Current Speed and Direction
Office for Coastal Management (OCM)Data Set (DS) | ID: 55353 | Published / External
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
| 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
| 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
| 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
| 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
| 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
| Download URL: | ftp://ftp.coast.noaa.gov/pub/MSP/ORT/ |
|---|---|
| Distributor: | |
| Description: |
Data access URL |
Distribution 2
| Download URL: | https://coast.noaa.gov/ |
|---|---|
| Distributor: | |
| Description: |
Data access URL |
Distribution 3
| Download URL: | https://coast.noaa.gov/arcgis/rest/services/OceanReportingTool/CurrentMagnitudeDirection/MapServer |
|---|---|
| Distributor: | |
| Description: |
Data access URL |
URLs
URL 1
| 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
| 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
| 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 |
