SeedPSD: spectrogram EN FR

This section of the SeedPSD webservice generates spectrogram images for a defined data source and time period.

URL builder

Network
Station
Location
Channel

Start
End

Colormap
Colormap min
Colormap max
Font size pt
Grid
Invert Y

Width px
Height px
Resolution dpi
Format
Transparency
Return code in case of missing data

Documentation

Examples

Usage

/spectrogram? (channel-options) (date-range-options) [image-options] [plot-options] [nodata=404]

where :
channel-options      ::  (network=<network>) (station=<station>) (location=<location>) (channel=<channel>)
date-range-options   ::  (starttime=<date>) (endtime=<date>)
image-options        ::  [dpi=<dots per inch>] [width=<pixels>] [height=<pixels>]
                         [format=<png|jpg|pdf>] [transparent=<true|false>]
plot-options         ::  [cmap=<>] [cmin=<>] [cmax=<>]
                         [fontsize=<>] [grid=<true|false>] [yinvert=<true|false>]

(..) mandatory
[..] optional

Parameters

Data source selection

Parameter Alias Example Description
network net FR Seismic network code. Accepts wildcards and lists.
station sta CIEL Station code. Accepts wildcards and lists.
location loc 00 Location code. Use loc=-- for empty location codes. Accepts wildcards and lists.
channel cha HHZ Channel code. Accepts wildcards and lists.
Wildcards and lists
  • ? : use the question mark as a wildcard to represent any single character.
  • * : use the asterisk as a wildcard to represent zero or more characters.
  • , : use the comma combine multiple items within a list. Wildcards may be included in the list..

For example, with channel codes: channel=EH?,BHZ

Time period selection

Parameter Alias Example Description
starttime start 2010-01-10T00:00:00 Selects power spectral densities from the specified time inclusive.
endtime end 2011-02-11T01:00:00 Selects power spectral densities before the specified time inclusive.
Date and time formats
Format Example Description
YYYY-MM-DDThh:mm:ss[.ssssss] 1997-01-31T12:04:32.123 a date and a time user-defined
YYYY-MM-DD 1997-01-31 a user-defined date but a time of 00:00:00 is assumed
currentutcday today at 00:00:00 
    
with :

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

Image configuration

Parameter Alias Default Description
width plot.width 900 Output image width (pixels). From 640 to 2000.
height plot.height 600 Height of the output image (pixels). From 480 to 2000.
dpi 100 Image resolution.
format png File output format: PNG, JPG, PDF.
nodata 204 Return code in case of missing data
transparent True Activate the transparency of the image background (valid only for PNG format).

Graphical options

Parameter Alias Default Description ObsPy
colormap cmap, plot.color.palette jet Name of the colormap Matplotlib to use cmap
colormap_min cmin None Minimum value of the colormap clim
colormap_max cmax None Maximum value of the colormap clim
font_size fontsize, plot.labelfont.size 10 Font size
grid True Displays the grid. grid
y_invert yinvert, plot.frequency.invert True Inverts the Y axis.