> Yuan: > > So, am I to assume that all the other fields are either hr 0 or hr > 3, but the 3-hour accumulation is hr 3? > Jim, I would say most other fields are either 0 hr or 3 hr, there may be other time interval parameters in the list which I don't know much. > In some respects, I see John's point. However, it is a bit odd to > mix and match in this way (of course, you could also say asking for 3-h > precip at an analysis time is also odd, but it is the only way I think I > can get it during the forecast cycle). I see now that there are a > variety of time-matching challenges at the IDV-THREDDS interface. > However, I do need to point out again that there is a a critical need to > be able to plot in the legend what model run and analysis/forecast hour > is being plotted in each frame. If that were done, users would at least > know what they are looking at. I was told It is in their plan to make this available in the netCDF-Java 4.6 library and hopefully we can deliver this to the IDV users asap. I am truly sorry for delayed. Yuan > > Normally I would say that I hope the THREDDS and IDV teams can > make progress on this issue, but that suggests it is not a high priority > item. In my view, it *is* a high priority item because it is essential > for a scientist or forecaster to know what they are looking at. Right > now, all we know is that we're looking at grids from Model X or Model > Y. This is especially important in situations when model grids might > not have come in. > > Jim > > > > On 2/12/15 10:51 AM, Unidata IDV Support wrote: > > Jim, > > The parameter of 3-hour accumulated precipitation is very unique in > > the BST, it is so called time interval variable. > > John believes it is better to use previous run value for the current run 0 > > hour. Otherwise, the it is difficult to find the physical > > meaning of 0 hour value for the parameter of 3-hour accumulated > > precipitation. > > > > Yuan > >> > > > Ticket Details =================== Ticket ID: XNQ-939998 Department: Support IDV Priority: Normal Status: Open
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