{"created":"2023-06-20T14:52:51.742094+00:00","id":21026,"links":{},"metadata":{"_buckets":{"deposit":"35db1a5c-7b15-4579-9423-d45c33911c63"},"_deposit":{"created_by":1,"id":"21026","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"21026"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00021026","sets":["1543:1853","1887:1891"]},"author_link":["199280","199283","199281","199282","199278","199279","199277"],"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2005-11-07","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{}]}]},"item_4_description_14":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第5回全球降水観測(GPM)計画国際ワークショップ (2005年11月7-9日. 品川プリンスホテル), 港区, 東京","subitem_description_type":"Other"}]},"item_4_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"The 5th GPM International Planning Workshop (November 7-9, 2005. Shinagawa Prince Hotel), Minato-ku, Tokyo, Japan","subitem_description_type":"Other"}]},"item_4_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Satellite observation of precipitation is of high priority for understanding of atmospheric processes and of the global water cycle, for monitoring of climate trend and for meteorology. EGPM focuses its observation on precipitation at high latitude with optimised performance for quantifying light liquid and solid precipitations. This places high sensitivity requirements on high frequency channels, i.e. 54 and 118 GHz sounding channels, and 89 and 150 GHz window channels. Specific technology risk retirement activities have been started on critical components such as 54/118 GHz dual-frequency horn and 89 GHz direct-detection receiver. Those mm-wave components are also the key building blocks for the MW imager/sounder to be flown on board the next generation of low Earth orbit meteorological satellites (post-EPS mission), which shall replace the MetOp series. The preparation for the post-EPS mission, to be flown in 2018, has started in cooperation with EUMETSAT, and a number of alternative radiometer concepts have been studied by ESA, starting from a compact atmospheric sounder up to a combined imager/sounder. A brief presentation of those studied radiometer concepts will be given. Observation of precipitation for meteorological applications generally requires high temporal resolution in the order of 15 min. or shorter. The user consultation for the Meteosat Third Generation (MTG), to be flown starting in 2015, identified precipitation as high priority product. For such nowcasting and very short-range forecasting applications, only geostationary (GEO) satellites can provide observation with high temporal resolution. Thus, a geostationary microwave imager/sounder concept was studied at the request of EUMETSAT. Two competing concepts were proposed: a reflector-based, scanning single aperture radiometer covering a frequency range from 118 to 380 GHz; and a rotating synthetic aperture radiometer covering 54 to 380 GHz. The single aperture concept requires a large reflector of 3 to 4 m size diameter for achieving an acceptable spatial resolution at 36000 km altitude, the upper size limit being constrained by the launcher fairing diameter. The synthetic aperture concept on the other hand could accommodate an equivalent aperture diameter of 8 m, achieving a good spatial resolution even at 54 GHz at the cost of more complex design with large number of receivers and correlators. The main drawback of observation over high latitude region (e.g. northern European countries) from GEO is the high incidence-angle, which degrades the effective spatial resolution and increases the atmospheric opacity, especially at mm- and sub-mm-wave frequencies. For avoiding those drawbacks, a concept of elliptical medium Earth orbit (EMEO) observatory was also studied. A highly inclined EMEO with apogee at 27000 km (8 hours Molniya) was found optimum for covering Europe, North America and China, providing 6 hours daily coverage per region. Due to a lower orbit altitude in comparison to GEO, the aperture size could be reduced for a same spatial resolution, or alternatively the same aperture size may be used for an improved spatial resolution.","subitem_description_type":"Other"}]},"item_4_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_4_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_4_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AD1610014008","subitem_description_type":"Other"}]},"item_4_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構宇宙利用推進本部地球観測利用推進センター(JAXA)(EORC)"}]},"item_4_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Earth Observation Research and Application Center, Office of Space Applications, Japan Aerospace Exploration Agency (JAXA)(EORC)"}]},"item_4_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"European Space Research and Technology Center, European Space Agency (ESA)(ESTEC)"},{"subitem_text_language":"en","subitem_text_value":"European Space Research and Technology Center, European Space Agency (ESA)(ESTEC)"},{"subitem_text_language":"en","subitem_text_value":"European Space Research and Technology Center, European Space Agency (ESA)(ESTEC)"},{"subitem_text_language":"en","subitem_text_value":"European Space Research and Technology Center, European Space Agency (ESA)(ESTEC)"},{"subitem_text_language":"en","subitem_text_value":"European Space Research and Technology Center, European Space Agency (ESA)(ESTEC)"},{"subitem_text_language":"en","subitem_text_value":"European Space Research and Technology Center, European Space Agency (ESA)(ESTEC)"},{"subitem_text_language":"en","subitem_text_value":"European Space Research and Technology Center, European Space Agency (ESA)(ESTEC)"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Lin, Chung-Chi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Klein, U.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Rommen, B.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Aguirre, M.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ingmann, P.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Meynart, R.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ginati, A.","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"ESA Activities on Satellite Observation of Precipitation","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ESA Activities on Satellite Observation of Precipitation","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["1853","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-01-26"},"publish_date":"2017-01-26","publish_status":"0","recid":"21026","relation_version_is_last":true,"title":["ESA Activities on Satellite Observation of Precipitation"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T03:41:24.069004+00:00"}