mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-11-27 07:30:33 +08:00
119 lines
5.0 KiB
Plaintext
119 lines
5.0 KiB
Plaintext
netcdf 500m {
|
|
dimensions:
|
|
time = 2 ;
|
|
lat = 153 ;
|
|
lon = 106 ;
|
|
nSites = 4 ;
|
|
nProcParam = 7 ;
|
|
variables:
|
|
float lat(lat) ;
|
|
lat:standard_name = "latitude" ;
|
|
lat:units = "degrees_north" ;
|
|
float lon(lon) ;
|
|
lon:standard_name = "longitude" ;
|
|
lon:units = "degrees_east" ;
|
|
float site_lat(nSites) ;
|
|
site_lat:long_name = "Contributing radar site latitudes" ;
|
|
site_lat:standard_name = "latitude" ;
|
|
site_lat:units = "degrees_north" ;
|
|
float site_lon(nSites) ;
|
|
site_lon:long_name = "Contributing radar site longitudes" ;
|
|
site_lon:standard_name = "longitude" ;
|
|
site_lon:units = "degrees_east" ;
|
|
char site_code(nSites) ;
|
|
site_code:long_name = "Contributing radar site code" ;
|
|
site_code:DODS:strlen = 25 ;
|
|
site_code:DODS:dimName = "nSites_maxStrlen" ;
|
|
char site_netCode(nSites) ;
|
|
site_netCode:long_name = "Contributing radar site network affiliation code" ;
|
|
site_netCode:DODS:strlen = 25 ;
|
|
site_netCode:DODS:dimName = "nSites_maxStrlen" ;
|
|
float procParams(nProcParam) ;
|
|
procParams:long_name = "RTV processing parameters" ;
|
|
procParams:comment = "\n",
|
|
"01) Maximum GDOP threshold\n",
|
|
"02) Maximum speed threshold (cm s-1)\n",
|
|
"03) Minimum number of sites required\n",
|
|
"04) Minimum number of radials required\n",
|
|
"05) Maximum angular gap to interpolate radial\n",
|
|
" data over (degrees, 0 = no interpolation)\n",
|
|
"06) Maximum gap in range to interpolate radial\n",
|
|
" data over (range-resolution, 0 = no interpolation)\n",
|
|
"07) Spatial search radius for radial solutions (km)" ;
|
|
int time(time) ;
|
|
time:standard_name = "time" ;
|
|
time:units = "seconds since 1970-01-01" ;
|
|
time:calendar = "gregorian" ;
|
|
short u(time, lat, lon) ;
|
|
u:standard_name = "surface_eastward_sea_water_velocity" ;
|
|
u:units = "m s-1" ;
|
|
u:_FillValue = -32768s ;
|
|
u:scale_factor = 0.01f ;
|
|
u:ancillary_variables = "DOPx" ;
|
|
short v(time, lat, lon) ;
|
|
v:standard_name = "surface_northward_sea_water_velocity" ;
|
|
v:units = "m s-1" ;
|
|
v:_FillValue = -32768s ;
|
|
v:scale_factor = 0.01f ;
|
|
v:ancillary_variables = "DOPy" ;
|
|
short DOPx(time, lat, lon) ;
|
|
DOPx:long_name = "longitudinal dilution of precision" ;
|
|
DOPx:comment = "The longitudinal dilution of precision (DOPx) represents the\n",
|
|
"contribution of the radars\' configuration geometry to\n",
|
|
"uncertainty in the eastward velocity estimate (u). DOPx is a\n",
|
|
"direct multiplier of the standard error in obtaining the\n",
|
|
"standard deviation for the eastward velocity estimate from the\n",
|
|
"least squares best fit. DOPx and DOPy are commonly used to\n",
|
|
"obtain the geometric dilution of precision\n",
|
|
"(GDOP = sqrt(DOPx^2 + DOPy^2)), a useful metric for filtering\n",
|
|
"errant velocities due to poor geometry." ;
|
|
DOPx:_FillValue = -32768s ;
|
|
DOPx:scale_factor = 0.01f ;
|
|
short DOPy(time, lat, lon) ;
|
|
DOPy:long_name = "latitudinal dilution of precision" ;
|
|
DOPy:comment = "The latitudinal dilution of precision (DOPy) represents the\n",
|
|
"contribution of the radars\' configuration geometry to\n",
|
|
"uncertainty in the northward velocity estimate (v). DOPy is a\n",
|
|
"direct multiplier of the standard error in obtaining the\n",
|
|
"standard deviation for the northward velocity estimate from the\n",
|
|
"least squares best fit. DOPx and DOPy are commonly used to\n",
|
|
"obtain the geometric dilution of precision\n",
|
|
"(GDOP = sqrt(DOPx^2 + DOPy^2)), a useful metric for filtering\n",
|
|
"errant velocities due to poor geometry." ;
|
|
DOPy:_FillValue = -32768s ;
|
|
DOPy:scale_factor = 0.01f ;
|
|
|
|
// global attributes:
|
|
:netcdf_library_version = "netcdf library version 3.6.1 of Feb 3 2008 23:15:25 $" ;
|
|
:format_version = "HFRNet_1.0.0b2" ;
|
|
:product_version = "HFRNet_1.1.01" ;
|
|
:Conventions = "CF-1.1" ;
|
|
:title = "Near-Real Time Surface Ocean Velocity" ;
|
|
:institution = "Scripps Institution of Oceanography" ;
|
|
:source = "Surface Ocean HF-Radar" ;
|
|
:history = "13-Mar-2008 18:20:09: NetCDF file created" ;
|
|
:references = "Terrill, E. et al., 2006. Data Management and Real-time\n",
|
|
"Distribution in the HF-Radar National Network. Proceedings\n",
|
|
"of the MTS/IEEE Oceans 2006 Conference, Boston MA,\n",
|
|
"September 2006." ;
|
|
:creator_name = "Mark Otero" ;
|
|
:creator_email = "motero@mpl.ucsd.edu" ;
|
|
:creator_url = "http://cordc.ucsd.edu/projects/mapping/" ;
|
|
:summary = "Surface ocean velocities estimated from HF-Radar are\n",
|
|
"representitive of the upper 0.3 - 2.5 meters of the\n",
|
|
"ocean. The main objective of near-real time\n",
|
|
"processing is to produce the best product from\n",
|
|
"available data at the time of processing. Radial\n",
|
|
"velocity measurements are obtained from individual\n",
|
|
"radar sites through the HF-Radar Network and\n",
|
|
"processed to create near-real time velocities\n",
|
|
"(RTVs)" ;
|
|
:geospatial_lat_min = 37.45549f ;
|
|
:geospatial_lat_max = 38.13873f ;
|
|
:geospatial_lon_min = -122.5935f ;
|
|
:geospatial_lon_max = -122.0469f ;
|
|
:grid_resolution = "500m" ;
|
|
:grid_projection = "equidistant cylindrical" ;
|
|
:regional_description = "California Coast, United States" ;
|
|
}
|