Aerosol-related effects on the occurrence of heterogeneous ice formation over Lauder, New Zealand ...
<!--!introduction!--> An 11-year dataset from a polarization lidar operated by NIWA at Lauder was used to investigate heterogeneous ice formation in clouds as a function of temperature for a site on the South Island of New Zealand. Trajectory-based tools and model data were used to relate this...
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GFZ German Research Centre for Geosciences
2023
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ftdatacite:10.57757/iugg23-2458 2023-07-23T04:15:52+02:00 Aerosol-related effects on the occurrence of heterogeneous ice formation over Lauder, New Zealand ... Hofer, Julian Seifert, Patric Liley, Ben Uchino, Osamu Morino, Isamu Sakai, Tetsu Nagai, Tomohiro 2023 https://dx.doi.org/10.57757/iugg23-2458 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018291 unknown GFZ German Research Centre for Geosciences Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Article ConferencePaper Oral 2023 ftdatacite https://doi.org/10.57757/iugg23-2458 2023-07-03T17:34:25Z <!--!introduction!--> An 11-year dataset from a polarization lidar operated by NIWA at Lauder was used to investigate heterogeneous ice formation in clouds as a function of temperature for a site on the South Island of New Zealand. Trajectory-based tools and model data were used to relate this cloud dataset to the aerosol load and air mass sources, as aerosol conditions in the middle troposphere above Lauder are subject to contrasts. Clean, pristine airmasses from Antarctica and the Southern Ocean arrive under southerly flow conditions while elevated aerosol loads occur when air masses are advected from nearby Australia. The Lauder cloud dataset was put into context with lidar studies from contrasting regions such as Germany and southern Chile. The ice-formation efficiency found at Lauder is lower than in polluted mid-latitudes (i.e., Germany) but higher than in southern Chile. Both, Lauder and southern Chile are subject to generally low free-tropospheric aerosol loads, which suggests that the low ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... Conference Object Antarc* Antarctica Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean New Zealand |
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description |
<!--!introduction!--> An 11-year dataset from a polarization lidar operated by NIWA at Lauder was used to investigate heterogeneous ice formation in clouds as a function of temperature for a site on the South Island of New Zealand. Trajectory-based tools and model data were used to relate this cloud dataset to the aerosol load and air mass sources, as aerosol conditions in the middle troposphere above Lauder are subject to contrasts. Clean, pristine airmasses from Antarctica and the Southern Ocean arrive under southerly flow conditions while elevated aerosol loads occur when air masses are advected from nearby Australia. The Lauder cloud dataset was put into context with lidar studies from contrasting regions such as Germany and southern Chile. The ice-formation efficiency found at Lauder is lower than in polluted mid-latitudes (i.e., Germany) but higher than in southern Chile. Both, Lauder and southern Chile are subject to generally low free-tropospheric aerosol loads, which suggests that the low ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
format |
Conference Object |
author |
Hofer, Julian Seifert, Patric Liley, Ben Uchino, Osamu Morino, Isamu Sakai, Tetsu Nagai, Tomohiro |
spellingShingle |
Hofer, Julian Seifert, Patric Liley, Ben Uchino, Osamu Morino, Isamu Sakai, Tetsu Nagai, Tomohiro Aerosol-related effects on the occurrence of heterogeneous ice formation over Lauder, New Zealand ... |
author_facet |
Hofer, Julian Seifert, Patric Liley, Ben Uchino, Osamu Morino, Isamu Sakai, Tetsu Nagai, Tomohiro |
author_sort |
Hofer, Julian |
title |
Aerosol-related effects on the occurrence of heterogeneous ice formation over Lauder, New Zealand ... |
title_short |
Aerosol-related effects on the occurrence of heterogeneous ice formation over Lauder, New Zealand ... |
title_full |
Aerosol-related effects on the occurrence of heterogeneous ice formation over Lauder, New Zealand ... |
title_fullStr |
Aerosol-related effects on the occurrence of heterogeneous ice formation over Lauder, New Zealand ... |
title_full_unstemmed |
Aerosol-related effects on the occurrence of heterogeneous ice formation over Lauder, New Zealand ... |
title_sort |
aerosol-related effects on the occurrence of heterogeneous ice formation over lauder, new zealand ... |
publisher |
GFZ German Research Centre for Geosciences |
publishDate |
2023 |
url |
https://dx.doi.org/10.57757/iugg23-2458 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018291 |
geographic |
Southern Ocean New Zealand |
geographic_facet |
Southern Ocean New Zealand |
genre |
Antarc* Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctica Southern Ocean |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.57757/iugg23-2458 |
_version_ |
1772177029588844544 |