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| | Abstract | | A new type of Land Streamer was made for conducting P-wave shallow seismic reflection surveying. We employed a pair of stainless wire as towing member to reduce weight and to extend receiver intervals for shallow reflection surveying down to a few hundred meters. Forty-eight channels at 1 m intervals were the longest geometry in the conventional Land Streamer, which utilized woven belts, due to the heavy weight to be towed. In contrast, the newly developed Land Streamer can attach 96-channel geophones at 2.5 m spacing. A field test showed the tool could provide a high-resolution profile of shallow depths. The test also showed the tendency of the tool to be influenced by coupling condition of the baseplates and the surface statics compared with the S-wave survey even at the paved areas. |
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