Sediment Colour (SCO)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

Name

sedimentColour

Datatype

Enumeration

Definition

The general colour of a waterbody sediment based on the Geological Society of America (GSA) rock colour chart and the Munsell colour system.

Description

The Munsell system is based on a colour solid, or approximately a colour sphere, which has a neutral gray central axis grading from white at the top to black at the bottom. This property of lightness is called value. Around the circumference or equator of the solid are the ten major hues, each of which is divided into ten numbered divisions, so that 5 marks the middle of the hue, and 10 marks the boundary between one hue and the next. Thus, any particular hue can be designated by a number and a letter such as 5R or 10YR. Any single vertical section through the neutral gray axis and a particular hue constitutes a colour chart on which the colors grade in value from light at the top to dark at the bottom, and in chroma (degree of saturation) from gray at one edge to the most vivid colors out at the margin. Both value and chroma are numbered so any particular colour can be given a numerical designation representing hue, value, and chroma such as 5R 6/4 and 10YR 8/2. Colour names are based on the Inter-Society Color Council-National Bureau of Standards system of names.

Accepted

2013-10-18

Defined by

DFDD

Values

SCO_1 Grayish Green
SCO_10 Dark Reddish Brown
SCO_11 Grayish Red
SCO_12 Moderate Reddish Brown
SCO_13 Pale Reddish Brown
SCO_14 Pale Red
SCO_15 Moderate Reddish Orange
SCO_16 Moderate Orange Pink
SCO_17 Grayish Orange Pink
SCO_18 Greenish Olive
SCO_19 Light Olive
SCO_2 Pale Grayish Green
SCO_20 Pale Olive
SCO_21 Dark Greenish Yellow
SCO_22 Moderate Greenish Yellow
SCO_23 Pale Greenish Yellow
SCO_24 Dusky Green
SCO_25 Moderate Grayish Green
SCO_26 Moderate Green
SCO_27 Brilliant Green
SCO_28 Pale Green
SCO_29 Light Green
SCO_3 Very Pale Green
SCO_30 Light Yellowish Green
SCO_31 Very Dusky Purple
SCO_32 Pale Purple
SCO_33 Very Dark Red
SCO_34 Dusky Red
SCO_35 Moderate Red
SCO_36 Light Red
SCO_37 Moderate Pink
SCO_38 Very Dusky Red Purple
SCO_39 Pale Red Purple
SCO_4 Dusky Yellowish Green
SCO_40 Pale Pink
SCO_41 Moderate Olive Brown
SCO_42 Light Olive Brown
SCO_43 Dusky Yellow
SCO_44 Moderate Yellow
SCO_45 Grayish Yellow
SCO_46 Dusky Blue Green
SCO_47 Light Blue Green
SCO_48 White
SCO_49 Black
SCO_5 Dark Yellowish Green
SCO_6 Grayish Yellowish Green
SCO_7 Moderate Yellowish Green
SCO_8 Pale Yellowish Green
SCO_9 Very Dusky Red

Used by

BC011 Maritime Bottom Characteristic