NCAR Command Language (NCL) is an interpreted language designed for sceintific data analysis and visualization with high quality graphics, espeially for atmospherice scince. NCL has been support NetCDF 3/4, GRIB 1/2, HDF-SDS, HDF_EOS, shapefiles, binary, and ASCII files for years. Now HDF-EOS5 is the released version, and HDF5 in beta-test stage.
Now NCL team are developing NCL to write HDF5 files, and to read HDF-EOS5 data with OPeNDAP.
NCL team will share with people their experience to visualize and analyze HDF-EOS5 and HDF5 data.
Visualizing and Analyzing HDF and HDF-EOS Data with NCL
1. Visualizing and Analyzing of
HDF-EOS and HDF data with NCL
Wei Huang, Dave Brown, Mary Haley,
Rick Brownrigg
CISL/NCAR
Dennis Shea, Adam Philips
CGD/NCAR
huangwei@ucar.edu
2. What is NCL
◦ NCL stands for NCAR Command Language
http://www.ncl.ucar.edu for more information
◦ NCL is developed at CISL/NCAR, for
scientific data analysis and visualization
◦ Free available as binaries, open source
◦ Supports NetCDF (3 and 4), GRIB (1 and 2),
HDF, HDF-EOS 2 and 5 (as Spring of 2010)
◦ Newly added HDF5 and OpenDap (in 2010)
◦ High quality graphics
◦ Lots of example scripts
02/17/14
CISL/NCAR
3. HDF-EOS5 Released April, 2010
HDF-EOS5
included NCL
◦ 5.2.0 released in April, 2010
◦ 5.2.1 released in July, 2010
HDF,
and HDF-EOS2/5 Examples
◦ http://www.ncl.ucar.edu/Applications/HDF.shtml
◦ Use “ncl_filedump” to check variables in HDF, and
HDF-EOS2/5 files
◦ Use “ncl_convert2nc” to convert HDF-EOS2/5 and
HDF files to NetCDF files
02/17/14
CISL/NCAR
20. Conclusion
HDF-EOS5
is already released
◦ 5.2.0 in April, 2010
◦ 5.2.1 in July, 2010
HDF5
will be released soon
◦ Being tested with lots of data
◦ In Beta Version
HDF-EOS5
OpenDap is on the way
◦ With limited test
◦ In Alpha Version
02/17/14
CISL/NCAR