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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
Robert, besides looking for SNOW in surface reports, I've considered using the RUC hourly grids (like I do with the precip type products I create) to create a mask for precip based on something like RELH for the various boundary layer levels and/or PRXX and use the MASK function after the fact rather than excluding clear air at the start. I know other approaches using the ground clutter removal in the radar displays with distance to the radar center. Steve Chiswell >From: "Robert Mullenax" <address@hidden> >Organization: UCAR/Unidata >Keywords: 200111282046.fASKkfN29194 >Thanks, > >Also I have been trying to brainstorm on a way to incorporate >radars that are in clear-air mode in order to pick up snow, >while excluding those that have no precip. Obviously one >could search obs for reports of snow and then come up with >a way of including of including radars near those stations. >This would be especially useful for our campaigns in New Mexico >as snow is not uncommon there in April and November when we >are there. I was just wondering if you had any ideas..I know >you have enough to do, I just thought I'd see if you had >pondered that. The script you provide works very well >comparing the results to obs..expect of course where the >snow can only be picked up in ca mode. > >Thanks for the color file. > >Thanks, >Robert > > >>From: Unidata Support <address@hidden> >>To: Robert Mullenax <address@hidden> >>CC: address@hidden >>Subject: 20011127: GEMPAK coltbl.ptype >>Date: Wed, 28 Nov 2001 12:45:34 -0700 >> >> >From: Robert Mullenax <address@hidden> >> >Organization: UCAR/Unidata >> >Keywords: 200111272140.fARLeQN09688 >> >> >I wonder if you could send me your coltbl.ptype that >> >you use to make your precip-type composites. I could >> >do it, but why reinvent the wheel. >> > >> >Thanks, >> >Robert >> > >> >>I should include this in the tarfile. Here are the lines for the file: >>! COLTBL.PTYPE >>! >>! Default XWP and XW color table >>! >>!Color name Abrev Red Green Blue X color name >>BLACK BLA 0 0 0 black >>VANILLA VAN 255 228 220 bisque1 >>RED RED 255 0 0 red >>GREEN GRE 0 255 0 green >>BLUE BLU 0 0 255 blue >>YELLOW YEL 255 255 0 yellow >>CYAN CYA 0 255 255 cyan >>MAGENTA MAG 255 0 255 magenta >>BROWN BRO 139 71 38 sienna3 >>GRPBLUE GRP 16 78 139 DodgerBlue4 >>LTBLUE LTB 30 144 255 DodgerBlue1 >>SKY SKY 0 178 238 DeepSkyBlue2 >>MDCYAN MDC 0 238 238 cyan2 >>VIOLET VIO 137 104 205 MediumPurple3 >>RAIN1 R01 118 195 95 Rain1 >>RAIN2 R02 111 193 85 Rain2 >>RAIN3 R03 82 187 63 Rain3 >>RAIN4 R04 51 163 52 Rain4 >>RAIN5 R05 45 131 45 Rain5 >>RAIN6 R06 34 91 33 Rain6 >>FRZN1 F01 206 145 36 Frozen1 >>FRZN2 F02 209 132 33 Frozen2 >>FRZN3 F03 209 121 36 Frozen3 >>FRZN4 F04 208 112 33 Frozen4 >>FRZN5 F05 212 101 34 Frozen5 >>FRZN6 F06 211 93 35 Frozen6 >>SNOW1 G41 105 105 105 gray41 >>SNOW2 G53 135 135 135 gray53 >>SNOW3 G65 166 166 166 gray65 >>SNOW4 G77 196 196 196 gray77 >>SNOW5 G88 224 224 224 gray88 >>WHITE WHI 255 255 255 white >>BLACK BLA 0 0 0 black >> >> >>Steve Chiswell >>**************************************************************************** >>< >>Unidata User Support UCAR Unidata >>(303)497-8644 P.O. Box >>address@hidden Boulder, CO >>---------------------------------------------------------------------------- >>< >>Unidata WWW Service http://www.unidata.ucar.edu/ >>**************************************************************************** >>< > > >_________________________________________________________________ >Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp >