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Re: 20010213: Archive area files?




 
Chris,
 
The images you have are "raw" images. That is, there is no calibration
block. So, using the default color enhancement table make things
look like they are inverted.
 
I attatched an inverted lut table to this message that you can place in
$GEMTBL/luts (called invgray.tbl).

To add this table to the list of gempak enhancements in nsat and nmap,
add this invgray name to $NAWIPS/tables/nsat/enhance.tbl and
$GEMTBL/luts/enhance.tbl. For garp, add to $GARPHOME/tables/sat_enhance.tbl.

 
Steve Chiswell
Unidata User SUpport



> 
> >From: address@hidden (Chris Herbster)
> >Organization: UCAR/Unidata
> >Keywords: 200102131816.f1DIGsL18220
> 
> >
> >
> >We obtained some archive images from NASA from the CAMEX-3 experiment 
> >(http://wwwghrc.msfc.nasa.gov/uso/readme/GOES8.html).  The images are 
> >supposed to be Mcidas area files, but we are having trouble getting them 
> >to view properly in either NSAT or GARP, while I'm still trying to 
> >figure out how to load the images in Mcidas.  When we open them in NSAT 
> >we can see some resemblance of the anticipated data, but certainly not 
> >what we were expecting.
> >
> >Some sample images can be found at:
> >ftp://opwx.db.erau.edu/pub/faculty/herbster/areafiles/
> >
> >
> >Could someone please help me to:
> >1) determine if these are valid area files
> >2) properly decode/view the images in any/all of GARP, NSAT, and/or 
> >McIDAS
> >
> >Thanks to anyone who can help!!!!
> >
> >Chris Herbster
> >
> >===============================================================
> >
> >Dr. Christopher G. Herbster
> >Assistant Professor
> >Applied Aviation Sciences
> >Embry-Riddle Aeronautical Univ. 
> >600 S. Clyde Morris Blvd.
> >Daytona Beach, FL 32114-3900
> >
> >904.226.6444 voice
> >904.226.6446 Weather Center
> >904.226.6012 fax
> >
> >address@hidden  
> >     [ Note: no "r" at end, but "c" for first initial ]
> >also, the generic should work:
> >address@hidden
> >
> 
> 
! invgray.tbl
!
! Inverted linear 128 gray scale table  
!
!Color name    Abrev   Red  Green   Blue  X color name
                       255    255    255 
                       253    253    253 
                       251    251    251 
                       249    249    249 
                       247    247    247 
                       245    245    245 
                       243    243    243 
                       241    241    241 
                       239    239    239 
                       237    237    237 
                       235    235    235 
                       233    233    233 
                       231    231    231 
                       229    229    229 
                       227    227    227 
                       225    225    225 
                       223    223    223 
                       221    221    221 
                       219    219    219 
                       217    217    217 
                       215    215    215 
                       213    213    213 
                       211    211    211 
                       209    209    209 
                       207    207    207 
                       205    205    205 
                       203    203    203 
                       201    201    201 
                       199    199    199 
                       197    197    197 
                       195    195    195 
                       193    193    193 
                       191    191    191 
                       189    189    189 
                       187    187    187 
                       185    185    185 
                       183    183    183 
                       181    181    181 
                       179    179    179 
                       177    177    177 
                       175    175    175 
                       173    173    173 
                       171    171    171 
                       169    169    169 
                       167    167    167 
                       165    165    165 
                       163    163    163 
                       161    161    161 
                       159    159    159 
                       157    157    157 
                       155    155    155 
                       153    153    153 
                       151    151    151 
                       149    149    149 
                       147    147    147 
                       145    145    145 
                       143    143    143 
                       141    141    141 
                       139    139    139 
                       137    137    137 
                       135    135    135 
                       133    133    133 
                       131    131    131 
                       129    129    129 
                       126    126    126 
                       124    124    124 
                       122    122    122 
                       120    120    120 
                       118    118    118 
                       116    116    116 
                       114    114    114 
                       112    112    112 
                       110    110    110 
                       108    108    108 
                       106    106    106 
                       104    104    104 
                       102    102    102 
                       100    100    100 
                        98     98     98 
                        96     96     96 
                        94     94     94 
                        92     92     92 
                        90     90     90 
                        88     88     88 
                        86     86     86 
                        84     84     84 
                        82     82     82 
                        80     80     80 
                        78     78     78 
                        76     76     76 
                        74     74     74 
                        72     72     72 
                        70     70     70 
                        68     68     68 
                        66     66     66 
                        64     64     64 
                        62     62     62 
                        60     60     60 
                        58     58     58 
                        56     56     56 
                        54     54     54 
                        52     52     52 
                        50     50     50 
                        48     48     48 
                        46     46     46 
                        44     44     44 
                        42     42     42 
                        40     40     40 
                        38     38     38 
                        36     36     36 
                        34     34     34 
                        32     32     32 
                        30     30     30 
                        28     28     28 
                        26     26     26 
                        24     24     24 
                        22     22     22 
                        20     20     20 
                        18     18     18 
                        16     16     16 
                        14     14     14 
                        12     12     12 
                        10     10     10 
                         8      8      8 
                         6      6      6 
                         4      4      4 
                         2      2      2 
                         0      0      0