Connections between supercooled liquid water clouds, melting layer and precipitation phase transitions at the Antarctic Peninsula
Co-existence of ice and liquid clouds plays an important role in the cloud life cycle, as well as in precipitation formation and radiative balance. According to satellite observations, coastal regions show the most important proportion of supercooled liquid water (SLW) content in mixed-phase clouds...
Main Authors: | , , , , |
---|---|
Format: | Conference Object |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021310 |
id |
ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5021310 |
---|---|
record_format |
openpolar |
spelling |
ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5021310 2023-07-30T03:56:49+02:00 Connections between supercooled liquid water clouds, melting layer and precipitation phase transitions at the Antarctic Peninsula Duran-Alarcon, C. Gorodetskaya, I. Rowe, P. Favier, V. Park, S. 2023-07-11 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021310 eng eng info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-4910 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021310 XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) info:eu-repo/semantics/conferenceObject 2023 ftgfzpotsdam https://doi.org/10.57757/IUGG23-4910 2023-07-09T23:40:20Z Co-existence of ice and liquid clouds plays an important role in the cloud life cycle, as well as in precipitation formation and radiative balance. According to satellite observations, coastal regions show the most important proportion of supercooled liquid water (SLW) content in mixed-phase clouds (20-60%), while in the interior this proportion decreases significantly, up to less than 10% in the high Antarctic Plateau (Listowski, et al., 2019). This study is based on two field campaigns on King George Island, northern Antarctic Peninsula, at Escudero station (Portuguese Polar Program projects TULIP/APMAR, February 2022) and King Sejong station (APMAR2 project, February 2023). We present the results of the measurements of SLW content using a new instrument, the universal water content (UWC) sensor, capable to measure both the total and supercooled liquid water content in clouds, by using two vibrating wires sensible to the liquid droplets. We combine the UWC measurements with vertical profiles of tropospheric clouds using a mini-pulse lidar (data provided via MPLnet network) and a vertically-pointing micro rain radar (MRR-2 at Escudero, and a higher vertical resolution MRR-Pro at King Sejong), radiosonde measurements and ERA5 reanalysis data to characterize the tropospheric thermodynamic structure, the melting layer and the precipitation phase transitions. During preliminary case studies, ERA5 specific liquid cloud content vertical profiles showed an agreement with the UWC sensor in the detection of liquid water layers below 2 km altitude, however ERA5 still presents problems to represent the presence of liquid layer clouds at higher altitudes. Conference Object Antarc* Antarctic Antarctic Peninsula King George Island GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Antarctic Antarctic Peninsula Escudero ENVELOPE(-64.817,-64.817,-67.317,-67.317) Escudero Station ENVELOPE(-58.963,-58.963,-62.201,-62.201) King George Island King Sejong Station ENVELOPE(-58.783,-58.783,-62.220,-62.220) The Antarctic |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
Co-existence of ice and liquid clouds plays an important role in the cloud life cycle, as well as in precipitation formation and radiative balance. According to satellite observations, coastal regions show the most important proportion of supercooled liquid water (SLW) content in mixed-phase clouds (20-60%), while in the interior this proportion decreases significantly, up to less than 10% in the high Antarctic Plateau (Listowski, et al., 2019). This study is based on two field campaigns on King George Island, northern Antarctic Peninsula, at Escudero station (Portuguese Polar Program projects TULIP/APMAR, February 2022) and King Sejong station (APMAR2 project, February 2023). We present the results of the measurements of SLW content using a new instrument, the universal water content (UWC) sensor, capable to measure both the total and supercooled liquid water content in clouds, by using two vibrating wires sensible to the liquid droplets. We combine the UWC measurements with vertical profiles of tropospheric clouds using a mini-pulse lidar (data provided via MPLnet network) and a vertically-pointing micro rain radar (MRR-2 at Escudero, and a higher vertical resolution MRR-Pro at King Sejong), radiosonde measurements and ERA5 reanalysis data to characterize the tropospheric thermodynamic structure, the melting layer and the precipitation phase transitions. During preliminary case studies, ERA5 specific liquid cloud content vertical profiles showed an agreement with the UWC sensor in the detection of liquid water layers below 2 km altitude, however ERA5 still presents problems to represent the presence of liquid layer clouds at higher altitudes. |
format |
Conference Object |
author |
Duran-Alarcon, C. Gorodetskaya, I. Rowe, P. Favier, V. Park, S. |
spellingShingle |
Duran-Alarcon, C. Gorodetskaya, I. Rowe, P. Favier, V. Park, S. Connections between supercooled liquid water clouds, melting layer and precipitation phase transitions at the Antarctic Peninsula |
author_facet |
Duran-Alarcon, C. Gorodetskaya, I. Rowe, P. Favier, V. Park, S. |
author_sort |
Duran-Alarcon, C. |
title |
Connections between supercooled liquid water clouds, melting layer and precipitation phase transitions at the Antarctic Peninsula |
title_short |
Connections between supercooled liquid water clouds, melting layer and precipitation phase transitions at the Antarctic Peninsula |
title_full |
Connections between supercooled liquid water clouds, melting layer and precipitation phase transitions at the Antarctic Peninsula |
title_fullStr |
Connections between supercooled liquid water clouds, melting layer and precipitation phase transitions at the Antarctic Peninsula |
title_full_unstemmed |
Connections between supercooled liquid water clouds, melting layer and precipitation phase transitions at the Antarctic Peninsula |
title_sort |
connections between supercooled liquid water clouds, melting layer and precipitation phase transitions at the antarctic peninsula |
publishDate |
2023 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021310 |
long_lat |
ENVELOPE(-64.817,-64.817,-67.317,-67.317) ENVELOPE(-58.963,-58.963,-62.201,-62.201) ENVELOPE(-58.783,-58.783,-62.220,-62.220) |
geographic |
Antarctic Antarctic Peninsula Escudero Escudero Station King George Island King Sejong Station The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Escudero Escudero Station King George Island King Sejong Station The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula King George Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula King George Island |
op_source |
XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-4910 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021310 |
op_doi |
https://doi.org/10.57757/IUGG23-4910 |
_version_ |
1772814700731432960 |