Discovery and analysis of time delay sources in the USGS personal computer data collection platform (PCDCP) system
Scientific Investigations Report
2014-5045
Links
- More information: USGS Index Page
- Document: Report
- Download citation as: RIS | Dublin Core
Abstract
Intermagnet is an international oversight group which exists to establish a global network for geomagnetic observatories. This group establishes data standards and standard operating procedures for members and prospective members. Intermagnet has proposed a new One-Second Data Standard, for that emerging geomagnetic product. The standard specifies that all data collected must have a time stamp accuracy of ±10 milliseconds of the top-of-the-second Coordinated Universal Time. Therefore, the U.S. Geological Survey Geomagnetism Program has designed and executed several tests on its current data collection system, the Personal Computer Data Collection Platform. Tests are designed to measure the time shifts introduced by individual components within the data collection system, as well as to measure the time shift introduced by the entire Personal Computer Data Collection Platform. Additional testing designed for Intermagnet will be used to validate further such measurements. Current results of the measurements showed a 5.0–19.9 millisecond lag for the vertical channel (Z) of the Personal Computer Data Collection Platform and a 13.0–25.8 millisecond lag for horizontal channels (H and D) of the collection system. These measurements represent a dynamically changing delay introduced within the U.S. Geological Survey Personal Computer Data Collection Platform.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Discovery and analysis of time delay sources in the USGS personal computer data collection platform (PCDCP) system |
| Series title | Scientific Investigations Report |
| Series number | 2014-5045 |
| DOI | 10.3133/sir20145045 |
| Year Published | 2014 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Geologic Hazards Science Center |
| Description | vi, 24 p. |
| Online Only (Y/N) | Y |
| Google Analytic Metrics | Metrics page |