[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[netCDFJava #JDB-235822]: Fwd: non-standard calendars in the IDV

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [netCDFJava #JDB-235822]: Fwd: non-standard calendars in the IDV
  • Date: Mon, 08 Oct 2012 14:02:44 -0600
Hi Don,

Not being a climate guy I'm wondering what it means to convert a date/time from 
a calendar that tries to accurately model reality (e.g., Gregorian calendar) to 
a calendar that models a simplified reality (e.g., 360-day calendar). Then 
again, I guess at some point you have to think about how the climate models map 
to "real" time.

However, I would think you'd want a continuous mapping. Doesn't the 
"360-date/time --> string --> Gregorian-date/time" mapping contain a number of 
discontinuities each year.

Perhaps deciding on a mapping is something best left to the user?

Ethan

Don Murray wrote:
> I don't think my previous solution will work.  However, I would think
> that it would be useful to convert a CalendarDate to a corresponding
> Date object that would reference the same "time" (year, month, day,
> hours, minutes, seconds, milliseconds) as the CalendarDate.  The
> approach I've taken in the IDV is to convert the CalendarDate to a
> String and parse the String back to a Date.  I realize it doesn't allow
> you go do math, etc, but it's a way of converting from one calendar to
> another.
> 
> Don


Ticket Details
===================
Ticket ID: JDB-235822
Department: Support netCDF Java
Priority: Urgent
Status: Open