**Aerosol data problems with NASA GMAO GEOS-5**

[Jason Snyder]

I think bin 1, 2, 3, 4 are particle size bins.  the larger the size bin
number the smaller the dust particle diameter.

On Tue, Jan 19, 2010 at 11:45 PM, hossein lotfi
<h.meteo.shirazu at gmail.com>wrote:

> Hi Jason
> I am realy sorry,I have problem with this website too,
> chek this website (
> http://gdata1.sci.gsfc.nasa.gov/daac-bin/G3/gui.cgi?instance_id=MODIS_DAILY_L3)
> I think it is useful for you
> pleas tell me if it is useful
> oh I have a question!! what is (bin 01) (bin 02).... in your first website
> that we have problem with it?
>
>   On Wed, Jan 20, 2010 at 5:01 AM, Jason Snyder <jmssnyder at ucdavis.edu>wrote:
>
>> I am still having problem with this website:
>>
>>
>> http://portal.nccs.nasa.gov/cgi-lats4d/webform.cgi?&i=GEOS-5/yotc/0.25_deg/assim/inst3_3d_aer_Nv
>> I am trying to download data and I need to set up the times so that the
>> time steps are every 0 hours (ie January 3 2009 0:00Z, NOT January 3 2009
>> 0:00Z, so I can use it with NCEP wind data also with time times ending on 0
>> hours (ie January 3 2009 0:00Z).  I tried to make the start time for the
>> data I ordered January 3 2009 0:00 Z(I used many start and end dates
>> including March 14 2009, etc.).  I get a netcdf file but when I try to open
>> it in GrADS I get the following message:
>>
>> ga-> sdfopen inst3_3d_aer_Nv-201001200048.nc
>> Scanning self-describing file:  inst3_3d_aer_Nv-201001200048.nc
>>  NetCDF: Index exceeds dimension bound
>> SDF Error: nc_get_vara_double failed to read coordinate axis value
>> gadsdf: Error reading first time value in SDF file.
>> ga->
>>
>> How can I download aerosol data so that I can use it with NCEP data (
>> http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html)?
>>
>> I tried downloading data from
>>
>>
>> http://portal.nccs.nasa.gov/cgi-lats4d/webform.cgi?&i=GEOS-5/yotc/0.25_deg/assim/inst3_3d_aer_Nv
>>
>> using the original begin and end time values under time range (January 1
>> 2009 3:00 Z)
>>
>> and I cannot use this data set with the NCEP data from website :
>> http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html
>>
>> since this data has time steps ending with 0 hours Z instead od 3 hours Z
>> from the aerosol data.  How do I resolve this or at least how where can I
>> find aerosol/wind data that I can use together?
>>
>> Thanks,
>>
>> Jason
>>   On Mon, Jan 18, 2010 at 5:35 PM, Jason Snyder <jmssnyder at ucdavis.edu>wrote:
>>
>>> I am trying to download a netcdf file with sulfate aerosol and bin 4 dust
>>> mixing ratio data from the following website:
>>>
>>>
>>> http://portal.nccs.nasa.gov/cgi-lats4d/webform.cgi?&i=GEOS-5/yotc/0.25_deg/assim/inst3_3d_aer_Nv
>>>
>>> I get this error message when I do this:
>>>    The website cannot display the page  HTTP 500
>>>     Most likely causes:
>>>
>>>    - The website is under maintenance.
>>>    - The website has a programming error.
>>>
>>>     What you can try:       Refresh the page.       Go back to the
>>> previous page.      [image: More information]<https://mail.google.com/a/ucdavis.edu/html/compose/static_files/blank_quirks.html#>
>>>    The website cannot display the page  HTTP 500
>>>     Most likely causes:
>>>
>>>    - The website is under maintenance.
>>>    - The website has a programming error.
>>>
>>>     What you can try:       Refresh the page.       Go back to the
>>> previous page.      [image: More information]<https://mail.google.com/a/ucdavis.edu/html/compose/static_files/blank_quirks.html#>
>>> I have been trying this several times and still I keep getting this error
>>> message.
>>> For the tme steps on the data requested I need to have start on 0 hours
>>> time wise to be compatible with other data sets.
>>>
>>> Can you help me get data from this website or if you have these data
>>> files already to e-mail them to me?
>>>
>>> Thanks,
>>>
>>> Jason
>>>
>>
>>
>
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