[ncl-talk] CALIPSO L2 vdata

[Sunmin Park]

Thank you Wei I got the vdata. However, the example says I need edit the vdata and according to the script (calypso_3.ncl) at http://www.ncl.ucar.edu/Applications/calipso.shtml. 

Should I modify the vdata as same format as the example then save the file name as lidar_altitude.txt? 
I did used vdata instead of lidar_altitude.txt but It didn’t work.

Thank you in advance
Sun-  

 
On Dec 3, 2014, at 2:49 PM, Wei Huang <huangwei at ucar.edu> wrote:

> Using command:
> hdp dumpvd CAL_LID_L2_05kmAPro-Prov-V3-02.2013-01-31T23-42-01ZN_Subset.hdf > vdata 
> 
> You'll get the vdata.
> Attached is what I got by using this command.
> 
> Then check vdata 0. There you will get your LIDAR altitude.
> 
> Wei
> 
> 
> ================================================
> 1850 Table Mesa Dr.
> Boulder, CO 80307
> Phone: 303-497-8924
> 
> On Wed, Dec 3, 2014 at 3:26 PM, Sunmin Park <mireiyue at gmail.com> wrote:
> Dear NCL users
> 
> I have CALIPSO L2 data set and used hdp dumpvd to obtain data. I followed the example at NCL website (http://www.ncl.ucar.edu/Applications/calipso.shtml).  
> 
> hdp dumpvd CAL_LID_L2_05kmAPro-Prov-V3-02.2013-01-31T23-42-01ZN_Subset.hdf > vdata 
> 
> But still I cannot get the lidar_altitude.txt file in the example 3 at http://www.ncl.ucar.edu/Applications/calipso.shtml. Should I modify it myself in vdata? 
> 
> How I can get the altitude from CALIPSO L2 file (Attached files: CALIPSO L2 and vdata)?
> 
> ANY helps and comments will be appreciated.
> 
> Thank you in advance
> Sun-
> 
> 
> 
> 
> On Nov 25, 2014, at 10:45 AM, Wei Huang <huangwei at ucar.edu> wrote:
> 
>> Sun,
>> 
>> I have checked the file (which you put on our ftp site).
>> There are nothing related to "liar altitude".
>> 
>> You may try NCL script:
>>  flnm = "CAL_LID_L2_05kmAPro-Prov-V3-02.2012-03-22T10-02-21ZD.hdf"
>>  f = addfile(flnm, "r")
>> 
>>  print(f)
>> 
>> or: ncl_filedump filename
>> to see all the variables.
>> 
>> I have also checked with HDFView, which do not have such variable neither.
>> 
>> If you can tell us more about what you want to do with this dataset,
>> We'd like to help you.
>> 
>> 
>> Wei
>> 
>> 
>> ================================================
>> 1850 Table Mesa Dr.
>> Boulder, CO 80307
>> Phone: 303-497-8924
>> 
>> On Mon, Nov 24, 2014 at 12:29 PM, Sunmin Park <mireiyue at gmail.com> wrote:
>> Hi, Wei
>> 
>> I thought I figured it out however it is not working. I created text file for liar_altitude.txt using vi (got data from https://www.ncl.ucar.edu/Applications/calipso.shtml, calipso_3,ncl). 
>> 
>> Should I use “hdp dumpvd CALI_LID_L2_05kmAPro-Prov-V3-01.2009-07-10T14-32-05ZD.hdf_Sunset.hdf>vdata” to get the liar altitude? As I said in the previous email I tried but it doesn’t find the commend “hep”.
>> 
>> Could you please help me to get data from CALIPSO L2?
>> 
>> Thank you
>> Sun-
>> 
>> On Nov 24, 2014, at 9:24 AM, Wei Huang <huangwei at ucar.edu> wrote:
>> 
>>> Sun-.
>>> 
>>> NCL can handle most of HDF files.
>>> Try ncl_filedump your-filename.
>>> 
>>> Wei
>>> 
>>> ================================================
>>> 1850 Table Mesa Dr.
>>> Boulder, CO 80307
>>> Phone: 303-497-8924
>>> 
>>> On Mon, Nov 24, 2014 at 10:16 AM, Sunmin Park <mireiyue at gmail.com> wrote:
>>> Dear NCL users,
>>> 
>>> I am trying to read CALIPSO L2 profile data. According to the Application examples, NCL doesn’t not read HDF data therefore, we need to use hep dumped to get the liar altitude. However, when I tried and got "hdp: Command not found.” (I installed HDF5 because it didn’t work before so I looked for hdf which I didn’t have).
>>> 
>>> Could you please help me how I can get data from CALIPSO?
>>> I appreciate any comments and helps.
>>> 
>>> Best,
>>> Sun-
>>> _______________________________________________
>>> ncl-talk mailing list
>>> List instructions, subscriber options, unsubscribe:
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>>> 
>> 
>> 
> 
> 
> 
> <vdata.wei>

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