Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Roelfsema, Christiaan M; Phinn, Stuart R (2012): Spectral reflectance library of selected biotic and abiotic coral reef features in Heron Reef. Centre for Remote Sensing & Spatial Information Science, School of Geography, Planning & Environmental Management, University of Queensland, Brisbane, Australia, PANGAEA, https://doi.org/10.1594/PANGAEA.804589

Always quote above citation when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Underwater spectral reflectance was measured for selected biotic and abiotic coral reef features of Heron Reef from June 25-30, 2006. Spectral reflectance's of 105 different benthic types were obtained in-situ. An Ocean Optics USB2000 spectrometer was deployed in an custom made underwater housing with a 0.5 m fiber-optic probe mounted next to an artificial light source. Spectral readings were collected with the probe(bear fibre) about 5 cm from the target to ensure that the target would fill the field of view of the fiber optic (FOV diameter ~4.4 cm), as well as to reduce the attenuating effect of the intermediate water (Roelfsema et al., 2006). Spectral readings included for one target included: 1 reading of the covered spectral fibre to correct for instrument noise, 1 reading of spectralon panel mounted on divers wrist to measure incident ambient light, and 8 readings of the target. Spectral reflectance was calculated for each target by first subtracting the instrument noise reading from each other reading. The corrected target readings were then divided by the corrected spectralon reading resulting in spectral reflectance of each target reading. An average target spectral reflectance was calculated by averaging the eight individual spectral reflectance's of the target. If an individual target spectral reflectance was visual considered an outlier, it was not included in the average spectral reflectance calculation. See Roelfsema at al. (2006) for additional info on the methodology of underwater spectra collection.
Related to:
Leiper, Ian A; Phinn, Stuart R; Dekker, Arnold G (2012): Spectral reflectance of coral reef benthos and substrate assemblages on Heron Reef, Australia. International Journal of Remote Sensing, 33(12), 3946-3965, https://doi.org/10.1080/01431161.2011.637675
Roelfsema, Christiaan M; Marshall, John; Phinn, Stuart R; Joyce, Karen (2006): Underwater Spectrometer System 2006 (UWSS04) - Manual. Biophysical Remote Sensing Group, Centre for Spatial Environmental Research, University of Queensland, Australia, 28 pp, hdl:10013/epic.40554.d003
Coverage:
Median Latitude: -23.440702 * Median Longitude: 151.916501 * South-bound Latitude: -23.455083 * West-bound Longitude: 151.905167 * North-bound Latitude: -23.433417 * East-bound Longitude: 151.925367
Date/Time Start: 2006-06-25T14:00:00 * Date/Time End: 2006-06-30T14:00:00
Minimum Elevation: -9.0 m * Maximum Elevation: -1.0 m
Event(s):
01_Montipora * Latitude: -23.434600 * Longitude: 151.921967 * Date/Time: 2006-06-25T14:00:00 * Elevation: -5.0 m * Location: Blue Pools, Heron Reef, Australia * Device: Spectrophotometer (SPEC) * Comment: Live Montipora sp. coral - Fiber optic cable thickness: 100 [µm], integration time: 150 [ms], distance to subject: 5 [cm]
02_Chlorodesmis * Latitude: -23.434600 * Longitude: 151.921967 * Date/Time: 2006-06-25T14:00:00 * Elevation: -5.0 m * Location: Blue Pools, Heron Reef, Australia * Device: Spectrophotometer (SPEC) * Comment: Chlorodesmis sp.(Algae) - Fiber optic cable thickness: 100 [µm], integration time: 100 [ms], distance to subject: 5 [cm]
03_Montipora-blue * Latitude: -23.434600 * Longitude: 151.921967 * Date/Time: 2006-06-25T14:00:00 * Elevation: -5.0 m * Location: Blue Pools, Heron Reef, Australia * Device: Spectrophotometer (SPEC) * Comment: Live Montipora sp. coral with blue color - Fiber optic cable thickness: 100 [µm], integration time: 100 [ms], distance to subject: 5 [cm]
Comment:
The original file version in excel format is linked at "Other version:"
Higher resolution photos of selected coral reef target features taken from Heron Reef from June 25-30, 2006 are provided in a pdf-file linked at "Further details:"
The data publication workflow is documented in http://issues.pangaea.de/browse/PDI-3643.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEvent
2Date/Time of eventDate/Time
3Location of eventLocation
4Latitude of eventLatitude
5Longitude of eventLongitude
6Elevation of eventElevationm
7WavelengthLambdanmcentre
8Reflectance, totalRefl totRoelfsema, Christiaan MSpectrophotometer, Ocean Optics USB2000
9Comment of eventComment
Size:
240368 data points

Download Data

Download dataset as tab-delimited text (use the following character encoding: )

View dataset as HTML (shows only first 2000 rows)