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[las_users] Different value in netCDF/missing add_offset



Hi


My name is Sam, I will be working with Rosanna and Kacie for PO.DAAC’s LAS. I am new to LAS and would appreciate some help trying to solve an issue. I am encountering different values in the netCDF output. In my case, it is resulting in negative values for Kelvin temperature scale. I see a scale_factor in the attributes but an add_offset is not shown, is it possible that might be the issue in the netCDF output?

 

I have attached some data showing the discrepancies for one example area in the

Ocean Temperature / GHRSST - Group for High Resolution SST Version 1 / GHRSST Level 4 MUR Global Foundation Sea Surface Temperature Analysis (0.011deg/1.2km)  Dataset http://thredds.jpl.nasa.gov/las/getUI.do

 

I would be grateful if anyone could offer any input or help!

 

Thank you!
Sam Luu

 

Data from showing values in LAS output:

 

             VARIABLE : analysed sea surface temperature (kelvin)

             DATA SET : Multi-scale Ultra-high Resolution (MUR) SST analysis

             FILENAME : aggregate__ghrsst_JPL-L4UHfnd-GLOB-MUR.ncml

             FILEPATH : http://seastore.jpl.nasa.gov/thredds/dodsC/GHRSST_JPL-L4UHfnd-GLOB-MUR_TIMEAGG/

             SUBSET   : 7 by 7 points (LONGITUDE-LATITUDE)

             TIME     : 01-JUN-2002 09:00

                   118.4W 118.4W 118.4W 118.4W 118.4W 118.4W 118.3W

                  5607   5608   5609   5610   5611   5612   5613

31.58N  / 11067:  288.1  288.1  288.1  288.2  288.2  288.2  288.2

31.569N / 11066:  288.2  288.2  288.2  288.2  288.2  288.2  288.2

31.558N / 11065:  288.2  288.2  288.2  288.2  288.2  288.2  288.2

31.547N / 11064:  288.2  288.2  288.2  288.2  288.2  288.2  288.2

31.536N / 11063:  288.2  288.2  288.2  288.2  288.2  288.2  288.2

31.525N / 11062:  288.2  288.2  288.2  288.2  288.2  288.2  288.3

31.514N / 11061:  288.2  288.2  288.2  288.2  288.3  288.3  288.3

 

Data from MATLab pulled from netCDF:

 

1.0e+04 *

 

   -0.9928   -0.9944   -0.9959   -0.9973   -0.9986   -0.9999   -1.0010

   -0.9922   -0.9938   -0.9954   -0.9968   -0.9982   -0.9995   -1.0007

   -0.9915   -0.9932   -0.9947   -0.9962   -0.9977   -0.9991   -1.0003

   -0.9906   -0.9923   -0.9940   -0.9956   -0.9971   -0.9985   -0.9998

   -0.9896   -0.9914   -0.9931   -0.9947   -0.9963   -0.9978   -0.9992

   -0.9884   -0.9902   -0.9921   -0.9938   -0.9954   -0.9970   -0.9985

   -0.9870   -0.9890   -0.9908   -0.9927   -0.9944   -0.9961   -0.9976

Attachment: plot.PNG
Description: plot.PNG

Attachment: B2D195CF3C1C783AE95D083B49D8C077_ferret_listing.nc
Description: B2D195CF3C1C783AE95D083B49D8C077_ferret_listing.nc


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