ファイル:Antarctic Air Visits Paranal.jpg
元のファイル (16,000 × 6,661 ピクセル、ファイルサイズ: 22.75メガバイト、MIME タイプ: image/jpeg)
ウィキメディア・コモンズのファイルページにある説明を、以下に表示します。
|
概要
解説Antarctic Air Visits Paranal.jpg |
English: This beautiful panorama of ESO's Paranal Observatory was taken on 5 July 2012, and marks one of the driest days ever recorded at the Very Large Telescope complex. Paranal sits like an island in the middle of the frame, with massive cloud banks floating below, over the distant Pacific Ocean.
The extremely low humidity at Paranal during this period was recorded by a water vapour radiometer known as LHATPRO, which monitors the atmosphere to support the observations carried out at the observatory [1]. Meteorologists from two Chilean universities identified the cause for these unusually dry conditions: high-altitude Antarctic air moving far to the north, and descending over Paranal. This cold front lingered around Paranal for over 12 hours, causing a record-low level of humidity in the air above the observatory [2]. Florian Kerber (ESO) and colleagues analysed this unusual weather, publishing the results in a paper in the Monthly Notices of the Royal Astronomical Society on 29 January 2014, available here. So, a dry desert… what is so special about that? Well, dryness of this magnitude is normally experienced at much higher altitudes, for example at the ALMA Observatory on the Chajnantor Plateau, which is located at 5000 metres above sea level — at 2635 metres, the altitude of Paranal is around half of this. Given that infrared observations can be best taken when there is little water vapour in the air, this could mean that routine monitoring using the LHATPRO radiometer will give astronomers the opportunity to exploit future dry spells at Paranal, to obtain great infrared observations of the Universe around us. The photo was taken by ESO photo ambassador Gabriel Brammer, who coincidentally experienced the sunset that immediately preceded this dry spell, and found it to be extraordinarily clear and beautiful. Gabriel works as an astronomer at the ESO La Silla-Paranal Observatory. When not supporting the operations of the observatory, he studies the formation and evolution of distant galaxies using the most sophisticated telescopes and instrumentation in the world, including the ESO Very Large Telescope and the Hubble Space Telescope. Notes [1] The Low Humidity and Temperature Profiling radiometer (LHATPRO), manufactured by Radiometer Physics GmbH in Germany, uses strong spectral lines from certain elements to measure the water content of the atmosphere. [2] The humidity is measured in the form of precipitable water vapour — a measure of atmospheric water content. It is the amount of water in a column of the atmosphere if it were all to fall as rain. In this case only 0.1 mm of precipitable water vapour was measured — much less than the usual (but already low) figure of 2 mm at Paranal. |
日付 | |
原典 | http://www.eso.org/public/images/potw1405a/ |
作者 |
ESO/G. Brammer Acknowledgement: F. Kerber (ESO) |
ライセンス
This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
このファイルはクリエイティブ・コモンズ 表示 4.0 国際ライセンスのもとに利用を許諾されています。
|
このファイルに描写されている項目
題材
3 2 2014
image/jpeg
ff3381ec2b13ec112ce54ea3b6470c71da85ee0e
3,193,530 バイト
1,665 ピクセル
4,000 ピクセル
ファイルの履歴
過去の版のファイルを表示するには、その版の日時をクリックしてください。
日付と時刻 | サムネイル | 寸法 | 利用者 | コメント | |
---|---|---|---|---|---|
現在の版 | 2024年2月14日 (水) 19:52 | 16,000 × 6,661 (22.75メガバイト) | C messier | full size | |
2014年2月4日 (火) 01:13 | 4,000 × 1,665 (3.05メガバイト) | Jmencisom | User created page with UploadWizard |
ファイルの使用状況
このファイルを使用しているページはありません。
グローバルなファイル使用状況
以下に挙げる他のウィキがこの画像を使っています:
- ar.wikipedia.org での使用状況
- bn.wikipedia.org での使用状況
- en.wikipedia.org での使用状況
- ha.wikipedia.org での使用状況
メタデータ
このファイルには、追加情報があります (おそらく、作成やデジタル化する際に使用したデジタルカメラやスキャナーが追加したものです)。
このファイルが元の状態から変更されている場合、修正されたファイルを完全に反映していない項目がある場合があります。
帰属/提供者 | ESO/G. BrammerAcknowledgement: F. Kerber (ESO) |
---|---|
ソース | European Southern Observatory |
短いタイトル |
|
画像の説明 |
|
使用条件 |
|
原画像データの生成日時 | 2014年2月3日 (月) 10:00 |
JPEGファイルのコメント | This beautiful panorama of ESO's Paranal Observatory was taken on 5 July 2012, and marks one of the driest days ever recorded at the Very Large Telescope complex. Paranal sits like an island in the middle of the frame, with massive cloud banks floating below, over the distant Pacific Ocean. The extremely low humidity at Paranal during this period was recorded by a water vapour radiometer known as LHATPRO, which monitors the atmosphere to support the observations carried out at the observatory [1]. Meteorologists from two Chilean universities identified the cause for these unusually dry conditions: high-altitude Antarctic air moving far to the north, and descending over Paranal. This cold front lingered around Paranal for over 12 hours, causing a record-low level of humidity in the air above the observatory [2]. Florian Kerber (ESO) and colleagues analysed this unusual weather, publishing the results in a paper in the Monthly Notices of the Royal Astronomical Society on 29 January 2014, available here. So, a dry desert… what is so special about that? Well, dryness of this magnitude is normally experienced at much higher altitudes, for example at the ALMA Observatory on the Chajnantor Plateau, which is located at 5000 metres above sea level — at 2635 metres, the altitude of Paranal is around half of this. Given that infrared observations can be best taken when there is little water vapour in the air, this could mean that routine monitoring using the LHATPRO radiometer will give astronomers the opportunity to exploit future dry spells at Paranal, to obtain great infrared observations of the Universe around us. The photo was taken by ESO photo ambassador Gabriel Brammer, who coincidentally experienced the sunset that immediately preceded this dry spell, and found it to be extraordinarily clear and beautiful. Gabriel works as an astronomer at the ESO La Silla-Paranal Observatory. When not supporting the operations of the observatory, he studies the formation and evolution of distant galaxies using the most sophisticated telescopes and instrumentation in the world, including the ESO Very Large Telescope and the Hubble Space Telescope. Notes [1] The Low Humidity and Temperature Profiling radiometer (LHATPRO), manufactured by Radiometer Physics GmbH in Germany, uses strong spectral lines from certain elements to measure the water content of the atmosphere. [2] The humidity is measured in the form of precipitable water vapour — a measure of atmospheric water content. It is the amount of water in a column of the atmosphere if it were all to fall as rain. In this case only 0.1 mm of precipitable water vapour was measured — much less than the usual (but already low) figure of 2 mm at Paranal. |
使用ソフトウェア名 | Adobe Photoshop CS6 (Windows) |
ファイル変更日時 | 2017年7月13日 (木) 12:01 |
Panorama top crop | 0 |
Panorama left crop | 0 |
Panorama full height | 8,000 |
スティッチングソフトウェア | PTGui (www.ptgui.com) |
Panorama full width | 16,000 |
Panorama cropped height | 8,000 |
Panorama cropped width | 16,000 |
パノラマビューワーを使用するか | はい |
投影方式 | 正距円筒図法 |
メタデータの最終更新日 | 2017年7月13日 (木) 14:01 |
デジタルデータの作成日時 | 2012年7月4日 (水) 19:12 |
元文書の一意なID | ADC540A3A2BA670BED9BAD300B2A8599 |
著作権情報 | 著作権情報未設定 |
キーワード | Cerro Paranal |
連絡先情報 |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIMバージョン | 4 |