dc.date.accessioned | 2019-01-07T18:54:47Z | |
dc.date.available | 2019-01-07T18:54:47Z | |
dc.date.issued | 2003 | |
dc.identifier.citation | NOAA NOS Center for Operational Oceanographic Products and Services (2003) Computational techniques for tidal datums handbook. Silver Spring, MD, NOAA NOS Center for Operational Oceanographic Products and Services, 98pp & Appendices (NOAA Special Publication NOS CO-OPS 2). DOI: http://dx.doi.org/10.25607/OBP-190 | en_US |
dc.identifier.uri | http://hdl.handle.net/11329/631 | |
dc.identifier.uri | http://dx.doi.org/10.25607/OBP-190 | |
dc.description.abstract | This handbook is intended to provide education and training for both internal and external
audiences to NOAA. It presents the National Ocean Service (NOS) methodology for the
computation of tidal datums and explains how
to use the Center for Operational Oceanographic
Products and Services (CO-OPS) water level data
and bench mark information available on the
internet for tidal datum computations. Fundamental background for tide measurement and data
processing is also reviewed. Detailed descriptions of tidal datum procedures, the background
mathematical formulas, and example spreadsheets are interwoven in the various sections.
The handbook is designed to be both a technical
reference and a guidance document for the
practical determination of tidal datums using tide gauge measurements. It does not present methods
for surveying, or address the problems associated with instrument installation, calibration, data
collection, or quality assurance of water level data. Nor does it present specific algorithms for
computation, or recommend what software packag
es should be used. However, a knowledgeable
coastal engineer or scientist should be able to follow the key steps and arrive at the same results
posted on the CO-OPS website (http://www.tidesandcurrents.noaa.gov).
1.2 Statement of Philosophy
The philosophy of this handbook is that fairly simple, straight-forward examples should be
presented. CO-OPS is confident that coastal engi
neers will be able to compute datums similar to
these “straight-forward” examples using this ma
nual. The emphasis is on education and training,
illustrated by clear real-world examples of tidal datum calculations. By reading this material, coastal
engineers and surveyors will gain an understanding
of how to reduce the data that they may have
collected themselves, and gain necessary skills
to handle more difficult cases. The datum
computational methods described in this handbook
produce valid datums where the tidal conditions
and tide station locations for datum determinati
on are straightforward. Difficult cases should be
referred to CO-OPS for consultation. These cases
might include project areas of rapidly changing
tidal characteristics either temporally or geogr
aphically, measurements collected during extreme
events, cases of poor data, data
records with too many gaps, or poor station coverage. Additional
special cases that may render the methods not applicable include situations where the astronomic
tide is frequently masked by non-tidal effects (such as areas where wind-driven water level
variations dominate and areas affected by river
runoff); and where man-made structures (such as
locks or water gates) affect the water level variations.
1.3 Prerequisite Knowledge
The reader will need to possess
a mathematical understanding of means, standard deviations,
differences, and errors. The reader should posse
ss knowledge of suitable computer software such
as spreadsheet programs, and have an internet
browser and should have some basic scientific
knowledge of tides and water levels, and some know
ledge of the legal and practical significance of
tidal datums (e.g, NOS, 2000). | en_US |
dc.language.iso | en | en_US |
dc.publisher | NOAA, NOS Center for Operational Oceanographic Products and Services | en_US |
dc.relation.ispartofseries | NOAA Special Publication NOS CO-OPS;2 | |
dc.rights | CC0 1.0 Universal | * |
dc.rights.uri | http://creativecommons.org/publicdomain/zero/1.0/ | * |
dc.subject.other | Tidal datum | en_US |
dc.title | Computational techniques for tidal datums handbook. | en_US |
dc.type | Report | en_US |
dc.description.status | Published | en_US |
dc.format.pages | 98pp. & Appendices | en_US |
dc.contributor.corpauthor | NOAA NOS Center for Operational Oceanographic Products and Services | |
dc.description.notes | The first draft of this document was prepared by John Schultz and Briah Connor under contract to Neptune Sciences, Inc. Subsequent revisions were the result reviews of several oceanographers in the Center for Operational Products and Services (CO-OPS) and the results of practical use by external users of the first draft. | en_US |
dc.description.refereed | Refereed | en_US |
dc.publisher.place | Silver Spring, MD | en_US |
dc.subject.parameterDiscipline | Parameter Discipline::Physical oceanography::Sea level | en_US |
dc.rights.license | Public Domain | |
dc.description.currentstatus | Current | en_US |
dc.description.eov | Sea surface height | en_US |
dc.description.bptype | Best Practice | en_US |
dc.description.bptype | Guide | en_US |
obps.contact.contactemail | coops.webmaster@noaa.gov | |
obps.resourceurl.publisher | Publisher: https://tidesandcurrents.noaa.gov/pub.html | en_US |
obps.resourceurl.dataset | Dataset: https://data-erddap.emodnet-physics.eu/erddap/tabledap/ERD_EP_TS_RVFL_NRT_METADATA.html | |