Global reference histograms of the IMS infrasound broadband detection lists

This data set builds upon the broadband detection lists of the International Monitoring System (IMS)’s infrasound stations. The infrasound data of these stations are regularly (re-)processed at the German National Data Centre at BGR (e.g., Ceranna et al., 2019; https://doi.org/10.1007/978-3-319-75140-5_ 13) using the Progressive Multi-Channel Correlation (PMCC) array processing method (Cansi, 1995; https://doi.org/10.1029/95GL00468 ). The latest reprocessing with 26 one-third octave spaced frequency bands in the IMS band of interest (0.01 to 4 Hz) included all 53 stations that were certified within the period 2003 to 2020. Based on the resulting broadband detection lists, this data set expands on former analyses of the coherent ambient noise. For each station with a data availability of at least one year (by the end of 2020), monthly reference histograms for the detection parameters back azimuth, apparent speed, and root-mean-squared amplitude are provided. The histograms provide a means to determine the deviation from nominal monthly behaviour and thus enable assessing the plausibility of detections and potential anomalies – without determining their cause – in the detected parameters. Overall, these quality metrics will be, among other applications, a useful supplement to the open-access IMS infrasound data products provided by Hupe et al., which are also available in BGR’s product centre. Further details of the reference histograms are described in the following publication by Kristoffersen et al.: "Updated global reference models of broadband coherent infrasound signals for atmospheric studies and civilian applications" ( https://doi.org/10.1029/2022EA00 2222).

INSPIRE

Identification

File identifier
88a4b405-6d4d-4b9e-a836-4c0f8971c827 XML
Hierarchy level
Dataset
Online resource
Resource identifier
code

bcaf7157-5fe7-f3a3-6391-91c5ea43d807
code

https://doi.org/10.25928/bgrseis_hist-ifsd

Metadata language
English
Spatial representation type
Text, table
Encoding
Format

netCDF
Version

n/a
Projection
 

Classification of data and services

Topic category
  • Geoscientific information
 

Classification of data and services

Coupled resource

Coupled resource
 
 

Classification of data and services

Coupled resource

Coupled resource
 
 

Keywords

Other keywords

Theme

  • infrasound

  • International Monitoring System

  • IMS

  • CTBT

  • noise

  • spectral models

  • atmosphere

  • geophysics

  • Infraschall

  • Kernwaffenteststopp

  • opendata
 
 

Geographic coverage

N
S
E
W
thumbnail


 

Temporal reference

Temporal extent
Temporal extent
Date (Publication)
2022-01-07
 

Quality and validity

Lineage

As the German National Data Centre for the CTBT, BGR archives waveform data of IMS infrasound arrays and produces infrasound broadband detection lists using the Progressive Multi-Channel Correlation (PMCC) algorithm. The histograms are derived from the detection lists as described in the paper by Kristoffersen et al. The data quality depends on the station performance and can be temporarily reduced, e.g. due to failures of the instruments or power outage. These histogram data products enable assessing the plausibility of detections in terms of back azimuth, velocity and amplitude and identifying anomalies in the detected parameters.
 

Conformity

Conformity
Conformity
 

Conformity

Conformity
Conformity
 

Restrictions on access and use

Access constraints
Es gelten keine Zugriffsbeschränkungen
Access constraints

Licence: CC BY 4.0; in the event of further use, both the data product source and the accompanying open-access publication (Kristoffersen et al., 2022; doi: 10.1029/2022EA002222) should be cited. Lizenz: CC BY 4.0; bei Weiterverwendung sind sowohl die Datenproduktquelle als auch die zugehörige open-access Publikation (Kristoffersen et al., 2022; doi: 10.1029/2022EA002222) zu zitieren.
Access constraints

{"id": "cc-by/4.0", "name": "Creative Commons Namensnennung - 4.0 International", "url": " https://creativecommons.org/licenses/by/4.0/ ", "quelle": "Infrasound_PMCC_reference © BGR, Hannover, 2021, doi: 10.25928/bgrseis_hist-ifsd"}

 

Responsible organization (s)

Contact for the resource
Organisation name

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Email

infrainfo@bgr.de

 

Responsible organization (s)

Contact for the resource
Organisation name

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Email

infrainfo@bgr.de

 

Metadata information

Contact for the metadata
Organisation name

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
Email

geodatenmanagement@bgr.de

Date stamp
2026-01-13
Metadata language
English
Character set
UTF8
 
 

SDS

Conformance class 1: invocable

Access Point URL
Endpoint URL
Technical specification
 

Conformance class 2: interoperable

Access constraints

Limitation
 

Use constraints

Limitation
 

Responsible custodian

Contact for the resource
 
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

CTBT IMS Infraschall International Monitoring System Kernwaffenteststopp atmosphere geophysics infrasound noise opendata spectral models

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