GCOOS Vocabulary

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Label Definition minRange maxRange UnitOfMeasure Abbreviation
upward_wind Up/Down component of wind vector. Up is positive. m s-1 z_wind
z Z-coordinate of observation. Zero (z=0) is defined by reference. Up is positive. meter z
water_temperature In situ water temperature 5.0 35.0 celsius wtemp
wind_speed Magnitude of wind velocity. 0.0 150.0 m s-1 wspd
wind_wave_period Period of wind-waves. second wind_wv_per
wind_wave_height Average height of the highest one-third of the wind-waves, if a separation between swell and wind-wave energy peak exists. meter wind_wv_ht
wind_wave_to_direction Direction the wind-waves are coming from. degrees_true wind_wv_dir
wind_gust Maximum instantaneous wind speed (usually no more than but not limited to 10 seconds) within a sample averaging interval. 0.0 250.0 m s-1 wgust
wet_bulb_temperature Temperature of evaporative cooling. celsius wet_bulb_temp
wind_from_direction Direction from which wind is blowing. Meteorological Convention. 0.0 360.0 degrees_true wdir
wind_to_direction Direction toward which wind is blowing. Oceanographic convention. 0.0 360.0 degrees_true wdir
electromagnetic_wavelength specific frequency of energy within the electromagnetic spectrum. m wavelength
vertical_current Upward/Downward component of ocean current. Upward is positive. cm s-1 water_w
northward_current North/South component of ocean current. Northward is positive. cm s-1 water_v
eastward_current East/West component of ocean current. Eastward is positive. cm s-1 water_u
water_pressure Amount of pressure caused by overlying water column. Pa | bar | dbar | atm water_press
voltage Voltage measurement of the battery volts volt
visibility Greatest distance an object can be seen and identified. Usually refering to visibility in air but could be other medium. m visibility
downwelling_uv_radiance Integrated downwelling radiance for wavelengths in the ultraviolet region. W m-2 sr-1 uv_rad
downwelling_uv_irradiance Integrated downwelling irradiance for wavelengths in the ultraviolet region. W m-2 uv_irrad
turbidity Measure of light scattering due to suspended material in water. NTU turb
time Time coordinate of observation based on number of seconds since the defined reference time. sec since 1970-1-1 00:00:00 time
northward_wind_stress North/South component of wind stress. Northward is positive. N m-2 tau_y
eastward_wind_stress East/West component of wind stress. Eastward is positive. N m-2 tau_x
wind_stress_to_direction Direction toward which wind stress is acting. degrees_true tau_dir
wind_stress Magnitude of wind stress. Wind stress is the force of wind imposed on a unit area. N m-2 tau
swell_period Period of the swells. second swell_per
swell_height Average height of the highest one-third of the swells, if a separation between swell and wind-wave energy peak exists. meter swell_ht
swell_to_direction Direction the swell is coming from. degrees_true swell_dir
surface Upper 1-2 meters of an interface between two layers, commonly the sea surface. surface
sea_surface_elevation Height or altitude of the sea surface above specified reference. meter surf_el
wave_steepness Measure of departure from typical wave slope. steepness
specific_conductance Ability of a specific volume (1 cubic centimeter) of water to pass an electrical current. uS cm-1 sp_cond
source_time Time coordinate of observation based on unit of time (seconds, hours, days) since a defined reference time. {sec | hr | day} since YYYY-MM-DD HH:MM:SS.xxx {+/- ZONE} source_time
sound_velocity Magnitude of velocity of sound in water. m s-1 sound_velocity
skin Upper millimeter to centimeter of a surface. meter skin
significant_wave_period Period of the significant wave. second sig_wv_per
signifcant_wave_height Average height of the highest one-third of the waves. meter sig_wv_ht
signifcant_wave_to_direction Significant wave direction. degrees_true sig_wv_dir
sample_interval Time period between observations. seconds sample_interval
salinity Measure of salt content of a seawater sample follows UNESCO standards; approximately parts per thousand. 20.0 38.0 PSS or PSU or PPT salinity
relative_wind_speed Magnitude of wind velocity relative to a moving platform, e.g. ship. 0.0 70.0 m s-1 rel_wndspd
relative_wind_from_direction Direction from which wind is blowing relative to a moving platform, e.g. ship. 0.0 360.0 degrees_true rel_wnddirec
relative_humidity Amount of moisture in the air as vapor relative to how much it can possibly hold at the same temperature. 0.0 105.0 precent rel_humid
downwelling_shortwave_irradiance Integrated downwelling irradiance for spectral wavelengths less than 700nm. W m-2 psp_irrad
precipitation_rate Amount of wet equivalent precipitation per unit time. mm hr-1 precip_rate
precipitation_accumlated_daily Amount of wet equivalent precipitation accumulated for a 24 hour period. mm precip_accum
downwelling_longwave_irradiance Integrated downwelling irradiance for spectral wavelengths greater than 700nm. W m-2 pir_irrad
oxygen_saturation Concentration at which oxygen becomes saturated in water. ug L-1 oxygen_sat
oxygen_concentration Concentration in water of dissolved oxygen. ug L-1 oxygen_concen
number_profile_bins Number of uniformely spaced depth cells where data is collected number_bins
number_adcp_beams Number of directionally independent beams of the ADCP 2.0 6.0 number_beams
northward_wind North/South component of wind vector. Northward wind is positive. m s-1 north_wind
nitrate_concentration Measured nitrate concentration in the immediate environment ug L-1 nitrate
mixing_ratio The ratio of mass of water vapor to the mass of dry air in the sample. g kg-1 mix
longitude_seconds+A151 Fraction of lon_min divided by 60. 0.0 60.0 angular_second lon_sec
longitude_minutes Fraction of longitude degree divided by 60. 0.0 60.0 angular_minute lon_min
longitude_hemisphere Eastern or Western hemisphere E | W lon_hem
longitude_degrees Integer degrees of longitude degrees_east lon_deg
longitude X-coordinate of dependent observation in geographic coordinate. East is positive. Alternate definition: The angular distance east and west of the prime meridian (0° lon.), that runs through Greenwich, England. degrees_east lon
latitude_seconds Fraction of lat_min divided by 60. 0.0 60.0 angular_second lat_sec
latitude_minutes Fraction of latitude degree divided by 60. 0.0 60.0 angular_minute lat_min
latitude_hemisphere Northern or Southern hemisphere N | S lat_hem
latitude_degrees Integer degrees of latitude degrees_north lat_deg
latitude Y-coordinate of dependent observation in geographic coordinate. North is positive. Alternate definition: The angular distance north and south of the equator, with the equator being 0° and the poles 90°. degrees_north lat
initial_bin_distance Distance from instrument to first bin measurement meters init_bin_dist
height Z-coordinate of observation in vertical distance above reference. Up is positive. meter height
gps_elevation Elevation from where the GPS reading was made km gps_elev
eastward_wind East/West component of wind vector. Eastward wind is positive. m s-1 east_wind
day_of_year Number of days since day 1 of reference year. 0.0 366.0 days doy
dew_point_temperature Temperature at which air begins to condense. celsius dew_point
depth Z-coordinate of observation in vertical distance below reference. Down is positive. 0.0 300.0 meter/decibar depth
water_density Mass of water per unit volume kg m-3 density
date_time_string Date and time character string of observation that includes year, month, day, hour, minute and second. string YYYY MM DD hh mm ss date_time_string
conductivity Ability of a material to pass an electrical current. Inverse of resistance. siemens | uS cond
cloud_cover Percent of sky covered by clouds of all types. 0.0 100.0 percent cloud cover
chl_concentration concentration of chloropyll-a in a defined volume of water ug L-1 (not kg m-3) chl_conc
cdom colored (or chromophoric) dissolved organic matter, of riverine origin mg/l or 1/m cdom
current_speed Magnitude of velocity of ocean current. 0.0 360.0 cm s-1 c_spd
current_to_direction Direction towards which ocean current is going. 0.0 360.0 degrees_true c_dir
bw_radiance Radiance for black body and white light source. W m-2 sr-1 bw_rad
bw_irradiance Irradiance for black body and white light source. W m-2 bw_irrad
btm_track_heading Heading in degrees to by a series of long pulses sent out from ADCP degrees btm_track_hdg
bottom_tracking_depth Distance to sea floor determined by a series of long pulses sent out from ADCP meters btm_track_depth
bottom Ocean bottom. bottom
bin_width Width distance between bins meters bin_width
bin_velocity Current velocity of bin cm s-1 bin_vel
bin_v_vector North/South component of bin vector. Northward is positive. cm s-1 bin_v
bin_u_vector East/West component of bin vector. Eastward is positive. cm s-1 bin_u
bin_direction Current direction of bin 0.0 360.0 cm s-1 bin_dir
beam_velocity Current velocity measured parallel to the path of an Acoustic Doppler Current Profiler beam -300.0 300.0 cm s-1 beam_vel
beam_echo_intensity Measure of the echo intensity returning to beam 1 from the ADCP transmit pulse 0.0 200.0 db beam_echo
beam4_velocity Current velocity measured parallel to the path of beam 4 cm s-1 beam4_vel
beam4_echo_intensity Measure of the echo intensity returning to beam 4 from the ADCP transmit pulse 0.0 200.0 db beam4_echo
beam3_velocity Current velocity measured parallel to the path of beam 3 cm s-1 beam3_vel
beam3_echo_intensity Measure of the echo intensity returning to beam 3 from the ADCP transmit pulse 0.0 200.0 db beam3_echo
beam2_velocity Current velocity measured parallel to the path of beam 2 cm s-1 beam2_vel
beam2_echo_intensity Measure of the echo intensity returning to beam 2 from the ADCP transmit pulse 0.0 db beam2_echo
beam1_velocity Current velocity measured parallel to the path of beam 1 -300.0 300.0 cm s-1 beam1_vel
beam1_echo_intensity Measure of the echo intensity returning to beam 1 from the ADCP transmit pulse 0.0 200.0 db beam1_echo
averaging_interval Time periood over which several observations are averaged. seconds average_interval
light_attenuation_coefficient Measure of combined effects on light caused by absorption and scattering over a defined distance for a specific wavelength of light. m-1 attenuate
altitude Z-coordinate of observation in vertical distance above reference. Up is positive. meter altitude
albedo Fraction of downward radiation that is reflected or scattered 0.0 1.0 alb
air_temperature Temperature of air (in situ). 10.0 38.0 celsius air_temp
air_pressure Pressure exerted by overlying air. 822.0 1040.0 hPa air_press
air_density Mass of air per unit volume. kg m-3 air density
remote_sensing_spectral_reflectance Upwelling radiance (Lu) divided by downwelling radiance (Ed) at a specific spectral wavelength. sr-1 Rrs
spectral_reflectance Upwelling irradiance (Eu) divided by downwelling radiance (Ed) at a specific spectral wavelength. R
net_shortwave_radiation Net solar insolation considering albedo effects. Positive is downward. 0.0 1400.0 W m-2 Q_sw
sensible_heat_flux Conductive or convective exchange of heat from the atmosphere to the ocean. Positive is downward. W m-2 Q_sensible
net_heat_flux Combined net shortwave, net longwave, sensible and latent heat fluxes. Positive is downward. W m-2 Q_net
net_longwave_radiation Net IR radiation includes reflected IR radiation. Positive is downward. W m-2 Q_lw
latent_heat_flux Evaporative exchange of heat from the atmosphere to the ocean. Positive is downward. W m-2 Q_latent
downward_shortwave_radiation Downward solar insolation. Positive is downward. 0.0 1400.0 W m-2 Q_dsw
downward_longwave_radiation Downward IR radiation. Positive is downward. 250.0 450.0 W m-2 Q_dlw
photosynthetically_available_radiation Integrated downwelling irradiance for wavelengths from 400 to 700nm. W m-2 PAR
water_leaving_radiance Radiance from below, leaving the water surface. W m-2 m-1 sr-1 Luw
upwelling_radiance Radiance from above. W m-2 m-1 sr-1 Lu
downwelling_radiance Radiance from below. W m-2 m-1 sr-1 Ld
spectral_radiance Light energy of specific wavelength from a set of directions (solid angle) at a point and time in space. W m-2 m-1 sr-1 L
upwelling_irradiance Irradiance from below W m-2 m-1 Eu
downwelling_irradiance Irradiance from above. W m-2 m-1 Ed
spectral_irradiance Light energy of specific wavelength from all directions at a point and time in space. W m-2 m-1 E