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阿弥陀佛

街树飘影未见尘 潭月潜水了无声 般若观照心空静...

 
 
 

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一直从事气象预报、服务建模实践应用。 注重气象物理场、实况场、地理信息、本体知识库、分布式气象内容管理系统建立。 对Barnes客观分析, 小波,计算神经网络、信任传播、贝叶斯推理、专家系统、网络本体语言有一定体会。 一直使用Java、Delphi、Prolog、SQL编程。

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雷达基数据格式描述  

2015-04-02 14:40:24|  分类: DOC |  标签: |举报 |字号 订阅

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netcdf /wk/Z_RADR_I_Z9771_20140719000200_O_DOR_SA_CAP.bin {
dimensions:
radial = 372;
scanR = 9;
gateR = 460;
scanV = 9;
gateV = 920;
variables:
byte Reflectivity(scanR=9, radial=372, gateR=460);
:units = "dBz";
:long_name = "Reflectivity";
:missing_value = 1B, 0B; // byte
:signal_below_threshold = 0B; // byte
:scale_factor = 0.5f; // float
:add_offset = -33.0f; // float
:_Unsigned = "true";
:_CoordinateAxes = "timeR elevationR azimuthR distanceR";

int timeR(scanR=9, radial=372);
:long_name = "time since base date";
:units = "msecs since 2014-07-19T00:02:59Z";
:missing_value = -9999; // int
:_CoordinateAxisType = "Time";

//仰角
float elevationR(scanR=9, radial=372);
:units = "degrees";
:long_name = "elevation angle in degres: 0 = parallel to pedestal base, 90 = perpendicular";
:missing_value = NaNf; // float
:_CoordinateAxisType = "RadialElevation";

//方位角
float azimuthR(scanR=9, radial=372);
:units = "degrees";
:long_name = "azimuth angle in degrees: 0 = true north, 90 = east";
:missing_value = NaNf; // float
:_CoordinateAxisType = "RadialAzimuth";
//距离
float distanceR(gateR=460);
:units = "m";
:long_name = "radial distance to start of gate";
:_CoordinateAxisType = "RadialDistance";

int numRadialsR(scanR=9);
:long_name = "number of valid radials in this scan";

int numGatesR(scanR=9);
:long_name = "number of valid gates in this scan";

byte RadialVelocity(scanV=9, radial=372, gateV=920);
:units = "m/s";
:long_name = "Radial Velocity";
:missing_value = 1B, 0B; // byte
:signal_below_threshold = 0B; // byte
:scale_factor = 0.5f; // float
:add_offset = -64.5f; // float
:_Unsigned = "true";
:_CoordinateAxes = "timeV elevationV azimuthV distanceV";

int timeV(scanV=9, radial=372);
:long_name = "time since base date";
:units = "msecs since 2014-07-19T00:02:59Z";
:missing_value = -9999; // int
:_CoordinateAxisType = "Time";

float elevationV(scanV=9, radial=372);
:units = "degrees";
:long_name = "elevation angle in degres: 0 = parallel to pedestal base, 90 = perpendicular";
:missing_value = NaNf; // float
:_CoordinateAxisType = "RadialElevation";

float azimuthV(scanV=9, radial=372);
:units = "degrees";
:long_name = "azimuth angle in degrees: 0 = true north, 90 = east";
:missing_value = NaNf; // float
:_CoordinateAxisType = "RadialAzimuth";

float distanceV(gateV=920);
:units = "m";
:long_name = "radial distance to start of gate";
:_CoordinateAxisType = "RadialDistance";

int numRadialsV(scanV=9);
:long_name = "number of valid radials in this scan";

int numGatesV(scanV=9);
:long_name = "number of valid gates in this scan";

byte SpectrumWidth(scanV=9, radial=372, gateV=920);
:units = "m/s";
:long_name = "Spectrum Width";
:missing_value = 1B, 0B; // byte
:signal_below_threshold = 0B; // byte
:scale_factor = 0.5f; // float
:add_offset = -64.5f; // float
:_Unsigned = "true";
:_CoordinateAxes = "timeV elevationV azimuthV distanceV";

char radialCoordinateTransform;
:transform_name = "Radial";
:center_latitude = 0.0; // double
:center_longitude = 0.0; // double
:center_elevation = 0.0; // double
:_CoordinateTransformType = "Radial";
:_CoordinateAxisTypes = "RadialElevation RadialAzimuth RadialDistance";

// global attributes:
:Station = "Z_RA";
:StationName = "unknown";
:StationLatitude = 0.0; // double
:StationLongitude = 0.0; // double
:StationElevationInMeters = 0.0; // double
:geospatial_lat_min = -2.0649930132304974; // double
:geospatial_lat_max = 2.0649930132304974; // double
:geospatial_lon_min = -2.0649930132304974; // double
:geospatial_lon_max = 2.0649930132304974; // double
:Conventions = "_Coordinates";
:format = "CINRAD-SA";
:featureType = "RADIAL";
:time_coverage_start = "2014-07-19T00:02:59Z";
:time_coverage_end = "2014-07-19T00:08:44Z";
:history = "Direct read of Nexrad Level 2 file into NetCDF-Java 2.2 API";
:DataType = "Radial";
:Title = "Nexrad Level 2 Station Z_RA from 2014-07-19T00:02:59Z to 2014-07-19T00:08:44Z";
:Summary = "Weather Surveillance Radar-1988 Doppler (WSR-88D) Level II data are the three meteorological base data quantities: reflectivity, mean radial velocity, and spectrum width.";
:keywords = "WSR-88D; NEXRAD; Radar Level II; reflectivity; mean radial velocity; spectrum width";
:VolumeCoveragePatternName = "11 elevation scans every 6 mins";
:VolumeCoveragePattern = 21; // int
:HorizonatalBeamWidthInDegrees = 1.5; // double
}
Reflectivity:
0 113 -127 -115 -119 -117 -118 -117 -117 -120 -123 -123 -120 -116 -115 -114 -115 -118 -115 -116 -116
timeR:
179245 179332 179419 179506 179593 179680 179767 179854 179941 180028 180115 180202 180289 180377 18
elevationR:
0.52734375 0.52734375 0.52734375 0.52734375 0.52734375 0.52734375 0.52734375 0.52734375 0.52734375 0
azimuthR:
327.08496 327.96387 328.84277 329.85352 330.8203 331.91895 332.9297 334.02832 335.12695 336.18164 33
distanceR:
0.0 1000.0 2000.0 3000.0 4000.0 5000.0 6000.0 7000.0 8000.0 9000.0 10000.0 11000.0 12000.0 13000.0 1
numRadialsR:
366 366 370 371 370 367 364 36
RadialVelocity:
0 0 0 0 0 118 117 113 116 124 115 122 114 110 0 0 114 113 113 115 114 113 115 108 111 111 109 107 11
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