PPSD: Spectrogram FR EN

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

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Data source

Network

Station

Location

Channel

Time period

Start

End

Plot configuration

Colormap Accent Accent_r Blues Blues_r BrBG BrBG_r BuGn BuGn_r BuPu BuPu_r CMRmap CMRmap_r Dark2 Dark2_r GnBu GnBu_r Grays Greens Greens_r Greys Greys_r OrRd OrRd_r Oranges Oranges_r PRGn PRGn_r Paired Paired_r Pastel1 Pastel1_r Pastel2 Pastel2_r PiYG PiYG_r PuBu PuBuGn PuBuGn_r PuBu_r PuOr PuOr_r PuRd PuRd_r Purples Purples_r RdBu RdBu_r RdGy RdGy_r RdPu RdPu_r RdYlBu RdYlBu_r RdYlGn RdYlGn_r Reds Reds_r Set1 Set1_r Set2 Set2_r Set3 Set3_r Spectral Spectral_r Wistia Wistia_r YlGn YlGnBu YlGnBu_r YlGn_r YlOrBr YlOrBr_r YlOrRd YlOrRd_r afmhot afmhot_r autumn autumn_r binary binary_r bone bone_r brg brg_r bwr bwr_r cividis cividis_r cool cool_r coolwarm coolwarm_r copper copper_r cubehelix cubehelix_r flag flag_r gist_earth gist_earth_r gist_gray gist_gray_r gist_grey gist_heat gist_heat_r gist_ncar gist_ncar_r gist_rainbow gist_rainbow_r gist_stern gist_stern_r gist_yarg gist_yarg_r gist_yerg gnuplot gnuplot2 gnuplot2_r gnuplot_r gray gray_r grey hot hot_r hsv hsv_r inferno inferno_r jet jet_r magma magma_r nipy_spectral nipy_spectral_r ocean ocean_r pink pink_r plasma plasma_r pqlx prism prism_r rainbow rainbow_r seismic seismic_r spring spring_r summer summer_r tab10 tab10_r tab20 tab20_r tab20b tab20b_r tab20c tab20c_r terrain terrain_r turbo turbo_r twilight twilight_r twilight_shifted twilight_shifted_r viridis viridis_r winter winter_r

Colormap max

Grid Yes No

X min

X max

Y min

Y max

Image configuration

Width

Height

DPI

Format PNG JPG PDF

Transparency Yes No

Return code in case of missing data

Documentation

Examples

• http://ws.resif.fr/resifws/seedpsd/1/spectrogram?net=FR&sta=CIEL&loc=00&cha=HHZ&starttime=2021-01-01&endtime=2022-01-01&nodata=404

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         ::  [grid=<true|false>] [cmap=<>] [cmax=<>]
                         [xmin=<>] [xmax=<>] [ymin=<>] [ymax=<>]

(..) mandatory
[..] optional

Parameters

Data source selection

Parameter	Alias	Exemple	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

• Wildcards: the question mark ? represents any single character, while the asterisk * represents zero or more characters.
• List: multiple items may be retrieved using a comma-separated list. Wildcards may be included in the list.

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

Time period selection

Parameter	Alias	Exemple	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

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)
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		900	Output image width (pixels). From 640 to 2000.
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	viridis_r	Name of the colormap Matplotlib to use	cmap
colormap_max	cmax	30	Maximum value of the colormap
grid		true	Displays the grid	grid
period_min	xmin	0.01	Minimum limit of periods to be represented on the X axis
period_max	xmax	179	Maximum limit of the periods to be represented on the X axis
power_min	ymin	-200	Minimum limit of values to be represented on the Y axis
power_max	ymax	-50	Maximum limit of the values to be represented on the Y axis