HYCOM: Hybrid Coordinate Ocean Model, Water Velocity

HYCOM/sea_water_velocity
Dataset Availability
1992-10-02T00:00:00Z–2024-09-05T09:00:00Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("HYCOM/sea_water_velocity")
Cadence
1 Day
Tags
hycom nopp ocean oceans velocity water

Description

The Hybrid Coordinate Ocean Model (HYCOM) is a data-assimilative hybrid isopycnal-sigma-pressure (generalized) coordinate ocean model. The subset of HYCOM data hosted in EE contains the variables salinity, temperature, velocity, and elevation. They have been interpolated to a uniform 0.08 degree lat/long grid between 80.48°S and 80.48°N. The salinity, temperature, and velocity variables have been interpolated to 40 standard z-levels.

The HYCOM Consortium, which includes the National Ocean Partnership Program (NOPP), is part of the U.S. Global Ocean Data Assimilation Experiment (GODAE).

Funded by the National Ocean Partnership Program, the Office of Naval Research (ONR), and DoD High Performance Computing Modernization Program.

For more information, see:

Bands

Pixel Size
8905.6 meters

Bands

Name Units Min Max Scale Pixel Size Description
velocity_u_0 m/s -31557* 16899* 0.001 meters

Eastward sea water velocity at a depth of 0m
velocity_v_0 m/s -20004* 32767* 0.001 meters

Northward sea water velocity at a depth of 0m
velocity_u_2 m/s -31588* 16806* 0.001 meters

Eastward sea water velocity at a depth of 2m
velocity_v_2 m/s -20000* 32767* 0.001 meters

Northward sea water velocity at a depth of 2m
velocity_u_4 m/s -31589* 16831* 0.001 meters

Eastward sea water velocity at a depth of 4m
velocity_v_4 m/s -20000* 32767* 0.001 meters

Northward sea water velocity at a depth of 4m
velocity_u_6 m/s -31589* 16794* 0.001 meters

Eastward sea water velocity at a depth of 6m
velocity_v_6 m/s -19991* 32767* 0.001 meters

Northward sea water velocity at a depth of 6m
velocity_u_8 m/s -31575* 16828* 0.001 meters

Eastward sea water velocity at a depth of 8m
velocity_v_8 m/s -19792* 32767* 0.001 meters

Northward sea water velocity at a depth of 8m
velocity_u_10 m/s -31563* 16828* 0.001 meters

Eastward sea water velocity at a depth of 10m
velocity_v_10 m/s -19582* 32767* 0.001 meters

Northward sea water velocity at a depth of 10m
velocity_u_12 m/s -31547* 16828* 0.001 meters

Eastward sea water velocity at a depth of 12m
velocity_v_12 m/s -19582* 32767* 0.001 meters

Northward sea water velocity at a depth of 12m
velocity_u_15 m/s -31517* 16828* 0.001 meters

Eastward sea water velocity at a depth of 15m
velocity_v_15 m/s -19582* 32767* 0.001 meters

Northward sea water velocity at a depth of 15m
velocity_u_20 m/s -32768* 16743* 0.001 meters

Eastward sea water velocity at a depth of 20m
velocity_v_20 m/s -18593* 32767* 0.001 meters

Northward sea water velocity at a depth of 20m
velocity_u_25 m/s -32768* 16370* 0.001 meters

Eastward sea water velocity at a depth of 25m
velocity_v_25 m/s -18131* 32767* 0.001 meters

Northward sea water velocity at a depth of 25m
velocity_u_30 m/s -32768* 15996* 0.001 meters

Eastward sea water velocity at a depth of 30m
velocity_v_30 m/s -17489* 32767* 0.001 meters

Northward sea water velocity at a depth of 30m
velocity_u_35 m/s -32768* 15639* 0.001 meters

Eastward sea water velocity at a depth of 35m
velocity_v_35 m/s -17409* 32767* 0.001 meters

Northward sea water velocity at a depth of 35m
velocity_u_40 m/s -32768* 15120* 0.001 meters

Eastward sea water velocity at a depth of 40m
velocity_v_40 m/s -17386* 32767* 0.001 meters

Northward sea water velocity at a depth of 40m
velocity_u_45 m/s -32768* 15066* 0.001 meters

Eastward sea water velocity at a depth of 45m
velocity_v_45 m/s -17302* 32767* 0.001 meters

Northward sea water velocity at a depth of 45m
velocity_u_50 m/s -32768* 14808* 0.001 meters

Eastward sea water velocity at a depth of 50m
velocity_v_50 m/s -17302* 32767* 0.001 meters

Northward sea water velocity at a depth of 50m
velocity_u_60 m/s -32768* 15986* 0.001 meters

Eastward sea water velocity at a depth of 60m
velocity_v_60 m/s -17070* 32767* 0.001 meters

Northward sea water velocity at a depth of 60m
velocity_u_70 m/s -32768* 14406* 0.001 meters

Eastward sea water velocity at a depth of 70m
velocity_v_70 m/s -16976* 22779* 0.001 meters

Northward sea water velocity at a depth of 70m
velocity_u_80 m/s -32768* 27875* 0.001 meters

Eastward sea water velocity at a depth of 80m
velocity_v_80 m/s -16936* 23957* 0.001 meters

Northward sea water velocity at a depth of 80m
velocity_u_90 m/s -32768* 27666* 0.001 meters

Eastward sea water velocity at a depth of 90m
velocity_v_90 m/s -16757* 23947* 0.001 meters

Northward sea water velocity at a depth of 90m
velocity_u_100 m/s -32768* 24932* 0.001 meters

Eastward sea water velocity at a depth of 100m
velocity_v_100 m/s -16717* 23631* 0.001 meters

Northward sea water velocity at a depth of 100m
velocity_u_125 m/s -32768* 24627* 0.001 meters

Eastward sea water velocity at a depth of 125m
velocity_v_125 m/s -14743* 23518* 0.001 meters

Northward sea water velocity at a depth of 125m
velocity_u_150 m/s -32768* 24288* 0.001 meters

Eastward sea water velocity at a depth of 150m
velocity_v_150 m/s -14700* 23444* 0.001 meters

Northward sea water velocity at a depth of 150m
velocity_u_200 m/s -32768* 21844* 0.001 meters

Eastward sea water velocity at a depth of 200m
velocity_v_200 m/s -13198* 23434* 0.001 meters

Northward sea water velocity at a depth of 200m
velocity_u_250 m/s -32768* 21389* 0.001 meters

Eastward sea water velocity at a depth of 250m
velocity_v_250 m/s -13176* 23418* 0.001 meters

Northward sea water velocity at a depth of 250m
velocity_u_300 m/s -32768* 14403* 0.001 meters

Eastward sea water velocity at a depth of 300m
velocity_v_300 m/s -3218* 21128* 0.001 meters

Northward sea water velocity at a depth of 300m
velocity_u_350 m/s -32768* 11257* 0.001 meters

Eastward sea water velocity at a depth of 350m
velocity_v_350 m/s -3183* 20974* 0.001 meters

Northward sea water velocity at a depth of 350m
velocity_u_400 m/s -32768* 14624* 0.001 meters

Eastward sea water velocity at a depth of 400m
velocity_v_400 m/s -3089* 21402* 0.001 meters

Northward sea water velocity at a depth of 400m
velocity_u_500 m/s -32768* 11012* 0.001 meters

Eastward sea water velocity at a depth of 500m
velocity_v_500 m/s -2848* 20965* 0.001 meters

Northward sea water velocity at a depth of 500m
velocity_u_600 m/s -32768* 10572* 0.001 meters

Eastward sea water velocity at a depth of 600m
velocity_v_600 m/s -2568* 20968* 0.001 meters

Northward sea water velocity at a depth of 600m
velocity_u_700 m/s -32768* 10330* 0.001 meters

Eastward sea water velocity at a depth of 700m
velocity_v_700 m/s -2321* 21448* 0.001 meters

Northward sea water velocity at a depth of 700m
velocity_u_800 m/s -32768* 8503* 0.001 meters

Eastward sea water velocity at a depth of 800m
velocity_v_800 m/s -2333* 20965* 0.001 meters

Northward sea water velocity at a depth of 800m
velocity_u_900 m/s -32768* 6941* 0.001 meters

Eastward sea water velocity at a depth of 900m
velocity_v_900 m/s -2577* 20958* 0.001 meters

Northward sea water velocity at a depth of 900m
velocity_u_1000 m/s -32768* 6951* 0.001 meters

Eastward sea water velocity at a depth of 1000m
velocity_v_1000 m/s -2299* 20956* 0.001 meters

Northward sea water velocity at a depth of 1000m
velocity_u_1250 m/s -32768* 8351* 0.001 meters

Eastward sea water velocity at a depth of 1250m
velocity_v_1250 m/s -2244* 20950* 0.001 meters

Northward sea water velocity at a depth of 1250m
velocity_u_1500 m/s -22775* 3659* 0.001 meters

Eastward sea water velocity at a depth of 1500m
velocity_v_1500 m/s -2154* 20937* 0.001 meters

Northward sea water velocity at a depth of 1500m
velocity_u_2000 m/s -22448* 2811* 0.001 meters

Eastward sea water velocity at a depth of 2000m
velocity_v_2000 m/s -2010* 20936* 0.001 meters

Northward sea water velocity at a depth of 2000m
velocity_u_2500 m/s -32768* 1865* 0.001 meters

Eastward sea water velocity at a depth of 2500m
velocity_v_2500 m/s -1863* 18919* 0.001 meters

Northward sea water velocity at a depth of 2500m
velocity_u_3000 m/s -21841* 1677* 0.001 meters

Eastward sea water velocity at a depth of 3000m
velocity_v_3000 m/s -1819* 18923* 0.001 meters

Northward sea water velocity at a depth of 3000m
velocity_u_4000 m/s -21345* 1980* 0.001 meters

Eastward sea water velocity at a depth of 4000m
velocity_v_4000 m/s -1383* 18856* 0.001 meters

Northward sea water velocity at a depth of 4000m
velocity_u_5000 m/s -21469* 2013* 0.001 meters

Eastward sea water velocity at a depth of 5000m
velocity_v_5000 m/s -971* 15383* 0.001 meters

Northward sea water velocity at a depth of 5000m
* estimated min or max value

Image Properties

Image Properties

Name Type Description
experiment STRING

Experiment number

Terms of Use

Terms of Use

This dataset is freely available with no restrictions.

Citations

Citations:

  • J. A. Cummings and O. M. Smedstad. 2013: Variational Data Assimilation for the Global Ocean. Data Assimilation for Atmospheric, Oceanic and Hydrologic Applications vol II, chapter 13, 303-343.

Explore with Earth Engine

Code Editor (JavaScript)

var velocity = ee.Image('HYCOM/sea_water_velocity/2014040700').divide(1000);

// Compute speed from velocity.
Map.addLayer(
    velocity.select('velocity_u_0').hypot(velocity.select('velocity_v_0')));

Map.setCenter(-60, 33, 5);
Open in Code Editor
The Hybrid Coordinate Ocean Model (HYCOM) is a data-assimilative hybrid isopycnal-sigma-pressure (generalized) coordinate ocean model. The subset of HYCOM data hosted in EE contains the variables salinity, temperature, velocity, and elevation. They have been interpolated to a uniform 0.08 degree lat/long grid between 80.48°S and 80.48°N. The salinity, temperature, and …
HYCOM/sea_water_velocity, hycom,nopp,ocean,oceans,velocity,water
1992-10-02T00:00:00Z/2024-09-05T09:00:00Z
-80.48 -180 80.48 180
Google Earth Engine