Solar irradiance over and under seasonal land-fast sea ice off Barrow, Alaska, in 2010
The amount of solar radiation transmitted through Arctic sea ice is determined by the thickness and physical properties of snow and sea ice. Light transmittance is highly variable in space and time since thickness and physical properties of snow and sea ice are highly heterogeneous on variable time...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.780223 2023-05-15T14:25:28+02:00 Solar irradiance over and under seasonal land-fast sea ice off Barrow, Alaska, in 2010 Nicolaus, Marcel Petrich, Chris Hudson, Stephen R Granskog, Mats A LATITUDE: 71.370000 * LONGITUDE: -156.510000 * DATE/TIME START: 2010-03-19T00:00:00 * DATE/TIME END: 2010-06-11T23:19:58 2013-04-27 application/zip, 17 datasets https://doi.pangaea.de/10.1594/PANGAEA.780223 https://doi.org/10.1594/PANGAEA.780223 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.780223 https://doi.org/10.1594/PANGAEA.780223 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Nicolaus, Marcel; Petrich, Chris; Hudson, Stephen R; Granskog, Mats A (2013): Variability of light transmission through Arctic land-fast sea ice during spring. The Cryosphere, 7(3), 977-986, https://doi.org/10.5194/tc-7-977-2013 Barrow2010_c1 Barrow2010_c2 Barrow2010_c3 Barrow2010_c4 Barrow2010_c5 Barrow2010_p1 Barrow2010_p2 Barrow2010_p3 Chukchi Sea ICEDRILL Ice drill ICESUR Ice survey Dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.780223 https://doi.org/10.5194/tc-7-977-2013 2023-01-20T07:32:32Z The amount of solar radiation transmitted through Arctic sea ice is determined by the thickness and physical properties of snow and sea ice. Light transmittance is highly variable in space and time since thickness and physical properties of snow and sea ice are highly heterogeneous on variable time and length scales. We present field measurements of under-ice irradiance along transects under undeformed land-fast sea ice at Barrow, Alaska (March, May, and June 2010). The measurements were performed with a spectral radiometer mounted on a floating under-ice sled. The objective was to quantify the spatial variability of light transmittance through snow and sea ice, and to compare this variability along its seasonal evolution. Along with optical measurements, snow depth, sea ice thickness, and freeboard were recorded, and ice cores were analyzed for chlorophyll a and particulate matter. Our results show that snow cover variability prior to onset of snow melt causes as much relative spatial variability of light transmittance as the contrast of ponded and white ice during summer. Both before and after melt onset, measured transmittances fell in a range from one third to three times the mean value. In addition, we found a twentyfold increase of light transmittance as a result of partial snowmelt, showing the seasonal evolution of transmittance through sea ice far exceeds the spatial variability. However, prior melt onset, light transmittance was time invariant and differences in under-ice irradiance were directly related to the spatial variability of the snow cover. Dataset Arctic Arctic Barrow Chukchi Chukchi Sea Sea ice The Cryosphere Alaska PANGAEA - Data Publisher for Earth & Environmental Science Arctic Chukchi Sea ENVELOPE(-156.510000,-156.510000,71.370000,71.370000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Barrow2010_c1 Barrow2010_c2 Barrow2010_c3 Barrow2010_c4 Barrow2010_c5 Barrow2010_p1 Barrow2010_p2 Barrow2010_p3 Chukchi Sea ICEDRILL Ice drill ICESUR Ice survey |
spellingShingle |
Barrow2010_c1 Barrow2010_c2 Barrow2010_c3 Barrow2010_c4 Barrow2010_c5 Barrow2010_p1 Barrow2010_p2 Barrow2010_p3 Chukchi Sea ICEDRILL Ice drill ICESUR Ice survey Nicolaus, Marcel Petrich, Chris Hudson, Stephen R Granskog, Mats A Solar irradiance over and under seasonal land-fast sea ice off Barrow, Alaska, in 2010 |
topic_facet |
Barrow2010_c1 Barrow2010_c2 Barrow2010_c3 Barrow2010_c4 Barrow2010_c5 Barrow2010_p1 Barrow2010_p2 Barrow2010_p3 Chukchi Sea ICEDRILL Ice drill ICESUR Ice survey |
description |
The amount of solar radiation transmitted through Arctic sea ice is determined by the thickness and physical properties of snow and sea ice. Light transmittance is highly variable in space and time since thickness and physical properties of snow and sea ice are highly heterogeneous on variable time and length scales. We present field measurements of under-ice irradiance along transects under undeformed land-fast sea ice at Barrow, Alaska (March, May, and June 2010). The measurements were performed with a spectral radiometer mounted on a floating under-ice sled. The objective was to quantify the spatial variability of light transmittance through snow and sea ice, and to compare this variability along its seasonal evolution. Along with optical measurements, snow depth, sea ice thickness, and freeboard were recorded, and ice cores were analyzed for chlorophyll a and particulate matter. Our results show that snow cover variability prior to onset of snow melt causes as much relative spatial variability of light transmittance as the contrast of ponded and white ice during summer. Both before and after melt onset, measured transmittances fell in a range from one third to three times the mean value. In addition, we found a twentyfold increase of light transmittance as a result of partial snowmelt, showing the seasonal evolution of transmittance through sea ice far exceeds the spatial variability. However, prior melt onset, light transmittance was time invariant and differences in under-ice irradiance were directly related to the spatial variability of the snow cover. |
format |
Dataset |
author |
Nicolaus, Marcel Petrich, Chris Hudson, Stephen R Granskog, Mats A |
author_facet |
Nicolaus, Marcel Petrich, Chris Hudson, Stephen R Granskog, Mats A |
author_sort |
Nicolaus, Marcel |
title |
Solar irradiance over and under seasonal land-fast sea ice off Barrow, Alaska, in 2010 |
title_short |
Solar irradiance over and under seasonal land-fast sea ice off Barrow, Alaska, in 2010 |
title_full |
Solar irradiance over and under seasonal land-fast sea ice off Barrow, Alaska, in 2010 |
title_fullStr |
Solar irradiance over and under seasonal land-fast sea ice off Barrow, Alaska, in 2010 |
title_full_unstemmed |
Solar irradiance over and under seasonal land-fast sea ice off Barrow, Alaska, in 2010 |
title_sort |
solar irradiance over and under seasonal land-fast sea ice off barrow, alaska, in 2010 |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.780223 https://doi.org/10.1594/PANGAEA.780223 |
op_coverage |
LATITUDE: 71.370000 * LONGITUDE: -156.510000 * DATE/TIME START: 2010-03-19T00:00:00 * DATE/TIME END: 2010-06-11T23:19:58 |
long_lat |
ENVELOPE(-156.510000,-156.510000,71.370000,71.370000) |
geographic |
Arctic Chukchi Sea |
geographic_facet |
Arctic Chukchi Sea |
genre |
Arctic Arctic Barrow Chukchi Chukchi Sea Sea ice The Cryosphere Alaska |
genre_facet |
Arctic Arctic Barrow Chukchi Chukchi Sea Sea ice The Cryosphere Alaska |
op_source |
Supplement to: Nicolaus, Marcel; Petrich, Chris; Hudson, Stephen R; Granskog, Mats A (2013): Variability of light transmission through Arctic land-fast sea ice during spring. The Cryosphere, 7(3), 977-986, https://doi.org/10.5194/tc-7-977-2013 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.780223 https://doi.org/10.1594/PANGAEA.780223 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.780223 https://doi.org/10.5194/tc-7-977-2013 |
_version_ |
1766297862305480704 |