HDF5 file, superblock version 0
group /
	attribute Conventions = "CF-1.8, ACDD-1.3, Spray-0.1"
	attribute acknowledgement = "Funded by National Oceanic and Atmospheric Administration (NOAA): Global Ocean Monitoring and Observing (GOMO) Program, and Integrated Ocean Observing System. Supported by Instrument Development Group - Scripps Institution of Oceanography"
	attribute contributor_name = "Daniel Rudnick, Guilherme Castelao"
	attribute contributor_role = "Principal Investigator, Data Curator"
	attribute creator_email = "idgdata@ucsd.edu"
	attribute creator_institution = "University of California - San Diego; Scripps Institution of Oceanography"
	attribute creator_name = "Instrument Development Group"
	attribute creator_type = "group"
	attribute creator_url = "http://spraydata.ucsd.edu"
	attribute ctd_make_model = "Seabird SBE 41CP"
	attribute date_created = "2021-03-23T04:26:52Z"
	attribute doi = "10.21238/S8SPRAY1618"
	attribute featureType = "trajectoryProfile"
	attribute geospatial_bounds = "POLYGON ((-123.5866725 29.84686, -123.590325 29.853175, -123.58823 29.855925, -123.2237025 30.04533, -118.179325 32.54168, -118.0441275 32.5798025, -117.38793 32.73929, -117.32512 32.7418525, -117.31819 32.739715, -117.37826 32.700175, -117.858935 32.40241, -119.8588125 31.46912, -121.0466125 30.9297725, -122.951335 30.0729, -123.0909525 30.01274, -123.5866725 29.84686))"
	attribute geospatial_bounds_crs = "EPSG:4326"
	attribute geospatial_bounds_vertical_crs = "EPSG:5831"
	attribute geospatial_lat_max = 32.7418525
	attribute geospatial_lat_min = 29.84686
	attribute geospatial_lon_max = -117.31819
	attribute geospatial_lon_min = -123.59032499999999
	attribute geospatial_vertical_max = 500
	attribute geospatial_vertical_min = 10
	attribute geospatial_vertical_positive = "down"
	attribute geospatial_vertical_units = "m"
	attribute id = "CUGN_line_93"
	attribute institution = "University of California - San Diego; Scripps Institution of Oceanography"
	attribute instrument = "Seabird SBE 41CP"
	attribute keywords = "underwater glider, pressure, temperature, salinity, currents, oxygen, fluorescence"
	attribute keywords_vocabulary = "GCMD Science Keywords"
	attribute metadata_link = "http://spraydata.ucsd.edu"
	attribute naming_authority = "edu.ucsd.spray"
	attribute processing_level = "Manually quality controled and only good data was binned in a regular structure."
	attribute product_version = "v3"
	attribute project = "Spray Underwater Glider"
	attribute publisher_email = "idgdata@ucsd.edu"
	attribute publisher_institution = "University of California - San Diego; Scripps Institution of Oceanography"
	attribute publisher_name = "Instrument Development Group"
	attribute publisher_type = "group"
	attribute publisher_url = "https://spraydata.ucsd.edu"
	attribute references = (text block)
| Rudnick, D. L. (2016). Ocean research enabled by underwater gliders. Annual review of marine science, 8, 519-541, doi:10.1146/annurev-marine-122414-033913
|  Rudnick, D. L., Davis, R. E., & Sherman, J. T. (2016). Spray Underwater Glider Operations. Journal of Atmospheric and Oceanic Technology, 33(6), 1113-1122, doi:10.1175/JTECH-D-15-0252.1
|  Rudnick, D. L., Davis, R. E., Eriksen, C. C., Fratantoni, D. M., & Perry, M. J. (2004). Underwater gliders for ocean research. Marine Technology Society Journal, 38(2), 73-84, doi:10.4031/002533204787522703
|  Sherman, J., Davis, R. E., Owens, W. B., & Valdes, J. (2001). The autonomous underwater glider 'Spray'. IEEE Journal of oceanic Engineering, 26(4), 437-446, doi:10.1109/48.972076
	attribute sea_name = "Coastal Waters of California"
	attribute standard_name_vocabulary = "CF Standard Name Table v75"
	attribute summary = (text block)
| The overarching goal of the California Underwater Glider Network is to sustain baseline observations of climate variability off the coast of California. The technical approach is to deploy autonomous underwater gliders in a network to provide real-time data.
| The CUGN uses Spray underwater gliders making repeated dives from the surface to 500 m and back, repeating the cycle every 3 hours, and traveling 3 km in the horizontal during that time. The CUGN includes gliders on three of the traditional cross-shore CalCOFI lines: line 66.7 off Monterey Bay, line 80 off Point Conception, and line 90 off Dana Point.
|  The glider missions typically last about 100 days, and cover over 2000 km, thus providing 4-6 sections on lines extending 300-500 km offshore. Since 2005 the CUGN has covered 200,000 km over ground in 28 glider-years, while doing 90,000 dives.
	attribute time_coverage_end = "2006-05-17T16:42:28Z"
	attribute time_coverage_start = "2005-04-21T20:16:26Z"
	attribute title = "California Underwater Glider Network - Line 93"
dataset /chlorophyll_a: float64, shape (50, 1481)
	attribute _FillValue = nan
	attribute comment = "Chlorophyll-a concentration estimated from fluorescence measurements."
	attribute coordinates = "time lon lat depth"
	attribute coverage_content_type = "physicalMeasurement"
	attribute long_name = "Chlorophyll-a concentration"
	attribute standard_name = "mass_concentration_of_chlorophyll_a_in_sea_water"
	attribute units = "mg m-3"
dataset /depth: int16, shape (50)
	attribute coverage_content_type = "coordinate"
	attribute long_name = "Depth"
	attribute positive = "down"
	attribute standard_name = "depth"
	attribute units = "m"
// depth: first 10, last 500, count 50
dataset /lat: float64, shape (1481)
	attribute _FillValue = nan
	attribute comment = (text block)
| The estimated latitude of the midpoint of the profile.
| For a glider profiling continuously, this latitude is 3/4 of the way between GPS fixes at the beginning and end of dives.  This is the latitude to use with the temperature and salinity variables, which are measured on the ascent only.
	attribute coverage_content_type = "coordinate"
	attribute long_name = "Latitude"
	attribute standard_name = "latitude"
	attribute units = "degrees_north"
dataset /lat_uv: float64, shape (1481)
	attribute _FillValue = nan
	attribute comment = (text block)
| The estimated latitude of the midpoint of the dive.
| For a glider profiling continuously, this latitude is 1/2 of the way between GPS fixes at the beginning and end of dives.  This is the latitude to use with depth-averaged velocity (u_depth_mean, v_depth_mean) which is an average throughout the dive
	attribute coverage_content_type = "coordinate"
	attribute long_name = "Latitude"
	attribute standard_name = "latitude"
	attribute units = "degrees_north"
dataset /lon: float64, shape (1481)
	attribute _FillValue = nan
	attribute comment = (text block)
| The estimated longitude of the midpoint of the profile.
| For a glider profiling continuously, this longitude is 3/4 of the way between GPS fixes at the beginning and end of dives.  This is the longitude to use with the temperature and salinity variables, which are measured on the ascent only.
	attribute coverage_content_type = "coordinate"
	attribute long_name = "Longitude"
	attribute standard_name = "longitude"
	attribute units = "degrees_east"
dataset /lon_uv: float64, shape (1481)
	attribute _FillValue = nan
	attribute comment = (text block)
| The estimated longitude of the midpoint of the dive.
| For a glider profiling continuously, this longitude is 1/2 of the way between GPS fixes at the beginning and end of dives.  This is the longitude to use with depth-averaged velocity (u_depth_mean, v_depth_mean) which is an average throughout the dive
	attribute coverage_content_type = "coordinate"
	attribute long_name = "Longitude"
	attribute standard_name = "longitude"
	attribute units = "degrees_east"
dataset /mission: int32, shape (1481)
	attribute comment = "ATTENTION, please use trajectory_index instead. - This dataset combines several underwater glider missions, i.e. several deployments. Profiles originated from the same mission have the same trajectory_index number. The names of the missions can be obtained from the variable mission_name, so that trajectory_index=0 relates to the first item in the variable mission_name."
	attribute long_name = "Mission name of each trajectory"
dataset /mission_name: string(1), shape (3, 8)
	attribute cf_role = "trajectory_id"
	attribute comment = "Mission name related to the variable trajectory_index, so that every record (profile) with trajectory_index=0 is related to the first name recorded here (mission_name), trajectory_index=1 related to second name record, and so on. The individual trajectories (missions) are also available in separated files with the same name (mission) used here."
	attribute long_name = "Mission name of each trajectory."
dataset /mission_profile: int32, shape (1481)
	attribute long_name = "Profile of one mission"
dataset /name_strlen: float32, shape (8)
dataset /profile: int32, shape (1481)
	attribute cf_role = "profile_id"
// profile: first 0, last 1480, count 1481
dataset /salinity: float64, shape (50, 1481)
	attribute _FillValue = nan
	attribute coordinates = "time lon lat depth"
	attribute coverage_content_type = "physicalMeasurement"
	attribute long_name = "Sea Water Salinity"
	attribute standard_name = "sea_water_practical_salinity"
	attribute units = "1"
	attribute valid_max = 40.0
	attribute valid_min = 0.0
dataset /temperature: float64, shape (50, 1481)
	attribute _FillValue = nan
	attribute coordinates = "time lon lat depth"
	attribute coverage_content_type = "physicalMeasurement"
	attribute long_name = "Sea Water Temperature"
	attribute standard_name = "sea_water_temperature"
	attribute units = "Celsius"
	attribute valid_max = 40.0
	attribute valid_min = -5.0
dataset /time: float64, shape (1481)
	attribute _FillValue = nan
	attribute axis = "T"
	attribute calendar = "gregorian"
	attribute comment = (text block)
| The estimated time of the midpoint of the profile.
| For a glider profiling continuously, this time is 3/4 of the way between GPS fixes at the beginning and end of dives.  This is the time to use with the temperature and salinity variables, which are measured on the ascent only.
	attribute coverage_content_type = "coordinate"
	attribute long_name = "Time"
	attribute standard_name = "time"
	attribute units = "seconds since 1970-01-01T00:00:00Z"
dataset /time_uv: float64, shape (1481)
	attribute _FillValue = nan
	attribute axis = "T"
	attribute calendar = "gregorian"
	attribute comment = (text block)
| The estimated time of the midpoint of the dive.
| For a glider profiling continuously, this time is 1/2 of the way between GPS fixes at the beginning and end of dives.  This is the time to use with depth-averaged velocity (u_depth_mean, v_depth_mean) which is an average throughout the dive.
	attribute coverage_content_type = "coordinate"
	attribute long_name = "Time"
	attribute standard_name = "time"
	attribute units = "seconds since 1970-01-01T00:00:00Z"
dataset /trajectory: float32, shape (3)
dataset /trajectory_index: int32, shape (1481)
	attribute ancillary_variables = "mission_name"
	attribute comment = "This dataset combines several underwater glider missions, i.e. several deployments. Profiles originated from the same mission have the same trajectory_index number. The names of the missions can be obtained from the variable mission_name, so that trajectory_index=0 relates to the first item in the variable mission_name."
	attribute long_name = "which mission (trajectory) this profile is part of"
dataset /u_depth_mean: float64, shape (1481)
	attribute _FillValue = nan
	attribute comment = "Depth-averaged water velocity (zonal component) which is an average throughout the dive as defined by Rudnick et. al. 2018 (doi: 10.1175/JTECH-D-17-0200.1)."
	attribute coordinates = "time_uv lon_uv lat_uv"
	attribute coverage_content_type = "physicalMeasurement"
	attribute long_name = "Depth-Averaged Eastward Sea Water Velocity"
	attribute standard_name = "eastward_sea_water_velocity"
	attribute units = "m s-1"
dataset /v_depth_mean: float64, shape (1481)
	attribute _FillValue = nan
	attribute comment = "Depth-averaged water velocity (meridional component) which is an average throughout the dive as defined by Rudnick et. al. 2018 (doi: 10.1175/JTECH-D-17-0200.1)."
	attribute coordinates = "time_uv lon_uv lat_uv"
	attribute coverage_content_type = "physicalMeasurement"
	attribute long_name = "Depth-Averaged Northward Sea Water Velocity"
	attribute standard_name = "northward_sea_water_velocity"
	attribute units = "m s-1"