From:	Andrew Gilbert <>
To:	Jason Roberts <>, "" <>
Subject:	Re: [mget-help] Salinity data download request
Date:	Tue, 20 Jan 2015 08:16:31 -0500

Thanks Jason. I think this should work. Actually I was trying to mimic what another modeler was using and thought it was data from the Aquarius program, but actually it looks like they might have been using similarly assimilated data from the Navy based on the NCOM modeling for US East coast, specifically http://ecowatch.ncddc.noaa.gov/useast/. We are modeling in the Mid-Atlantic so this is a higher res product. I think for now however, the HYCOM product, which I assume is very similar, but coarser and over a wider scale will work for us. I'm providing the covariates along with processed data to modelers so we'll see what they say about using something else. I might have to revert to downloading the data myself, but I thought I'd try to for low hanging fruit and user your tools which have thus far worked great.

By the way, when using HYCOM 4D and specifying salinity, the depth value does not seem to be optional, even though it is specified as such. I thing you are missing a default value for this. It bonked when I put nothing, giving me

"Running script HYCOMGLBa008Equatorial4DInterpolateAtArcGISPoints...
ValueError: salinity grid of the equatorial region of the HYCOM + NCODA Global 1/12 degree Analysis (GLBa0.08) has a z dimension but ArcGIS FeatureLayer "BRI_DOE_hidef_tran_MidPt_4km_Interv" of FeatureClass "Q:\GIS\Data\AerialSurveys_FGDB.gdb\BRI_DOE_hidef_tran_MidPt_4km_Interv" has Point geometry and a z-coordinate field was not specified. It must have Point25D geometry or you must specify a z-coordinate field or specify the value of the z coordinate.
Failed script HYCOMGLBa008Equatorial4DInterpolateAtArcGISPoints..."

If I entered 0 in depth value, it worked fine.

Thanks for your work on these tools again. It does save an enormous amount of time for end users. Having been on the brute force side of downloading everything and associating data with each point, I can speak from experience.

If you happen to add the NCOM product for the NE at some point, let me know.

Cheers, Andrew


On 1/19/2015 3:52 PM, Jason Roberts wrote:

Andrew,

Thanks for your interest. You are correct; we have not yet written any tools 
for Aquarius. It would not be too hard to write a tool that would work with 
the Aquarius L3 salinity datasets. If we were to write such a tool, it would 
pull the data from NASA PO.DAAC, i.e. from these:

http://podaac.jpl.nasa.gov/datasetlist?ids=Measurement:ProcessingLevel&values=Salinity%2FDensity:*3*&search=aquarius%20%252Bproject&view=list

Is would that work. I'm pretty busy at the moment but may have some time 
coming up. Let me know more specifically what you're interested in and 
whether it would help and we can talk more.

As an alternative, MGET does include tools for HYCOM's GLBa0.08 dataset, 
which includes salinity. It is from an assimilating model, rather than from 
satellite directly. I don't know if they are assimilating Aquarius. On the 
plus side, it would have about 9 km resolution, vs 1 degree for Aquarius. On 
the minus side, there are some constraints about where it is available; 
currently the MGET tool cannot provide values north of 60 N, if I recall 
correctly.

Hope that helps,

Jason


-----Original Message-----
From: Andrew Gilbert 
[mailto:]
Sent: Friday, January 16, 2015 5:07 PM
To: 

Subject: [mget-help] Salinity data download request

Hi MGET team,
I've been using your MGET tools to assign some satellite environmental covs 
for modeling. It's a great tool. Thanks for continuing to improve it. I 
didn't find an interpolate to points data product for satellite derived 
salinity. Particularly I'm looking to get data L3 daily data from the 
Aquarius mission (http://aquarius.umaine.edu/cgi/data.htm). Is this something 
that could be added? I hope I didn't miss it in the tool, I downloaded the 
latest (0.8a56) to make sure. Thanks again.
Cheers, Andrew

--
Andrew Gilbert
Data Management Director
Biodiversity Research Institute
276 Canco Rd.
Portland, ME 04103
207-839-7600

www.briloon.org

--
Andrew Gilbert
Data Management Director
Biodiversity Research Institute
276 Canco Rd.
Portland, ME 04103
207-839-7600

www.briloon.org

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