HYSPLIT Forum: hysplitbbs.arl.noaa.gov

In online HYSPLIT Trajectory Model there is Level 1 height: with two options Meters AGL and meters AMSL. My question is what is the basic model height if I choose 200m AGL? My station altitude is 331m AMSL, so actually at what height the trajectories will get calculated? and what vl be the actual he...

I would like to know that whether I can get any data regarding stability class (A, B, C, D, E, F, & G) for my respective site with the help of HYSPLIT. please help me regarding this data.


Thank you sir.

hellow johna,
ventilation coefficient is a product of mixing layer height and horizointal wind speed with in the BLH. you can get mixing layer height from HYSPLIT and with the help of any AWS near by your station you can get Wind speed... thats all yours...

Is this boundary layer height represented from this data is from Above mean sea level (amsl)? if yes, how can i get that height for my site elevation 331m amsl?

thank you sir

Is there any possible to download meteorological data file of GDAS one degree file from HYSPLIT home web page, rather than downloading from HYSPLIT 4 application. to run in HYSPLIT 4... It is taking more time to download from application...
please respond positively
thank you

thanks alot for your kind information.... I got it...

I tried as u said, i used GDAS 0.5 degree met data, in profile text, am getting only offset hours of 0,2,3,6,12,24,48 hours only... but how could i get offset for 9,15,18 hours..? if i use GDAS 1 degree which is a week data, can i get daily with three hour interval of PBLH? please suggest me soon si...

How can i calculate boundary layer height using hysplit data? Is there any possibility to do so? if not so how can i get PBL height to a specific locaiton... pleas suggerst me..

Dear sir,I am a researcher in a university (Andhra Pradesh, India). I used to download Hysplit reanalysis 7days back trajectory which help me in my research work. but the problem arise when am downloading data of 01-07-2015 reanalysis 7days back trajectory, which is not showing in the 'plot' as well...