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Dataset Title:	Doppio Reanalysis Version 3 Observations
Institution:	Rutgers University (Dataset ID: DOPPIO_REANALYSIS_Ver3_OBS)
Range:	longitude = -80.24546 to -59.690285°E, latitude = 32.23944 to 46.61133°N, depth = -4604.7 to 0.0m, time = 2007-01-02T00:00:00Z to 2021-12-28T23:55:47Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  obs_type {
    Int32 actual_range 1, 7;
    String ioos_category "Location";
    String long_name "model state variable associated with observation";
    String option_01 "free-surface";
    String option_02 "vertically integrated u-momentum component";
    String option_03 "vertically integrated v-momentum component";
    String option_04 "u-momentum component";
    String option_05 "v-momentum component";
    String option_06 "potential temperature";
    String option_07 "salinity";
    String units "unity";
  }
  obs_scale {
    Int32 actual_range 0, 1;
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Unknown";
    String long_name "observation screening/normalization scale";
  }
  obs_provenance {
    Int32 actual_range 0, 1750;
    Int32 ALTIKA_SSH 426;
    Int32 Altimeter_superobs 400;
    Int32 AMSR_microwave_SST 306;
    Int32 AVHRR_IR_SST 302;
    String CODAR_Radial_velocities "550 plus antenna number";
    Int32 CODAR_velocities 500;
    Int32 Cryosat_SSH 424;
    Int32 ECOMON_CTD 730;
    Int32 Envisat_SSH 423;
    Int32 GOES_geostationary_IR_SST 303;
    Float64 Insitu_No_Pioneer_super_observations 700.0;
    String ioos_category "Unknown";
    Int32 IOOS_gliders 702;
    Int32 Jason_1_SSH 401;
    Int32 Jason_2_SSH 402;
    Int32 Jason_3_SSH 403;
    String long_name "Obs Provenance";
    Int32 MetOffice_Argo 722;
    Int32 MetOffice_Bouys 723;
    Int32 MetOffice_CTD_XCTD_TESAC 721;
    Int32 MetOffice_XBT 720;
    Int32 NERACOOS_CTD 740;
    Int32 OSMC_GTS_floats 713;
    Int32 OSMC_GTS_gliders 711;
    Int32 OSMC_GTS_moored_bouys 716;
    Int32 OSMC_GTS_other 710;
    Int32 OSMC_GTS_ships_generic 717;
    Int32 OSMC_GTS_VOShips 714;
    Int32 Pioneer_Array_CP01CNPM 612;
    Int32 Pioneer_Array_CP01CNSM 601;
    Int32 Pioneer_Array_CP01CNSP 602;
    Int32 Pioneer_Array_CP02PMCI 603;
    Int32 Pioneer_Array_CP02PMCO 604;
    Int32 Pioneer_Array_CP02PMUI 605;
    Int32 Pioneer_Array_CP02PMUO 606;
    Int32 Pioneer_Array_CP03ISPM 613;
    Int32 Pioneer_Array_CP03ISSM 607;
    Int32 Pioneer_Array_CP03ISSP 608;
    Int32 Pioneer_Array_CP04OSPM 609;
    Int32 Pioneer_Array_CP04OSSM 611;
    Int32 Pioneer_Array_GL003 641;
    Int32 Pioneer_Array_GL335 642;
    Int32 Pioneer_Array_GL336 643;
    Int32 Pioneer_Array_GL339 644;
    Int32 Pioneer_Array_GL340 645;
    Int32 Pioneer_Array_GL374 646;
    Int32 Pioneer_Array_GL375 647;
    Int32 Pioneer_Array_GL379 648;
    Int32 Pioneer_Array_GL380 649;
    Int32 Pioneer_Array_GL387 650;
    Int32 Pioneer_Array_GL388 651;
    Int32 Pioneer_Array_GL389 652;
    Int32 Pioneer_Array_GL390 653;
    Int32 Pioneer_Array_Other 660;
    Int32 Pioneer_Array_PG564 654;
    Int32 Pioneer_Array_PG583 656;
    Int32 RU_MARACOOS_gliders 701;
    Int32 Sentinel_3a_SSH 441;
    Int32 Sentinel_3b_SSH 442;
    Int32 SST_super_observations 300;
    Int32 TRMM_microwave_SST 304;
    Int32 VIIRS_IR_SST 307;
    Int32 WSAT_microwave_SST 305;
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.167696e+9, 1.640735747371e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "time of observation";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -80.24546157578857, -59.69028308386868;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "longitude of observation";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 32.23944076281737, 46.61132781935112;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "latitude of observation";
    String standard_name "latitude";
    String units "degrees_north";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 actual_range -4604.70043762354, 0.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth Of Observation";
    Float64 missing_value 1.0e+37;
    String negative_value "downwards";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  obs_error {
    Float64 actual_range 4.0e-4, 18.356336090773016;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
    String long_name "observation error, assigned weight";
    String units "squared state variable units";
  }
  obs_value {
    Float64 actual_range -4.8233304857752595, 37.138301849365234;
    String ioos_category "Unknown";
    String long_name "observation value";
    String units "state variable units";
  }
  merc_value {
    Float64 actual_range -1.7679973343796815, 37.34491328117615;
    String ioos_category "Unknown";
    String long_name "Mercator Model interpolated value";
  }
  hycom_value {
    Float64 actual_range -6.222692181185167, 38.03988846748781;
    String ioos_category "Unknown";
    String long_name "Hycom Model interpolated value";
  }
  model_value {
    Float64 actual_range -5.056483139951368, 41.22689094977274;
    String cell_methods "Nouter: mean";
    String ioos_category "Unknown";
    String long_name "nonlinear model at observation locations per outer-loop";
    String units "state variable units";
  }
  BgError_value {
    Float64 actual_range 0.0, 4.245051532561217;
    String ioos_category "Unknown";
    String long_name "Background error standard deviation at observation locations";
    String units "state variable units";
  }
  increment {
    Float64 actual_range -36.74621095387472, 16.532572345763064;
    String ioos_category "Unknown";
    String long_name "analysis (posterior) minus background (prior)";
    Float64 missing_value 1.0e+37;
  }
  innovation {
    Float64 actual_range -13.41205451930703, 13.677063747424473;
    String ioos_category "Unknown";
    String long_name "observation minus background (prior)";
    Float64 missing_value 1.0e+37;
  }
  residual {
    Float64 actual_range -16.945625583854813, 36.884154099684494;
    String ioos_category "Unknown";
    String long_name "observation minus analysis (posterior)";
    Float64 missing_value 1.0e+37;
  }
 }
  NC_GLOBAL {
    String Algorithm "RBL4DVAR";
    String cdm_data_type "Point";
    String code_dir "/cache/home/levinj/ROMS/doppio/svn1040t";
    String compiler_command "/opt/sw/packages/intel-17.0.4/mvapich2/2.2/bin/mpif90";
    String compiler_flags "-fp-model precise -heap-arrays -ip -O3 -traceback -check uninit";
    String compiler_system "ifort";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    Float64 Easternmost_Easting -59.69028308386868;
    String featureType "Point";
    Float64 geospatial_lat_max 46.61132781935112;
    Float64 geospatial_lat_min 32.23944076281737;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -59.69028308386868;
    Float64 geospatial_lon_min -80.24546157578857;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 0.0;
    Float64 geospatial_vertical_min -4604.70043762354;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String header_dir "/projects/f_omg_1/julia/watl/Run/psas";
    String header_file "watl.h";
    String history 
"Mon Jul 18 13:04:44 2022: ncwa -a Nouter /home/om/cron/erddap_doppio_reanalysis_ver3/tmp/temp.nc -O /home/om/cron/erddap_doppio_reanalysis_ver3/data/temp_5838.nc
Mon Jul 18 13:04:42 2022: ncks -v obs_time,obs_lon,obs_lat,obs_error,obs_value,obs_scale,obs_type,obs_depth,obs_provenance,obs_Zgrid,NLmodel_initial,NLmodel_value,BgError_value -d Nouter,-1 /home/julia/ROMS/doppio/Run/psas/run53/mod/doppio_mod_5838.nc -O /home/om/cron/erddap_doppio_reanalysis_ver3/tmp/temp.nc
ROMS/TOMS, Version 3.9, Friday - March 18, 2022 -  6:25:45 PM
2024-04-16T06:45:41Z (local files)
2024-04-16T06:45:41Z https://tds.marine.rutgers.edu/tabledap/DOPPIO_REANALYSIS_Ver3_OBS.das";
    String infoUrl "https://www.myroms.org/";
    String institution "Rutgers University";
    String keywords "assigned, associated, background, BgError_value, BgThresh_value, check, control, data, datum, depth, error, final, grid, initial, latitude, linear, local, locations, longitude, misfit, misfit_final, misfit_initial, model, model-observation, NLmodel_initial, nonlinear, normalization, obs, obs_depth, obs_error, obs_lat, obs_lon, obs_provenance, obs_scale, obs_time, obs_type, obs_value, obs_Xgrid, obs_Ygrid, obs_Zgrid, observation, observations, provenance, quality, scale, screening, screening/normalization, source, state, statistics, tangent, threshold, time, TLmodel_value, value, variable, weight, with, x-grid, y-grid, z-grid";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String NCO "netCDF Operators version 4.7.7 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    Float64 Northernmost_Northing 46.61132781935112;
    String obs_file "ssh_sst_codar_glider_ctd_argo_5838.nc";
    String source "/home/om/cron/erddap_doppio_reanalysis_ver3/data";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 32.23944076281737;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "obs_type,obs_provenance";
    String summary "Observations used in Doppio Reanalysis Version 3";
    String svn_rev "1040";
    String svn_url "https://www.myroms.org/svn/src/trunk";
    String time_coverage_end "2021-12-28T23:55:47Z";
    String time_coverage_start "2007-01-02T00:00:00Z";
    String title "Doppio Reanalysis Version 3 Observations";
    String type "ROMS/TOMS 4D-Var output observation processing file";
    Float64 Westernmost_Easting -80.24546157578857;
  }
}

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The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

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Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.

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