Near-tropopause bias in the Russian radiosonde-observed air temperature during the YOPP special observing periods in 2018
Taking advantage of a unique configuration of upper-atmospheric observing stations, we used enhanced radiosonde observations acquired during the Year of Polar Prediction (YOPP) at Ice Base Cape Baranova in 2018 to quantify the observational bias of a nearby station, i.e., GMO IM. E. K. Fedorova loca...
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ftnipr:oai:nipr.repo.nii.ac.jp:00016395 2023-05-15T15:05:21+02:00 Near-tropopause bias in the Russian radiosonde-observed air temperature during the YOPP special observing periods in 2018 2021-03 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16395 http://id.nii.ac.jp/1291/00016273/ en eng https://doi.org/10.1016/j.polar.2020.100601 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16395 http://id.nii.ac.jp/1291/00016273/ Polar Science, 100601(2021-03) 18739652 Observational uncertainty Radiosonde Arctic challenge for sustainability Year of polar prediction Journal Article 2021 ftnipr https://doi.org/10.1016/j.polar.2020.100601 2022-12-03T19:43:21Z Taking advantage of a unique configuration of upper-atmospheric observing stations, we used enhanced radiosonde observations acquired during the Year of Polar Prediction (YOPP) at Ice Base Cape Baranova in 2018 to quantify the observational bias of a nearby station, i.e., GMO IM. E. K. Fedorova located 184 km to the southeast. Radiosonde observations from Fedorova are transmitted to the Global Telecommunications System and thus assimilated into numerical forecast products; however, those from Baranova are not, providing a situation favorable for quantifying observational bias. In comparison with the background field of the ERA5 reanalysis dataset, the Fedorova temperature profile exhibited cold bias in the lower stratosphere during the cold season in addition to a periodic warm/cold bias dipole in the upper troposphere and lower stratosphere. It is concluded that such bias is the product of both radiosonde sensor error and radar inaccuracies at Russian observational stations, given a similar result found at the Yuzhno-Sakhalinsk station. Article in Journal/Newspaper Arctic Polar Science Polar Science National Institute of Polar Research Repository, Japan Arctic Baranova ENVELOPE(159.744,159.744,53.931,53.931) Polar Science 27 100601 |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
Observational uncertainty Radiosonde Arctic challenge for sustainability Year of polar prediction |
spellingShingle |
Observational uncertainty Radiosonde Arctic challenge for sustainability Year of polar prediction Near-tropopause bias in the Russian radiosonde-observed air temperature during the YOPP special observing periods in 2018 |
topic_facet |
Observational uncertainty Radiosonde Arctic challenge for sustainability Year of polar prediction |
description |
Taking advantage of a unique configuration of upper-atmospheric observing stations, we used enhanced radiosonde observations acquired during the Year of Polar Prediction (YOPP) at Ice Base Cape Baranova in 2018 to quantify the observational bias of a nearby station, i.e., GMO IM. E. K. Fedorova located 184 km to the southeast. Radiosonde observations from Fedorova are transmitted to the Global Telecommunications System and thus assimilated into numerical forecast products; however, those from Baranova are not, providing a situation favorable for quantifying observational bias. In comparison with the background field of the ERA5 reanalysis dataset, the Fedorova temperature profile exhibited cold bias in the lower stratosphere during the cold season in addition to a periodic warm/cold bias dipole in the upper troposphere and lower stratosphere. It is concluded that such bias is the product of both radiosonde sensor error and radar inaccuracies at Russian observational stations, given a similar result found at the Yuzhno-Sakhalinsk station. |
format |
Article in Journal/Newspaper |
title |
Near-tropopause bias in the Russian radiosonde-observed air temperature during the YOPP special observing periods in 2018 |
title_short |
Near-tropopause bias in the Russian radiosonde-observed air temperature during the YOPP special observing periods in 2018 |
title_full |
Near-tropopause bias in the Russian radiosonde-observed air temperature during the YOPP special observing periods in 2018 |
title_fullStr |
Near-tropopause bias in the Russian radiosonde-observed air temperature during the YOPP special observing periods in 2018 |
title_full_unstemmed |
Near-tropopause bias in the Russian radiosonde-observed air temperature during the YOPP special observing periods in 2018 |
title_sort |
near-tropopause bias in the russian radiosonde-observed air temperature during the yopp special observing periods in 2018 |
publishDate |
2021 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16395 http://id.nii.ac.jp/1291/00016273/ |
long_lat |
ENVELOPE(159.744,159.744,53.931,53.931) |
geographic |
Arctic Baranova |
geographic_facet |
Arctic Baranova |
genre |
Arctic Polar Science Polar Science |
genre_facet |
Arctic Polar Science Polar Science |
op_relation |
https://doi.org/10.1016/j.polar.2020.100601 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16395 http://id.nii.ac.jp/1291/00016273/ Polar Science, 100601(2021-03) 18739652 |
op_doi |
https://doi.org/10.1016/j.polar.2020.100601 |
container_title |
Polar Science |
container_volume |
27 |
container_start_page |
100601 |
_version_ |
1766337059232940032 |