James:<br><br>Thanks so much for your response. Do you know when the Level 3 data will be ready? I want to use this data to create a contour plot of mean tropospheric NO2 column for the month of June 2006. Do you know of any user friendly software that I could use to make this plot? IDL is definitely not the most user friendly. I know I could very easily just use the DOMINO data but I have been asked to the the OMINO2G product.<br>
<br>Jonathan<br><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Nov 19, 2012 at 2:01 PM, James E. Johnson <span dir="ltr"><<a href="mailto:James.Johnson@nasa.gov" target="_blank">James.Johnson@nasa.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I should add that working with these data requires properly screening the data<br>
(for quality, as well as other issues) before attempting to grid the data. We<br>
are currently waiting for the OMI NO2 group to deliver to us their 'gridded'<br>
Level 3 product which will have the recommended screening applied to the data.<br>
Our sister organization has these data in plain HDF5 files available at<br>
<a href="http://avdc.gsfc.nasa.gov/" target="_blank">http://avdc.gsfc.nasa.gov/</a> (separate variables in daily or monthly files). We<br>
should be receiving the gridded HDF-EOS5 data<br>
shortly (all variables in a single daily file).<br>
<div class="im"><br>
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| James E. Johnson | address: |<br>
</div>| Wyle Information Systems, Inc. | NASA Goddard Space Flight Center |<br>
| e-mail: <a href="mailto:james.johnson@nasa.gov">james.johnson@nasa.gov</a> | Distributed Active Archive Center |<br>
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<br>
<br>
On Monday, November 19, 2012 12:02:14 pm Jonathan Wynn Smith wrote:<br>
</div><div><div class="h5">> Hello,<br>
><br>
> I get the following error message when opening an OMI .he5 file for<br>
> nitrogen dioxide. I have included the Descriptor file iat the bottom of<br>
> this email. What is causing this HDF-DIAG error and what can I do to fix<br>
> it?:<br>
><br>
> OMINO2G_hdf.gs<br>
> No hardcopy metafile open<br>
> All files closed; all defined objects released;<br>
> All GrADS attributes have been reinitialized<br>
> HDF5-DIAG: Error detected in HDF5 (1.8.7) thread 0:<br>
> #000: H5Dio.c line 153 in H5Dread(): selection+offset not within extent<br>
> major: Dataspace<br>
> minor: Out of range<br>
> HDF5 read error for float data<br>
> Data Request Error: Error for variable 'no2col'<br>
> Error ocurred at column 1<br>
> DISPLAY error: Invalid expression<br>
> Expression = no2col<br>
> Cannot plot color bar: No shading information<br>
> Hardcopy output file is closed<br>
> ga-><br>
><br>
><br>
> Control File<br>
> DSET<br>
> ^Desktop/OMI_NO2_Data/OMI-Aura_L2G-OMNO2G_2006m0601_v003-2012m0714t200707.<br>
</div></div>> SUB.he5 DTYPE hdf5_grid<br>
<div class="HOEnZb"><div class="h5">> TITLE OMI NO2 L2G Monthly Nitrogen Dioxide Column Density Collection<br>
> UNDEF -1.2676506E30 _FillValue<br>
> XDEF 283 linear -35 1.0<br>
> YDEF 161 linear -20 1.0<br>
> ZDEF 15 levels 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14<br>
> *ZDEF 15 levels 825.402, 681.291, 464.16, 316.227, 215.444, 146.779, 100,<br>
> 68.1295, 46.4158, 31.6229, 21.5443, 14.678, 10, 6.81291, 4.6416 TDEF 1<br>
> linear 1jun2006 1dy<br>
> VARS 2<br>
> /HDFEOS/GRIDS/ColumnAmountNO2/Data~Fields/ColumnAmountNO2Trop=>no2 15 x,y,z<br>
> ColumnAmountNO2Trop<br>
> /HDFEOS/GRIDS/ColumnAmountNO2/Data~Fields/ColumnAmountNO2=>no2col 0 x,y<br>
> ColumnAmountNO2 */HDFEOS/GRIDS/ColumnAmountNO2/Data~Fields/Longitude=>LON<br>
> x Longitude */HDFEOS/GRIDS/ColumnAmountNO2/Data~Fields/Latitude=>LAT y<br>
> Latitude<br>
</div></div></blockquote></div><br></div>