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Journal Article
Published: 01 April 2012
Bulletin of the Seismological Society of America (2012) 102 (2): 836-841.
... are available as an electronic supplement to this paper. These scripts are self‐documented in detail and can be used to analyze the long‐period and midband poles and zeros of any commonly deployed GSN seismometers (CMT‐3T, CMG‐3TB, Trillium 240, STS‐2, STS‐1, and KS‐54000). We also include MATLAB scripts...
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Journal Article
Published: 01 November 2005
Seismological Research Letters (2005) 76 (6): 678-683.
... of sensor sensitivities reported for the IRIS Global Seismic Network (GSN). A goal of the GSN is to publish instrument responses to an accuracy of 1% in amplitude and 1° in phase. This earthquake excited long-period free oscillations such that modes with low decay rates could be observed above ambient noise...
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Journal Article
Published: 01 May 1998
Seismological Research Letters (1998) 69 (3): 206-215.
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<b>GSN</b> and <b>GSN</b>* values calculated from modified slake durability tests.
Published: 01 August 2017
Table 5. GSN and GSN* values calculated from modified slake durability tests.
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Values of <b>GSN</b>, <b>GSN</b>*, and ratios of these two parameters to the Scour number...
Published: 01 August 2017
Table 8. Values of GSN, GSN*, and ratios of these two parameters to the Scour number.
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Regressions of <b>GSN</b> and <b>GSN</b>* on scour number. Negative slopes have no physic...
Published: 01 August 2017
Figure 12. Regressions of GSN and GSN* on scour number. Negative slopes have no physical meaning. Most data points plot above line with Slope = 1 indicating a non-conservative result, i.e., more scour observed than would be predicated.
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Median <b>GSN</b>* according to mode of scour (<b>GSN</b>* is in units of feet per foot‐p...
Published: 01 August 2017
Figure 13. Median GSN* according to mode of scour (GSN* is in units of feet per foot‐pounds per second per square feet).
Journal Article
Published: 16 December 2015
Seismological Research Letters (2016) 87 (1): 81-89.
...A. T. Ringler; J. M. Steim; T. van Zandt; C. R. Hutt; D. C. Wilson; T. L. Storm ABSTRACT The Streckeisen STS‐1 has been the primary vault‐type seismometer used in the over‐150‐station Global Seismographic Network (GSN). This sensor has long been known for its outstanding vertical, very long‐period...
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Map showing the five Global Seismographic Network (<b>GSN</b>) stations (blue cros...
Published: 15 August 2018
Figure 1. Map showing the five Global Seismographic Network (GSN) stations (blue crosses) closest to the North Korean test site (red circle) that were used for calculation of M s . Blue lines are great circle paths.
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This graph shows orientation_check metric azimuth errors for <b>GSN</b> broadband ...
Published: 14 February 2018
Figure 8. This graph shows orientation_check metric azimuth errors for GSN broadband instruments having at least one time span during their history in which orientation_check errors were 20° or more. The start and end times of the plotted bars are metadata epoch extents; data
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Instrument orientation consistency check at <b>GSN</b> stations ESK (Eskdalemuir, ...
Published: 17 January 2017
Figure 4. Instrument orientation consistency check at GSN stations ESK (Eskdalemuir, Scotland) and HRV (Harvard, Massachusetts). Results are shown when obtained using the full dataset for six years and several subsets thereof. The benchmark results for the full six‐year dataset are 3.34
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A comparison of individual measurements for <b>GSN</b> station SACV location 00 us...
Published: 17 January 2017
Figure 5. A comparison of individual measurements for GSN station SACV location 00 using the Laske et al. (1994) method and DLOPy. Results are shown for two frequencies, 15 and 20 mHz, for both R 1 and R 2 . Only a subset of high‐quality data is considered; measurements
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Station distribution of (a) the Global Seismographic Network (<b>GSN</b>; circles)...
Published: 03 January 2017
Figure 2. Station distribution of (a) the Global Seismographic Network (GSN; circles) and (d) the Alaska (AK; inverted triangles), European (EU; triangles), and Australian (AU; squares) networks. The P wavetrains from the 2014 Yutian earthquake, aligned with the first P arrivals (dashed line
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Azimuth‐inversion results for the primary sensor at  <b>GSN</b>  station ANMO (KS‐...
Published: 01 November 2013
Figure 3. Azimuth‐inversion results for the primary sensor at GSN station ANMO (KS‐54000) relative to the secondary sensor at ANMO (CMG‐3TB) for 21 March 2011. Errors in the best‐fit azimuth are displayed in terms of a 99% confidence interval assuming a Normal distribution.
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Slip models obtained from the inversion of the  <b>GSN</b>  teleseismic  P  waves ...
Published: 01 April 2013
Figure 1. Slip models obtained from the inversion of the GSN teleseismic P waves for (a) the September 2010 New Zealand and (b) the April 2010 Baja California earthquakes using the fault parameters given in Table  1 . View is from a direction perpendicular to the fault with distance from
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▴ The 132 stations of the Global Seismographic Network (<b>GSN</b>), consisting of...
Published: 01 July 2011
Figure 1. ▴ The 132 stations of the Global Seismographic Network (GSN), consisting of 91 IU and IC stations operated by the USGS (circles) and 41 II stations operated by the University of California, San Diego IDA group (stars). This map does not include the Caribbean Network (network code CU
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▴ Scaling factors observed at <b>GSN</b> station KIP by the WQC at LDEO for body w...
Published: 01 July 2011
Figure 2. ▴ Scaling factors observed at GSN station KIP by the WQC at LDEO for body waves in the 50–75 s period range and mantle waves in the 200–250 s period range. These plots represent the scaling factors needed to optimally fit synthetic long-period seismograms used in LDEO's centroid moment
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▴ Insulating box around FBE at <b>GSN</b> station HRV. The heat dissipated by the ...
Published: 01 July 2011
Figure 11. ▴ Insulating box around FBE at GSN station HRV. The heat dissipated by the FBE (about 3.5 watts), along with this extra insulation, helps keep the FBE warmer, thus reducing relative humidity in and around the FBE and its connectors.
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▴ <b>GSN</b> map of stations used in the study in our study. Red dots are stations...
Published: 01 July 2010
Figure 1. ▴ GSN map of stations used in the study in our study. Red dots are stations at which both the two-sensor and one-sensor analysis techniques were applied. Green dots correspond to stations where the one-sensor analysis technique was applied. Our list of one-sensor stations includes all
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▴ Displacement seismograms (BHZ channel) at <b>GSN</b> station MAJO ( r ≈  52°) in...
Published: 01 January 2010
Figure 4. ▴ Displacement seismograms (BHZ channel) at GSN station MAJO ( r ≈ 52°) in Japan for A) 2006 Java earthquake and B) 2002 Sumatra earthquake and C) comparison of their Fourier spectra.