<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "><div>OK, I'll take a look at correcting this. --Bob</div><div><br></div><span id="OLK_SRC_BODY_SECTION"><div style="font-family:Calibri; font-size:11pt; text-align:left; color:black; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt"><span style="font-weight:bold">From: </span> Roland Schweitzer <<a href="mailto:roland.schweitzer@noaa.gov">roland.schweitzer@noaa.gov</a>><br><span style="font-weight:bold">Date: </span> Thu, 16 Feb 2012 12:01:12 -0800<br><span style="font-weight:bold">To: </span> "<a href="mailto:go-essp-tech@ucar.edu">go-essp-tech@ucar.edu</a>" <<a href="mailto:go-essp-tech@ucar.edu">go-essp-tech@ucar.edu</a>><br><span style="font-weight:bold">Subject: </span> [Go-essp-tech] Time metadata in ESG published files...<br></div><div><br></div>Hi,<div><br>Bob, I think this is primarily addressed to you.</div><div><br></div><div>When looking at the data published at GFDL, I see what I think it a mistake in the time information that is in the THREDDS catalog.</div><div><br></div><div>With this URL: <a href="http://esgdata.gfdl.noaa.gov/thredds/esgcet/1/cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.v20110601.xml">http://esgdata.gfdl.noaa.gov/thredds/esgcet/1/cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.v20110601.xml</a></div><div><br></div><div>An aggregation looks like this:</div><div><br></div><div><div><font face="courier new,monospace"><dataset name="cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.ccb.20110601.aggregation" </font></div><div><font face="courier new,monospace"> ID="cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.ccb.20110601.aggregation" restrictAccess="esg-user"></font></div><div><font face="courier new,monospace"> <property name="aggregation_id" value="cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.ccb.20110601.aggregation"/></font></div><div><font face="courier new,monospace"> <variables vocabulary="CF-1.0"></font></div><div><font face="courier new,monospace"> <variable name="ccb" vocabulary_name="air_pressure_at_convective_cloud_base" units="Pa">Air Pressure at Convective Cloud Base</variable></font></div><div><font face="courier new,monospace"> </variables></font></div><div><font face="courier new,monospace"> <metadata inherited="true"></font></div><div><font face="courier new,monospace"> <geospatialCoverage></font></div><div><font face="courier new,monospace"> <northsouth></font></div><div><font face="courier new,monospace"> <start>-89.0</start></font></div><div><font face="courier new,monospace"> <size>178.0</size></font></div><div><font face="courier new,monospace"> <units>degrees_north</units></font></div><div><font face="courier new,monospace"> </northsouth></font></div><div><font face="courier new,monospace"> <eastwest></font></div><div><font face="courier new,monospace"> <start>1.25</start></font></div><div><font face="courier new,monospace"> <size>357.5</size></font></div><div><font face="courier new,monospace"> <units>degrees_east</units></font></div><div><font face="courier new,monospace"> </eastwest></font></div><div><font face="courier new,monospace"> </geospatialCoverage></font></div><div><font face="courier new,monospace"> <timeCoverage></font></div><div><font face="courier new,monospace"> <b><start>0001-01-16T12:00:00</start></b></font></div><div><font face="courier new,monospace"><b> <end>0140-12-16T12:00:00</end></b></font></div><div><font face="courier new,monospace"> </timeCoverage></font></div><div><font face="courier new,monospace"> </metadata></font></div><div><font face="courier new,monospace"> <access </font></div><div><font face="courier new,monospace"> urlPath="?catid=55B48299F30BC9828F9E93A18AFAA2FC_ns_cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.ccb.20110601.aggregation" </font></div><div><font face="courier new,monospace"> serviceName="LASatGFDL" dataFormat="NetCDF"/></font></div><div><font face="courier new,monospace"> <dataset name="cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.ccb.20110601.aggregation - Subset 1" </font></div><div><font face="courier new,monospace"> ID="cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.ccb.20110601.aggregation.1" </font></div><div><font face="courier new,monospace"> urlPath="cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.ccb.20110601.aggregation.1" restrictAccess="esg-user"></font></div><div><font face="courier new,monospace"> <serviceName>gridded</serviceName></font></div><div><font face="courier new,monospace"> <property name="aggregation_id" value="cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.ccb.20110601.aggregation.1"/></font></div><div><font face="courier new,monospace"> <property name="time_delta" value="1 month"/></font></div><div><font face="courier new,monospace"> <property name="calendar" value="noleap"/></font></div><div><font face="courier new,monospace"><b> <property name="start" value="1-1-1 0:0:0.0"/></b></font></div><div><font face="courier new,monospace"> <property name="time_length" value="1680"/></font></div><div><font face="courier new,monospace"> <access urlPath="?catid=55B48299F30BC9828F9E93A18AFAA2FC_ns_cmip5.output1.NOAA-GFDL.GFDL-CM3.1pctCO2.mon.atmos.Amon.r1i1p1.ccb.20110601.aggregation.1" </font></div><div><font face="courier new,monospace"> serviceName="LASatGFDL" dataFormat="NetCDF"/></font></div><div><font face="courier new,monospace"> </dataset></font></div><div><font face="courier new,monospace"></dataset></font></div></div><div><font face="courier new,monospace"><br></font></div><div><font face="arial,helvetica,sans-serif">The time coverage metadata has the correct start time for the aggregation (16-Jan-0001 12:00), but the extra property which LAS depends on to initialize itself the wrong start time (01-Jan-0001). This is causing many data sets to have their initial plot fail when LAS is started. The reason for the failure are complicated based on trying to find the closest time point in the data for the requested time (1-jan-0001) which turns out to be the previous month which does not exist.</font></div><div><font face="arial,helvetica,sans-serif"><br></font></div><div><font face="arial,helvetica,sans-serif">We can work on coding around this , but in the end I think f</font><span style="font-family: arial, helvetica, sans-serif; ">ixing the publisher to be more strict about what it puts as the value of the start property would be a big help to us.</span></div><div><font face="arial,helvetica,sans-serif"><br></font></div><div><font face="arial,helvetica,sans-serif">Roland</font></div><div><br></div><div><br></div><div><font color="#222222" face="arial,sans-serif"><span style="white-space:nowrap"><br></span></font></div></span></body></html>