Line-scan grey-scale intensity profile from the NGRIP2 ice core, Greenland
A continuous high-resolution record of digital images was obtained from the North Greenland Ice Core Project (NGRIP) ice core in the depth interval from 1330 m to the bedrock at 3085 m during the Greenland field seasons of 2000 and 2001. The images are obtained as dark-field images from an indirect...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.941174 2023-05-15T16:25:30+02:00 Line-scan grey-scale intensity profile from the NGRIP2 ice core, Greenland Svensson, Anders M Kipfstuhl, Sepp Steffensen, Jørgen Peder LATITUDE: 75.100000 * LONGITUDE: -42.320000 * DATE/TIME START: 1996-07-01T00:00:00 * DATE/TIME END: 1996-07-01T00:00:00 * MINIMUM DEPTH, ice/snow: 1371.150 m * MAXIMUM DEPTH, ice/snow: 2425.000 m 2022-02-16 text/tab-separated-values, 1053851 data points https://doi.pangaea.de/10.1594/PANGAEA.941174 https://doi.org/10.1594/PANGAEA.941174 en eng PANGAEA Svensson, Anders M; Nielsen, Søren Wedel; Kipfstuhl, Sepp; Johnsen, Sigfús Jóhann; Steffensen, Jørgen Peder; Bigler, Matthias; Ruth, Urs; Röthlisberger, Regine (2005): Visual stratigraphy of the North Greenland Ice Core Project (NorthGRIP) ice core during the last glacial period. Journal of Geophysical Research, 110(D2), https://doi.org/10.1029/2004JD005134 https://doi.pangaea.de/10.1594/PANGAEA.941174 https://doi.org/10.1594/PANGAEA.941174 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY annual layers DEPTH ice/snow Greenland ICEDRILL Ice drill impurities Intensity Line Scan Camera NGRIP North Greenland Ice Core Project NorthGRIP Sampling/drilling ice Visual stratigraphy linescanner Dataset 2022 ftpangaea https://doi.org/10.1594/PANGAEA.941174 https://doi.org/10.1029/2004JD005134 2023-01-20T09:15:44Z A continuous high-resolution record of digital images was obtained from the North Greenland Ice Core Project (NGRIP) ice core in the depth interval from 1330 m to the bedrock at 3085 m during the Greenland field seasons of 2000 and 2001. The images are obtained as dark-field images from an indirect light source and provide detailed visual documentation of the ice core at high depth resolution. The visual stratigraphy grey-scale intensity profile (the line-scan profile) is obtained as an averaged intensity profile from the centre part of the stratigraphy images along the direction of the core. The dataset covers the depth interval 1371.15-2425.00 m in 1 mm depth resolution and with grey scale values in the range of 0-255. The profile is unprocessed and includes all core breaks that give rise high intensity values that should be regarded as contamination. Furthermore, the profile suffers from an intensity saturation issue that is uncorrected for. Finally, the section 1371.15–1750 m depth is hampered by ice relaxation effects as this section of the core was overwintering in Greenland for one year prior to analysis. The dataset was applied to construct the glacial part of the GICC05 ice-core chronology. The analytical technique and the intensity profile are described in Svensson et al. (2005). Dataset Greenland Greenland ice core Greenland Ice core Project ice core NGRIP North Greenland North Greenland Ice Core Project PANGAEA - Data Publisher for Earth & Environmental Science Greenland ENVELOPE(-42.320000,-42.320000,75.100000,75.100000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
annual layers DEPTH ice/snow Greenland ICEDRILL Ice drill impurities Intensity Line Scan Camera NGRIP North Greenland Ice Core Project NorthGRIP Sampling/drilling ice Visual stratigraphy linescanner |
spellingShingle |
annual layers DEPTH ice/snow Greenland ICEDRILL Ice drill impurities Intensity Line Scan Camera NGRIP North Greenland Ice Core Project NorthGRIP Sampling/drilling ice Visual stratigraphy linescanner Svensson, Anders M Kipfstuhl, Sepp Steffensen, Jørgen Peder Line-scan grey-scale intensity profile from the NGRIP2 ice core, Greenland |
topic_facet |
annual layers DEPTH ice/snow Greenland ICEDRILL Ice drill impurities Intensity Line Scan Camera NGRIP North Greenland Ice Core Project NorthGRIP Sampling/drilling ice Visual stratigraphy linescanner |
description |
A continuous high-resolution record of digital images was obtained from the North Greenland Ice Core Project (NGRIP) ice core in the depth interval from 1330 m to the bedrock at 3085 m during the Greenland field seasons of 2000 and 2001. The images are obtained as dark-field images from an indirect light source and provide detailed visual documentation of the ice core at high depth resolution. The visual stratigraphy grey-scale intensity profile (the line-scan profile) is obtained as an averaged intensity profile from the centre part of the stratigraphy images along the direction of the core. The dataset covers the depth interval 1371.15-2425.00 m in 1 mm depth resolution and with grey scale values in the range of 0-255. The profile is unprocessed and includes all core breaks that give rise high intensity values that should be regarded as contamination. Furthermore, the profile suffers from an intensity saturation issue that is uncorrected for. Finally, the section 1371.15–1750 m depth is hampered by ice relaxation effects as this section of the core was overwintering in Greenland for one year prior to analysis. The dataset was applied to construct the glacial part of the GICC05 ice-core chronology. The analytical technique and the intensity profile are described in Svensson et al. (2005). |
format |
Dataset |
author |
Svensson, Anders M Kipfstuhl, Sepp Steffensen, Jørgen Peder |
author_facet |
Svensson, Anders M Kipfstuhl, Sepp Steffensen, Jørgen Peder |
author_sort |
Svensson, Anders M |
title |
Line-scan grey-scale intensity profile from the NGRIP2 ice core, Greenland |
title_short |
Line-scan grey-scale intensity profile from the NGRIP2 ice core, Greenland |
title_full |
Line-scan grey-scale intensity profile from the NGRIP2 ice core, Greenland |
title_fullStr |
Line-scan grey-scale intensity profile from the NGRIP2 ice core, Greenland |
title_full_unstemmed |
Line-scan grey-scale intensity profile from the NGRIP2 ice core, Greenland |
title_sort |
line-scan grey-scale intensity profile from the ngrip2 ice core, greenland |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.941174 https://doi.org/10.1594/PANGAEA.941174 |
op_coverage |
LATITUDE: 75.100000 * LONGITUDE: -42.320000 * DATE/TIME START: 1996-07-01T00:00:00 * DATE/TIME END: 1996-07-01T00:00:00 * MINIMUM DEPTH, ice/snow: 1371.150 m * MAXIMUM DEPTH, ice/snow: 2425.000 m |
long_lat |
ENVELOPE(-42.320000,-42.320000,75.100000,75.100000) |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core Greenland Ice core Project ice core NGRIP North Greenland North Greenland Ice Core Project |
genre_facet |
Greenland Greenland ice core Greenland Ice core Project ice core NGRIP North Greenland North Greenland Ice Core Project |
op_relation |
Svensson, Anders M; Nielsen, Søren Wedel; Kipfstuhl, Sepp; Johnsen, Sigfús Jóhann; Steffensen, Jørgen Peder; Bigler, Matthias; Ruth, Urs; Röthlisberger, Regine (2005): Visual stratigraphy of the North Greenland Ice Core Project (NorthGRIP) ice core during the last glacial period. Journal of Geophysical Research, 110(D2), https://doi.org/10.1029/2004JD005134 https://doi.pangaea.de/10.1594/PANGAEA.941174 https://doi.org/10.1594/PANGAEA.941174 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.941174 https://doi.org/10.1029/2004JD005134 |
_version_ |
1766014282129997824 |