Search found 5 matches

by tianshui
December 30th, 2013, 11:40 am
Forum: Conversion programs
Topic: gdas0p5 data
Replies: 2
Views: 1645

Re: gdas0p5 data

Thanks very much!
by tianshui
December 29th, 2013, 10:15 am
Forum: Conversion programs
Topic: gdas0p5 data
Replies: 2
Views: 1645

gdas0p5 data

When I use the gdas0p5,55 levels.In the info.txt says 55 hybrid sigma-pressure Levels ----------------------------------------------------------------------- 0.9999, 0.9947, 0.9886, 0.9817, 0.9739, 1.9648, 1.9544, 2.9425, 4.9288, 6.9132, 8.8954, 11.875, 16.853, 21.827, 26.799, 33.769, 41.735, 49.699...
by tianshui
December 22nd, 2013, 9:11 am
Forum: Cluster Analysis
Topic: cluster techniques
Replies: 3
Views: 6048

Re: cluster techniques

Thank you for your answer.
May ask you another question.I use the HYSPLIT calculate the trajectory with the GDAS data,it has a variable mixed depth layer(MIXDEPTH).Is it the PBL(Planetary boundary layer height) of the GDAS data?If not,what the different between them?
by tianshui
November 25th, 2013, 9:52 am
Forum: Cluster Analysis
Topic: cluster techniques
Replies: 3
Views: 6048

cluster techniques

Which cluster technique does the hysplit model use ?K_means algorithm /self-organizing maps?Or which does it like?
by tianshui
September 4th, 2013, 4:39 am
Forum: General questions on meteorological data needed for HYSPLIT
Topic: Detail description of ARL packed meteorological data format
Replies: 4
Views: 2521

Re: Detail description of ARL packed meteorological data for

The description of the ARL packed data format is in the PC HYSPLIT help file. A pdf of the file is attached here. if I want to write a ARL packed data,is there a fortran code? What is the totating checkusm of the packed data meaning? 5PRSS 13 T02M 2 U10M 86 V10M 86 TPP6 84 1000.0 6HGTS189 TEMP 47 U...