Characterization of shallow oceanic precipitation using profiling and scanning radar observations at the Eastern North Atlantic ARM observatory
Shallow oceanic precipitation variability is documented using three second-generation radar systems located at the Atmospheric Radiation Measurement (ARM) Eastern North Atlantic observatory: ARM zenith radar (KAZR2), the Ka-band scanning ARM cloud radar (KaSACR2) and the X-band scanning ARM precipit...
Published in: | Atmospheric Measurement Techniques |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00040264 2023-05-15T17:31:23+02:00 Characterization of shallow oceanic precipitation using profiling and scanning radar observations at the Eastern North Atlantic ARM observatory Lamer, Katia Puigdomènech Treserras, Bernat Zhu, Zeen Isom, Bradley Bharadwaj, Nitin Kollias, Pavlos 2019-09 electronic https://doi.org/10.5194/amt-12-4931-2019 https://noa.gwlb.de/receive/cop_mods_00040264 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00039890/amt-12-4931-2019.pdf https://amt.copernicus.org/articles/12/4931/2019/amt-12-4931-2019.pdf eng eng Copernicus Publications Atmospheric Measurement Techniques -- http://www.bibliothek.uni-regensburg.de/ezeit/?2505596 -- http://www.atmospheric-measurement-techniques.net/ -- 1867-8548 https://doi.org/10.5194/amt-12-4931-2019 https://noa.gwlb.de/receive/cop_mods_00040264 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00039890/amt-12-4931-2019.pdf https://amt.copernicus.org/articles/12/4931/2019/amt-12-4931-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/amt-12-4931-2019 2022-02-08T22:42:12Z Shallow oceanic precipitation variability is documented using three second-generation radar systems located at the Atmospheric Radiation Measurement (ARM) Eastern North Atlantic observatory: ARM zenith radar (KAZR2), the Ka-band scanning ARM cloud radar (KaSACR2) and the X-band scanning ARM precipitation radar (XSAPR2). First, the radar systems and measurement post-processing techniques, including sea-clutter removal and calibration against colocated disdrometer and Global Precipitation Mission (GPM) observations are described. Then, we present how a combination of profiling radar and lidar observations can be used to estimate adaptive (in both time and height) parameters that relate radar reflectivity (Z) to precipitation rate (R) in the form Z=αRβ, which we use to estimate precipitation rate over the domain observed by XSAPR2. Furthermore, constant altitude plan position indicator (CAPPI) gridded XSAPR2 precipitation rate maps are also constructed. Hourly precipitation rate statistics estimated from the three radar systems differ because KAZR2 is more sensitive to shallow virga and XSAPR2 suffers from less attenuation than KaSACR2 and as such is best suited for characterizing intermittent and mesoscale-organized precipitation. Further analysis reveals that precipitation rate statistics obtained by averaging 12 h of KAZR2 observations can be used to approximate that of a 40 km radius domain averaged over similar time periods. However, it was determined that KAZR2 is unsuitable for characterizing domain-averaged precipitation rate over shorter periods. But even more fundamentally, these results suggest that these observations cannot produce an objective domain precipitation estimate and that the simultaneous use of forward simulators is desirable to guide model evaluation studies. Article in Journal/Newspaper North Atlantic Niedersächsisches Online-Archiv NOA Atmospheric Measurement Techniques 12 9 4931 4947 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Lamer, Katia Puigdomènech Treserras, Bernat Zhu, Zeen Isom, Bradley Bharadwaj, Nitin Kollias, Pavlos Characterization of shallow oceanic precipitation using profiling and scanning radar observations at the Eastern North Atlantic ARM observatory |
topic_facet |
article Verlagsveröffentlichung |
description |
Shallow oceanic precipitation variability is documented using three second-generation radar systems located at the Atmospheric Radiation Measurement (ARM) Eastern North Atlantic observatory: ARM zenith radar (KAZR2), the Ka-band scanning ARM cloud radar (KaSACR2) and the X-band scanning ARM precipitation radar (XSAPR2). First, the radar systems and measurement post-processing techniques, including sea-clutter removal and calibration against colocated disdrometer and Global Precipitation Mission (GPM) observations are described. Then, we present how a combination of profiling radar and lidar observations can be used to estimate adaptive (in both time and height) parameters that relate radar reflectivity (Z) to precipitation rate (R) in the form Z=αRβ, which we use to estimate precipitation rate over the domain observed by XSAPR2. Furthermore, constant altitude plan position indicator (CAPPI) gridded XSAPR2 precipitation rate maps are also constructed. Hourly precipitation rate statistics estimated from the three radar systems differ because KAZR2 is more sensitive to shallow virga and XSAPR2 suffers from less attenuation than KaSACR2 and as such is best suited for characterizing intermittent and mesoscale-organized precipitation. Further analysis reveals that precipitation rate statistics obtained by averaging 12 h of KAZR2 observations can be used to approximate that of a 40 km radius domain averaged over similar time periods. However, it was determined that KAZR2 is unsuitable for characterizing domain-averaged precipitation rate over shorter periods. But even more fundamentally, these results suggest that these observations cannot produce an objective domain precipitation estimate and that the simultaneous use of forward simulators is desirable to guide model evaluation studies. |
format |
Article in Journal/Newspaper |
author |
Lamer, Katia Puigdomènech Treserras, Bernat Zhu, Zeen Isom, Bradley Bharadwaj, Nitin Kollias, Pavlos |
author_facet |
Lamer, Katia Puigdomènech Treserras, Bernat Zhu, Zeen Isom, Bradley Bharadwaj, Nitin Kollias, Pavlos |
author_sort |
Lamer, Katia |
title |
Characterization of shallow oceanic precipitation using profiling and scanning radar observations at the Eastern North Atlantic ARM observatory |
title_short |
Characterization of shallow oceanic precipitation using profiling and scanning radar observations at the Eastern North Atlantic ARM observatory |
title_full |
Characterization of shallow oceanic precipitation using profiling and scanning radar observations at the Eastern North Atlantic ARM observatory |
title_fullStr |
Characterization of shallow oceanic precipitation using profiling and scanning radar observations at the Eastern North Atlantic ARM observatory |
title_full_unstemmed |
Characterization of shallow oceanic precipitation using profiling and scanning radar observations at the Eastern North Atlantic ARM observatory |
title_sort |
characterization of shallow oceanic precipitation using profiling and scanning radar observations at the eastern north atlantic arm observatory |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/amt-12-4931-2019 https://noa.gwlb.de/receive/cop_mods_00040264 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00039890/amt-12-4931-2019.pdf https://amt.copernicus.org/articles/12/4931/2019/amt-12-4931-2019.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Atmospheric Measurement Techniques -- http://www.bibliothek.uni-regensburg.de/ezeit/?2505596 -- http://www.atmospheric-measurement-techniques.net/ -- 1867-8548 https://doi.org/10.5194/amt-12-4931-2019 https://noa.gwlb.de/receive/cop_mods_00040264 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00039890/amt-12-4931-2019.pdf https://amt.copernicus.org/articles/12/4931/2019/amt-12-4931-2019.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/amt-12-4931-2019 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
12 |
container_issue |
9 |
container_start_page |
4931 |
op_container_end_page |
4947 |
_version_ |
1766128909746700288 |