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Hi Eric, > Thank you very much for the detailed response. Your assistance is > appreciated. No worries. > Is there a resource anywhere that can tell me what exactly is in the > NIMAGE datastream and how how I would go about limiting the request if so > desired? The best way to do this is to use the LDM 'notifyme' utility to list out the products from the datastream desired. For instance, try the following: <as 'ldm'> notifyme -vxl- -f NIMAGE -o 3600 -h idd.cise-nsf.gov The listing will look something like: Jun 02 23:16:46 notifyme[22223] INFO: 7d9b7f7b1eb6246634aaecbce76b6761 42942 20080602222603.720 NIMAGE 54036 satz/ch1/GOES-12/SOUND-14.06/20080602 2146/EAST-CONUS/10km/ TIGE43 KNES 022146 Jun 02 23:16:46 notifyme[22223] INFO: 9d484df4f0bb770a1cd23f4a1f40a527 221520 20080602222603.746 NIMAGE 54037 satz/ch1/GOES-12/13.3/20080602 2215/EAST-CONUS/8km/ TIGE06 KNES 022215 Jun 02 23:16:46 notifyme[22223] INFO: 529bf1d4fadf457b11a042b95acbd261 82378 20080602222604.775 NIMAGE 54038 satz/ch1/GOES-12/SOUND-11.03/20080602 2146/EAST-CONUS/10km/ TIGE48 KNES 022146 Jun 02 23:16:47 notifyme[22223] INFO: e3764a6e831184ffc687bab2f153f2ad 122814 20080602222610.958 NIMAGE 10766191 satz/ch1/GOES-12/3.9/20080602 2215/PR-REGIONAL/4km/ TIGP04 KNES 022215 Jun 02 23:16:47 notifyme[22223] INFO: b3602a368e993961b8da9bd3c56d1a75 17758577 20080602222604.080 NIMAGE 54035 satz/ch1/GOES-12/VIS/20080602 2215/EAST-CONUS/1km/ TIGE01 KNES 022215 Jun 02 23:16:47 notifyme[22223] INFO: 75cbb3fe16508d163859dbb38c3b5edb 86440 20080602222613.385 NIMAGE 10766204 satz/ch1/GOES-12/WV/20080602 2215/PR-REGIONAL/4km/ TIGP05 KNES 022215 Jun 02 23:16:48 notifyme[22223] INFO: d62371b4955efaedae117f2dc56d6167 137756 20080602222630.061 NIMAGE 10766228 satz/ch1/GOES-12/IR/20080602 2215/PR-REGIONAL/4km/ TIGP02 KNES 022215 Jun 02 23:16:48 notifyme[22223] INFO: 3d38933d53e91dfbcd2398fad30f266c 34570 20080602222630.064 NIMAGE 10766229 satz/ch1/GOES-12/13.3/20080602 2215/PR-REGIONAL/8km/ TIGP06 KNES 022215 Jun 02 23:16:48 notifyme[22223] INFO: 7c340717caa7bff6e1b826cc0752e33c 2298750 20080602222629.457 NIMAGE 10766227 satz/ch1/GOES-12/VIS/20080602 2215/PR-REGIONAL/1km/ TIGP01 KNES 022215 Jun 02 23:16:48 notifyme[22223] INFO: 0f2b791d5c8bd1f7a23e49e0f2904e8c 167942 20080602222632.177 NIMAGE 10766272 satz/ch2/GOES-11/3.9/20080602 2216/AK-REGIONAL/8km/ TIGA04 KNES 022216 Jun 02 23:16:48 notifyme[22223] INFO: 875ab2145bd05e77f7c5fa9d51dddba0 17948 20080602222632.183 NIMAGE 10766273 satz/ch2/GOES-11/WV/20080602 2216/AK-REGIONAL/16km/ TIGA05 KNES 022216 Jun 02 23:16:49 notifyme[22223] INFO: 758e902c0fab262b23a3474cefd495b2 159394 20080602222632.205 NIMAGE 10766274 satz/ch2/GOES-11/IR/20080602 2216/AK-REGIONAL/8km/ TIGA02 KNES 022216 The product IDs for the NIMAGE datastream are pretty clear: GOES-12 -> GOES-East VIS -> visible image ( 0.65 um) 3.9 -> short wave IR ( 3.9 um) WV -> water vapor ( 6.[58] um) (depends on GOES-East vs GOES-West Ir -> thermal IR (10.7 um) 13.3 -> long wave IR (13.3 um) etc. One ~ldm/etc/ldmd.conf request for GOES-East VIS images only would look like: request NIMAGE "GOES-12/VIS" upstream.feed.host There are others that would also work depending on which products you want. Use the '-p' (pattern) flag on 'notifyme' to test your patterns: notifyme -vxl- -f NIMAGE -o 3600 -h idd.cise-nsf.gov -p 'GOES-12/VIS' Refine the pattern value to get just the set of images you want and then use that pattern in the ~ldm/etc/ldmd.conf request line. After making the addition/change to ldmd.conf, you will need to stop and restart your LDM for the change to take effect. re: which package will you be using > This is going to be used primarily with garp, so I guess gempak is the > software package of choice. I believe that is the only software package > that will be needed so keeping the data compressed should not be an issue. OK. You should be aware that GEMPAK has a script that can be run to generate ldmd.conf and pqact.conf entries. Please review the GEMPAK HomePage for details: Unidata HomePage: http://www.unidata.ucar.edu GEMPAK HomePage http://www.unidata.ucar.edu/software/gempak Site Configuration for Products http://www.unidata.ucar.edu/software/gempak/GEMPAK/configuration.html > Thanks again, No worries. Cheers, Tom **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: SJH-789523 Department: Support IDD Priority: Normal Status: Closed