Hi Annika,

 

I should be able to help with this. The URLs that you mentioned in your first message are still the correct URLs. If you open them in your browser you will get this:

 

Error {

    code = 400;

    message = "Unrecognized request";

}

 

That is actually the OPeNDAP server saying that it does not understand what you are asking it to retrieve (OPeNDAP requires clients to include a query string in the URL in order to retrieve something). If you see that “code = 400” error in your browser, it means that the browser is able to reach the server through your firewalls, etc. In most cases, it means that MGET should be able to do it as well.

 

If you add a .html onto those urls, you will get a human-readable “OPeNDAP Dataset Access Form”. This can give you additional confidence that the browser is talking to the server and the server’s OPeNDAP service seems to be functional.

 

Assuming you see that, the question then is: why is MGET is not working? To understand this, I’d need to see the complete output from the tool. Could you please send that? Better yet, could you please enable verbose logging (instructions here), reproduce the problem, and then send it?

 

Thanks,

Jason

 

 

 

Hi again,

 

Further to my earlier email (copied below), our IT department have said that access is ok from our side, but have advised that the addresses are no longer valid/appear to have changed (perhaps some house-keeping has been done).  The parent folders are at the following addressed for OSCAR and YCOM currents respectively:

http://thredds.jpl.nasa.gov/thredds/catalog.html

http://tds.hycom.org/thredds/catalog.html

Is it possible for you to update the addresses in the Python scripts that the tool uses, or is this tool essentially ‘retired’?  Or is there a more up-to-date version of the tool that we should use (we used the MGET tool for ArcGIS 10.1-10.4, as we’re using ArcGIS 10.3, with Python 2.7)?

 

Thank you for your time.

 

Best wishes,

Annika

 

 

 

Hi Jason/anyone who can help J

 

We have been trying to use the ‘Simulate Larval Dispersal’ tool , and have successfully completed step 1 (Create larval dispersal simulation from ArcGIS rasters) and have since been attempting to load currents data (specifically either the HYCOM GLBa0.08, or the OSCAR currents), however these have not worked so far due to an issue with connecting to the servers.  I am getting our IT folk to check it’s not an issue with our firewalls blocking access (I work for a research institute in Northern Ireland which has its internet through the NI Gov servers, so it’s high security and blocks many sites) but I wanted to check that the addresses used in the tool are up-to-date?

Specifically these are:

http://tds.hycom.org/thredds/dodsC/glb_analysis 

and

http://thredds.jpl.nasa.gov/thredds/dodsC/ocean_circulation/FOR_LAS_ALL_OSCAR_L4_OC_third-deg_FOR_LAS.nc 

Thank you in advance for your help.

 

Kind regards,

Annika

 

Dr. Annika Clements | Senior Scientific Officer - Seabed Habitat Mapping
Agri-Food and Biosciences Institute | Fisheries and Aquatic Ecosystems Branch | Newforge Lane | Belfast | BT9 5PX
Direct Tel: +44 (0)28 90255153

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