<simpleType name="DiggsGravitationalGradientUomEnumBaseType">
  <annotation>
    <documentation>This enumerated list adds a new quantity class to the Energistics Unit Dictionary (gravitational gradient) to provide units for gravity survey results</documentation>
  </annotation>
  <restriction base="eml:UomEnum">
    <enumeration value="1/s2">
      <annotation>
        <documentation>per second squared</documentation>
      </annotation>
    </enumeration>
    <enumeration value="E">
      <annotation>
        <documentation>Eötvös unit</documentation>
      </annotation>
    </enumeration>
    <enumeration value="mGal/min">
      <annotation>
        <documentation>milligal per minute</documentation>
      </annotation>
    </enumeration>
    <enumeration value="Gal/min">
      <annotation>
        <documentation>gal per minute</documentation>
      </annotation>
    </enumeration>
  </restriction>
</simpleType>