In situ sounding of radiative flux profiles through the Arctic lower troposphere
In situ profiles and fixed-altitude time series of all four components of net radiation were obtained at Ny-Ålesund, Svalbard (78.9° N, 11.9° E), in the period May 04–21, 2015. Measurements were performed using adapted high-quality instrumentation classified as “secondary standard” carried by a teth...
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ftsubggeo:oai:e-docs.geo-leo.de:11858/10568 2023-07-02T03:29:29+02:00 In situ sounding of radiative flux profiles through the Arctic lower troposphere Becker, Ralf Maturilli, Marion Philipona, Rolf Behrens, Klaus Deutscher Wetterdienst, Meteorologisches Observatorium Lindenberg, Tauche, Germany Helmholtz-Centre for Polar and Marine Research, Alfred Wegener Institute, Potsdam, Germany Federal Office of Meteorology and Climatology MeteoSuisse, Chemin de l’Aerologie, Payerne, Switzerland 2020-05-15 https://doi.org/10.1007/s42865-020-00011-8 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10568 eng eng Springer International Publishing doi:10.1007/s42865-020-00011-8 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10568 https://creativecommons.org/licenses/by/4.0/ ddc:551.5 Atmosphere Arctic In-situ profiling Albedo Clouds Heating rates doc-type:article 2020 ftsubggeo https://doi.org/10.1007/s42865-020-00011-8 2023-06-11T22:12:19Z In situ profiles and fixed-altitude time series of all four components of net radiation were obtained at Ny-Ålesund, Svalbard (78.9° N, 11.9° E), in the period May 04–21, 2015. Measurements were performed using adapted high-quality instrumentation classified as “secondary standard” carried by a tethered balloon system. Balloon-lifted measurements of albedo under clear-sky conditions demonstrate the local dependence on altitude and on the surface inhomogeneity of this parameter over coastal terrain of Ny-Ålesund. Depending on the surface composition within the sensor’s footprint near the coastline, the albedo over predominantly snow-covered surfaces was found to decrease to 0.548 and 0.452 at 494 m and 881 m altitude compared with 0.731 and 0.788 measured with near-surface references, respectively. Albedo profiles show an all-sky maximum at 150 m above surface level due to local surface inhomogeneity, and an averaged vertical change rate of − 0.040/100 up to 750 m aboveground level (clear sky) and − 0.034/100 m (overcast). Profiling of arctic low-level clouds reveals distinct vertical gradients in all radiative fluxes but longwave upward at the cloud top. Observed radiative cooling at the top of a partly dissolving stratus cloud with heating rates of − 40.4 to − 62.1 Kd−1 in subsequent observations is exemplified. Bundesrepublik Deutschland, Deutscher Wetterdienst, vertreten durch den Vorstand, Deutsche Meteorologische Bibliothek (4242) Article in Journal/Newspaper albedo Arctic Ny Ålesund Ny-Ålesund Svalbard GEO-LEOe-docs (FID GEO) Arctic Ny-Ålesund Svalbard Bulletin of Atmospheric Science and Technology 1 2 155 177 |
institution |
Open Polar |
collection |
GEO-LEOe-docs (FID GEO) |
op_collection_id |
ftsubggeo |
language |
English |
topic |
ddc:551.5 Atmosphere Arctic In-situ profiling Albedo Clouds Heating rates |
spellingShingle |
ddc:551.5 Atmosphere Arctic In-situ profiling Albedo Clouds Heating rates Becker, Ralf Maturilli, Marion Philipona, Rolf Behrens, Klaus Deutscher Wetterdienst, Meteorologisches Observatorium Lindenberg, Tauche, Germany Helmholtz-Centre for Polar and Marine Research, Alfred Wegener Institute, Potsdam, Germany Federal Office of Meteorology and Climatology MeteoSuisse, Chemin de l’Aerologie, Payerne, Switzerland In situ sounding of radiative flux profiles through the Arctic lower troposphere |
topic_facet |
ddc:551.5 Atmosphere Arctic In-situ profiling Albedo Clouds Heating rates |
description |
In situ profiles and fixed-altitude time series of all four components of net radiation were obtained at Ny-Ålesund, Svalbard (78.9° N, 11.9° E), in the period May 04–21, 2015. Measurements were performed using adapted high-quality instrumentation classified as “secondary standard” carried by a tethered balloon system. Balloon-lifted measurements of albedo under clear-sky conditions demonstrate the local dependence on altitude and on the surface inhomogeneity of this parameter over coastal terrain of Ny-Ålesund. Depending on the surface composition within the sensor’s footprint near the coastline, the albedo over predominantly snow-covered surfaces was found to decrease to 0.548 and 0.452 at 494 m and 881 m altitude compared with 0.731 and 0.788 measured with near-surface references, respectively. Albedo profiles show an all-sky maximum at 150 m above surface level due to local surface inhomogeneity, and an averaged vertical change rate of − 0.040/100 up to 750 m aboveground level (clear sky) and − 0.034/100 m (overcast). Profiling of arctic low-level clouds reveals distinct vertical gradients in all radiative fluxes but longwave upward at the cloud top. Observed radiative cooling at the top of a partly dissolving stratus cloud with heating rates of − 40.4 to − 62.1 Kd−1 in subsequent observations is exemplified. Bundesrepublik Deutschland, Deutscher Wetterdienst, vertreten durch den Vorstand, Deutsche Meteorologische Bibliothek (4242) |
format |
Article in Journal/Newspaper |
author |
Becker, Ralf Maturilli, Marion Philipona, Rolf Behrens, Klaus Deutscher Wetterdienst, Meteorologisches Observatorium Lindenberg, Tauche, Germany Helmholtz-Centre for Polar and Marine Research, Alfred Wegener Institute, Potsdam, Germany Federal Office of Meteorology and Climatology MeteoSuisse, Chemin de l’Aerologie, Payerne, Switzerland |
author_facet |
Becker, Ralf Maturilli, Marion Philipona, Rolf Behrens, Klaus Deutscher Wetterdienst, Meteorologisches Observatorium Lindenberg, Tauche, Germany Helmholtz-Centre for Polar and Marine Research, Alfred Wegener Institute, Potsdam, Germany Federal Office of Meteorology and Climatology MeteoSuisse, Chemin de l’Aerologie, Payerne, Switzerland |
author_sort |
Becker, Ralf |
title |
In situ sounding of radiative flux profiles through the Arctic lower troposphere |
title_short |
In situ sounding of radiative flux profiles through the Arctic lower troposphere |
title_full |
In situ sounding of radiative flux profiles through the Arctic lower troposphere |
title_fullStr |
In situ sounding of radiative flux profiles through the Arctic lower troposphere |
title_full_unstemmed |
In situ sounding of radiative flux profiles through the Arctic lower troposphere |
title_sort |
in situ sounding of radiative flux profiles through the arctic lower troposphere |
publisher |
Springer International Publishing |
publishDate |
2020 |
url |
https://doi.org/10.1007/s42865-020-00011-8 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10568 |
geographic |
Arctic Ny-Ålesund Svalbard |
geographic_facet |
Arctic Ny-Ålesund Svalbard |
genre |
albedo Arctic Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
albedo Arctic Ny Ålesund Ny-Ålesund Svalbard |
op_relation |
doi:10.1007/s42865-020-00011-8 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10568 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1007/s42865-020-00011-8 |
container_title |
Bulletin of Atmospheric Science and Technology |
container_volume |
1 |
container_issue |
2 |
container_start_page |
155 |
op_container_end_page |
177 |
_version_ |
1770274710434611200 |