[ncl-talk] ncl core dump when accessing hdf5 group
Pan, Jianfu (GSFC-423.0)[COLUMBUS TECHNOLOGIES AND SERVICES INC]
jianfu.pan at nasa.gov
Tue Jul 14 13:33:46 MDT 2015
Hi Wei,
Adding "/" to the group name, g = f=>/Global_Projection, didn't seem to help. I'll try the new version of NCL. Thanks!
Jianfu
________________________________
From: Wei Huang [whuang at univ-wea.com]
Sent: Tuesday, July 14, 2015 2:29 PM
To: Pan, Jianfu (GSFC-423.0)[COLUMBUS TECHNOLOGIES AND SERVICES INC]; ncl-talk at ucar.edu
Subject: RE: ncl core dump when accessing hdf5 group
Jianfu,
You may try switch from:
g = f=>Global_Projection
to
g = f=>/Global_Projection
to see if it makes a difference.
Also, NCL has released 6.3.0, you may want to update your NCL,
As there are quite few bug fixed regarding read HDF5 files.
Regards,
Wei Huang
From: Pan, Jianfu (GSFC-423.0)[COLUMBUS TECHNOLOGIES AND SERVICES INC] [mailto:jianfu.pan at nasa.gov]
Sent: Tuesday, July 14, 2015 2:22 PM
To: Wei Huang; ncl-talk at ucar.edu
Subject: RE: ncl core dump when accessing hdf5 group
Thanks Wei for your quick response. I was able to dump or print(f). It has too much text to put it here, including metadata in ISO XML format. The following is part of the printout. Thanks. -Jianfu
ncl_filedump outputs:
Copyright (C) 1995-2014 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 6.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
Variable: f
Type: file
filename: SMAP_L1C_TB_00869_D_20150331T235250_R11340_001
path: /SMAP/SPL1CTB/SMAP_L1C_TB_00869_D_20150331T235250_R11340_001.h5
file global attributes:
dimensions:
DIM_000 = 8286
DIM_001 = 8162
DIM_002 = 16521
variables:
group </Global_Projection>
float cell_antenna_scan_angle_aft ( DIM_002 )
_FillValue : -9999
coordinates : /Global_Projection/cell_lat /Global_Projection/cell_lon
long_name : Representative scan angle of the SMAP antenna on the spacecraft for all aft looking footprints within the cell.
units : degreesntative scan angle of the SMAP antenna on the spacecraft for all aft looking footprints within the cell.
valid_max : 359.999
valid_min : 0
......
ushort cell_tb_qual_flag_3_aft ( DIM_002 )
_FillValue : 65534
coordinates : /Global_Projection/cell_lat /Global_Projection/cell_lonrature for all forward looking footprints that fall within the grid cell.thin the grid cell.l.the grid cell.vector for forward looking footprints within the cell.
flag_masks : 1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 4096s, 8192s, 16384sd looking footprints that fall within the grid cell.thin the grid cell.l.the grid cell.vector for forward looking footprints within the cell.
flag_meanings : Aft_looking_3rd_Stokes_quality_flag Aft_looking_3rd_Stokes_range_flag Aft_looking_3rd_Stokes_RFI_clean_flag Aft_looking_3rd_Stokes_RFI_repair_flag Aft_looking_3rd_Stokes_NEDT_flag Aft_looking_3rd_Stokes_direct_sun_correction Aft_looking_3rd_Stokes_reflected_sun_correction Aft_looking_3rd_Stokes_reflected_moon_correction Aft_looking_3rd_Stokes_direct_galaxy_correction Aft_looking_3rd_Stokes_reflected_galaxy_correction Aft_looking_3rd_Stokes_correction_for_atmospheric_conditions Aft_looking_3rd_Stokes_null_value_bit Aft_looking_3rd_Stokes_parameter_half_orbit_location Aft_looking_3rd_Stokes_RFI_check
long_name : Bit flags that represent the quality of the aft looking third stokes parameters within each grid cell._flag Aft_looking_3rd_Stokes_RFI_repair_flag Aft_looking_3rd_Stokes_NEDT_flag Aft_looking_3rd_Stokes_direct_sun_correction Aft_looking_3rd_Stokes_reflected_sun_correction Aft_looking_3rd_Stokes_reflected_moon_correction Aft_looking_3rd_Stokes_direct_galaxy_correction Aft_looking_3rd_Stokes_reflected_galaxy_correction Aft_looking_3rd_Stokes_correction_for_atmospheric_conditions Aft_looking_3rd_Stokes_null_value_bit Aft_looking_3rd_Stokes_parameter_half_orbit_location Aft_looking_3rd_Stokes_RFI_check
...
________________________________
From: Wei Huang [whuang at univ-wea.com]
Sent: Tuesday, July 14, 2015 2:06 PM
To: Pan, Jianfu (GSFC-423.0)[COLUMBUS TECHNOLOGIES AND SERVICES INC]; ncl-talk at ucar.edu<mailto:ncl-talk at ucar.edu>
Subject: RE: ncl core dump when accessing hdf5 group
Jianfu,
Do a “ncl_filedump your-filename”,
Or a “print(f)” after opened the file,
Will help you and the people who is willing to help.
Wei Huang
From: ncl-talk-bounces at ucar.edu<mailto:ncl-talk-bounces at ucar.edu> [mailto:ncl-talk-bounces at ucar.edu] On Behalf Of Pan, Jianfu (GSFC-423.0)[COLUMBUS TECHNOLOGIES AND SERVICES INC]
Sent: Tuesday, July 14, 2015 2:02 PM
To: ncl-talk at ucar.edu<mailto:ncl-talk at ucar.edu>
Subject: [ncl-talk] ncl core dump when accessing hdf5 group
When I tried to access an h5 group in ncl, I got a core dump. Does anyone know if there is a limit on the amount of data or number of variables an h5 group can have? Here is the snippet:
f = addfile("smap_L1C_file.h5", "r")
g = f=>Global_Projection ; Core dump happens here
I'm using ncl version 6.2.1. Thank you.
Jianfu
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20150714/531c22a7/attachment.html
More information about the ncl-talk
mailing list