RE: [las_users] time format and type in DRDS service

[Jerome King <jejeking@xxxxxxxxxxx>]

Hi Roland,

Yes. It's a public OPeNDAP.
I copy and pasted below the configuration xml file for this dataset.
Thanks for your help on this.
Jerome.


<datasets>
  <coral
    name = "1980 - 2005 Coral Survey NWIOOS"
    url = ""
    doc = "">

    <properties><ui>
      <default>file:ui.xml#nwioos_demo</default>
    </ui>

    <database_access name="nwioos_drds">
      <db_type>drds</db_type>
      <db_server>NWIOOS Server</db_server>
      <db_name>Coral Survey</db_name>
      <db_title>Coral Survey</db_title>
      <db_host>localhost</db_host>
      <db_table>coral</db_table>
      <longitude>longitude_dd</longitude>
      <lon_domain>-180:180</lon_domain>
      <latitude>latitude_dd</latitude>
      <!--<depth>Z</depth>
      <depth_units>meters</depth_units>-->
      <time>year_survey</time>
      <time_type>double</time_type>
      <time_units>years since 1980-01-01 00:00:00</time_units>
      <time_format>yyyy.0</time_format>
      <hours_1970></hours_1970>
      <missing>-9999.0</missing>
      <positive>down</positive>
    </database_access>

    </properties>

    <variables>
      <scientific_name units="m/sec" name="Scientific name of taxa" url="">
        <link match="/lasdata/grids/scientific_grid"/>
      </scientific_name>
      <!--<hake_05_nv units="m/sec" name="Northward Velocity" url="">
        <link match="/lasdata/grids/hake_05_grid"/>
      </hake_05_nv>-->
    </variables>
  </coral>
</datasets>

<grids>
  <scientific_grid>
    <link match="/lasdata/axes/scientific_x"/>
    <link match="/lasdata/axes/scientific_y"/>
 <!--   <link match="/lasdata/axes/scientific_depth"/>-->
    <link match="/lasdata/axes/scientific_time"/>
  </scientific_grid>
</grids>

<axes>
  <scientific_y units="degrees_north" type="y">
    <arange start="15" step="1" size="60"/>
  </scientific_y>
  <scientific_x units="degrees_east" type="x">
    <arange start="180" step="1" size="75"/>
  </scientific_x>
  <!--<hake_05_depth units="meters" type="z">
    <arange start="22" step="8" size="60"/>
  </hake_05_depth>-->
  <scientific_time type="t" units="month">
   <arange start="1980-01-01" step="12" size="25"/>
  </scientific_time>
</axes>

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Date: Tue, 26 Aug 2008 09:51:46 -0500
From: Roland.Schweitzer@xxxxxxxx
Subject: Re: [las_users] time format and type in DRDS service
To: jejeking@xxxxxxxxxxx
CC: oar.pmel.las_users@xxxxxxxx

Hi Jerome,

If this is a public OPeNDAP server can you please send an example configuration for this data set to the list?  I'll take a look at it.

Roland

Jerome King wrote:

Hi LAS experts,

I am trying to serve an OPeNDAP DRDS dataset on LAS.

I have been following the NWIOOS example. The trick with this dataset is that "time" is of type "float64" and the format is YYYY.0
Unfortunately I am not the person serving this dataset on OPeNDAP so I can't go change the time type and format to something more standard. This is unfortunate because I know I would be able to get it to work if time was of type 'int' and format 'yyyy'.

So this is how I set up the drds parameters in my config file:

<time>year</time>
<time_type>double</time_type>
<time_units>years since 1949-01-01 00:00:00</time_units>
<time_format>yyyy.0</time_format>

I also tried 'yyyy' and 'yyyy.y' for the time_format with no success.
In the LAS documentation, it's not clear to me if <time_format> needs to be used with time type "double" or not and what syntax to use.

So I am wondering if someone see what I am missing or what I am doing wrong.
I have had success with other datasets where 'time' is of type "int" or "string".

Thanks for any help on this.
Jerome.
 

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