[Shake-dev] db2xml

Wed Mar 1 21:29:19 UTC 2017

Thanks Pete.  I will have to look more closely at the implementation in 
the code.  I am definitely getting errors related to orientation for 
stations with the 1 and 2 designations.  I do not get similar errors for 
the E and N designations.
Kris

shake.log.60171887:2016-11-25 08:53:17 : db2xml: error: unable to 
detemine orientations of US.AHID (BH1 BH2); skipping station
shake.log.60171887:2016-11-25 08:53:17 : db2xml: error: unable to 
detemine orientations of US.DUG (BH1 BH2); skipping station
shake.log.60171887:2016-11-25 08:53:17 : db2xml: error: unable to 
detemine orientations of US.HWUT (BH1 BH2); skipping station
shake.log.60171887:2016-11-25 09:14:51 : db2xml: error: unable to 
detemine orientations of US.AHID (BH1 BH2); skipping station
shake.log.60171887:2016-11-25 09:14:51 : db2xml: error: unable to 
detemine orientations of US.DUG (BH1 BH2); skipping station
shake.log.60171887:2016-11-25 09:14:51 : db2xml: error: unable to 
detemine orientations of US.HWUT (BH1 BH2); skipping station
shake.log.60171887:2016-11-28 09:47:33 : db2xml: error: unable to 
detemine orientations of US.AHID (BH1 BH2); skipping station
shake.log.60171887:2016-11-28 09:47:33 : db2xml: error: unable to 
detemine orientations of US.DUG (BH1 BH2); skipping station
shake.log.60171887:2016-11-28 09:47:33 : db2xml: error: unable to 
detemine orientations of US.HWUT (BH1 BH2); skipping station
shake.log.60173377:2016-12-07 08:23:22 : db2xml: error: unable to 
detemine orientations of IW.IMW (BH2); skipping station
shake.log.60173377:2016-12-07 08:23:22 : db2xml: error: unable to 
detemine orientations of US.AHID (BH1 BH2); skipping station
shake.log.60173377:2016-12-07 08:23:22 : db2xml: error: unable to 
detemine orientations of US.HWUT (BH1 BH2); skipping station
shake.log.60173377:2016-12-07 08:23:23 : db2xml: error: unable to 
detemine orientations of IW.IMW (BH2); skipping station
shake.log.60173377:2016-12-07 08:23:23 : db2xml: error: unable to 
detemine orientations of US.AHID (BH1 BH2); skipping station
shake.log.60173377:2016-12-07 08:23:23 : db2xml: error: unable to 
detemine orientations of US.HWUT (BH1 BH2); skipping station
shake.log.60173377:2016-12-07 08:23:23 : db2xml: error: unable to 
detemine orientations of IW.IMW (BH2); skipping station
shake.log.60173377:2016-12-07 08:23:23 : db2xml: error: unable to 
detemine orientations of US.AHID (BH1 BH2); skipping station
shake.log.60173377:2016-12-07 08:23:23 : db2xml: error: unable to 
detemine orientations of US.HWUT (BH1 BH2); skipping station
shake.log.60187322:2017-03-01 01:44:02 : db2xml: error: unable to 
detemine orientations of US.DUG (BH1); skipping station
shake.log.60187322:2017-03-01 01:44:02 : db2xml: error: unable to 
detemine orientations of US.WUAZ (BH1 BH2); skipping station
shake.log.60187322:2017-03-01 01:51:20 : db2xml: error: unable to 
detemine orientations of US.DUG (BH1); skipping station
shake.log.60187322:2017-03-01 01:51:20 : db2xml: error: unable to 
detemine orientations of US.WUAZ (BH1 BH2); skipping station
shake.log.60187322:2017-03-01 08:38:04 : db2xml: error: unable to 
detemine orientations of US.DUG (BH1); skipping station
shake.log.60187322:2017-03-01 08:38:04 : db2xml: error: unable to 
detemine orientations of US.WUAZ (BH1 BH2); skipping station

On 3/1/17 2:17 PM, Peter Lombard wrote:
> Kris,
>
> db2xml does allow horizontal channels with direction codes other than E and
> N. See this comment found in db2xml:
>
> # For the given net.sta and for each location code,
> # try to form groups of channels like HNE, HNN, HNZ, based on the
> # first two letters of the channel name.
> # Ideally we expect there to be three channels in a group, but
> # there might be more or less. If there are more, we declare an error
> # and skip the station; could use some ideas on how to do this better.
> # ShakeMap assumes channels are either vertical or horizontal; it does
> # not care about the azimuth of horizontal channels but assumes that pairs
> # of horizontal channels are orthogonal.
> # The only way this program and ShakeMap can identify vertical channels
> # is by the SEED orientation code (third letter of channel code) being 'Z'.
> # Likewise, orientation codes of E and N definitely identify channels as
> # being horizontal. Channels with other orientation codes could point in
> # any direction.
> # Therefore we insist that channel groups consist of three or fewer channels
> # ending in E, N or Z; or 1 to 3 channels one of which must end in Z.
>
>
> Pete
>
>
> Kris Pankow writes:
>   > Just an FYI for those running AQMS with ShakeMap, in scanning through a
>   > log file today I learned that db2xml ( $Id: db2xml 1472 2015-09-14
>   > 22:45:19Z cbworden $        USGS) is hard coded to only accept E N Z for
>   > seismometer orientation.  However, there are networks such as US where
>   > the horizontal channels are designated 1 and 2.  I am running version
>   > 3.5 r 1543.  This is not a huge issue for our network, but as I started
>   > an FYI.
>   >
>   > Kris
>   >
>   >
>   > --
>   > Kristine Pankow, Ph.D.
>   > Research Professor of Geophysics &
>   > Assoc. Director of Seismograph Stations
>   > University of Utah
>   > 115 South 1460 East
>   > Salt Lake City, Utah 84112
>   >
>   > pankow <at> seis.utah.edu (email)
>   > 801-585-6484 (voice)
>   > 801-585-5585 (fax)
>   >
>   > _______________________________________________
>   > Shake-dev mailing list
>   > Shake-dev at geohazards.usgs.gov
>   > https://geohazards.usgs.gov/mailman/listinfo/shake-dev
>
>

-- 
Kristine Pankow, Ph.D.
Research Professor of Geophysics &
Assoc. Director of Seismograph Stations
University of Utah
115 South 1460 East
Salt Lake City, Utah 84112

pankow <at> seis.utah.edu (email)
801-585-6484 (voice)
801-585-5585 (fax)