10 Be measured in a GRIP snow pit and modeled using the ECHAM5-HAM general circulation model
10 Be measured in a Greenland Ice Core Project (GRIP) snow pit (1986–1990) with a seasonal resolution is compared with the ECHAM5–HAM GCM run. The mean modeled 10 Be concentration in ice (1.0·10 4 atoms/g) agrees well with the measured value (1.2·10 4 atoms/g). The measured 10 Be deposition flux (88...
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Language: | English |
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Online Access: | https://doi.org/10.1029/2007GL033067 |
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fteawag:oai:dora:eawag_5707 2024-09-15T18:09:49+00:00 10 Be measured in a GRIP snow pit and modeled using the ECHAM5-HAM general circulation model Heikkilä, U. Beer, J. Jouzel, J. Feichter, J. Kubik, P. 2008 https://doi.org/10.1029/2007GL033067 eng eng Wiley Geophysical Research Letters--Geophys. Res. Lett.--journals:1144--0094-8276 eawag:5707 journal id: journals:1144 issn: 0094-8276 ut: 000254165500005 local: 13014 scopus: 2-s2.0-43549102436 doi:10.1029/2007GL033067 Text Journal Article 2008 fteawag https://doi.org/10.1029/2007GL033067 2024-08-05T03:04:28Z 10 Be measured in a Greenland Ice Core Project (GRIP) snow pit (1986–1990) with a seasonal resolution is compared with the ECHAM5–HAM GCM run. The mean modeled 10 Be concentration in ice (1.0·10 4 atoms/g) agrees well with the measured value (1.2·10 4 atoms/g). The measured 10 Be deposition flux (88 atoms/m 2 /s) also agrees well with the modeled flux (69 atoms/m 2 /s) and the measured precipitation rate (0.67 mm/day) agrees with the modeled rate (0.61 mm/day). The mean surface temperature of −31°C estimated from δ 18 O is lower than the temperature measured at a near-by weather station (−29°C) and the modeled temperature (−26°C). During the 5-year period the concentrations and deposition fluxes, both measured and modeled, show a decreasing trend consistent with the increase in the solar activity. The variability of the measured and modeled concentrations and deposition fluxes is very similar suggesting that the variability is linked to a variability in production rather than the local meteorology. Article in Journal/Newspaper Greenland Greenland ice core Greenland Ice core Project GRIP ice core DORA Eawag Geophysical Research Letters 35 5 |
institution |
Open Polar |
collection |
DORA Eawag |
op_collection_id |
fteawag |
language |
English |
description |
10 Be measured in a Greenland Ice Core Project (GRIP) snow pit (1986–1990) with a seasonal resolution is compared with the ECHAM5–HAM GCM run. The mean modeled 10 Be concentration in ice (1.0·10 4 atoms/g) agrees well with the measured value (1.2·10 4 atoms/g). The measured 10 Be deposition flux (88 atoms/m 2 /s) also agrees well with the modeled flux (69 atoms/m 2 /s) and the measured precipitation rate (0.67 mm/day) agrees with the modeled rate (0.61 mm/day). The mean surface temperature of −31°C estimated from δ 18 O is lower than the temperature measured at a near-by weather station (−29°C) and the modeled temperature (−26°C). During the 5-year period the concentrations and deposition fluxes, both measured and modeled, show a decreasing trend consistent with the increase in the solar activity. The variability of the measured and modeled concentrations and deposition fluxes is very similar suggesting that the variability is linked to a variability in production rather than the local meteorology. |
format |
Article in Journal/Newspaper |
author |
Heikkilä, U. Beer, J. Jouzel, J. Feichter, J. Kubik, P. |
spellingShingle |
Heikkilä, U. Beer, J. Jouzel, J. Feichter, J. Kubik, P. 10 Be measured in a GRIP snow pit and modeled using the ECHAM5-HAM general circulation model |
author_facet |
Heikkilä, U. Beer, J. Jouzel, J. Feichter, J. Kubik, P. |
author_sort |
Heikkilä, U. |
title |
10 Be measured in a GRIP snow pit and modeled using the ECHAM5-HAM general circulation model |
title_short |
10 Be measured in a GRIP snow pit and modeled using the ECHAM5-HAM general circulation model |
title_full |
10 Be measured in a GRIP snow pit and modeled using the ECHAM5-HAM general circulation model |
title_fullStr |
10 Be measured in a GRIP snow pit and modeled using the ECHAM5-HAM general circulation model |
title_full_unstemmed |
10 Be measured in a GRIP snow pit and modeled using the ECHAM5-HAM general circulation model |
title_sort |
10 be measured in a grip snow pit and modeled using the echam5-ham general circulation model |
publisher |
Wiley |
publishDate |
2008 |
url |
https://doi.org/10.1029/2007GL033067 |
genre |
Greenland Greenland ice core Greenland Ice core Project GRIP ice core |
genre_facet |
Greenland Greenland ice core Greenland Ice core Project GRIP ice core |
op_relation |
Geophysical Research Letters--Geophys. Res. Lett.--journals:1144--0094-8276 eawag:5707 journal id: journals:1144 issn: 0094-8276 ut: 000254165500005 local: 13014 scopus: 2-s2.0-43549102436 doi:10.1029/2007GL033067 |
op_doi |
https://doi.org/10.1029/2007GL033067 |
container_title |
Geophysical Research Letters |
container_volume |
35 |
container_issue |
5 |
_version_ |
1810447415323394048 |