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Steve, The colorbar scale is brightness values (eg the BRIT label). Those are the data values in the image (eg, the imager senses radiative brightness at ~6.7 microns). No calibration is provided in the image, so the color bar is just the range of data. It is not hardcoded other than the fact that the $GEMTBL/sat/imgtyp.tbl provides a range of 0 to 255 for this 8 bit image product. Steve Chiswell Unidata User Support On Thu, 2006-06-08 at 17:38, Steven Businger wrote: > Steve, > > I would appreciate your thoughts on a problem we are having with > incorrect labeling of the color coded scales in GEMPAK. I seems that > the color bar attributes are hardcoded within gempak and are not > configurable within the program calls. Examples of the problem can > be found on our satellite page (link below) and clicking on e.g., the > WV images. > > http://weather.hawaii.edu/satellite/index.cgi? > satgroup=main&thumbs=on&banner=uhmet&overlay=off > > Thanks, Steven > > Begin forwarded message: > > > From: Ryan Lyman <address@hidden> > > Date: June 8, 2006 11:29:43 AM HST > > To: Steven Businger <address@hidden> > > Subject: Re: interpretation > > > > > > > > Steven, > > > > it appears that the color bar attributes are hardcoded within > > gempak and are not configurable within the program calls. each > > satellite file 'calibration type' within its header is dependent on > > its source, which can lead to different/inproper labeling. a bit > > odd...i know. > > > > ryan > > > > > > > > Steven Businger wrote: > > > >> Ryan, > >> I have had several inquiries lately regarding the scale on the WV > >> imagery, which I expect is due to the fact that it is mislabled. > >> A scan of the MKWC satellite page shows that a number of the IR > >> imagery scales are similarly mis labeled. Perhaps you can fix this? > >> Thanks, Steven > >> On Jun 6, 2006, at 12:52 PM, Department of Meteorology wrote: > >>> > >>> From: dickjanine <address@hidden> > >>> Date: June 6, 2006 10:45:39 AM HST > >>> To: address@hidden > >>> Subject: interpretation > >>> > >>> > >>> http://weather.hawaii.edu/satellite/satanim.cgi? > >>> chnl=uw8&domain=hus&banner=uhmet&satplat=goes10 > >>> > >>> > >>> please inform me as to the meaning of the colors in the above > >>> link. mahalo > >>> > >>> dick cohen > >>> > >>> > > > > -- > > > > ------------------------------------------------------- > > Ryan Lyman Mauna Kea Weather Center > > Institute for Astronomy Forecast Meteorologist > > 640 North A'ohoku Place Tel: (808) 932-2323 > > Hilo, Hawaii 96720-2700 Fax: (808) 933-0737 > > > > http://mkwc.ifa.hawaii.edu/ > > ------------------------------------------------------- > >