geotechnical engineering projects. MASWV 12 Swept 10-50 Hz Fast, simple, Multiple number of source( of receiver (> 12) used. Vibroseis) surveying, Strong arrivals multichannel (refraction events) may recording. More be troublesome detail in first few metres. MASWI 12 Impact Narrower Fast, simple, Same as MASWV (sledge frequency of (hammer) than MASWV surveying ReMi 12 Microtremor 2-40 Hz Fast, Linear receiver array, violation of the inexpensive, uses wavefield portable assumption equipment. Resolution at depth Refraction/reflection 12 to 60 Impact 10-90 Hz Good resolution Time consuming reflection data processing. Interpretation may be affected SPAC 4 to 7 Microtremor 2- 40 Hz Fast, Source energy must be randomly distributed 1-10 Hz inexpensive, uses portable equipment. Resolution at depth.
geotechnical engineering projects. MASWV 12 Swept source( Vibroseis) 10-50 Hz Fast, simple, of surveying, multichannel recording. More detail in first few metres. Multiple number of receiver (> 12) used. Strong arrivals (refraction events) may be troublesome MASWI 12 Impact (sledge (hammer) Narrower frequency than MASWV Fast, simple, of surveying Same as MASWV ReMi 12 Microtremor 2-40 Hz Fast, inexpensive, uses portable equipment. Resolution at depth Linear receiver array, violation of the wavefield assumption Refraction/reflection 12 to 60 Impact 10-90 Hz Good resolution Time consuming reflection data processing. Interpretation may be affected SPAC 4 to 7 Microtremor 2- 40 Hz 1-10 Hz Fast, inexpensive, uses portable equipment. Resolution at depth. Source energy must be randomly distributed