bilbobaggins
- Joined
- 12 Feb 2005
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- Grey Havens Marina - Elves pontoon
Mac Os X Snow Leopard For Vista
HOME MonitoringandData Oceanic and Atmospheric Data Reanalysis: Atmospheric Data WGRIB: wgrib. WGRIB is a program to manipulate, inventory and decode GRIB files. The program is known to work on machines ranging from 486s to Cray supercomputers. Download the Sonos app for iOS, Android, FireOS, Windows, and macOS.
Ugrib Mac Download Software
'After a successful ( second ) installation, data selection and download - with the 'successful download looking GOOD' popup - a further grey popup indicated 'The file contains valid GRIB data but has some invalid or missing information. The data may still be useable but the file should be treated with caution. Click 'OK' to continue opening the file or 'Cancel' to stop further processing. 'OK'.
Despite following the admin's advice elsewhere in this forum - unchecking the 'verify file after download' box - no downloaded file could be made to open. The errorlog.txt file contained no data other than the legend 'UGRIB error log'.
I was an early adopter and the facility worked fine, initially. This problem occurred and I eventually uninstalled the program. This is the same issue, recurring, with no apparent means of resolution.
Yes, I have unchecked the 'verify the file after download' box, without change or success.'
Anyone have an idea what the issue might be? /forums/images/graemlins/frown.gif
The http protocol allows 'random access' reading;however, that means that we need an index file and a httpprogram that supports random access. For the index file, wecan modify a wgrib2 inventory. For the random-access http(s) program, wecan use cURL. Both are freelyavailable, widely used, work on many platforms and are easilyscripted/automated/put into a cronjob.
The basic format of the quick download is,
get_inv.pl INV_URL | grep (options) FIELDS | get_grib.pl GRIB_URL OUTPUT
INV_URL is the URL of a wgrib/wgrib2 inventory
ex. https://nomad3.ncep.noaa.gov/pub/gfs/rotating/gblav.t00z.pgrbf12.inv
grep (options) FIELDS selects the desired fields (wgrib compatible)
ex. grep -F ':HGT:500 mb:' selects ':HGT:500 mb'
ex. grep -E ':(HGT|TMP):500 mb:' selects ':HGT:500 mb:' and ':TMP:500 mb:'
GRIB_URL is the URL of the grib file
ex. https://nomad3.ncep.noaa.gov/pub/gfs/rotating/gblav.t00z.pgrbf12
OUTPUT is the name of the for the downloaded grib file
The 'get_inv.pl INV_URL' downloads the wgrib inventory off the net and addsa range field. The 'grep FIELDS' uses the grep command to select desiredfields from the inventory. Use of the 'grep FIELDS' is similar to theprocedure used when using wgrib/wgrib2 to extract fields. The 'get_grib.plGRIB_URL OUTPUT' uses the filtered inventory to select the fieldsfrom GRIB_URL to download. The selected fields are saved in OUTPUT.