[IDV #YTE-634929]: Questions about Avalanches, Scales Color, and NAM vs GFS precipitation analysis.

Hi-
 
> This a question for IDV Staff:
 
> Why for direct evaporation from soil or potential evporation from soil,
> the display units say in W/m2 units, if the real units is for example: 
> mm/m2xhr?

According to the WMO docs on the parameters, W/m2 is the correct unit:

http://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_table4-2-0-1.shtml

(parameter 200). In this case, they are looking at evaporation in terms of
energy per unit area.  Here's a web reference I found:

http://www.fao.org/docrep/x0490E/x0490e04.htm#units

that helps explain this.  I think that W/m2 is equivalent to mm/s since
precipitation and evaporation are generally in terms of kg/m2 (roughly
1 mm of water) and the s-1 would give you the rate.

Don Murray


> From: address@hidden
> To: address@hidden
> Subject: RE: [IDV #YTE-634929]: Questions about Avalanches, Scales Color, and 
> NAM vs GFS precipitation analysis.
> Date: Fri, 27 Mar 2009 10:35:48 -0600
> 
> 
> 
> Dear Jeff
> 
> Hello
> 
> Thanks for your help and support.
> 
> Nextly I will  teach a    workshop related with the interaction between Soil 
> and Atmpsphere and the "Water Runoff"
> fo rto  support the activities of civil protection offices, with the IDV 
> soft.,  I am attacheing  for you a Pdf.
> 
> Thanks again for your support and God Bless you always and all the IDV staff 
> too.
> 
> Sincerly Ing. Luis Felipe Ayala Soto
> 
> 
> 
> > To: address@hidden
> > Subject: [IDV #YTE-634929]: Questions about Avalanches, Scales Color, and 
> > NAM vs GFS precipitation analysis.
> > Date: Wed, 11 Mar 2009 17:01:10 -0600
> > CC: address@hidden
> > From: address@hidden
> >
> > > Dear:
> > > Don Murray
> > >
> > > Hello.
> > Hi,
> > THis is Jeff not Don.
> >
> > >
> > > Questiosn about IDV software.
> > >
> > > 1.I think, I have seen in the version of the Software IDV2.6 of December 
> > > 24, 2008, the product of snow avalanches, and versions of the January 24, 
> > > and February 13, 2009, and did not find that information product.
> > >
> > > Does the product information of snow avalanches in the latest versions of 
> > > software IDV2.6u2, exist?
> > >
> > The IDV does not provide data itself. We just access data on remote 
> > servers. If some data sets are missing
> > on the servers you should contact the data provider.
> >
> > > 2 .- How can I add the color range of the scale of the property of the 
> > > the information product is measured and requiered, eg temperature, in 
> > > each of the display of images, eg Google Earth, or other types of 
> > > products images visualizacióm?
> > >
> > >
> > Bring up the Properties dialog for the particular display and go to the 
> > Color Scale tab:
> > http://www.unidata.ucar.edu/software/idv/docs/userguide/controls/index.html#properties
> >
> >
> >
> > > 3.- The new versions of od IDV2.6u2, do not have the NAM vs GFS 
> > > precipitation analysis. How can I to involve this information product, in 
> > > the new software IDV2.6u2 versions?
> > >
> > >
> > Again, we just provide access to remote data. If something is missing 
> > please contact the data provider.
> >
> > -Jeff
> >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: YTE-634929
> > Department: Support IDV
> > Priority: Normal
> > Status: Closed
> >
> 
> 
> 
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Ticket Details
===================
Ticket ID: YTE-634929
Department: Support IDV
Priority: Normal
Status: Open