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楼主 |
发表于 2014-7-23 10:00:21
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我帖一下ncdump -c 内容如下。
netcdf H2A_SM2B20140714_14020 {
dimensions:
lat = 1624 ;
lon = 76 ;
dim2 = 4 ;
variables:
short max_likelihood_est(lat, lon, dim2) ;
max_likelihood_est:unit = "n/a " ;
max_likelihood_est:scale_factor = 0.001f ;
max_likelihood_est:scale_factor_err = 0.f ;
max_likelihood_est:add_offset = 0.f ;
max_likelihood_est:add_offset_err = 0.f ;
max_likelihood_est:valid_range = -3000.f ;
short model_dir(lat, lon) ;
model_dir:unit = "deg " ;
model_dir:scale_factor = 0.1f ;
model_dir:scale_factor_err = 0.f ;
model_dir:add_offset = 0.f ;
model_dir:add_offset_err = 0.f ;
model_dir:valid_range = 0.f ;
short model_speed(lat, lon) ;
model_speed:unit = "m/s " ;
model_speed:scale_factor = 0.01f ;
model_speed:scale_factor_err = 0.f ;
model_speed:add_offset = 0.f ;
model_speed:add_offset_err = 0.f ;
model_speed:valid_range = 0.f ;
short num_ambigs(lat, lon) ;
num_ambigs:unit = "count " ;
num_ambigs:scale_factor = 1.f ;
num_ambigs:scale_factor_err = 0.f ;
num_ambigs:add_offset = 0.f ;
num_ambigs:add_offset_err = 0.f ;
num_ambigs:valid_range = 0.f ;
float time_day(lat) ;
float time_sec(lat) ;
short wind_dir(lat, lon, dim2) ;
wind_dir:unit = "deg " ;
wind_dir:scale_factor = 0.1f ;
wind_dir:scale_factor_err = 0.f ;
wind_dir:add_offset = 0.f ;
wind_dir:add_offset_err = 0.f ;
wind_dir:valid_range = 0.f ;
short wind_dir_err(lat, lon, dim2) ;
wind_dir_err:unit = "deg " ;
wind_dir_err:scale_factor = 0.1f ;
wind_dir_err:scale_factor_err = 0.f ;
wind_dir_err:add_offset = 0.f ;
wind_dir_err:add_offset_err = 0.f ;
wind_dir_err:valid_range = 0.f ;
short wind_dir_selection(lat, lon) ;
wind_dir_selection:unit = "deg " ;
wind_dir_selection:scale_factor = 0.1f ;
wind_dir_selection:scale_factor_err = 0.f ;
wind_dir_selection:add_offset = 0.f ;
wind_dir_selection:add_offset_err = 0.f ;
wind_dir_selection:valid_range = 0.f ;
short wind_speed(lat, lon, dim2) ;
wind_speed:unit = "m/s " ;
wind_speed:scale_factor = 0.01f ;
wind_speed:scale_factor_err = 0.f ;
wind_speed:add_offset = 0.f ;
wind_speed:add_offset_err = 0.f ;
wind_speed:valid_range = 0.f ;
short wind_speed_selection(lat, lon) ;
wind_speed_selection:unit = "m/s " ;
wind_speed_selection:scale_factor = 0.01f ;
wind_speed_selection:scale_factor_err = 0.f ;
wind_speed_selection:add_offset = 0.f ;
wind_speed_selection:add_offset_err = 0.f ;
wind_speed_selection:valid_range = 0.f ;
float wvc_lat(lat, lon) ;
wvc_lat:unit = "deg " ;
wvc_lat:scale_factor = 1.f ;
wvc_lat:scale_factor_err = 0.f ;
wvc_lat:add_offset = 0.f ;
wvc_lat:add_offset_err = 0.f ;
wvc_lat:valid_range = -90.f ;
float wvc_lon(lat, lon) ;
wvc_lon:unit = "deg " ;
wvc_lon:scale_factor = 1.f ;
wvc_lon:scale_factor_err = 0.f ;
wvc_lon:add_offset = 0.f ;
wvc_lon:add_offset_err = 0.f ;
wvc_lon:valid_range = 0.f ;
short wvc_quality_flag(lat, lon) ;
wvc_quality_flag:unit = "na " ;
wvc_quality_flag:scale_factor = 1.f ;
wvc_quality_flag:scale_factor_err = 0.f ;
wvc_quality_flag:add_offset = 0.f ;
wvc_quality_flag:add_offset_err = 0.f ;
wvc_quality_flag:valid_range = 0.f ;
short wvc_selection(lat, lon) ;
wvc_selection:unit = "count " ;
wvc_selection:scale_factor = 1.f ;
wvc_selection:scale_factor_err = 0.f ;
wvc_selection:add_offset = 0.f ;
wvc_selection:add_offset_err = 0.f ;
wvc_selection:valid_range = 0.f ;
// global attributes:
:longName = "HY-2A Level 2B Ocean Wind Vectors in 25 km Swath Grid " ;
:ShortName = "HY-2A SCAT-L2B " ;
:producer_agency = "CNSA " ;
:producer_institution = "NSOAS " ;
:InstrumentShorName = "HY-2A SCAT " ;
:platformLongName = "Haiyang 2A Ocean Observing Satellite " ;
:platformShortName = "HY-2A " ;
:platformType = "spacecraft " ;
:project_id = "HY-2A SCAT " ;
:data_format_type = "NCSA HDF " ;
:granulePointer = "H2A_SM2B20140714_14020.h5 " ;
:inputPointer = "H2A_SM2A20140714_14020.h5 " ;
:ancillary_data_descriptors = "land_mask \n",
" ice_mask \n",
" NWP wind " ;
:sis_id = "sis1.0 " ;
:build_id = "V1.0 " ;
:HDF_version_id = "HDF5-1.6.5/2011-8-15 " ;
:parameterName = "sea surface wind " ;
:operationMode = "wind observation " ;
:rangeBeginningDate = "20140714 " ;
:rangeEndingDate = "20140714 " ;
:rangeBeginningTime = "20140714T00:10:20.729 " ;
:rangeEndingTime = "20140714T01:52:00.978 " ;
:productionDateTime = "Mon Jul 14 10:11:38 2014 " ;
:ephemeris_type = "GPS " ;
:l2b_algorithm_descrptor = "Use look up table for ku band GMF/n Applies median filter technique for ambiguity removal. Ambiguity median filter is based on wind vectors over a 7 by 7 wind vector window " ;
:median_filter_method = "circular median filter " ;
:l2b_actual_wvc_rows = "1624 " ;
:l2b_expected_wvc_rows = "1624 " ;
:sigma0_granularity = "whole egg " ;
data:
}
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