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tide data
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hydro
Hydrographic Survey Support
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The Hydrographic Planning Team (HPT) coordinates all hydrographic survey support activities conducted by NOS's Center for Operational Products and Services (CO-OPS). Following assessment of requirements for water-level data acquisition and datum determination, the HPT provides input for hydrographic and photogrammetric survey project instructions to ensure vertical control in accordance with National Ocean Service standards. Consultation is provided to the Office of Coast Survey's Hydrographic Surveys Division (HSD) and to the National Geodetic Survey's Remote Sensing Division (RSD) for both in-house and contract surveys. |
| The HPT also develops tidal zoning schemes to facilitate the provision of water levels relative to chart datums across entire survey areas through corrections to time-series data from gauge locations. Requests for final approved tides result in the dissemination of approved time-series data, datum references, and tide note documentation to HSD and RSD for final survey sheet processing. Tidal regime analyses are conducted in support of CO-OPS special projects and user requests. |
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