【免费派送】“SDF file has no discernable X coordinate” 问题详解

Jeanela

亟待解决啊

果林儿

感觉自己落后于时代=。=

棉兮兮

出现can't open station/index map file(null)，这是什么错误呀，该怎么解决呢，大神求助

SHIXIAOLAN

兰溪哥哥好样的，学习需要这样的大神指导和引领！

SHIXIAOLAN

菜鸟学习，需要兰溪这样的高手引领和指导！谢谢

洗雨

请问通过头文件怎么确定描述文件的初始时间？
这种又怎么书写呢？
netcdf Basin.EP.ibtracs_all.v03r06 {
dimensions:
storm = UNLIMITED ; // (1101 currently)
time = 191 ;
ncharsn = 13 ;
ncharnm = 57 ;
center = 25 ;
ncharcn = 10 ;
variables:
char storm_sn(storm, ncharsn) ;
  storm_sn:long_name = "Storm serial number" ;
char name(storm, ncharnm) ;
  name:long_name = "Storm name" ;
short numObs(storm) ;
  numObs:long_name = "Number of observations for the storm" ;
short season(storm) ;
  season:long_name = "Year based on season" ;
  season:Note = "Following WMO,\n",
   "NH Seasons begin 1 January and \n",
   "SH Seasons begin 1 July the prior year" ;
byte track_type(storm) ;
  track_type:long_name = "Track type" ;
  track_type:key = "0 = main - cyclogenesis to cyclolysis\n",
   "1 = merge - cyclogenesis to merger\n",
   "2 = split - split to cyclolysis\n",
   "3 = other - split to merger" ;
byte genesis_basin(storm) ;
  genesis_basin:long_name = "Basin of genesis" ;
  genesis_basin:units = " " ;
  genesis_basin:key = "0 = NA - North Atlantic\n",
   "1 = SA - South Atlantic\n",
   "2 = WP - West Pacific\n",
   "3 = EP - East Pacific\n",
   "4 = SP - South Pacific\n",
   "5 = NI - North Indian\n",
   "6 = SI - South Indian\n",
   "7 = AS - Arabian Sea\n",
   "8 = BB - Bay of Bengal\n",
   "9 = EA - Eastern Australia\n",
   "10 = WA - Western Australia\n",
   "11 = CP - Central Pacific\n",
   "12 = CS - Carribbean Sea\n",
   "13 = GM - Gulf of Mexico\n",
   "14 = MM - Missing" ;
  genesis_basin:Note = "Based on where the storm began" ;
byte num_basins(storm) ;
  num_basins:long_name = "Number of basins through which the storm passes" ;
  num_basins:units = " " ;
byte basin(storm, time) ;
  basin:long_name = "Basin" ;
  basin:units = " " ;
  basin:key = "0 = NA - North Atlantic\n",
   "1 = SA - South Atlantic\n",
   "2 = WP - West Pacific\n",
   "3 = EP - East Pacific\n",
   "4 = SP - South Pacific\n",
   "5 = NI - North Indian\n",
   "6 = SI - South Indian\n",
   "7 = AS - Arabian Sea\n",
   "8 = BB - Bay of Bengal\n",
   "9 = EA - Eastern Australia\n",
   "10 = WA - Western Australia\n",
   "11 = CP - Central Pacific\n",
   "12 = CS - Carribbean Sea\n",
   "13 = GM - Gulf of Mexico\n",
   "14 = MM - Missing" ;
  basin:Note = "Based on present location" ;
  basin:_FillValue = -127b ;
byte wind_avg_period(center) ;
  wind_avg_period:long_name = "Wind speed averaging period" ;
  wind_avg_period:units = "min" ;
  wind_avg_period:_FillValue = -127b ;
char source(center, ncharcn) ;
  source:long_name = "Source name" ;
  source:Note = "This order matches the dimension in source_* variables" ;
double source_time(storm, time) ;
  source_time:long_name = "Modified Julian Day" ;
  source_time:units = "days since 1858-11-17 00:00:00" ;
  source_time:_FillValue = -99999. ;
short lat_for_mapping(storm, time) ;
  lat_for_mapping:long_name = "Latitude for mapping purposes only" ;
  lat_for_mapping:units = "degrees_north" ;
  lat_for_mapping:scale_factor = 0.01f ;
  lat_for_mapping:_FillValue = -32767s ;
short lon_for_mapping(storm, time) ;
  lon_for_mapping:long_name = "Longitude for mapping purposes only" ;
  lon_for_mapping:units = "degrees_east" ;
  lon_for_mapping:scale_factor = 0.01f ;
  lon_for_mapping:_FillValue = -32767s ;
byte nature_for_mapping(storm, time) ;
  nature_for_mapping:long_name = "Storm nature" ;
  nature_for_mapping:key = "0 = TS - Tropical\n",
   "1 = SS - Subtropical\n",
   "2 = ET - Extratropical\n",
   "3 = DS - Disturbance\n",
   "4 = MX - Mix of conflicting reports\n",
   "5 = NR - Not Reported\n",
   "6 = MM - Missing\n",
   "7 =  - Missing" ;
  nature_for_mapping:Note = "Based on classification from original sources" ;
  nature_for_mapping:_FillValue = -127b ;
short source_lat(storm, time, center) ;
  source_lat:long_name = "Storm center latitude" ;
  source_lat:units = "degrees_north" ;
  source_lat:scale_factor = 0.01f ;
  source_lat:source = "hurdat_atl td9636 reunion atcf ds824_sh ds824_ni bom ds824_au jtwc_sh jtwc_wp td9635 ds824_wp jtwc_io cma hurdat_epa jtwc_ep ds824_ep jtwc_cp tokyo neumann hko cphc wellington newdelhi nadi" ;
  source_lat:_FillValue = -30000s ;
short source_lon(storm, time, center) ;
  source_lon:long_name = "Storm center longitude" ;
  source_lon:units = "degrees_east" ;
  source_lon:scale_factor = 0.01f ;
  source_lon:source = "hurdat_atl td9636 reunion atcf ds824_sh ds824_ni bom ds824_au jtwc_sh jtwc_wp td9635 ds824_wp jtwc_io cma hurdat_epa jtwc_ep ds824_ep jtwc_cp tokyo neumann hko cphc wellington newdelhi nadi" ;
  source_lon:_FillValue = -30000s ;
short source_wind(storm, time, center) ;
  source_wind:long_name = "Maximum Sustained Wind (MSW)" ;
  source_wind:units = "kt" ;
  source_wind:scale_factor = 0.1f ;
  source_wind:source = "hurdat_atl td9636 reunion atcf ds824_sh ds824_ni bom ds824_au jtwc_sh jtwc_wp td9635 ds824_wp jtwc_io cma hurdat_epa jtwc_ep ds824_ep jtwc_cp tokyo neumann hko cphc wellington newdelhi nadi" ;
  source_wind:_FillValue = -9990s ;
short source_pres(storm, time, center) ;
  source_pres:long_name = "Minimum Central Pressure (MCP)" ;
  source_pres:units = "mb" ;
  source_pres:scale_factor = 0.1f ;
  source_pres:source = "hurdat_atl td9636 reunion atcf ds824_sh ds824_ni bom ds824_au jtwc_sh jtwc_wp td9635 ds824_wp jtwc_io cma hurdat_epa jtwc_ep ds824_ep jtwc_cp tokyo neumann hko cphc wellington newdelhi nadi" ;
  source_pres:_FillValue = -9990s ;
short dist2land(storm, time) ;
  dist2land:long_name = "Distance to land" ;
  dist2land:units = "km" ;
  dist2land:_FillValue = -999s ;
short landfall(storm, time) ;
  landfall:long_name = "Minimum distance to land until next report (0=landfall)" ;
  landfall:units = "km" ;
  landfall:_FillValue = -999s ;
// global attributes:
  :Title = "IBTrACS-WMO: NetCDF reformat" ;
  :Version = "v03r06" ;
  :Description = "IBTrACS-WMO data reformatted to contain \n",
   "all data in one netCDF file. Also an attempt has been made\n",
   "to have the data appear as trajectories in the CDM" ;
  :cdm_datatype = "Trajectory" ;
  :trajectoryDimension = "storm" ;
  :Conventions = "CF-1.0" ;
  :metadata_link = "gov.noaa.ncdc:C00834" ;
}



numObs(storm) 0 99 Number of observations for the storm
season(storm) 0 99 Year based on season
lat_for_mapping(storm, time) 0 99 Latitude for mapping purposes only -32767s 0.01f
lon_for_mapping(storm, time) 0 99 Longitude for mapping purposes only -32767s 0.01f
source_lat(storm, time, center) 0 99 Storm center latitude north -30000s 0.01f
source_lon(storm, time, center) 0 99 Storm center longitude -30000s 0.01f
source_wind(storm, time, center) 0 99 Maximum Sustained Wind (MSW)[kt]-9990s 0.1f
source_pres(storm, time, center) 0 99 Minimum Central Pressure (MCP)[mb]-9990s 0.1f
dist2land(storm, time) 0 99 Distance to land[km]-999s
landfall(storm, time) 0 99 Minimum distance to land until next report (0=landfall)[km]-999s
這几个应该是变量，其中维数环境参量应该是storm，time，center但是grads的维数环境好像都是x，y，z，t等，在这头文件没搞明白其xyt的时间增量应该怎么设置！

meredithxf

真是拼了，为了学习

牛奶布丁

{:5_231:}{:5_231:}

jody

laikankan

2015sysu

学习一下，谢谢