acres (integer)
The acreage of this unit. The default value is zero.

aspect (double)
The compass direction that the slope faces in degrees. 0° corresponds to north, increasing to 360° along a full clockwise rotation. The default value is zero.

aspectName (string)
A description of the aspect. The default is an empty string.

currentState (string)

elevation (integer)
The elevation of this unit in meters. The default value is zero.

group (string)
Represents a valley bottom land type association, which is a portion of the Rosgen Stream Classification System. The valley type classification influences the hydrologic processes that help determine stream channel form. Supported values are 12-FMA, 12-FWC, 12-FWB, 45-41-FMA, 45-41-FNA, 51-FMA, 51-UWB, 51-FWB, and 62-72-FNA. The default is no group.

id (integer, required)
A positive number that uniquely identifies this unit. The number only needs to be unique to the element type, not all natural elements.

initialProcess (string)

length (integer)

segmentNumber (integer)

slope (float)
The percent rise of this unit, calculated as rise / run x 100. The default value is zero.

status (string)
Valid values are PERENNIAL and INTERMITTENT. The default value is PERENNIAL.