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Webservice evalresp

This service provides access to the sensor instrumental responses of the RESIF seismic network.

Query usage

/query? (channel-options) [time-option] [frequency-options] [units-options] [plots-options] (output-options)


channel-options      ::  (net=<network> & sta=<station> & loc=<location> & cha=<channel>)
time-option          ::  (time=<date>)
frequency-options    ::  [minfreq=<freq-Hz>] [maxfreq=<freq-Hz>] [nfreq=<number-of-frequencies>] [spacing=<lin|log>]
units-options        ::  [units=<def|dis|vel|acc>]
plot-options         ::  [width=<pixels>] [height=<pixels>] [annotate=<true|false>]
output-options       ::  (format=<fap|cs|plot|plot-amp|plot-phase>)

(..) required
[..] optional

Sample queries

Detailed descriptions of each query parameter

Parameter Example Discussion
net[work] FR Seismic network name.
sta[tion] CIEL Station name.
loc[ation] 00 Location code. Use loc=-- for empty location codes.
cha[nnel] HHZ Channel Code.
time 2017-01-01T00:00:00 Evaluate the response at the given time. If not specified, the current time is used.
minfreq 0.001 The minimum frequency (Hz) at which response will be evaluated.
maxfreq 100 The maximum frequency (Hz) at which response will be evaluated. Defaults to the channel sample rate or the frequency of sensitivity, whichever is larger.
nfreq 500 Number frequencies at which response will be evaluated. Must be a positive integer no greater than 10000.
units acc Output unit. Must be: def (unit in response metadata), dis (displacement), vel (velocity), acc (acceleration).
spacing linear Scale frequency. Must be: lin(ear) or log(arithmic).
width 500 The width of the generated plot. Defaults to 800.
height 400 The height of the generated plot. Defaults to 600.
annotate false Displays the sensitivity, the frequency and sensitivity frequency.
degrees false Displays the phase in degrees or in radians.
format plot Output format. Must be: fap (three column ASCII: frequency, amplitude, phase), cs (three column ASCII: frequency, real, imaginary), plot (amplitude and phase plot), plot-amp (amplitude only plot), plot-phase (phase only plot).

Station code details

The four parameters (network, station, location, channel) determine channels of interest.

Date and time formats

YYYY-MM-DDThh:mm:ss[.ssssss] ex. 1997-01-31T12:04:32.123
YYYY-MM-DD ex. 1997-01-31 (a time of 00:00:00 is assumed)


YYYY    :: four-digit year
MM      :: two-digit month (01=January, etc.)
DD      :: two-digit day (01 through 31)
T       :: date-time separator
hh      :: two-digit hour (00 through 23)
mm      :: two-digit number of minutes (00 through 59)
ss      :: two-digit number of seconds (00 through 59)
ssssss  :: one to six-digit number of microseconds (0 through 999999)