Re: Cyclonic Genesis and Track

From: Md Wahiduzzaman <wahid.ju_at_nyahnyahspammersnyahnyah>
Date: Sun Feb 24 2013 - 05:32:48 MST

Dear Carl

Thank you very much. I really appreciated your help. I would like to draw one more attention in the following -

1. How can I draw the line showing the cyclone category in terms of wind speed, pressure and time and finally legend with title? Please find the katrina track attachment (I would like to draw same katrina.) and also if i want to ignore those location where wind speed was less than 34 knots then how can i do that? (For example you can draw the track of Cyclone SIDR in 2007 and also inform me how can I include in the script for the all cyclone in 2007 NI ocean or one/two/three whatever I like)

It'll help if you just modify the previous script and send me back. I really need it. Thanks in advance again. cheers
-Mohammad

On 22/02/2013, at 10:48 PM, Carl Schreck wrote:

> Hi Mohammad,
>
> Attached is a sample script that plots the tracks for 1 year. You should be able to edit it to plot other years or do some of the other tasks you want to do.
>
> A few notes on IBTrACS...
>
> - In my script, I use the wmo subset, which is much easier to work with as there is only one track for each storm. The version you were using has tracks from all available data sources.
> http://www.ncdc.noaa.gov/oa/ibtracs/index.php?name=wmo-data
>
> - For the NIO, the WMO data only go back to 1990. The ibtracs_all has JTWC and other archival sources that go back much further, but their quality may be more questionable.
>
> - You should be able to trim the tracks for the winds using the wind_wmo variable.
>
> - If you want to pick an individual storm, search for it in the file using the "storm_sn" variable. The serial number for the storm you're looking for can be found by browsing this page:
> http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=browse-location
> http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2007314N10093
>
> Hope this helps...
>
> Carl
>
>
> On Tue, Feb 19, 2013 at 9:45 PM, mdw4 <Md.Wahiduzzaman@utas.edu.au> wrote:
>
>
> Hello
>
>
> This is Mohammed. I'm a new user of NCL. I'll use NCL for my thesis. I would like to draw the cyclonic storm genesis point and their track over North Indian Ocean. I've used netcdf file. I can draw the genesis point (find the attached ps)but still don't know how to add the time as the data range from ibtracts is 1842-2011. I have attached few scripts and data for your consideration.
>
>
> My query:
> 1. How can I add the time range for example 1961-2011 and If I would like to ignore the data whose wind speed is less than 34 knots then how can i add ??
> 2. If I plot one year data then it shows the number of cyclone genesis points but how can i draw the points of each cyclone respect to day and hours basis for example genesis point of SIDR in 2007 from the data set?
> 3. How can I plot the cyclonic tracks over NIO and also for example one year like 1991 or specifically SIDR in 2007??
>
>
>
> I look foreword to hearing from you at your earliest opportunity.
>
>
> Cheers
> -Mohammad
>
>
>
>
>
>
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>
>
> --
> Carl J. Schreck III, PhD
> Cooperative Institute for Climate and Satellites (CICS-NC)
> North Carolina State University | NOAA's National Climatic Data Center
> Email: carl@cicsnc.org | Tel: 828-257-3140
> http://www.cyclonecenter.org/ | http://monitor.cicsnc.org/mjo/
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Received on Sun Feb 24 05:33:08 2013

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