Comparison of three retrievals of COSMIC GPS radio occultation results in the tropical upper troposphere and lower stratosphere

• 資料種別: 記事
• タイトル: Comparison of three retrievals of COSMIC GPS radio occultation results in the tropical upper troposphere and lower stratosphere
• 著者・編者: Noersomadi; Toshitaka Tsuda
• 出版事項: 日本 : Springer Nature
• 出版年月日等: 2017-09-11
• 出版年（W3CDTF）: 2017-09-11
• タイトル（掲載誌）: EPS : Earth, Planets and Space
• 巻号年月日等（掲載誌）: 69(125)
• 掲載巻: 69(125)
• ISSN（掲載誌）: 1880-5981
• ISSN-L（掲載誌）: 1343-8832
• 本文の言語コード: eng
• DOI: 10.1186/s40623-017-0710-7; https://doi.org/10.1186/s40623-017-0710-7
• 国立国会図書館永続的識別子: info:ndljp/pid/10953853; https://dl.ndl.go.jp/pid/10953853
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他; https://dl.ndl.go.jp/collections/B00035
• 収集根拠: オンライン資料収集制度
• 受理日（W3CDTF）: 2017-09-14T21:01:06+09:00
• 保存日（W3CDTF）: 2017-09-14
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: http://earth-planets-space.springeropen.com/articles
• 掲載誌（国立国会図書館永続的識別子）: info:ndljp/pid/10319651; https://dl.ndl.go.jp/pid/10319651
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

• 要約等: Combining geometrical optics (GO) and wave optics (WO), the COSMIC data analysis and archive center (CDAAC) retrieved two sets of dry atmosphere temperatures (T) from COSMIC GPS radio occultation (GPS-RO), which are called atmPrf2010 and atmPrf2013. In atmPrf2010, the sewing height between WO and GO varies between 10 and 20 km, but is fixed at 20 km for atmPrf2013. The height resolution of the atmPrf2010 depends on the sewing height, while the T profiles by atmPrf2013 are smoothed over 500 m. We also derived T by applying WO throughout the troposphere and the stratosphere up to a 30-km altitude, which is called rishfsi2013. The three retrievals have different characteristics in the height resolution around the tropopause. Therefore, we aim to examine a possible discrepancy in the statistical results of the cold-point tropopause (CPT) and the lapse rate tropopause (LRT) among the three datasets, conducting their inter-comparisons as well as the comparison between GPS-RO and the simultaneous radiosonde dataset. We investigate the T variations in the upper troposphere and lower stratosphere (UTLS) over the tropics from October 1, 2011, to March 31, 2012, when radiosonde soundings were conducted as the CINDY-DYNAMO 2011 campaign. The mean T profiles are consistent between atmPrf2010 and atmPrf2013, but rishfsi2013 results are colder (warmer) than the CDAAC retrievals below (above) the tropopause. The mean T difference between atmPrf2013 and atmPrf2010 is 0.17 K at the cold-point tropopause (CPT) and −0.38 K at the lapse rate tropopause (LRT). On the other hand, rishfsi2013 shows a colder T at CPT by −0.77 and −0.59 K relative to atmPrf2013 and atmPrf2010, respectively, and the warmer T by 0.60 and 0.20 Kd at LRT. During CINDY-DYNAMO, we found 134 radiosonde soundings that coincide with GPS-RO within ±3 h and are collocated within 200 km from GPS-RO. The mean T difference at CPT from the radiosondes is 0.32, 0.49 and −0.24 K for atmPrf2010, atmPrf2013 and rishfsi2013, respectively. Both atmPrf2013 and atmPrf2010 have a positive bias at CPT, while rishfsi2013 has a negative one. Similar comparisons at LRT are −0.45, −0.69 and −0.41 K, respectively, showing a negative bias for all GPS-RO retrievals. The results show that rishfsi2013 is consistent with the retrievals at CDAAC and the radiosondes. Due to its good height resolution, rishfsi2013 is useful for studies on mesoscale T perturbations in the UTLS.
• DOI: 10.1186/s40623-017-0710-7; https://doi.org/10.1186/s40623-017-0710-7
• オンライン閲覧公開範囲: インターネット公開
• 著作権情報: © The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
• 関連情報（URI）: http://hdl.handle.net/2433/227886; http://id.ndl.go.jp/digimeta/10953853; https://dl.ndl.go.jp/pid/10953853; http://link.springer.com/content/pdf/10.1186/s40623-017-0710-7.pdf; http://link.springer.com/article/10.1186/s40623-017-0710-7/fulltext.html
• 参照: Coordinated Upper-troposphere-to-stratosphere Balloon Experiment in Biak (CUBE/Biak); https://cir.nii.ac.jp/crid/1050587981429788160; Influence of ENSO and MJO on the zonal structure of tropical tropopause inversion layer using high-resolution temperature profiles retrieved from COSMIC GPS Radio Occultation; https://cir.nii.ac.jp/crid/1360016870561409280; Tropical Temperature Variability in the UTLS: New Insights from GPS Radio Occultation Observations; https://cir.nii.ac.jp/crid/1360572092737367808
• 参照: Analysis of vertical wave number spectrum of atmospheric gravity waves in the stratosphere using COSMIC GPS radio occultation data; https://cir.nii.ac.jp/crid/1050845760650943616; Observing Earth's atmosphere with radio occultation measurements using the Global Positioning System; https://cir.nii.ac.jp/crid/1360011142936209920; Quantifying uncertainty in climatological fields from GPS radio occultation: an empirical-analytical error model; https://cir.nii.ac.jp/crid/1360011144490928896; Exploring Earth's atmosphere with radio occultation: contributions to weather, climate and space weather; https://cir.nii.ac.jp/crid/1360011145915875968; Representativeness errors for radiosonde observations; https://cir.nii.ac.jp/crid/1360292618596243584; Optimal Noise Filtering for the Ionospheric Correction of GPS Radio Occultation Signals; https://cir.nii.ac.jp/crid/1360292618953127936; Tropical Cold-Point Tropopause: Climatology, Seasonal Cycle, and Intraseasonal Variability Derived from COSMIC GPS Radio Occultation Measurements; https://cir.nii.ac.jp/crid/1360292620533047296; Global distribution of atmospheric waves in the equatorial upper troposphere and lower stratosphere: COSMIC observations of wave mean flow interactions; https://cir.nii.ac.jp/crid/1360292621050338176; Geometrical optics phase matching of radio occultation signals; https://cir.nii.ac.jp/crid/1360574092888804352; Full Spectrum Inversion of radio occultation signals; https://cir.nii.ac.jp/crid/1360574092889608320; On the uncertainty of radio occultation inversions in the lower troposphere; https://cir.nii.ac.jp/crid/1360574094862816256; Comparing radiosonde and COSMIC atmospheric profile data to quantify differences among radiosonde types and the effects of imperfect collocation on comparison statistics; https://cir.nii.ac.jp/crid/1360574095391795456; The occurrence of cirrus clouds associated with eastward propagating equatorial <i>n</i> = 0 inertio‐gravity and Kelvin waves in November 2011 during the CINDY2011/DYNAMO campaign; https://cir.nii.ac.jp/crid/1360848654731200256; Cracking the MJO nut; https://cir.nii.ac.jp/crid/1361137044722959616; Analysis of wave fields by Fourier integral operators and their application for radio occultations; https://cir.nii.ac.jp/crid/1361137044999655424; Assessment of COSMIC radio occultation retrieval product using global radiosonde data; https://cir.nii.ac.jp/crid/1361418518475206528; Ionospheric correction of GPS radio occultation data in the troposphere; https://cir.nii.ac.jp/crid/1361699993707057408; Comparison of GPS radio occultation soundings with radiosondes; https://cir.nii.ac.jp/crid/1361981470537172608; Validation of FORMOSAT-3/COSMIC level 2 "atmPrf" global temperature data in the stratosphere; https://cir.nii.ac.jp/crid/1362262943900641152; Tropical tropopause layer; https://cir.nii.ac.jp/crid/1362262945862803968; Analysis of GPS radio occultation data from the FORMOSAT-3/COSMIC and Metop/GRAS missions at CDAAC; https://cir.nii.ac.jp/crid/1362544418887015168; The COSMIC/FORMOSAT-3 Mission: Early Results; https://cir.nii.ac.jp/crid/1362544419823014144; Reconstruction of internal gravity wave parameters from radio occultation retrievals of vertical temperature profiles in the Earth's atmosphere; https://cir.nii.ac.jp/crid/1362825894194304640; GPS Sounding of the Atmosphere from Low Earth Orbit: Preliminary Results; https://cir.nii.ac.jp/crid/1362825894550383488; Use of the L2C signal for inversions of GPS radio occultation data in the neutral atmosphere; https://cir.nii.ac.jp/crid/1362825895504294784; Global multiple tropopause features derived from COSMIC radio occultation data during 2007 to 2012; https://cir.nii.ac.jp/crid/1363107369420576128; Tracking Pulses of the Madden–Julian Oscillation; https://cir.nii.ac.jp/crid/1363388845232424832; Climate intercomparison of GPS radio occultation, RS90/92 radiosondes and GRUAN from 2002 to 2013; https://cir.nii.ac.jp/crid/1363388846254722688; GPS radio occultation for climate monitoring and change detection; https://cir.nii.ac.jp/crid/1363670320685508992; THE EXTRATROPICAL UPPER TROPOSPHERE AND LOWER STRATOSPHERE; https://cir.nii.ac.jp/crid/1363951793219902464; Canonical transform method for processing radio occultation data in the lower troposphere; https://cir.nii.ac.jp/crid/1363951795295002112; On the variability of temperature profiles in the stratosphere: Implications for validation; https://cir.nii.ac.jp/crid/1363951795917569024; Tropical temperature variability and Kelvin-wave activity in the UTLS from GPS RO measurements; https://cir.nii.ac.jp/crid/1364233270540897920; Inversion and Error Estimation of GPS Radio Occultation Data (3.Application of GPS Data to Atmospheric Science); https://cir.nii.ac.jp/crid/1390282681478529920
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: 学術機関リポジトリデータベース; https://irdb.nii.ac.jp; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; Crossref; https://www.crossref.org; CiNii Articles; 科学研究費助成事業データベース; https://kaken.nii.ac.jp/ja
• 書誌ID（NDLBibID）: 10953853; http://id.ndl.go.jp/bib/10953853
• NII論文ID: 120006364091