[ncl-talk] ADO + removing title on map plot

Toni Klemm toni-klemm at tamu.edu
Mon Sep 9 07:55:54 MDT 2019


Hi Zoe,

Could you send your new script with the changes I suggested. Although I’ve never worked with HDF data, it should have worked.

The file you sent contains the variable Deep_Blue_Aerosol_Optical_Depth_550_Land_Mean, which you are extracting in line 9 of your original code.  

    short Deep_Blue_Aerosol_Optical_Depth_550_Land_Mean(YDim=180, XDim=360);
      :valid_range = 0S, 5000S; // short
      :_FillValue = -9999S; // short
      :long_name = "Deep blue aerosol optical depth at 0.55 microns for land (corrected): Mean";
      :units = "none";
      :scale_factor = 0.0010000000474974513; // double
      :add_offset = 0.0; // double
      :Masked_With_QA_Usefulness_Flag = "True";
      :Level_2_Pixel_Values_Read_As = "Real";
      :Derived_From_Level_2_Data_Set = "Deep_Blue_Aerosol_Optical_Depth_550_Land";
      :Included_Level_2_Nighttime_Data = "False";
      :Quality_Assurance_Data_Set = "Quality_Assurance_Land";
      :Statistic_Type = "Simple";
      :QA_Byte = 4S; // short
      :QA_Useful_Flag_Bit = 0S; // short
      :QA_Value_Start_Bit = 1S; // short
      :QA_Value_Num_Bits = 2S; // short
      :Aggregation_Data_Set = "None";

The variable has a number of attributes, which you see above, the third of which is long_name. That is what NCL uses to determine the title of your map, unless you tell it something else, for example by setting 

res at tiMainString = “[your custom map title]"

Make sure there is no semicolon in front of res at tiMainString !

If it still doesn’t work, please attach your script, and I can take a look what is wrong. 

Also, check out Panoply (https://www.giss.nasa.gov/tools/panoply/ <https://www.giss.nasa.gov/tools/panoply/>) to view your HDF files and all the metadata and attributes (and netCDF files, too) It’s a great program and has helped me a lot figuring out problems with my data.

Good luck,
Toni


Toni Klemm, Ph.D.
Postdoctoral Research Associate
Department of Ecosystem Science and Management
College of Agriculture and Life Sciences
Texas A&M University, College Station, TX
www.toni-klemm.de <http://www.toni-klemm.de/> | @toniklemm <http://www.twitter.com/toniklemm>
Editorial Board member, Early Career Climate Forum <http://www.eccforum.org/>








> On Sep 8, 2019, at 4:03 PM, zoe jacobs <zoejacobs1990 at gmail.com> wrote:
> 
> Dear Toni, 
> Please check the attached file.
> Best wishes,
>  01-01.hdf <https://urldefense.proofpoint.com/v2/url?u=https-3A__drive.google.com_file_d_1JUtlZ7FFggSaPd5IosGMDBOmbF1YcfeN_view-3Fusp-3Ddrive-5Fweb&d=DwMFaQ&c=u6LDEWzohnDQ01ySGnxMzg&r=zmhRVp0i4wZ5_1Ujh0fnRXAExHgKLTQu0rZLW7PxKA4&m=UsnBcgdnIR3NL175E-6P7QWpWE7wKOO9TXnYD8t44QI&s=JyjJcvay9k7mR_eBhQONqhQn2N02piSnWG1cYoF7UDU&e=>
> 
> On Mon, Sep 9, 2019 at 12:56 AM Toni Klemm <toni-klemm at tamu.edu <mailto:toni-klemm at tamu.edu>> wrote:
> Could you attach your netCDF file if it’s not too big? Also, please also respond to ncl-talk at ucar.edu <mailto:ncl-talk at ucar.edu> so that the conversation is archived for future reference.
> 
> Toni
> 
> 
> Toni Klemm, Ph.D.
> Postdoctoral Research Associate
> Department of Ecosystem Science and Management
> College of Agriculture and Life Sciences
> Texas A&M University, College Station, TX
> www.toni-klemm.de <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.toni-2Dklemm.de_&d=DwMFaQ&c=u6LDEWzohnDQ01ySGnxMzg&r=zmhRVp0i4wZ5_1Ujh0fnRXAExHgKLTQu0rZLW7PxKA4&m=UsnBcgdnIR3NL175E-6P7QWpWE7wKOO9TXnYD8t44QI&s=OPWK3YEYM3ciFs1ObreyjdHO1Wkv43QCVjWgI3V2xNQ&e=> | @toniklemm <https://urldefense.proofpoint.com/v2/url?u=https-3A__twitter.com_ToniKlemm&d=DwMFaQ&c=u6LDEWzohnDQ01ySGnxMzg&r=zmhRVp0i4wZ5_1Ujh0fnRXAExHgKLTQu0rZLW7PxKA4&m=UsnBcgdnIR3NL175E-6P7QWpWE7wKOO9TXnYD8t44QI&s=KUlUjvom6bloeTRmtIELV_mWMAA_MVxqyHQhj7_1ca0&e=>
> Editorial Board member, Early Career Climate Forum <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.eccforum.org_&d=DwMFaQ&c=u6LDEWzohnDQ01ySGnxMzg&r=zmhRVp0i4wZ5_1Ujh0fnRXAExHgKLTQu0rZLW7PxKA4&m=UsnBcgdnIR3NL175E-6P7QWpWE7wKOO9TXnYD8t44QI&s=sRvWLTsJ-deu-64UBXdoeH0NYUaZnYVNNrTmSz9EYzM&e=>
> 
> 
> 
> 
>> On Sep 8, 2019, at 3:14 PM, zoe jacobs <zoejacobs1990 at gmail.com <mailto:zoejacobs1990 at gmail.com>> wrote:
>> 
>> Dear Toni,
>> Thank you for your advice. But, it did not work. NCL derives the title automatically from the file and I do not know how! 
>> best wishes,
>> 
>> On Sun, Sep 8, 2019 at 11:18 PM Toni Klemm <toni-klemm at tamu.edu <mailto:toni-klemm at tamu.edu>> wrote:
>> Hi Zoe,
>> 
>> Remove the semicolon at the beginning of this line in your script:
>> 
>> ; res at tiMainString = "Deep blue aerosol optical depth”
>> 
>> and replace that line with:
>> 
>> res at tiMainString = ""
>> 
>> This way the map title should be blank.
>> 
>> As a side note, if no map or plot title is explicitly provided in the script, NCL defaults to what is written in the metadata field long_name.
>> 
>> Good luck,
>> Toni
>> 
>> 
>> Toni Klemm, Ph.D.
>> Postdoctoral Research Associate
>> Department of Ecosystem Science and Management
>> College of Agriculture and Life Sciences
>> Texas A&M University, College Station, TX
>> www.toni-klemm.de <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.toni-2Dklemm.de_&d=DwMFaQ&c=u6LDEWzohnDQ01ySGnxMzg&r=zmhRVp0i4wZ5_1Ujh0fnRXAExHgKLTQu0rZLW7PxKA4&m=UTWVYnFKZ8Q2Yv4W6_804zllkROE5jc4YQDSxEiV7bo&s=1C0Kr40EBujBrul5R_nhNwVSQ8In7Bb-iTGHTQfEooo&e=> | @toniklemm <https://urldefense.proofpoint.com/v2/url?u=https-3A__twitter.com_ToniKlemm&d=DwMFaQ&c=u6LDEWzohnDQ01ySGnxMzg&r=zmhRVp0i4wZ5_1Ujh0fnRXAExHgKLTQu0rZLW7PxKA4&m=UTWVYnFKZ8Q2Yv4W6_804zllkROE5jc4YQDSxEiV7bo&s=Q9Wyvz-XcEd96oXOQz-5kJ8lV2M83wI48IiWXOd3KlI&e=>
>> Editorial Board member, Early Career Climate Forum <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.eccforum.org_&d=DwMFaQ&c=u6LDEWzohnDQ01ySGnxMzg&r=zmhRVp0i4wZ5_1Ujh0fnRXAExHgKLTQu0rZLW7PxKA4&m=UTWVYnFKZ8Q2Yv4W6_804zllkROE5jc4YQDSxEiV7bo&s=_IMTKMzkAj7om4knQYkX4SPyy_RjKKY6Qa91Ip05V6I&e=>
>> 
>> 
>> 
>> 
>>> On Sep 8, 2019, at 1:34 PM, zoe jacobs via ncl-talk <ncl-talk at ucar.edu <mailto:ncl-talk at ucar.edu>> wrote:
>>> 
>>> Hi all,
>>> I have plotted AOD [ Aerosol Optical Depth], from MODIS data (hdf file). However, I need to remove the title on my map ( the image attached). Would you please give me suggestions on how to remove the title? I also attached my script.
>>> Best wishes,
>>> <a_modis.png><aod-modis.ncl>_______________________________________________
>>> ncl-talk mailing list
>>> ncl-talk at ucar.edu <mailto:ncl-talk at ucar.edu>
>>> List instructions, subscriber options, unsubscribe:
>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__mailman.ucar.edu_mailman_listinfo_ncl-2Dtalk&d=DwICAg&c=u6LDEWzohnDQ01ySGnxMzg&r=zmhRVp0i4wZ5_1Ujh0fnRXAExHgKLTQu0rZLW7PxKA4&m=c977kCbW5XgIWAVaYwrsuObLHJRSNx_W6C9EWccIlvg&s=Bs-os1nWvYnqVIl324moV7Uds-QIg5bxnOk39RjKu1U&e= <https://urldefense.proofpoint.com/v2/url?u=http-3A__mailman.ucar.edu_mailman_listinfo_ncl-2Dtalk&d=DwICAg&c=u6LDEWzohnDQ01ySGnxMzg&r=zmhRVp0i4wZ5_1Ujh0fnRXAExHgKLTQu0rZLW7PxKA4&m=c977kCbW5XgIWAVaYwrsuObLHJRSNx_W6C9EWccIlvg&s=Bs-os1nWvYnqVIl324moV7Uds-QIg5bxnOk39RjKu1U&e=>
> 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20190909/8f845591/attachment.html>


More information about the ncl-talk mailing list