The role of droplet spectra for cloud radiative properties
Abstract The evolution of different types of clouds is simulated with a spectral scavenging and microphysics model, DESCAM, coupled to the dynamics of an ascending and entraining air‐parcel model. the resulting microphysical properties of the cloud are then coupled with a radiative‐transfer model in...
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crwiley:10.1002/qj.49712354404 2024-06-02T08:11:22+00:00 The role of droplet spectra for cloud radiative properties Hatzianastassiou, Nikos Wobrock, Wolfram Flossma, Andrea I. 1997 http://dx.doi.org/10.1002/qj.49712354404 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49712354404 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49712354404 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Quarterly Journal of the Royal Meteorological Society volume 123, issue 544, page 2215-2230 ISSN 0035-9009 1477-870X journal-article 1997 crwiley https://doi.org/10.1002/qj.49712354404 2024-05-03T10:46:39Z Abstract The evolution of different types of clouds is simulated with a spectral scavenging and microphysics model, DESCAM, coupled to the dynamics of an ascending and entraining air‐parcel model. the resulting microphysical properties of the cloud are then coupled with a radiative‐transfer model in order to calculate the optical properties, the up‐ and downgoing radiative fluxes, the cloud optical depth, and the cloud albedo. For a stratiform cloud investigated during the North Atlantic Regional Experiment good agreement with the experimental data is obtained. For a medium‐sized convective cloud developing in marine or continental air the calculated cloud optical depth and the cloud albedo are compared with current parametrizations in global circulation models. the largest deviations are observed for cases with a large effective radius, e.g. when the cloud developed precipitation. In general, cloud optical depth and cloud albedo per unit cloud depth decrease with time, caused by the broadening of the cloud‐drop spectrum. Article in Journal/Newspaper North Atlantic Wiley Online Library Quarterly Journal of the Royal Meteorological Society 123 544 2215 2230 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The evolution of different types of clouds is simulated with a spectral scavenging and microphysics model, DESCAM, coupled to the dynamics of an ascending and entraining air‐parcel model. the resulting microphysical properties of the cloud are then coupled with a radiative‐transfer model in order to calculate the optical properties, the up‐ and downgoing radiative fluxes, the cloud optical depth, and the cloud albedo. For a stratiform cloud investigated during the North Atlantic Regional Experiment good agreement with the experimental data is obtained. For a medium‐sized convective cloud developing in marine or continental air the calculated cloud optical depth and the cloud albedo are compared with current parametrizations in global circulation models. the largest deviations are observed for cases with a large effective radius, e.g. when the cloud developed precipitation. In general, cloud optical depth and cloud albedo per unit cloud depth decrease with time, caused by the broadening of the cloud‐drop spectrum. |
format |
Article in Journal/Newspaper |
author |
Hatzianastassiou, Nikos Wobrock, Wolfram Flossma, Andrea I. |
spellingShingle |
Hatzianastassiou, Nikos Wobrock, Wolfram Flossma, Andrea I. The role of droplet spectra for cloud radiative properties |
author_facet |
Hatzianastassiou, Nikos Wobrock, Wolfram Flossma, Andrea I. |
author_sort |
Hatzianastassiou, Nikos |
title |
The role of droplet spectra for cloud radiative properties |
title_short |
The role of droplet spectra for cloud radiative properties |
title_full |
The role of droplet spectra for cloud radiative properties |
title_fullStr |
The role of droplet spectra for cloud radiative properties |
title_full_unstemmed |
The role of droplet spectra for cloud radiative properties |
title_sort |
role of droplet spectra for cloud radiative properties |
publisher |
Wiley |
publishDate |
1997 |
url |
http://dx.doi.org/10.1002/qj.49712354404 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49712354404 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49712354404 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 123, issue 544, page 2215-2230 ISSN 0035-9009 1477-870X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/qj.49712354404 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
123 |
container_issue |
544 |
container_start_page |
2215 |
op_container_end_page |
2230 |
_version_ |
1800757489391632384 |