Attribute: Depth range value 1

Acronym: DRVAL1

Code: 87

Attribute type: F

Definition:

The minimum (shoalest) value of a depth range.

References:

INT 1: II 21; IM 6;

S-4: 414; 432.4; 434.3-4;

Indication:

Unit: defined in the DUNI subfield of the DSPM record or in the DUNITS attribute of the M_UNIT meta object class, e.g. metre (m)

Resolution: 0.1 m or 0.1 fm or 0.1 ft

Format:

sxxxxx.x s: sign, negative values only.

Example:

50 for a minimum depth of 50 metres.

Remarks:

Where the area dries, the value is negative.