comparison failes for Yearly averaged data sets

[Zhangfan Xing <xing@xxxxxxxxxxxxxxxxxxxx>]

Hi, Jon,

I am having this new problem:
"comparison" fails for Yearly averaged data sets.

My yearly averaged data set is at
http://eyre.jpl.nasa.gov/las
"simulation (c20010701)" => "sea surface height (yearly mean)"

LAS will display for each year (specified as string) as "single variable".
But, if the "comparison" button is selected, LAS refuses to display
differeces to itself and to any other datasets. The error is:

Illegal region

You specified a time or depth value that is outside the region contained
by this dataset.
 
The yearly averaged dataset is available at
http://jpl.ecco-group.org/datasets/c20010701/
Check for a file called Have_yearly_mean.des.
Yes, it is defined as a collection of multiple netcdf files
in the same directory (./y????/Have_yearly_mean.cdf).

Thanks,

Zhangfan