<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="Tethys/Universal"
    elementFormDefault="qualified"
    xmlns="http://www.w3.org/2001/XMLSchema"
    xmlns:Universal="Tethys/Universal"
    xmlns:Tethys="Tethys">

    <import namespace="Tethys" schemaLocation="Tethys.xsd"/>

    <element id="DEPTH" name="depth" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="DEPTH_RATE" name="depth_rate" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="DIRECTION_OF_SEA_WATER_VELOCITY" name="direction_of_sea_water_velocity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="DOWNWARD_SEA_WATER_VELOCITY" name="downward_sea_water_velocity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="EASTWARD_SEA_WATER_VELOCITY" name="eastward_sea_water_velocity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="GRID_LATITUDE" name="grid_latitude" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="GRID_LONGITUDE" name="grid_longitude" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="HEIGHT_ABOVE_SEA_FLOOR" name="height_above_sea_floor" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="NORTHWARD_SEA_WATER_VELOCITY" name="northward_sea_water_velocity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="LATITUDE" name="latitude" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="LATITUDE_FIX" name="latitude_fix" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="LONGITUDE" name="longitude" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="LONGITUDE_FIX" name="longitude_fix" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="MASS_CONCENTRATION_OF_CHLOROPHYLL_IN_SEA_WATER" name="mass_concentration_of_chlorophyll_in_sea_water" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="MASS_CONCENTRATION_OF_OXYGEN_IN_SEA_WATER" name="mass_concentration_of_oxygen_in_sea_water" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="MOLE_CONCENTRATION_OF_NITRATE_IN_SEA_WATER" name="mole_concentration_of_nitrate_in_sea_water" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_BATTERY_CHARGE" name="platform_battery_charge" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_BATTERY_VOLTAGE" name="platform_battery_voltage" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_BATTERY_FULLY_CHARGED" name="platform_battery_fully_charged" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_BATTERY_DISCHARGING" name="platform_battery_discharging" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_COMMUNICATIONS" name="platform_communications" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_CONVERSATION" name="platform_conversation" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_COURSE" name="platform_course" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_ELEVATOR_ANGLE" name="platform_elevator_angle" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_FAULT" name="platform_fault" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_FAULT_LEAK" name="platform_fault_leak" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_MAGNETIC_ORIENTATION" name="platform_magnetic_orientation" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_MASS_POSITION" name="platform_mass_position" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_ORIENTATION" name="platform_orientation" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_PITCH_ANGLE" name="platform_pitch_angle" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_PITCH_RATE" name="platform_pitch_rate" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_PRESSURE" name="platform_pressure" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_PROPELLER_ROTATION_RATE" name="platform_propeller_rotation_rate" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_RELATIVE_HUMIDITY" name="platform_relative_humidity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_ROLL_ANGLE" name="platform_roll_angle" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_ROLL_RATE" name="platform_roll_rate" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_RUDDER_ANGLE" name="platform_rudder_angle" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_BUOYANCY_POSITION" name="platform_buoyancy_position" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_SPEED_WRT_GROUND" name="platform_speed_wrt_ground" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_SPEED_WRT_SEA_WATER" name="platform_speed_wrt_sea_water" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_TEMPERATURE" name="platform_temperature" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_X_SEA_WATER_VELOCITY" name="platform_x_sea_water_velocity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_X_VELOCITY_WRT_GROUND" name="platform_x_velocity_wrt_ground" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_Y_SEA_WATER_VELOCITY" name="platform_y_sea_water_velocity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_Y_VELOCITY_WRT_GROUND" name="platform_y_velocity_wrt_ground" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_YAW_ANGLE" name="platform_yaw_angle" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_YAW_RATE" name="platform_yaw_rate" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_Z_SEA_WATER_VELOCITY" name="platform_z_sea_water_velocity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="PLATFORM_Z_VELOCITY_WRT_GROUND" name="platform_z_velocity_wrt_ground" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_FLOOR_DEPTH_BELOW_GEOID" name="sea_floor_depth_below_geoid" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_DENSITY" name="sea_water_density" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_ELECTRICAL_CONDUCTIVITY" name="sea_water_electrical_conductivity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_POTENTIAL_DENSITY" name="sea_water_potential_density" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_POTENTIAL_TEMPERATURE" name="sea_water_potential_temperature" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_PRESSURE" name="sea_water_pressure" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_SALINITY" name="sea_water_salinity" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_SIGMA_T" name="sea_water_sigma_t" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_SIGMA_THETA" name="sea_water_sigma_theta" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_SPEED" name="sea_water_speed" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="SEA_WATER_TEMPERATURE" name="sea_water_temperature" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="TIME" name="time" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="TIME_FIX" name="time_fix" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="UPWARD_DERIVATIVE_OF_SEA_WATER_TEMPERATURE" name="upward_derivative_of_sea_water_temperature" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>
    <element id="VOLUME_BACKWARDS_SCATTERING_COEFFICIENT_OF_RADIATIVE_FLUX_IN_SEA_WATER" name="volume_backwards_scattering_coefficient_of_radiative_flux_in_sea_water" substitutionGroup="Tethys:UniversalUri" type="Tethys:UniversalUriType"/>

</schema>