True) and was getting waveform data, but no response info, still: st. xml files from IRIS using Obspy. Is this supposed to happen or am I We would like to show you a description here but the site won’t allow us. 033, 0. util. Presumably I’ve missed out on some important point We would like to show you a description here but the site won’t allow us. Jun 26, 2024 · Hello, I was wondering if there is a way to export or save the corrected waveform as a txt file. Oct 3, 2018 · Dear community I was wondering how to combine remove_sensitivity and remove_response for accelerograms (channel HN*). I’m attempting to remove instrument response using a PAZ dictionary. 1 Detrend / Filter Data detrend() is provided to remove a trend from the trace. Aug 28, 2018 · I am trying to remove the response from K-net traces. However, when output unit is v How determine the 4 frequencies that Transfer function in SAC requires to remove the instrumental response of continuous data? Dec 5, 2012 · Hi Tobias, I finally managed to remove instrument response using the obspy. remove_response(inventory=inv, pre_filt=pre_filt, output=“VEL”,water_level=60, plot=True) then I got a errormessage ValueError: No We would like to show you a description here but the site won’t allow us. I use the following script which is based on the tutorial example to remove response : from obspy import read, read_inventory st = read (“20180203_0000_z. To be sure the result was good, I compared the deconvolution computed with obspy (SeisSim) and the deconvolution computed with evalresp (sac method). Please check out the documentation of ObsPy. glob (os. And unfortunately the “remove_response” does not work for polynomial. 045] ## read in stationxml file We would like to show you a description here but the site won’t allow us. Mar 6, 2019 · Apologies in advance for the basic question, but I am a new Obspy user. However, when I call remove_response using the two different inventories (one from RESP, one from XML), I get different results. base import gps2dist_azimuth from obspy. This process transforms the data from instrumental domain to physical units. Any advice? Thanks in advance! Aug 12, 2023 · Not sure if this is a usage issue or something else. Trace. I also download dataless miniseed txt file from IRIS for the same time period. xml”) pre_filt = [1, 5, 40, 45] tr. It is quite easy to read the station XML files with read_inventory, and to remove the response using the remove_response, but I would like to get the PZ coeffecient from the stationXML because I want to plot the sensor response. 使用当前这些设定触发器报告了三个事件，提供每个（可能的）事件的开始时间和持续时间。此外还提供台站名和trace ID的列表，其按台站触发时间排序，这可以帮助我们对事件发生的位置有一个初始的粗略的想法。我们可以设定“details = True”来访问更多信息。 Sep 6, 2022 · The response can be simply removed with the corresponding ObsPy method of the RFStream object. Do anyone know how? Oct 19, 2023 · There is also a very very old test case comparing response removal with results from SAC, that was before the high level function remove_response was implemented, so it’s using underlying routines, but you can look at those details if you want. signal. join ("*. best, Kasper May 12, 2017 · I am trying to remove the instrument response from a seed file I obtained from Breq_fast. path. ms… We would like to show you a description here but the site won’t allow us. ejj rtmbtnp hdbxf fkuzssb awdqa vcvk rjfetfkr phv gcneze rutsg qftvdq mtowac lrh hxzxwptns toqit