International Registry of Seismograph Stations
maintained jointly by
International Seismological Centre & World Data Center for Seismology, Denver



Station details: ================
Code: BRW
Latitude: 71.30330
Longitude: -156.74800
Elevation:
Depth:
Name: Barrow
Region: Alaska,U.S.A.
Status:

Arrival picks statistics

Travel Time Analysis

On the top graph every dot represents the median residual for one month of data. The green line is the overall median; the orange line shows the standard deviation (smad) based on the median absolute deviation (mad), whilst the red line shows twice the standard deviation (2 * smad). The bottom graph shows the number of residuals for each month. The red columns show the number of residuals whose median (for that month) is outside two standard deviations from the overall median (2 * smad). Red dots indicate a possible clock error.

Travel time residuals



Station comments: ================= XC1-WWV 196501-197506 reopened 19830707 USTN opened 19830707 Data at the ISC for 28 years between 1965 and 2000.
International Seismological Centre
Pipers Lane, Thatcham, Berkshire
United Kingdom RG19 4NS
voice: +44 (0)1635 861022
fax: +44 (0)1635 872351

web site: http://www.isc.ac.uk/
e-mail: station_reg@isc.ac.uk