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Cooper, Matthew G; Smith, Laurence C; Rennermalm, Asa K; Tedesco, Marco; Muthyala, Rohi; Leidman, Sasha Z; Moustafa, Samiah E; Fayne, Jessica V (2021): (Table A2) Optical attenuation coefficients of glacier ice layer A (12-77 cm ice depth) from 350-700 nm (West Greenland) [dataset]. University of California, Los Angeles, PANGAEA, https://doi.org/10.1594/PANGAEA.930270, In: Cooper, MG et al. (2021): Optical attenuation coefficients of glacier ice from 350-700 nm and raw irradiance values from 350-900 nm [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.930278

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Abstract:
Formal estimates of attenuation coefficient for Layer A, interpolated to 1 nm resolution using a convolution (Savitsky-Golay) filter, and reported for the useable range of values, as described in the article.
Keyword(s):
Albedo; attenuation coefficient; extinction coefficient; glacier ice; ICESat-2; Lidar; Mie theory; subsurface melting; transmittance; two stream theory
Related to:
Cooper, Matthew G; Smith, Laurence C; Rennermalm, Asa K; Tedesco, Marco; Muthyala, Rohi; Leidman, Sasha Z; Moustafa, Samiah E; Fayne, Jessica V (2021): Spectral attenuation coefficients from measurements of light transmission in bare ice on the Greenland Ice Sheet. The Cryosphere, 15(4), 1931-1953, https://doi.org/10.5194/tc-15-1931-2021
Further details:
Cooper, Matthew G (2021): mgcooper/imcrt: v1.0. Zenodo, https://doi.org/10.5281/zenodo.4579073
Coverage:
Latitude: 67.150000 * Longitude: -50.020000
Date/Time Start: 2018-07-20T00:00:00 * Date/Time End: 2018-07-21T00:00:00
Minimum DEPTH, ice/snow: 0.12 m * Maximum DEPTH, ice/snow: 0.77 m
Event(s):
WGreenland_abl-zone * Latitude: 67.150000 * Longitude: -50.020000 * Date/Time Start: 2018-07-20T00:00:00 * Date/Time End: 2018-07-21T00:00:00 * Location: West Greenland * Method/Device: Ice station (ICE)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2106 data points

Data

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


Depth ice/snow [m]
(min)

Depth ice/snow [m]
(max)

Lambda [nm]

AC [1/m]

Attenuation std e [±]

r**2

ac [1/m]

ac std e [±]
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0.120.776704.9400.1820.9970.36640.01350
0.120.776714.9640.1810.9970.36990.01352
0.120.776724.9900.1800.9970.37390.01346
0.120.776735.0160.1790.9970.37780.01348
0.120.776745.0400.1790.9970.38140.01355
0.120.776755.0670.1780.9980.38550.01358
0.120.776765.0910.1800.9980.38920.01374
0.120.776775.1150.1810.9970.39290.01390
0.120.776785.1410.1820.9980.39680.01406
0.120.776795.1670.1840.9970.40090.01428
0.120.776805.1920.1870.9970.40480.01454
0.120.776815.2210.1870.9970.40920.01464
0.120.776825.2510.1870.9970.41410.01476
0.120.776835.2760.1890.9970.41800.01493
0.120.776845.3020.1890.9970.42200.01501
0.120.776855.3290.1890.9980.42630.01509
0.120.776865.3530.1910.9970.43020.01531
0.120.776875.3830.1910.9970.43500.01543
0.120.776885.4130.1910.9970.43990.01552
0.120.776895.4460.1930.9980.44540.01580
0.120.776905.4780.1950.9970.45050.01607
0.120.776915.5120.1970.9980.45620.01628
0.120.776925.5480.1970.9970.46220.01644
0.120.776935.5850.1960.9970.46840.01647
0.120.776945.6250.1970.9970.47500.01663
0.120.776955.6620.1990.9980.48130.01692
0.120.776965.7030.2010.9980.48840.01722
0.120.776975.7530.2000.9980.49700.01728
0.120.776985.8080.1970.9970.50640.01719
0.120.776995.8590.1970.9980.51540.01731
0.120.777005.9060.1970.9980.52370.01746