Citation:

PANGAEA.942230

Name: Colour reflectance measurements on sediment core PS72/410-3
Published: 2024-03-31
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Arctic Ocean; colour reflectance measurements

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Abstract:

This data set comprises colour reflectance measurements conducted with a hand-held spectrophotometer (Minolta CM 2002, lens diameter 8mm, field of view 0.8 cm2) at wave lengths from 400 to 700 nm, connected to a Macintosh Powerbook 5300C. Output files are the L*a*b* colour space that is also referred to as CIELAB space (Commission Internationale de l'Éclairage L*a*b colour space 1976), the chroma, hue and value of the Munsell Colour Chart (http://www.munsell.com), the percentage value of the spectrum at 10 nm steps from 400 to 700nm, and the colour values x,y and z that are defined according to the RGB colour space (CIE 1931). Lightness L* (grey scale) is recorded from 0 % (black) to 100% (white), the red-green colour space a* from -4 (green) to 16 (red), and the yellow-blue colour space b* from 0 (blue) to 40 (yellow). The spectral reflectance was measured at cm intervals on freshly split core surfaces that were covered with transparent foil. Every core section was measured separately, and a white calibration first without and then with foil was conducted before and after each core section to identify a possible drift of the spectrophotometer measurements. The raw spectral photometer data were edited by removing obvious outliers e.g. unrealistic values due to uneven core surfaces and erroneous measurements.

Keyword(s):

Arctic Ocean; colour reflectance measurements

Project(s):

Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)

Coverage:

Latitude: 80.523100 * Longitude: -175.719700

Date/Time Start: 2008-09-24T01:40:00 * Date/Time End: 2008-09-24T01:40:00

Minimum DEPTH, sediment/rock: 0.09 m * Maximum DEPTH, sediment/rock: 7.63 m

Event(s):

PS72/410-3 * Latitude: 80.523100 * Longitude: -175.719700 * Date/Time: 2008-09-24T01:40:00 * Elevation: -1854.0 m * Penetration: 8.5 m * Recovery: 7.64 m * Location: Arctic Ocean * Campaign: (PS72) * Basis: * Method/Device: Kasten corer (KAL) * Comment: 8 core sections: 0-0.87, 0.87-1.87, 1.87-2.86, 2.86-3.85, 3.85-4.85, 4.85-5.85, 5.85-6.83, 6.83-7.58 m

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Matthiessen, Jens		Geocode
2	Color, L*, lightness	L*		Matthiessen, Jens	Spectrophotometer Minolta CM-2002
3	Color, a*	a*		Matthiessen, Jens	Spectrophotometer Minolta CM-2002
4	Color, b*	b*		Matthiessen, Jens	Spectrophotometer Minolta CM-2002
5	Color code HLS-system	Color HLS		Matthiessen, Jens	Munsell Color System (1994)
6	Color reflectance at 400 nm	Color 400	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
7	Color reflectance at 410 nm	Color 410	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
8	Color reflectance at 420 nm	Color 420	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
9	Color reflectance at 430 nm	Color 430	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
10	Color reflectance at 440 nm	Color 440	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
11	Color reflectance at 450 nm	Color 450	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
12	Color reflectance at 460 nm	Color 460	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
13	Color reflectance at 470 nm	Color 470	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
14	Color reflectance at 480 nm	Color 480	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
15	Color reflectance at 490 nm	Color 490	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
16	Color reflectance at 500 nm	Color 500	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
17	Color reflectance at 510 nm	Color 510	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
18	Color reflectance at 520 nm	Color 520	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
19	Color reflectance at 530 nm	Color 530	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
20	Color reflectance at 540 nm	Color 540	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
21	Color reflectance at 550 nm	Color 550	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
22	Color reflectance at 560 nm	Color 560	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
23	Color reflectance at 570 nm	Color 570	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
24	Color reflectance at 580 nm	Color 580	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
25	Color reflectance at 590 nm	Color 590	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
26	Color reflectance at 600 nm	Color 600	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
27	Color reflectance at 610 nm	Color 610	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
28	Color reflectance at 620 nm	Color 620	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
29	Color reflectance at 630 nm	Color 630	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
30	Color reflectance at 640 nm	Color 640	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
31	Color reflectance at 650 nm	Color 650	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
32	Color reflectance at 660 nm	Color 660	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
33	Color reflectance at 670 nm	Color 670	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
34	Color reflectance at 680 nm	Color 680	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
35	Color reflectance at 690 nm	Color 690	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
36	Color reflectance at 700 nm	Color 700	%	Matthiessen, Jens	Spectrophotometer Minolta CM-2002
37	Color, X	X		Matthiessen, Jens	Spectrophotometer Minolta CM-2002
38	Color, Y	Y		Matthiessen, Jens	Spectrophotometer Minolta CM-2002
39	Color, Z	Z		Matthiessen, Jens	Spectrophotometer Minolta CM-2002

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

27397 data points

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