Short Citation:
Office for Coastal Management, 2021: Current Speed and Direction, https://www.fisheries.noaa.gov/inport/item/55353.

Item Identification

Title: Current Speed and Direction
Short Name: Current_U_V_M
Status: Completed
Abstract:

Monthly and annual U and V vectors were summarized for 14 unique depth levels from daily means using the HYCOM and NCODA Global 1/12° Reanalysis. The U vector (m/s) is to the East and the V vector (m/s) is to the North. Current magnitude (m/s) was calculated using the daily U and V vectors.. Descriptive statistics of mean, variance, standard deviations, minimum, and maximum were calculated for each month from the twenty years of data using the daily means (1992-2012). Mean, variance, and, standard deviation was calculated for the annual summary (1992-2012). The mean direction in degrees (with 0° = North) was calculated from the summarized U and V vector means, and represents the direction that the current is moving toward. The 1/12 degree global HYCOM+NCODA Ocean Reanalysis was funded by the U.S. Navy and the Modeling and Simulation Coordination Office. Computer time was made available by the DoD High Performance Computing Modernization Program. The output is publicly available at http://hycom.org.

Purpose:

To support coastal and ocean planning and other activities pursuant to the Energy Policy Act, Coastal Zone Management Act, Magnuson-Stevens Fishery Conservation and Management Act, National Environmental Policy Act, Rivers and Harbors Act and the Submerged Lands Act.

Supplemental Information:

The native coordinate system for this layer is WGS 1984 World Mercator (ESPG: 3395). Please note: all MarineCadastre.gov data served by the NOAA Office for Coastal Management and hosted through Esri REST services are in the WGS 1984 Web Mercator Auxiliary Sphere (EPSG: 3857) projection.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords Earth Science > Human Dimensions > Environmental Governance/Management
ISO 19115 Topic Category environment
ISO 19115 Topic Category farming
ISO 19115 Topic Category oceans
ISO 19115 Topic Category planningCadastre
None alternative energy planning
None coastal energy planning
None environment
None environmental
None environmental energy planning
None farming
None marine cadastre
None marine spatial planning
None national
None ocean current energy production
None ocean currents
None ocean energy planning
None oceans
None offshore energy planning
None planningCadastre
None renewable energy planning
None United States
None water column features

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords Continent > North America > United States Of America
None Atlantic
None national
None Pacific
None United States

Physical Location

City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: Map (digital)
Distribution Liability:

NOAA makes no warranties or representations whatsoever regarding the availability, quality, accuracy, content, completeness or suitability for the user's needs of such information. The services, information, and data made available on the Marine Cadastre web site are provided "as is" without warranties of any kind. These data are intended for coastal and ocean use planning. Not for navigation. http://www.marinecadastre.gov/about/disclaimer.html

Data Set Credit: ORIGINATORS: U. S. Global Ocean Data Assimilation Experiment (GODAE), National Ocean Partnership Program (NOPP); Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS); Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS), Office for Coastal Management (OCM);

Support Roles

Data Steward

CC ID: 812765
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 812766
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): Office for Coastal Management (OCM)
Address: 2234 South Hobson Avenue
Charleston, SC 29405-2413
URL: https://www.coast.noaa.gov/

Metadata Contact

CC ID: 812768
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 812767
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Publication Date

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 812770
W° Bound: -179.919999
E° Bound: 179.920001
N° Bound: 74.64
S° Bound: 14

Access Information

Security Class: Unclassified
Data Use Constraints:

NOAA makes no warranties or representations whatsoever regarding the availability, quality, accuracy, content, completeness or suitability for the user's needs of such information. The services, information, and data made available on the Marine Cadastre web site are provided "as is" without warranties of any kind. These data are intended for coastal and ocean use planning. Not for navigation. http://www.marinecadastre.gov/about/disclaimer.html

Distribution Information

Distribution 1

CC ID: 812772
Download URL: ftp://ftp.coast.noaa.gov/pub/MSP/ORT/
Distributor:
Description:

Data access URL

Distribution 2

CC ID: 812773
Download URL: https://coast.noaa.gov/
Distributor:
Description:

Data access URL

Distribution 3

CC ID: 812771
Download URL: https://coast.noaa.gov/arcgis/rest/services/OceanReportingTool/CurrentMagnitudeDirection/MapServer
Distributor:
Description:

Data access URL

URLs

URL 1

CC ID: 812763
URL: https://marinecadastre.gov/oceanreports
Name: Ocean Reporting Tool
URL Type:
Online Resource
Description:

More information and online data visualization.

Technical Environment

Description:

Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333

Data Quality

Accuracy:

The attributes in this dataset are believed to be accurate.

Horizontal Positional Accuracy:

Maximum scale of intended use is 1:80,000.

Completeness Report:

Spatial and attribute properties are believed to be complete, although attribute information has been simplified. Geometric thresholds from original data are preserved. No tests have been completed for exhaustiveness.

Conceptual Consistency:

These data are believed to be logically consistent. Geometry is topologically clean.

Lineage

Sources

HYCOM and NCODA Global 1/12° Reanalysis

CC ID: 812760
Contact Name: U. S. Global Ocean Data Assimilation Experiment (GODAE), National Ocean Partnership Program (NOPP)
Extent Type: Discrete
Extent Start Date/Time: 2018-08-01
Citation URL: https://www.arcgis.com/home/item.html?id=5075d771f6894080ac190c3ccd954f0e
Citation URL Name: Source Online Linkage
Citation URL Description:

URL where the source data were originally accessed.

Source Contribution:

HYCOM Current Speed and Direction

Process Steps

Process Step 1

CC ID: 812761
Description:

(1) A daily snapshot (1200 hours data file) of the HYCOM + NCODA Global 1/12° Reanalysis data was downloaded from the HYCOM website in NetCDF format. The data range spanned from 10/2/1992 to 12/31/2012. Global temperature, salinity, u and v grids were extracted from the daily HYCOM NetCDF files for each of the available z-levels (depth). A current magnitude grid was created for each u/v grid. Mean, minimum, maximum, variance and standard deviation grids were calculated for each variable-depth-month combination by combining all of the daily files for each variable-depth-month (e.g. temperature-40m-January). Mean, minimum, maximum, and standard deviation were also calculated by combining daily files across the entire time span (annual). (2) Data were extracted from netCDF files and stored in CSV files for each variable, statistic, and depth level (38 depth levels) (3) 14 unique depth levels were created as values were identical (2-125, 150-250, 300-350, 400-500, 600, 700, 800, 900-1000, 1250, 1500, 2000, 3000, 4000, 5000) and stored in a single CSV. (4) CSVs for each statistic (mean, min, max, var, stdev) were combined into a single csv file for each month. (Therefore each variable has 12 monthly CSV and 1 annual CSV.) Note: for annual no min or max statistics were generated. (5) All CSV files were exported as feature datasets. (6) Direction in degrees was calculated from U and V mean vectors (not calculated for max, min, std, var). Direction is the direction the current is moving to. (7) All CSV files were clipped by the U.S. Exclusive Economic Zone (EEZ). (8) Any record with Null for all Depth levels was removed. (9) Feature classes were projected into WGS 1984 World Mercator.

Process Date/Time: 2018-08-01 00:00:00

Catalog Details

Catalog Item ID: 55353
Metadata Record Created By: Anna Verrill
Metadata Record Created: 2019-01-14 21:20+0000
Metadata Record Last Modified By: Jesse Brass
Metadata Record Last Modified: 2019-09-28 12:32+0000
Metadata Record Published: 2019-01-15
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2020-01-16