Twenty-five years of cloud base height measurements by ceilometer in Ny-Ålesund, Svalbard
Clouds are a key factor for the Arctic amplification of global warming, but their actual appearance and distribution are still afflicted by large uncertainty. On the Arctic-wide scale, large discrepancies are found between the various reanalyses and satellite products, respectively. Although ground-...
Published in: | Earth System Science Data |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/essd-10-1451-2018 https://noa.gwlb.de/receive/cop_mods_00005090 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005047/essd-10-1451-2018.pdf https://essd.copernicus.org/articles/10/1451/2018/essd-10-1451-2018.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00005090 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00005090 2023-05-15T14:54:41+02:00 Twenty-five years of cloud base height measurements by ceilometer in Ny-Ålesund, Svalbard Maturilli, Marion Ebell, Kerstin 2018-08 electronic https://doi.org/10.5194/essd-10-1451-2018 https://noa.gwlb.de/receive/cop_mods_00005090 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005047/essd-10-1451-2018.pdf https://essd.copernicus.org/articles/10/1451/2018/essd-10-1451-2018.pdf eng eng Copernicus Publications Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-10-1451-2018 https://noa.gwlb.de/receive/cop_mods_00005090 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005047/essd-10-1451-2018.pdf https://essd.copernicus.org/articles/10/1451/2018/essd-10-1451-2018.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/essd-10-1451-2018 2022-02-08T22:59:45Z Clouds are a key factor for the Arctic amplification of global warming, but their actual appearance and distribution are still afflicted by large uncertainty. On the Arctic-wide scale, large discrepancies are found between the various reanalyses and satellite products, respectively. Although ground-based observations by remote sensing are limited to point measurements, they have the advantage of obtaining extended time series of vertically resolved cloud properties. Here, we present a 25-year data record of cloud base height measured by ceilometer at the Ny-Ålesund, Svalbard, Arctic site. We explain the composition of the three sub-periods with different instrumentation contributing to the data set, and show examples of potential application areas. Linked to cyclonic activity, the cloud base height provides essential information for the interpretation of the surface radiation balance and contributes to the understanding of meteorological processes. Furthermore, it is a useful auxiliary component for the analysis of advanced technologies that provide insight into cloud microphysical properties, like the cloud radar. The long-term time series also allows derivation of an annual cycle of the cloud occurrence frequency, revealing the more frequent cloud cover in summer and the lowest cloud cover amount in April. However, as the use of different ceilometer instruments over the years potentially imposed inhomogeneities onto the data record, any long-term trend analysis should be avoided. The Ny-Ålesund cloud base height data from August 1992 to July 2017 are provided in a high temporal resolution of 5 min (1 min) before (after) July 1998, respectively, at the PANGAEA repository (https://doi.org/10.1594/PANGAEA.880300). Article in Journal/Newspaper Arctic Global warming Ny Ålesund Ny-Ålesund Svalbard Niedersächsisches Online-Archiv NOA Arctic Ny-Ålesund Svalbard Earth System Science Data 10 3 1451 1456 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Maturilli, Marion Ebell, Kerstin Twenty-five years of cloud base height measurements by ceilometer in Ny-Ålesund, Svalbard |
topic_facet |
article Verlagsveröffentlichung |
description |
Clouds are a key factor for the Arctic amplification of global warming, but their actual appearance and distribution are still afflicted by large uncertainty. On the Arctic-wide scale, large discrepancies are found between the various reanalyses and satellite products, respectively. Although ground-based observations by remote sensing are limited to point measurements, they have the advantage of obtaining extended time series of vertically resolved cloud properties. Here, we present a 25-year data record of cloud base height measured by ceilometer at the Ny-Ålesund, Svalbard, Arctic site. We explain the composition of the three sub-periods with different instrumentation contributing to the data set, and show examples of potential application areas. Linked to cyclonic activity, the cloud base height provides essential information for the interpretation of the surface radiation balance and contributes to the understanding of meteorological processes. Furthermore, it is a useful auxiliary component for the analysis of advanced technologies that provide insight into cloud microphysical properties, like the cloud radar. The long-term time series also allows derivation of an annual cycle of the cloud occurrence frequency, revealing the more frequent cloud cover in summer and the lowest cloud cover amount in April. However, as the use of different ceilometer instruments over the years potentially imposed inhomogeneities onto the data record, any long-term trend analysis should be avoided. The Ny-Ålesund cloud base height data from August 1992 to July 2017 are provided in a high temporal resolution of 5 min (1 min) before (after) July 1998, respectively, at the PANGAEA repository (https://doi.org/10.1594/PANGAEA.880300). |
format |
Article in Journal/Newspaper |
author |
Maturilli, Marion Ebell, Kerstin |
author_facet |
Maturilli, Marion Ebell, Kerstin |
author_sort |
Maturilli, Marion |
title |
Twenty-five years of cloud base height measurements by ceilometer in Ny-Ålesund, Svalbard |
title_short |
Twenty-five years of cloud base height measurements by ceilometer in Ny-Ålesund, Svalbard |
title_full |
Twenty-five years of cloud base height measurements by ceilometer in Ny-Ålesund, Svalbard |
title_fullStr |
Twenty-five years of cloud base height measurements by ceilometer in Ny-Ålesund, Svalbard |
title_full_unstemmed |
Twenty-five years of cloud base height measurements by ceilometer in Ny-Ålesund, Svalbard |
title_sort |
twenty-five years of cloud base height measurements by ceilometer in ny-ålesund, svalbard |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/essd-10-1451-2018 https://noa.gwlb.de/receive/cop_mods_00005090 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005047/essd-10-1451-2018.pdf https://essd.copernicus.org/articles/10/1451/2018/essd-10-1451-2018.pdf |
geographic |
Arctic Ny-Ålesund Svalbard |
geographic_facet |
Arctic Ny-Ålesund Svalbard |
genre |
Arctic Global warming Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic Global warming Ny Ålesund Ny-Ålesund Svalbard |
op_relation |
Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469 -- 1866-3516 https://doi.org/10.5194/essd-10-1451-2018 https://noa.gwlb.de/receive/cop_mods_00005090 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005047/essd-10-1451-2018.pdf https://essd.copernicus.org/articles/10/1451/2018/essd-10-1451-2018.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/essd-10-1451-2018 |
container_title |
Earth System Science Data |
container_volume |
10 |
container_issue |
3 |
container_start_page |
1451 |
op_container_end_page |
1456 |
_version_ |
1766326448019210240 |