jenni
All sac users:
I am a beginner here, so I would like to ask some questions, I hope some
advanced user of sac can help me with my doubts about transfer command.
1. I have a seismogram waveform which is velocity record from velocity
transducer. I have the response instrument read with rdseed and the RESP.*
is the velocity response, but the pole zero is displacement response. My
question: When I apply trans from polezero ..., using that polezero obtained
from rdseed, do I get the velocity ground motion (m/s or nm/s, etc. ) or do
I get displacement ground motion?
2. After the deconvolution with the transfer command, can I do the
convolution to apply another instrument response of the instrument types
that are not in the list in sac reference manual? If yes, how can I do it?
If not, would anyone please tell me the source where I can get the frequency
response and polezero of the instrument types in the sac manual since I am
trying to compare records that could be obtained from different instruments
with different response.
Thanks,
J.
I am a beginner here, so I would like to ask some questions, I hope some
advanced user of sac can help me with my doubts about transfer command.
1. I have a seismogram waveform which is velocity record from velocity
transducer. I have the response instrument read with rdseed and the RESP.*
is the velocity response, but the pole zero is displacement response. My
question: When I apply trans from polezero ..., using that polezero obtained
from rdseed, do I get the velocity ground motion (m/s or nm/s, etc. ) or do
I get displacement ground motion?
2. After the deconvolution with the transfer command, can I do the
convolution to apply another instrument response of the instrument types
that are not in the list in sac reference manual? If yes, how can I do it?
If not, would anyone please tell me the source where I can get the frequency
response and polezero of the instrument types in the sac manual since I am
trying to compare records that could be obtained from different instruments
with different response.
Thanks,
J.
-
Hello
1. I have a seismogram waveform which is velocity record from velocity transducer. I have the response instrument read with rdseed and the RESP.* is the velocity response, but the pole zero is displacement response. My question: When I apply trans from polezero ..., using that polezero obtained from rdseed, do I get the velocity ground motion (m/s or nm/s, etc. ) or do I get displacement ground motion?
your input velocity PZ file must have an additional ZERO for SAC. SAC integrates the data with that ZERO. if you say “to none” your output will be disp. (m) ; if you say “to vel” you will get velocity (m/s)
2. After the deconvolution with the transfer command, can I do the convolution to apply another instrument response of the instrument types that are not in the list in sac reference manual? If yes, how can I do it? If not, would anyone please tell me the source where I can get the frequency response and polezero of the instrument types in the sac manual since I am trying to compare records that could be obtained from different instruments with different response.
you need a PZ file of output instruments. you can say “from polezero to new-polezero”.
best regards
o.
Dr. Onur TAN
---------------------------------------------- 40.7866N 29.4500E ---------
TÜBİTAK Marmara Araştırma Merkezi, Yer ve Deniz Bilimleri Enstitüsü
TUBITAK Marmara Research Center, Earth and Marine Sciences Institute
Gebze - Kocaeli - TURKEY
________________________________
Bu e-posta mesajı ve onunla iletilen tüm ekler gönderildiği kişi ya da kuruma özel olup, gizli ve özel bilgiler içerebileceği gibi gizlilik yükümlülüğü de taşıyor olabilir. Bu mesajda ve ekindeki dosyalarda bulunan tüm fikir ve görüşler sadece adres sahip(ler)ine ait olup, TÜBİTAK MAM bu e-posta içeriğindeki bilgilerin kullanılması nedeniyle hiç kimseye karşı sorumlu tutulamaz Mesajın yetkili alıcısı veya alıcısına iletmekten sorumlu kişi değilseniz, mesaj içeriğini ya da eklerini kullanmayınız, kopyalamayınız, yaymayınız, başka kişilere yönlendirmeyiniz ve mesajı gönderen kişiyi derhal uyararak bu mesajı siliniz. Kurumumuz size, mesajın ve bilgilerinin değişikliğe uğramaması, bütünlüğünün ve gizliliğin korunması konusunda garanti vermemekte olup, e-posta içeriğine yetkisiz olarak yapılan müdahale, virüs içermesi ve/veya bilgisayar sisteminize verebileceği herhangi bir zarardan da sorumlu değildir.
This e-mail message, including any attachments, is intended only for the use of the individual or entity to whom it is addressed and may contain confidential, private information as well as the exemption from disclosure. All ideas and opinions in this message and attached files can only belong to the addressee(s) and TUBITAK MRC shall have no liability to any person with regard to the use of the information contained in this message If you are not the intended addressee(s) or responsible person to inform the addressee(s), you are hereby notified that; any use, dissemination, distribution, or copying of this message and attached files is strictly prohibited. Delete the message and notify the sender immediately. TUBITAK MRC do not warrant for the accuracy, completeness of the contents of this email and/or the preservation of confidentiality and shall not be liable for the unauthorized changes made to this message, viruses and/or any damages caused in anyway to your computer system
-
All sac user:
@Thank you for the explanation, Dr. Onur.
But I still have problem regarding my second question. I have my polezero
file, but when I did as you suggest: from polezero to *.pz (e.g.polezero
file obtained from
http://www.passcal.nmt.edu/content/instrumentation/sensors/sensor-comparison-chart),
I got the error message:
ERROR interpreting command: trans from polezero s' to '
Unkown instrument type:
Could anyone please help me to point out the mistake I made and tell me the
right command to apply to get the convolution done?
Thanks,
J.
On Thu, Jun 9, 2011 at 10:42 AM, Onur Tan <Onur.Tan<at>mam.gov.tr> wrote:
Hello
1. I have a seismogram waveform which is velocity record from velocity
transducer. I have the response instrument read with rdseed and the RESP.*
is the velocity response, but the pole zero is displacement response. My
question: When I apply trans from polezero ..., using that polezero obtained
from rdseed, do I get the velocity ground motion (m/s or nm/s, etc. ) or do
I get displacement ground motion?
your input velocity PZ file must have an additional ZERO for SAC. SAC
integrates the data with that ZERO. if you say "to none" your output will be
disp. (m) ; if you say "to vel" you will get velocity (m/s)
2. After the deconvolution with the transfer command, can I do the
convolution to apply another instrument response of the instrument types
that are not in the list in sac reference manual? If yes, how can I do it?
If not, would anyone please tell me the source where I can get the frequency
response and polezero of the instrument types in the sac manual since I am
trying to compare records that could be obtained from different instruments
with different response.
you need a PZ file of output instruments. you can say "from polezero
to new-polezero".
best regards
o.
Dr. Onur TAN
---------------------------------------------- 40.7866N 29.4500E
---------
TÜBİTAK Marmara Araştırma Merkezi, Yer ve Deniz Bilimleri Enstitüsü
TUBITAK Marmara Research Center, Earth and Marine Sciences Institute
Gebze - Kocaeli - TURKEY
________________________________
Bu e-posta mesajı ve onunla iletilen tüm ekler gönderildiği kişi ya da
kuruma özel olup, gizli ve özel bilgiler içerebileceği gibi gizlilik
yükümlülüğü de taşıyor olabilir. Bu mesajda ve ekindeki dosyalarda bulunan
tüm fikir ve görüşler sadece adres sahip(ler)ine ait olup, TÜBİTAK MAM bu
e-posta içeriğindeki bilgilerin kullanılması nedeniyle hiç kimseye karşı
sorumlu tutulamaz Mesajın yetkili alıcısı veya alıcısına iletmekten sorumlu
kişi değilseniz, mesaj içeriğini ya da eklerini kullanmayınız,
kopyalamayınız, yaymayınız, başka kişilere yönlendirmeyiniz ve mesajı
gönderen kişiyi derhal uyararak bu mesajı siliniz. Kurumumuz size, mesajın
ve bilgilerinin değişikliğe uğramaması, bütünlüğünün ve gizliliğin korunması
konusunda garanti vermemekte olup, e-posta içeriğine yetkisiz olarak yapılan
müdahale, virüs içermesi ve/veya bilgisayar sisteminize verebileceği
herhangi bir zarardan da sorumlu değildir.
This e-mail message, including any attachments, is intended only for the
use of the individual or entity to whom it is addressed and may contain
confidential, private information as well as the exemption from disclosure.
All ideas and opinions in this message and attached files can only belong to
the addressee(s) and TUBITAK MRC shall have no liability to any person with
regard to the use of the information contained in this message If you are
not the intended addressee(s) or responsible person to inform the
addressee(s), you are hereby notified that; any use, dissemination,
distribution, or copying of this message and attached files is strictly
prohibited. Delete the message and notify the sender immediately. TUBITAK
MRC do not warrant for the accuracy, completeness of the contents of this
email and/or the preservation of confidentiality and shall not be liable for
the unauthorized changes made to this message, viruses and/or any damages
caused in anyway to your computer system
_______________________________________________
sac-help mailing list
sac-help<at>iris.washington.edu
http://www.iris.washington.edu/mailman/listinfo/sac-help
-
for your first question, you might consider using the evalresp option in
transfer. Also, polezero files written using recent versions of rdseed
have comment lines that give details about things like the input and
output units. (Do note that rdseed uses m and SAC header says nm.
See the transfer help message for a discussion.)
For your second question, it would help if you copied/pasted the command
sequence into an e-mail message.
On Thu, 9 Jun 2011, jenni wang wrote:
All sac user:
@Thank you for the explanation, Dr. Onur.
But I still have problem regarding my second question. I have my polezero
file, but when I did as you suggest: from polezero to *.pz (e.g.polezero
file obtained fromhttp://www.passcal.nmt.edu/content/instrumentation/sensors/sensor-compariso
n-chart), I got the error message:
ERROR interpreting command: trans from polezero s' to '
Unkown instrument type:
Could anyone please help me to point out the mistake I made and tell me the
right command to apply to get the convolution done?
Thanks,
J.
On Thu, Jun 9, 2011 at 10:42 AM, Onur Tan <Onur.Tan<at>mam.gov.tr> wrote:
Hello
1. I have a seismogram waveform which is velocity record from
velocity transducer. I have the response instrument read with
rdseed and the RESP.* is the velocity response, but the pole
zero is displacement response. My question: When I apply trans
from polezero ..., using that polezero obtained from rdseed, do
I get the velocity ground motion (m/s or nm/s, etc. ) or do I
get displacement ground motion?
your input velocity PZ file must have an additional ZERO for SAC. SAC
integrates the data with that ZERO. if you say “to none” your output
will be disp. (m) ; if you say “to vel” you will get velocity (m/s)
2. After the deconvolution with the transfer command, can I do the
convolution to apply another instrument response of the instrument
types that are not in the list in sac reference manual? If yes, how
can I do it? If not, would anyone please tell me the source where I
can get the frequency response and polezero of the instrument types in
the sac manual since I am trying to compare records that could be
obtained from different instruments with different response.
you need a PZ file of output instruments. you can say “from
polezero to new-polezero”.
best regards
o.
-
@Thank you for the info, Arthur. Is there any difference by applying
polezero or evalresp?
I got error with this command:
trans from polezero s %pzfile to polezero s 1s.pz
Could anyone please help to find out the mistake I make?
Thanks,
J.
On Thu, Jun 9, 2011 at 12:44 PM, Arthur Snoke <snoke<at>vt.edu> wrote:
for your first question, you might consider using the evalresp option in
transfer. Also, polezero files written using recent versions of rdseed have
comment lines that give details about things like the input and output
units. (Do note that rdseed uses m and SAC header says nm. See the transfer
help message for a discussion.)
For your second question, it would help if you copied/pasted the command
sequence into an e-mail message.
On Thu, 9 Jun 2011, jenni wang wrote:
All sac user:
@Thank you for the explanation, Dr. Onur.
But I still have problem regarding my second question. I have my polezero
file, but when I did as you suggest: from polezero to *.pz (e.g.polezero
file obtained fromhttp://
www.passcal.nmt.edu/content/instrumentation/sensors/sensor-compariso
n-chart), I got the error message:
ERROR interpreting command: trans from polezero s' to '
Unkown instrument type:
Could anyone please help me to point out the mistake I made and tell me
the
right command to apply to get the convolution done?
Thanks,
J.
On Thu, Jun 9, 2011 at 10:42 AM, Onur Tan <Onur.Tan<at>mam.gov.tr> wrote:
Hello
1. I have a seismogram waveform which is velocity record from
velocity transducer. I have the response instrument read with
rdseed and the RESP.* is the velocity response, but the pole
zero is displacement response. My question: When I apply trans
from polezero ..., using that polezero obtained from rdseed, do
I get the velocity ground motion (m/s or nm/s, etc. ) or do I
get displacement ground motion?
your input velocity PZ file must have an additional ZERO for SAC. SAC
integrates the data with that ZERO. if you say “to none” your output
will be disp. (m) ; if you say “to vel” you will get velocity (m/s)
2. After the deconvolution with the transfer command, can I do the
convolution to apply another instrument response of the instrument
types that are not in the list in sac reference manual? If yes, how
can I do it? If not, would anyone please tell me the source where I
can get the frequency response and polezero of the instrument types in
the sac manual since I am trying to compare records that could be
obtained from different instruments with different response.
you need a PZ file of output instruments. you can say “from
polezero to new-polezero”.
best regards
o.
-
Hi Jenni,
yes, there is different, evalresp use the Response file that
is the "complete" response of the system, instead the polezero
only include the poles and zeros of sensor and constant can
include the amplitude factor of the digitizer.
For debugging the transfer command you can start using the half of
command,
sac> trans from polezero s polezero_file to none
and after add the second part, i suspect of use the second part,
verify the path of the 1s.pz file,
HTH,
Milton
**********************************
Milton P. PLASENCIA LINARES
Dipartimento Centro di Ricerche Sismologiche
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS
Borgo Grotta Gigante 42/C
(34010) Sgonico - TRIESTE - ITALIA
Tel: +39-040-2140136
Fax: +39-040-327307
E-mail: mplasencia<at>ogs.trieste.it
ASAIN (Antarctic Seismographic Argentinean Italian Network)
*********************************
Quoting "jenni wang" <u2injesus<at>gmail.com>:
@Thank you for the info, Arthur. Is there any difference by applying
----------------------------------------------------------------
polezero or evalresp?
I got error with this command:
trans from polezero s %pzfile to polezero s 1s.pz
Could anyone please help to find out the mistake I make?
Thanks,
J.
On Thu, Jun 9, 2011 at 12:44 PM, Arthur Snoke <snoke<at>vt.edu> wrote:
for your first question, you might consider using the evalresp option in
transfer. Also, polezero files written using recent versions of rdseed have
comment lines that give details about things like the input and output
units. (Do note that rdseed uses m and SAC header says nm. See the transfer
help message for a discussion.)
For your second question, it would help if you copied/pasted the command
sequence into an e-mail message.
On Thu, 9 Jun 2011, jenni wang wrote:
All sac user:
@Thank you for the explanation, Dr. Onur.
But I still have problem regarding my second question. I have my polezero
file, but when I did as you suggest: from polezero to *.pz (e.g.polezero
file obtained fromhttp://
www.passcal.nmt.edu/content/instrumentation/sensors/sensor-compariso
n-chart), I got the error message:
ERROR interpreting command: trans from polezero s' to '
Unkown instrument type:
Could anyone please help me to point out the mistake I made and tell me
the
right command to apply to get the convolution done?
Thanks,
J.
On Thu, Jun 9, 2011 at 10:42 AM, Onur Tan <Onur.Tan<at>mam.gov.tr> wrote:
Hello
1. I have a seismogram waveform which is velocity record from
velocity transducer. I have the response instrument read with
rdseed and the RESP.* is the velocity response, but the pole
zero is displacement response. My question: When I apply trans
from polezero ..., using that polezero obtained from rdseed, do
I get the velocity ground motion (m/s or nm/s, etc. ) or do I
get displacement ground motion?
your input velocity PZ file must have an additional ZERO for SAC. SAC
integrates the data with that ZERO. if you say ?to none? your output
will be disp. (m) ; if you say ?to vel? you will get velocity (m/s)
2. After the deconvolution with the transfer command, can I do the
convolution to apply another instrument response of the instrument
types that are not in the list in sac reference manual? If yes, how
can I do it? If not, would anyone please tell me the source where I
can get the frequency response and polezero of the instrument types in
the sac manual since I am trying to compare records that could be
obtained from different instruments with different response.
you need a PZ file of output instruments. you can say ?from
polezero to new-polezero?.
best regards
o.
This message was sent using IMP, the Internet Messaging Program.
-
-
-
-
Onur Tan
Arthur Snoke
Milton Plasencia
