help needed using mixed resolutions meteo files
Posted: July 18th, 2019, 11:01 am
Dear HYSPLIT forum,
I'd like to run backtrajectories starting in the period 28 Feb - 2 Mar 2012
using GDAS p05 meteo files. Unfortunately, the file 20120301_gdas0p5
is missing. As in similar cases in the past, I downloaded the p1
(gdas1.mar12.w1) since HYSPLIT can use mixed grids. This time,
however, hyts_std refuses to start giving the usual error:
*ERROR* metpos: start point not within (x,y,t) any data file
- start time before start of meteorology data
- start time after end of meteorology data
The CONTROL file has 12 02 29 22 as the starting time and the
list of all the needed meteo files starting with 20120301_gdas0p5,
20120229_gdas0p5, 20120228_gdas0p5 (note that I symbolic link
the 20120301_gdas0p5 to the gdas1.mar12.w1).
The chk_info utility gives
File start time: 12 3 1 0 0
File ending time: 12 3 7 21 0
Last record number : 9184
Record length bytes: 65210
Meteo data model : GDAS
Grid size x,y,z : 360 181 24
for gdas1.mar12.w1 and
*WARNING*: metini - vertical velocity missing, switching to divergence
Input data file: 1 1 GHDA
File start time: 12 2 29 0 0
File ending time: 12 2 29 21 0
Last record number : 1888
Record length bytes: 259970
Meteo data model : GHDA
Grid size x,y,z : 720 361 56
Vertical coordinate: 4
First forecast hour: 0
Last forecast hour : 3
Records per time : 236
Minutes between : 180
for 20120229_gdas0p5.
I also tried to substitute gdas1.feb12.w5 to the 20120229_gdas0p5
and the trajectory is propagated but just for one day.
I am starting to think that there might be some incompatibility
between GHDA and GDAS meteo files.
Could you please help me?
Thanks in advance. Regards
Stefano
I'd like to run backtrajectories starting in the period 28 Feb - 2 Mar 2012
using GDAS p05 meteo files. Unfortunately, the file 20120301_gdas0p5
is missing. As in similar cases in the past, I downloaded the p1
(gdas1.mar12.w1) since HYSPLIT can use mixed grids. This time,
however, hyts_std refuses to start giving the usual error:
*ERROR* metpos: start point not within (x,y,t) any data file
- start time before start of meteorology data
- start time after end of meteorology data
The CONTROL file has 12 02 29 22 as the starting time and the
list of all the needed meteo files starting with 20120301_gdas0p5,
20120229_gdas0p5, 20120228_gdas0p5 (note that I symbolic link
the 20120301_gdas0p5 to the gdas1.mar12.w1).
The chk_info utility gives
File start time: 12 3 1 0 0
File ending time: 12 3 7 21 0
Last record number : 9184
Record length bytes: 65210
Meteo data model : GDAS
Grid size x,y,z : 360 181 24
for gdas1.mar12.w1 and
*WARNING*: metini - vertical velocity missing, switching to divergence
Input data file: 1 1 GHDA
File start time: 12 2 29 0 0
File ending time: 12 2 29 21 0
Last record number : 1888
Record length bytes: 259970
Meteo data model : GHDA
Grid size x,y,z : 720 361 56
Vertical coordinate: 4
First forecast hour: 0
Last forecast hour : 3
Records per time : 236
Minutes between : 180
for 20120229_gdas0p5.
I also tried to substitute gdas1.feb12.w5 to the 20120229_gdas0p5
and the trajectory is propagated but just for one day.
I am starting to think that there might be some incompatibility
between GHDA and GDAS meteo files.
Could you please help me?
Thanks in advance. Regards
Stefano