Hydrographic surveys
After emergent obstruction surveys to re-open affected ports, JHOD has been carrying out hydrographic surveys to revise the nautical charts for the affected ports. By the end of March 2012, the bathymetric surveys have covered the highest-priority areas such as passages and proximity of berths for each of 11 affected ports. In advance of is suing revised nautical charts, JHOD provided mariners with “Seafloor information maps” based on the smooth sheets immediately after finishing survey data analyses, supporting the economic activities and the recovery activities in devastated areas.
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| Format: | Journal Contribution biblioteca |
| Language: | Japanese |
| Published: |
2012
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| Online Access: | http://hdl.handle.net/1834/15623 |
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