Re: Cyclonic Genesis and Track

From: Carl Schreck <carl_at_nyahnyahspammersnyahnyah>
Date: Mon Feb 25 2013 - 09:21:06 MST

Hi Mohammad,

I believe my previous email, along with the examples on the NCL website,
should provide you with all the information you need to make such a plot.
Unfortunately, I don't have the time right now to do it myself, but I'd be
happy to answer any more specific questions you might have.

    Carl

On Sun, Feb 24, 2013 at 7:32 AM, Md Wahiduzzaman <wahid.ju@gmail.com> wrote:

> 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/
> <track_map.ncl><tracks.png>
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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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katrina_track.png
Received on Mon Feb 25 09:21:42 2013

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