Skip to main content

Table 2 Specifications of S-net, ETMC, and DONET relevant to this study

From: “N”-shaped Y/X coda spectral ratio observed for in-line-type OBS networks; S-net and ETMC: interpretation based on natural vibration of pressure vessel

 

S-net

ETMC

DONET

Type of observation system

In-line

In-line

Node

Digging around station or buried when installed

Most stations installed at water depths of < 1500 m

No

Dependent on site and period (Table 1)

Mounted equipment to enhance coupling with seafloor

No

Yes

Yes

Gimbal system

No

Yes

Yes

Used seismic sensor

Velocity seismometer (15 Hz)

Velocity seismometer (1 Hz)

Broadband seismometer