>From: address@hidden >Organization: GMU >Keywords: 200407121849.i6CIntaW003204 ldm-mcidas pnga2area ROUTE.SYS ldmd.conf Ying >I can use ldm to download satellite succefully, but can not get any radar >data. the ldm-mcidas.log file indicates things like: > >Jul 12 17:28:02 pnga2area[10667]: Starting Up >address@hidden 12 17:28:02 pnga2area[10667]: Error opening routing table: No >such file > or directory >address@hidden 12 17:28:02 pnga2area[10667]: output file pathname: >data/mcidas/AREA1241 >address@hidden 12 17:28:02 pnga2area[10667]: unPNG:: 1029372 2439056 2.3695 >address@hidden 12 17:28:02 pnga2area[10667]: Exiting >address@hidden 12 17:29:08 pnga2area[10668]: Starting Up >address@hidden 12 17:29:08 pnga2area[10668]: Error opening routing table: No >such file > or directory >address@hidden 12 17:29:08 pnga2area[10668]: output file pathname: >data/mcidas/AREA1251 >address@hidden 12 17:29:09 pnga2area[10668]: unPNG:: 950410 2439056 2.5663 >address@hidden 12 17:29:09 pnga2area[10668]: Exiting The log output indicates that data is being decoded and apparently written into ~ldm/data/mcidas/AREA1241, ~ldm/data/mcidas/AREA1251, etc. Those images, however, are not ones from the FNEXRAD feed, but, rather they are IR images from the Unidata-Wisconsin (IDD feed type UNIWISC aka MCIDAS) datastream. >part of the pqact.conf is like: > >#### PNG compressed FNEXRAD image (AREA) files ># > ># NEXRCOMP 6 km National BREF mosaic >FNEXRAD ^pnga2area Q5 (RL) (.*) (.*) (.*) (.*) (........) (....) > PIPE -close > pnga2area -vl logs/ldm-mcidas.log > /usr/local/ldm/data/gempak/nexrad/NEXRCOMP/6KN0R-NAT/\4_\6_\7 > ># NEXRCOMP 10 km National RCM mosaic >FNEXRAD ^pnga2area Q5 (RN) (.*) (.*) (.*) (.*) (........) (....) > PIPE -close > pnga2area -vl logs/ldm-mcidas.log > /usr/local/ldm/data/gempak/nexrad/NEXRCOMP/10KRCM-NAT/\4_\6_\7 > ># NEXRCOMP 1 km Regional BREF mosaic >FNEXRAD ^pnga2area Q5 (RO) (.*) (.*) (.*) (.*) (........) (....) > PIPE -close > pnga2area -vl logs/ldm-mcidas.log > /usr/local/ldm/data/gempak/nexrad/NEXRCOMP/1KN0R-FLT/\4_\6_\7 > ># >#### PNG compressed FNEXRAD image (GINI) files ># > ># NEXRAD Level III radar composites in PNG-compressed GINI format >FNEXRAD ^rad/NEXRCOMP/(...)/(...)_(........)_(....) > PIPE -close > pngg2gini -vl logs/ldm-mcidas.log > /usr/local/ldm/data/gempak/nport/RADAR/\1/\2/\2_\3_\4 These actions are OK. >1) What should the routing table be? Is it ROUTE.SYS? Yes, the routing table is ROUTE.SYS. It needs to be copied to the directory where pnga2area is writing output images if and when the decoding action is using the '-r \1,\2\' flag to pnga2area. Since your actions for FNEXRAD data do not use this flag, you do not need to copy ROUTE.SYS to ~ldm/data/gempak/nexrad/NEXRCOMP/... You should, however, copy it to ~ldm/data/mcidas along with ~mcidas/data/SYSKEY.TAB. Also, you should make sure that the file permissions on ROUTE.SYS and SYSKEY.TAB are such that the user running the LDM (presumably 'ldm') and the McIDAS account (if you are using McIDAS) have write permission on the file. If you are not using McIDAS, then it means that you would have copies of ROUTE.SYS and SYSKEY.TAB from the ldm-mcidas distribution. >2) How come the files like AREA1241 are generated? You have a pqact.conf action that is running the ldm-mcidas pnga2area decoder on Unidata-Wisconsin imagery, and that action(s) is using the '-r \1,\2' flag. >3) How can I fix this problem? I suspect that you are not requesting all of the FNEXRAD data, or the upstream host that you are requesting it from does not have the images that you want. Your ldmd.conf action for getting all FNEXRAD products should look like: request FNEXRAD ".*" upstream_feed_host If your request looks like this, then you can check to see if you are getting hte images using notifyme: <as ldm> notifyme -vxl- -f FNEXRAD -o 10000 -p pnga2area You should see headers that look like: Jul 12 23:15:42 notifyme[85885]: da126022ba139c85302ee82ff90ec57f 12906 20040712224048.291 FNEXRAD 000 pnga2area Q5 RN 500 RADAR BREF 10km 20040712 2219 Jul 12 23:15:42 notifyme[85885]: 80592c63d1065f79ecb74933768a7a90 65072 20040712224142.993 FNEXRAD 000 pnga2area Q5 RL 300 RADAR BREF 6km 20040712 2235 Jul 12 23:15:42 notifyme[85885]: 86b208f3f57a931ea49f03ed50e7458f 80436 20040712224146.399 FNEXRAD 000 pnga2area Q5 RO 400 RADAR BREF 1km 20040712 2236 If you don't see headers like this, you are not receiving the images, so the problem may be that you are not requesting them or the site you are requesting from does not have them. Next, check the upstream host using notifyme again: notifyme -vxl- -f FNEXRAD -o 10000 -p pnga2area -h upstream_feed_host >Thank you very much and have a good day, Cheers, Tom Yoksas -- NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publically available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.