A radiation closure study of Arctic stratus cloud microphysical properties using the collocated satellite-surface data and Fu-Liou radiative transfer model
Retrievals of cloud microphysical properties based on passive satellite imagery are especially difficult over snow-covered surfaces because of the bright and cold surface. To help quantify their uncertainties, single-layered overcast liquid-phase Arctic stratus cloud microphysical properties retriev...
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ftcdlib:oai:escholarship.org/ark:/13030/qt5d58q1v4 2023-05-15T14:56:55+02:00 A radiation closure study of Arctic stratus cloud microphysical properties using the collocated satellite-surface data and Fu-Liou radiative transfer model Dong, X Xi, B Qiu, S Minnis, P Sun-Mack, S Rose, F 10 - 198 2016-01-01 application/pdf https://escholarship.org/uc/item/5d58q1v4 unknown eScholarship, University of California qt5d58q1v4 https://escholarship.org/uc/item/5d58q1v4 public Journal of Geophysical Research, vol 121, iss 17 Arctic stratus cloud properties radiation closure study surface remote sensing satellite remote sensing Atmospheric Sciences Physical Geography and Environmental Geoscience Meteorology & Atmospheric Sciences article 2016 ftcdlib 2021-06-21T17:05:24Z Retrievals of cloud microphysical properties based on passive satellite imagery are especially difficult over snow-covered surfaces because of the bright and cold surface. To help quantify their uncertainties, single-layered overcast liquid-phase Arctic stratus cloud microphysical properties retrieved by using the Clouds and the Earth’s Radiant Energy System Edition 2 and Edition 4 (CERES Ed2 and Ed4) algorithms are compared with ground-based retrievals at the Atmospheric Radiation Measurement North Slope of Alaska (ARM NSA) site at Barrow, AK, during the period from March 2000 to December 2006. A total of 206 and 140 snow-free cases (Rsfc ≤ 0.3), and 108 and 106 snow cases (Rsfc>0.3), respectively, were selected from Terra and Aqua satellite passes over the ARM NSA site. The CERES Ed4 and Ed2 optical depth (t) and liquid water path (LWP) retrievals from both Terra and Aqua are almost identical and have excellent agreement with ARM retrievals under snow-free and snow conditions. In order to reach a radiation closure study for both the surface and top of atmosphere (TOA) radiation budgets, the ARM precision spectral pyranometer-measured surface albedos were adjusted (63.6% and 80% of the ARM surface albedos for snow-free and snow cases, respectively) to account for the water and land components of the domain of 30 km × 30 km. Most of the radiative transfer model calculated SW↓sfc and SW↑TOA fluxes by using ARM and CERES cloud retrievals and the domain mean albedos as input agree with the ARM and CERES flux observations within 10Wm-2 for both snow-free and snow conditions. Sensitivity studies show that the ARM LWP and re retrievals are less dependent on solar zenith angle (SZA), but all retrieved optical depths increase with SZA. Article in Journal/Newspaper Arctic Barrow north slope Alaska University of California: eScholarship Arctic |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Arctic stratus cloud properties radiation closure study surface remote sensing satellite remote sensing Atmospheric Sciences Physical Geography and Environmental Geoscience Meteorology & Atmospheric Sciences |
spellingShingle |
Arctic stratus cloud properties radiation closure study surface remote sensing satellite remote sensing Atmospheric Sciences Physical Geography and Environmental Geoscience Meteorology & Atmospheric Sciences Dong, X Xi, B Qiu, S Minnis, P Sun-Mack, S Rose, F A radiation closure study of Arctic stratus cloud microphysical properties using the collocated satellite-surface data and Fu-Liou radiative transfer model |
topic_facet |
Arctic stratus cloud properties radiation closure study surface remote sensing satellite remote sensing Atmospheric Sciences Physical Geography and Environmental Geoscience Meteorology & Atmospheric Sciences |
description |
Retrievals of cloud microphysical properties based on passive satellite imagery are especially difficult over snow-covered surfaces because of the bright and cold surface. To help quantify their uncertainties, single-layered overcast liquid-phase Arctic stratus cloud microphysical properties retrieved by using the Clouds and the Earth’s Radiant Energy System Edition 2 and Edition 4 (CERES Ed2 and Ed4) algorithms are compared with ground-based retrievals at the Atmospheric Radiation Measurement North Slope of Alaska (ARM NSA) site at Barrow, AK, during the period from March 2000 to December 2006. A total of 206 and 140 snow-free cases (Rsfc ≤ 0.3), and 108 and 106 snow cases (Rsfc>0.3), respectively, were selected from Terra and Aqua satellite passes over the ARM NSA site. The CERES Ed4 and Ed2 optical depth (t) and liquid water path (LWP) retrievals from both Terra and Aqua are almost identical and have excellent agreement with ARM retrievals under snow-free and snow conditions. In order to reach a radiation closure study for both the surface and top of atmosphere (TOA) radiation budgets, the ARM precision spectral pyranometer-measured surface albedos were adjusted (63.6% and 80% of the ARM surface albedos for snow-free and snow cases, respectively) to account for the water and land components of the domain of 30 km × 30 km. Most of the radiative transfer model calculated SW↓sfc and SW↑TOA fluxes by using ARM and CERES cloud retrievals and the domain mean albedos as input agree with the ARM and CERES flux observations within 10Wm-2 for both snow-free and snow conditions. Sensitivity studies show that the ARM LWP and re retrievals are less dependent on solar zenith angle (SZA), but all retrieved optical depths increase with SZA. |
format |
Article in Journal/Newspaper |
author |
Dong, X Xi, B Qiu, S Minnis, P Sun-Mack, S Rose, F |
author_facet |
Dong, X Xi, B Qiu, S Minnis, P Sun-Mack, S Rose, F |
author_sort |
Dong, X |
title |
A radiation closure study of Arctic stratus cloud microphysical properties using the collocated satellite-surface data and Fu-Liou radiative transfer model |
title_short |
A radiation closure study of Arctic stratus cloud microphysical properties using the collocated satellite-surface data and Fu-Liou radiative transfer model |
title_full |
A radiation closure study of Arctic stratus cloud microphysical properties using the collocated satellite-surface data and Fu-Liou radiative transfer model |
title_fullStr |
A radiation closure study of Arctic stratus cloud microphysical properties using the collocated satellite-surface data and Fu-Liou radiative transfer model |
title_full_unstemmed |
A radiation closure study of Arctic stratus cloud microphysical properties using the collocated satellite-surface data and Fu-Liou radiative transfer model |
title_sort |
radiation closure study of arctic stratus cloud microphysical properties using the collocated satellite-surface data and fu-liou radiative transfer model |
publisher |
eScholarship, University of California |
publishDate |
2016 |
url |
https://escholarship.org/uc/item/5d58q1v4 |
op_coverage |
10 - 198 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow north slope Alaska |
genre_facet |
Arctic Barrow north slope Alaska |
op_source |
Journal of Geophysical Research, vol 121, iss 17 |
op_relation |
qt5d58q1v4 https://escholarship.org/uc/item/5d58q1v4 |
op_rights |
public |
_version_ |
1766328978323275776 |