IRIS Knowledge Base

Category » Requests

There were 33 articles found in this category:

1. Is there a limit on the number of lines I can have in a BREQ_FAST request? Limit on the size of data?
   Q: Is there a limit on the number of lines I can have in a BREQ_FAST request? Limit on the size of data? A: There are a number of variables that will contribute to answering your question. Here are a general set of guidelines which should help you to generate BREQ_FAST-style requests that wi ...
2. Accessing IRIS Data with BREQ_FAST
   BREQ_FAST - Batch REQuests, FAST IRIS provides a few ways to access data using a BREQ_FAST Request: 1) BREQ_FAST Request via email Batch access to the IRIS DMC archive can be obtained by electronically mailing a specially formatted file to the IRIS DMC. When the IRIS DMC receives your request, p ...
3. How do I get data from the 2010 Maule earthquake?
   Q. How do I get portable station data from the 2010 Maule earthquake in Chile? A. Data from aftershock deployments are all available. The data from the French, British and US deployments are available through the IRIS DMC. They are available using the virtual network code _IMAD. Specific netwo ...
4. How do I get a list of stations?
   Q: I am wondering how I can get a list of all station names from all the networks with their latitude, longitude, elevation, etc, in a text file? A: IRIS SeismiQuery - Stations Inventories Query http://www.iris.edu/SeismiQuery/station.htm Click the checkboxes to select the items that you w ...
5. How do I know which request tool to use?
   A: There are many different tools for making requests because the user community is so diverse. As a result, we have made an attempt to encapsulate the user’s options diagrammatically. A good place to start is the Data Access Navigator, which provides a graphical reference to various dat ...
6. Waveform Request Tools
   Data Access Navigator Tool To assist new and experienced users alike in navigating IRIS DMC's waveform request tools, a navigation page has been provided on the web that helps to highlight the most important methods of data access. Please consult the Data Access Tool here. Below are spe ...
7. How do I interpret the SAC ASCII data files?
   Q: I have a few questions regarding the Mexicali Event files that I downloaded: 1. I attached a image showing all the files I received from the Seismogram tab -- I understand "BK.JRSC." refers to the server and the station name, but can you confirm: "BQ2, BQ3, etc." refer to the various channel ...
8. Cannot find origin time in SAC header
   Q: I requested some sac files using Wilber II. I noticed that the time following the "KZTIME" header in the sac file is different from the origin time of the event that I requested. There are no other headers indicating the origin time. May you please let me know why this is happening and how d ...
9. Can no longer get BHE or BHN channels
   Q: I am curious if there was a problem with the BHE and BHN components of station PAYG as part of the IU network? I requested to download data yesterday and the BHZ channel shows data through 2010.180 but the BHE and BHN channels only show data up to 2010.107. Also there appears to be two BHZ ...
10. Citation of data provided by IRIS
    Q: I downloaded some data from IRIS DMC and I would like to include this data on my website as I will be using it in an upcoming paper. I couldn't find any information on the data rights or ownership on IRIS web site. Is it okay to redistribute this data and how do I carry out the citations? ...
11. VASE connection problem
    Q: I have installed Vase, but I can not connect to any server and it goes into offline mode. A: One possibility is that you have a firewall in place that is preventing you from contacting certain port numbers. Can you verify whether you can connect to dmc.iris.washington.edu:6371 ? Telnet ...
12. What channels are available and what channels should I request?
    Q: What channels are available and what channels should I request? A: There are a number of tools you can use to get channels that are available for a given station. An easy path is to use MDA to discover which channels are operating for a station at a particular time. You can also check for d ...
13. I requested some data and got a file back that I can't read. What do I do with this file?
    Q: I requested some data and got a file back that I can't read. What do I do with this file? A: It is first necessary to identify what kind of file this is. Look for an extension or suffix Many times, a file will have a suffix on it, like .txt, to indicate the type of file. IRIS will typically ...
14. Why are some data restricted from open access?
    Data from PASSCAL (and some other temporary deployments) are subject to a two-year moratorium, allowing the Principal Investigators (PI's) who carried out the scientific study the opportunity to report and publish results with exclusive access to their data. As a result, access is allowed only ...
15. How can I request miniSEED data?
    Q: What is MiniSEED data? A: MiniSEED data is a stripped down version of SEED data which only contains waveform data. There is no station and channel metadata included. Getting a MiniSEED File: Submit a BREQ_FAST style request to miniseed@iris.washington.edu from your mail client. for formatti ...
16. SOD gives me a 'config file changed' error
    Q: I have been trying to run my xml file to extract data from IRIS_DataCenter and whenever I run SOD by typing sod -f name.xml this error message shows up: Your config file has changed since your last run. It may not be advisable to continue this SOD run. All hope abandon, ye who enter in! Do ...
17. How to get a dataless SEED for stations and channels in a region
    Q: How can I get a dataless SEED for all stations and channels within a geographic bounding box? A: SeismiQuery The SeismiQuery page at http://www.iris.edu/SeismiQuery/breq_fast.htm can do this. The user inputs query parameters into a form to delimit a BREQ_FAST request. The user may input que ...
18. NetDC request
    NetDC- is a data request system that allows a user to request seismological information from multiple data centers through a single email mechanism. Information is delivered to the user through email and/or FTP in a uniform binary or text format. NetDC Request Form NetDC User Manual Which ema ...
19. How to I find the coordinates for stations?
    Q: I have made a request about the data of South Sumatra earthquake on 25th July 2004, where the data consists a part of XE stations. I have looked up this Network code in fdsn.org, but I can't find it. Would you send me the coordinates of stations in XE NETWORK? A: The easiest way for you to ...
20. How do I get data from stations near an event?
    Q: I only want data from stations that are a certain distance from an event. How do I do that? A: JWEED Use JWEED software to select stations within a defined area. JWEED is a Java tool that allows you to set very specific parameters for requesting event-related data. You can interactively e ...