HYCOM grids now available in Google Earth Engine

[Kurt Schwehr]

We've loaded the temp, salinity, and velocity data from HYCOM grids for 1992 to present into Google Earth Engine:

https://explorer.earthengine.google.com/#search/hycom

Cheers,

-Kurt

Engineer at Google on the Earth Engine Team

Example of visualizing one layer of velocity from one day...

[Michael McDonald]

Thanks for spearheading this, Kurt!

What are the tds.hycom.org OPeNDAP URLs you are using to create this 1992-present day virtual aggregation?

I also notice that there is a "500 error" in the status section when initially loading the "Water Velocity" workspace layer, but after clicking on "Save/Apply" the error goes away.

https://www.dropbox.com/s/7ljvo01wgmlyn83/Screenshot%202017-10-09%2009.34.24.png?dl=0

Wanted to determine if that's something on our (hycom.org) side we need to address/fix. 

We've loaded the temp, salinity, and velocity data from HYCOM grids for 1992 to present into Google Earth Engine:

https://explorer.earthengine.google.com/#search/hycom

Cheers,

-Kurt

Engineer at Google on the Earth Engine Team

--

Michael McDonald
HYCOM.org Administrator

[Kurt Schwehr]

I'm looking forward to see how people use this dataset in Earth Engine!

We don't use OPenDAP.  We fetch the netcdf files for each day and convert them to an internal format as tiles for faster lookup.  We then have the tiles stored across a huge number of storage devices.  We do not fetch anything from outside of Google when people work with Earth Engine.  

If you'd like to know more, we have a paper:

Gorelick et al 2017, Google Earth Engine: Planetary-scale geospatial analysis for everyone

http://www.sciencedirect.com/science/article/pii/S0034425717302900

The http 500 error may have been a transient thing.  I wasn't able to reproduce.  We'll keep an eye out for it repeating.

And, people can add requests for new datasets and vote on (⭐) existing requests using our bug tracker.

Cheers,

-kurt

[Shanthi A. W. K. Kudawithanage]

Hi urt

Can I use this dataset to map ocean current/upwelling/circulation (same term).

Thanks

[Kurt Schwehr]

Hi Shanthi,

Yes - The model has horizontal flow velocity.  It does not have a vertical component.

https://code.earthengine.google.com/f754bdf0f010ca3ec8e5214c6e47ccb4

-kurt

[Shanthi A. W. K. Kudawithanage]

Thanks, I'll check it out sir 

[Rodrigo Duran]

Is there a way to access this data through google earth?

Thanks!

Rodrigo Duran, Ph.D.

oceanresearch.xyz

[Michael McDonald]

The Google on the Earth Engine Team subsetted (and routinely updates) the temp, salinity, and velocity data from HYCOM grids for 1992 to Present* into Google Earth Engine:

https://explorer.earthengine.google.com/#search/hycom