Additional Attributes

Definition

The <Additional_Attributes> field describes product specific attributes (i.e. attributes used to describe the unique characteristics of the data collection, which extend beyond those defined in the dataset collection model).

  • <Name>The product specific attribute name.
  • <DataType> The data type of the parameter.
  • <Description> The description for the attribute name.
  • <MeasurementResolution>Identifies the smallest unit increment to which the parameter value is measured.
  • <ParameterRangeBegin>Provides the minimum value of the parameter over the whole.
  • <ParameterRangeEnd>Provides the maximum value of the parameter over the whole.
  • <ParameterUnitsOfMeasure>The standard unit of measurement for a non-core attribute.
  • <ParameterValueAccuracy>An estimate of the accuracy of the attribute value.
  • <ValueAccuracyExplanation>Defines the method used for determining the parameter value accuracy that is given for this non-core attribute.
  • <Value>Contains the value of the additional attribute for all granules across a given collection.

 

 
Syntax
<Additional_Attributes>    
   <Name>Text</Name>    
   <DataType>Text</DataType>    
   <Description>Text</Description>    
   <MeasurementResolution>Number</MeasurementResolution>    
   <ParameterRangeBegin>Number</ParameterRangeBegin>    
   <ParameterRangeEnd>Number</ParameterRangeEnd>    
   <ParameterUnitsOfMeasure>Text</ParameterUnitsOfMeasure>    
   <ParameterValueAccuracy>Text</ParameterValueAccuracy>    
   <ValueAccuracyExplanation>Text</ValueAccuracyExplanation>    
   <Value>Text</Value>  
</Additional_Attributes> 
 
Usage
  • <Additional_Attributes> is recommended and may be repeated.
  • <Additional_Attributes> sub-fields are not repeatable.
  • <Name> sub-field is required. May contain up to 80 characters.
  • <DataType> sub-field is required. Uses ECHO's recommended DateType lists.
  • <Description> sub-field is required. May contain up to 2048 characters.
  • <MeasurementResolution> sub-field is not required. May contain up to 80 characters.
  • <ParameterRangeBegin> sub-field is required. May contain up to 80 characters.
  • <ParameterRangeEnd> sub-field is not required. May contain up to 80 characters.
  • <ParameterUnitsOfMeasure> sub-field is not required. May contain up to 80 characters.
  • <ParameterValueAccuracy> sub-field is not required. May contain up to 80 characters.
  • <ValueAccuracyExplanation> sub-field is not required. May contain up to 2048 characters.
  • <Value> sub-field is not required. May contain up to 500 characters.
Example
<Additional_Attributes>  
 <Name>SuccessCloudPhaseRtrPct_IR</Name>  
 <DataType>FLOAT</DataType>  
 <Description>None</Description> 
</Additional_Attributes>
<Additional_Attributes>
             <Name>AIRSAR_FLIGHT_LINE</Name>
             <DataType>FLOAT</DataType>
             <Description>instrument flight line data</Description>
             <MeasurementResolution>10m</MeasurementResolution>    
             <ParameterRangeBegin>1m</ParameterRangeBegin>    
             <ParameterRangeEnd>10m</ParameterRangeEnd>    
             <ParameterUnitsOfMeasure>meter</ParameterUnitsOfMeasure>    
             <ParameterValueAccuracy>90%</ParameterValueAccuracy>    
             <ValueAccuracyExplanation>Accuracy of flight measurement based on standard data collection.</ValueAccuracyExplanation>    
             <Value>mammoth_138.90021</Value>  
             >/Additional_Attributes>
        

 

This document should be cited as:
Directory Interchange Format (DIF) Writer's Guide, 2018.
Global Change Master Directory.
National Aeronautics and Space Administration.
[https://gcmd.gsfc.nasa.gov/add/difguide/].