High angular and spectral directional reflectance dataset of snow and sea-ice

Name: High angular and spectral directional reflectance dataset of snow and sea-ice
Published: 2015
License: https://creativecommons.org/licenses/by-nc/4.0/
Keywords: HDRF, BRDF, snow, ice, meltpond, Arctic, reflectance, multispectral, hyperspectral, hyperangular, ASD, CE600, directional reflectance, GreenEdge, satellite, validation, albedo, surface reflectance, fish-eye camera

Date

2015

Temporal extent

2015-05-22 - 2015-06-07

Authors

Goyens Clémence ¹, Marty Sabine ², Leymarie Edouard ², Antoine David ^2,3, Babin Marcel ⁴, Bélanger Simon ¹

Affiliations

Université du Québec à Rimouski, Département de biologie, chimie et géographie, BOREAS et Québec‐OcéanRimouski, Québec, Canada
Sorbonne Universités, UPMC Univ Paris 06, INSU‐CNRS, Laboratoire d'Océanographie de VillefrancheVillefranche‐sur‐Mer, France
Remote Sensing and Satellite Research Group, Department of Physics and Astronomy, Curtin UniversityPerth, Western Australia, Australia
Takuvik Joint International Laboratory, Québec‐Océan, CNRS (France) and ULaval (Canada), Pavillon Alexandre Vachon, Département de Biologie, Université LavalQuébec, Québec, Canada

DOI

10.17882/55352

Publisher

SEANOE

This dataset includes the data published in Goyens et al. (2018, DOI:10.1002/2017EA000332). It provides the following parameters for the different ice, snow and ponded ice stations of the GreenEdge Ice Camp 2015:

the hyperspectral (400-1000 nm) Hemispherical Directional Reflectance Factor (HDRF, units: dimensionless) measured with Analytical Spectral Device, Inc. (ASD) over a full hemisphere with 30° angular resolution along zenith and azimuth,
the hyperangular (full hemisphere at 1° angular resolution) multispectral (438, 560 and 628 nm) upwelling irradiance (Lu, units: µW.cm^-2.sr^-1.nm^-1) measured with a circular fish‐eye radiance camera (CE600) (median Lu and coefficient of variation are provided, see Goyens et al. (2018, DOI:10.1002/2017EA000332 for more info about data processing)
the multispectral (at 406.42, 434.48, 442.33, 489.70, 508.43, 560.22 and 624.20 nm) downwelling irradiance (Ed, units: µW.cm^-2.nm^-1) measured with the OCR from Satlantic,
the hyperangular HDRF (units: dimensionless) estimated as PI times the ratio of Lu CE600 to Ed OCR at 438, 560 and 628 nm (median and coefficient of variation are provided, see Goyens et al. (2018, DOI:10.1002/2017EA000332 for data processing), and,
the columnar aerosol optical depth (AOD, units: dimensionless) at 440, 500, 675, 870 and 936 nm estimated from a Handheld 5-channel Sunphotometer Microtops II.

Disciplines

Cryosphere, Environment, Atmosphere

Keywords

HDRF, BRDF, snow, ice, meltpond, Arctic, reflectance, multispectral, hyperspectral, hyperangular, ASD, CE600, directional reflectance, GreenEdge, satellite, validation, albedo, surface reflectance, fish-eye camera

Location

67.7N, 67.4S, -63.3E, -64.4W

Licence

Utilisation

Data are published without any warranty, express or implied. The user assumes all risk arising from his/her use of data. Data are intended to be research-quality and include estimates of data quality and accuracy, but it is possible that these estimates or the data themselves contain errors. It is the sole responsibility of the user to assess if the data are appropriate for his/her use, and to interpret the data, data quality, and data accuracy accordingly. Authors welcome users to ask questions and report problems.

Acknowledgements

Special thanks goes to Pierre Larouche for having graciously provided the ASD instrument and Don Perovich his metal arch for the ASD setup. This work was partially funded by the European Space Agency through the ESA Living Planet Fellowship Program and carried out in the frame of the GreenEdge project (http://www.greenedgeproject. info). The GreenEdge project is funded by the following French and Canadian programs and agencies: ANR (contract 111112), CNES (project 131425), IPEV (project 1164), CSA, Fondation Total, ArcticNet, LEFE, and the French Arctic Initiative (GreenEdge project). This project would not have been possible without the support of the Hamlet of Qikiqtarjuaq and the members of the community as well as the Inuksuit School and its Principal Jacqueline Arsenault. The project is conducted under the scientific coordination of the Canada Excellence Research Chair on Remote sensing of Canada’s new Arctic frontier and the CNRS and Université Laval Takuvik Joint International Laboratory (UMI3376). The field campaign was successful thanks to the contribution of J. Ferland, G. Bécu, C. Marec, J. Lagunas, F. Bruyant, J. Lariviére, E. Rehm, S. Lambert-Girard, C. Aubry, C. Lalande, A. LeBaron, C. Marty, J. Sansoulet, D. Christiansen-Stowe, A. Wells, M. Benoît-Gagné, E. Devred, and M.-H. Forget from the Takuvik laboratory, C.J. Mundy and V. Galindo from University of Manitoba, and F. Pinczon du Sel and E. Brossier from Vagabond. We also thank Michel Gosselin, Québec-Océan, the CCGS Amundsen, and the Polar Continental Shelf Program for their in-kind contribution in polar logistic and scientific equipment.

Devices

(1) ASD HDRF

Instrument Type: hyperspectral field spectrometer ASD
Manufacturer: ASD Inc.
Model: ASD FieldSpec Dual instrument #9106 - radiance (10° field of view) and cosine irradiance sensors
Instrument Features / Calibration: hyperspectral (350-1000 nm) radiance (10° field of view) and cosine irradiance sensors (raw data only – not calibrated)

(2) Lu and HDRF CE600

Instrument Type: Fish-eye multispectral radiance camera CE600 (more details in Antoine et al., 2013, http://archimer.ifremer.fr/doc/00185/29659/)
Manufacturer: CIMEL Electronics in collaboration with Laboratoire d’Océanographie de Villefranche sur Mer (LOV)
Model: CE600 SN
Instrument Features / Calibration: Calibrated (at LOV) radiance measurement at 438, 560 and 628 nm over a full hemisphere (184° field of view)

(3) Ed OCR

Instrument Type: SATLANTIC OCR IRRADIANCE SENSOR
Manufacturer: SATLANTIC
Model: Satlantic OCR SN 286
Instrument Features / Calibration: Calibrated (at LOV) cosine irradiance sensor at 406.42, 434.48, 442.33, 489.70, 508.43, 560.22 and 624.20 nm
sensor precision: 1-2%

(4) AOD

Instrument Type: Handheld 5-channel Sunphotometer Microtops II
Manufacturer: Solar Light Company, Inc.
Model: Microtops II SN 03766
Instrument Features / Calibration: Calibrated spectral measurements at 440, 500, 675, 870 and 936 nm of the direct solar radiation for the estimation of columnar aerosol optical depth (AOD)
sensor precision: 1-2%

Data

File	Size	Format	Processing
Downwelling irradiance Ed from OCR satlantic	6 Mo	CSV	Quality controlled data	Download
Aerosol Optical Thickness AOT from MICROTOPS	5 Ko	CSV	Quality controlled data	Download
CE600 HDRF (median and coefficient of variation) for meltpond, ice and snow surfaces - name convention: CE600_[solar zenith angle][surface]hdrf.dat	2 Mo	CSV	Processed data	Download
CE600 Lu (median and coefficient of variation) for meltpond, ice and snow surfaces - name convention: CE600_[solar zenith angle][surface]Lu.dat	2 Mo	CSV	Processed data	Download
ASD HDRF for meltpond, ice and snow surfaces - name convention: ASD[solar zenith angle][surface]_hdrf.dat	250 Ko	CSV	Processed data	Download

How to cite

Goyens Clémence, Marty Sabine, Leymarie Edouard, Antoine David, Babin Marcel, Bélanger Simon (2015). High angular and spectral directional reflectance dataset of snow and sea-ice. SEANOE. https://doi.org/10.17882/55352

In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication :

Goyens C., Marty S., Leymarie E., Antoine D., Babin M., Bélanger S. (2018). High Angular Resolution Measurements of the Anisotropy of Reflectance of Sea Ice and Snow. Earth and Space Science, 5 (1), 30-47. https://doi.org/10.1002/2017EA000332

Copy this text

Sea scientific
open data
publication

High angular and spectral directional reflectance dataset of snow and sea-ice

Disciplines

Keywords

Location

Devices

Data

Sea scientific
open data
publication

High angular and spectral directional reflectance dataset of snow and sea-ice

Disciplines

Keywords

Location

Devices

Data

Sea scientificopen datapublication

Sea scientific
open data
publication