O*******d
发帖数: 20343 | 1 扫描声纳可以看到海底的物体。 特别是浅海区，更是有效。 失联飞机的海域平均水深
是90米，为什么到目前为止，没有用扫描声纳的报道？
Side-scan sonar (also sometimes called side scan sonar, sidescan sonar, side
imaging sonar, side-imaging sonar and bottom classification sonar) is a
category of sonar system that is used to efficiently create an image of
large areas of the sea floor. It may be used to conduct surveys for maritime
archaeology; in conjunction with seafloor samples it is able to provide an
understanding of the differences in material and texture type of the seabed.
Side-scan sonar imagery is also a commonly used tool to detect debris items
and other obstructions on the seafloor that may be hazardous to shipping or
to seafloor installations by the oil and gas industry. In addition, the
status of pipelines and cables on the seafloor can be investigated using
side-scan sonar. Side-scan data are frequently acquired along with
bathymetric soundings and sub-bottom profiler data, thus providing a glimpse
of the shallow structure of the seabed. Side-scan sonar is also used for
fisheries research, dredging operations and environmental studies. It also
has military applications including mine detection.
http://en.wikipedia.org/wiki/Side-scan_sonar
/800px-Lakemurray-wyse_ferry_Bridge_sonar.jpg
Wyse's Ferry Bridge on the bottom of Lake Murray, South Carolina seen on
sonar imagery from the Blue Heron fishing vessel in 2005. | s*y
发帖数: 18644 | | G*****h
发帖数: 33134 | 3 算算需要多少条船去扫？
side
maritime
an
seabed.
items
or
【在 O*******d 的大作中提到】
: 扫描声纳可以看到海底的物体。 特别是浅海区，更是有效。 失联飞机的海域平均水深
: 是90米，为什么到目前为止，没有用扫描声纳的报道？
: Side-scan sonar (also sometimes called side scan sonar, sidescan sonar, side
: imaging sonar, side-imaging sonar and bottom classification sonar) is a
: category of sonar system that is used to efficiently create an image of
: large areas of the sea floor. It may be used to conduct surveys for maritime
: archaeology; in conjunction with seafloor samples it is able to provide an
: understanding of the differences in material and texture type of the seabed.
: Side-scan sonar imagery is also a commonly used tool to detect debris items
: and other obstructions on the seafloor that may be hazardous to shipping or
| G*****h
发帖数: 33134 | 4 那个飞机知道大概失事地点
【在 s*y 的大作中提到】
: 法航447最后就是这么找出来的
| G**L
发帖数: 22804 | 5 现在根本不需要这玩意。现在黑匣子还有电还在发超声信号，如果真在海底的话，用一
般声纳就可以发现。问题是要找对地方，地方不对，天顶星技术也找不到
side
maritime
an
seabed.
items
or
【在 O*******d 的大作中提到】
: 扫描声纳可以看到海底的物体。 特别是浅海区，更是有效。 失联飞机的海域平均水深
: 是90米，为什么到目前为止，没有用扫描声纳的报道？
: Side-scan sonar (also sometimes called side scan sonar, sidescan sonar, side
: imaging sonar, side-imaging sonar and bottom classification sonar) is a
: category of sonar system that is used to efficiently create an image of
: large areas of the sea floor. It may be used to conduct surveys for maritime
: archaeology; in conjunction with seafloor samples it is able to provide an
: understanding of the differences in material and texture type of the seabed.
: Side-scan sonar imagery is also a commonly used tool to detect debris items
: and other obstructions on the seafloor that may be hazardous to shipping or
|
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