new entries

[amilan17]

Hello -
We are planning on using LinkPropertyLookupTable terms for our ISO metadata in NOAA and request that you add the following:

HTTPS
URL: https://tools.ietf.org/html/rfc2818

FTP
URL: https://tools.ietf.org/html/rfc959

OPeNDAP:Hyrax
URL: http://docs.opendap.org/index.php/Hyrax

Thanks,
Anna

[tomkralidis]

@amilan17 for HTTPS, we already have a WWW:LINK entry which can cover both HTTP and HTTPS. Does this work for you?

[amilan17]

Hi @tomkralidis - According to the current list, WWW:LINK is defined by the XLink standard (http://www.w3.org/TR/xlink/) and this doesn't match the "secure HTTP connections over
the Internet" definition for HTTPS. Furthermore, I think we will have a use case where we need to clarify the type of link...

[rsignell-usgs]

So @amilan17, the idea is that...

OPeNDAP:Hyrax should be used for endpoints like this:
https://data.nodc.noaa.gov/opendap/ghrsst/L4/GLOB/DMI/DMI_OI/

while

UNIDATA:THREDDS should be used for endpoints like this:
https://data.nodc.noaa.gov/thredds/catalog/ghrsst/L4/GLOB/DMI/DMI_OI/

Is that right?

[amilan17]

I believe so.

Anna
~~~~~~Metadata Adds Meaning~~~~~~
Anna.Milan@noaa.gov, 303-497-5099
NOAA National Centers for Environmental Information
(formerly NOAA’s National Geophysical Data Center)
http://www.ngdc.noaa.gov/metadata/emma
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

On Fri, Sep 23, 2016 at 8:02 AM, Rich Signell notifications@github.com
wrote:

So @amilan17 https://github.com/amilan17, the idea is that...

OPeNDAP:Hyrax should be used for endpoints like this:
https://data.nodc.noaa.gov/opendap/ghrsst/L4/GLOB/DMI/DMI_OI/

while

UNIDATA:THREDDS should be used for endpoints like this:
https://data.nodc.noaa.gov/thredds/catalog/ghrsst/L4/GLOB/DMI/DMI_OI/

Is that right?

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[tomkralidis]

@amilan17 implemented in master. What's the difference between OPeNDAP:OPeNDAP and OPeNDAP:Hyrax, then?

[BobSimons]

I don't know the intent of the people who created those entries, but I
would interpret them as:
OPeNDAP:OPeNDAP - applicable to any service that follows the DAP
specification.
OPeNDAP:Hyrax - specifically to identify a Hyrax server (the DAP server
made by the OPeNDAP organization) (as opposed to other DAP servers like
THREDDS, GRADS, ERDDAP, PyDAP, ...).

On Mon, Sep 26, 2016 at 6:51 PM, Tom Kralidis notifications@github.com
wrote:

@amilan17 https://github.com/amilan17 implemented in master. What's the
difference between OPeNDAP:OPeNDAP and OPeNDAP:Hyrax, then?

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Sincerely,

Bob Simons
IT Specialist
Environmental Research Division
NOAA Southwest Fisheries Science Center
99 Pacific St., Suite 255A (New!)
Monterey, CA 93940 (New!)
Phone: (831)333-9878 (New!)
Fax: (831)648-8440
Email: bob.simons@noaa.gov

The contents of this message are mine personally and
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[tomkralidis]

@BobSimons thanks for the clarification. If this means that a Hyrax server is just an OPeNDAP instance then I would propose we remove. Thoughts?

[BobSimons]

No. Please don't remove it.

Lots of servers use the DAP protocol: Hyrax, THREDDS, ERDDAP, PyDAP, GRADS,
...
But each one implements a different subset of the DAP specification.
And each one adds other features that aren't part of the DAP specification
(e.g., THREDDS adds the THREDDS catalog system, ERDDAP adds Make-A-Graph).
So each server is has a common core (DAP) and parts that are different.

Names like OPeNDAP:HYRAX are great because they say both:

• This is a DAP server (so if I have a DAP client library, I can get data
  from this server).
• Specifically, this is a HYRAX server. So if I have a choice, and if I
  like some specific extra feature offered by HYRAX, I might prefer this
  server.

"OPeNDAP" alone, or "HYRAX" alone doesn't convey that information.

On Tue, Sep 27, 2016 at 8:27 AM, Tom Kralidis notifications@github.com
wrote:

@BobSimons https://github.com/BobSimons thanks for the clarification.
If this means that a Hyrax server is just an OPeNDAP instance then I would
propose we remove. Thoughts?

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Sincerely,

Bob Simons
IT Specialist
Environmental Research Division
NOAA Southwest Fisheries Science Center
99 Pacific St., Suite 255A (New!)
Monterey, CA 93940 (New!)
Phone: (831)333-9878 (New!)
Fax: (831)648-8440
Email: bob.simons@noaa.gov

The contents of this message are mine personally and
do not necessarily reflect any position of the
Government or the National Oceanic and Atmospheric Administration.
<>< <>< <>< <>< <>< <>< <>< <>< <><

[tomkralidis]

@BobSimons thanks for the helpful clarification. OK.