In situ sounding of radiative flux profiles through the Arctic lower troposphere
Abstract 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...
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crspringernat:10.1007/s42865-020-00011-8 2023-05-15T13:10:50+02:00 In situ sounding of radiative flux profiles through the Arctic lower troposphere Becker, Ralf Maturilli, Marion Philipona, Rolf Behrens, Klaus Bundesrepublik Deutschland, Deutscher Wetterdienst, vertreten durch den Vorstand, Deutsche Meteorologische Bibliothek 2020 http://dx.doi.org/10.1007/s42865-020-00011-8 https://link.springer.com/content/pdf/10.1007/s42865-020-00011-8.pdf https://link.springer.com/article/10.1007/s42865-020-00011-8/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Bulletin of Atmospheric Science and Technology volume 1, issue 2, page 155-177 ISSN 2662-1495 2662-1509 General Medicine journal-article 2020 crspringernat https://doi.org/10.1007/s42865-020-00011-8 2022-01-04T15:45:54Z Abstract 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. Article in Journal/Newspaper albedo Arctic Ny Ålesund Ny-Ålesund Svalbard Springer Nature (via Crossref) Arctic Ny-Ålesund Svalbard Bulletin of Atmospheric Science and Technology 1 2 155 177 |
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Springer Nature (via Crossref) |
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English |
topic |
General Medicine |
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General Medicine Becker, Ralf Maturilli, Marion Philipona, Rolf Behrens, Klaus In situ sounding of radiative flux profiles through the Arctic lower troposphere |
topic_facet |
General Medicine |
description |
Abstract 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. |
author2 |
Bundesrepublik Deutschland, Deutscher Wetterdienst, vertreten durch den Vorstand, Deutsche Meteorologische Bibliothek |
format |
Article in Journal/Newspaper |
author |
Becker, Ralf Maturilli, Marion Philipona, Rolf Behrens, Klaus |
author_facet |
Becker, Ralf Maturilli, Marion Philipona, Rolf Behrens, Klaus |
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 Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1007/s42865-020-00011-8 https://link.springer.com/content/pdf/10.1007/s42865-020-00011-8.pdf https://link.springer.com/article/10.1007/s42865-020-00011-8/fulltext.html |
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_source |
Bulletin of Atmospheric Science and Technology volume 1, issue 2, page 155-177 ISSN 2662-1495 2662-1509 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s42865-020-00011-8 |
container_title |
Bulletin of Atmospheric Science and Technology |
container_volume |
1 |
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2 |
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155 |
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177 |
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1766244598758244352 |