Wikipedia

File:ISS 17 - Noctilucent clouds over Asia.jpg

Original file ‎(3,072 × 2,040 pixels, file size: 261 KB, MIME type: image/jpeg)

Summary

Description
English: Noctilucent clouds photographed by the crew of the ISS.
  • Polar Mesospheric Clouds (also known as noctilucent clouds) are transient, upper atmospheric phenomena observed usually in the summer months at high latitudes (greater than 50 degrees) of both the Northern and Southern Hemispheres. They are bright and cloudlike in appearance while in deep twilight. They are illuminated by sunlight when the lower layers of the atmosphere are in the darkness of the Earth's shadow. This image was acquired at an altitude of just over 320 km (200 miles) in the pre-dawn hours of 22 July 2008 as the International Space Station was passing over western Mongolia in central Asia. The dark horizon of the Earth appears below with some layers of the lower atmosphere already illuminated. The higher, bluish-colored clouds look much like wispy cirrus clouds which can be found in the troposphere as high as 18 km (60,000 feet).
  • However noctilucent clouds, as seen here, are observed in the mesosphere at altitudes of 75 to 85 km (250,000 to 280,000 feet). Astronaut observations of Polar Mesospheric Clouds (PMC) over northern Asia in June and July are not uncommon. The Expedition 17 crew of the International Space Station acquired this image, and more, in support of research for the International Polar Year. Some researchers link increased observations of PMC to changes in global climate; PMC have been the subject of extensive observation and research from space by the Swedish satellite Odin launched in 2001 and more recently by NASA's Aeronomy of Ice in the Mesosphere (AIM) satellite system beginning in 2007.
Date
Source http://spaceflight.nasa.gov/gallery/images/station/crew-17/html/iss017e011632.html direct link
Author NASA
This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS017-E-011632.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.
Other languages:

العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

Licensing

Public domain
This file is in the public domain in the United States because it was created by the Image Science & Analysis Laboratory, of the NASA Johnson Space Center. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA media use guidelines or Conditions of Use of Astronaut Photographs). Photo source: ISS017-E-11632.

العربيَّة | Deutsch | English | español | français | italiano | kurdî | македонски | മലയാളം | português | sicilianu | +/−

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

inception

22 July 2008

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current16:50, 22 November 2012Thumbnail for version as of 16:50, 22 November 20123,072 × 2,040 (261 KB)Ras67losslessly cropped with Jpegcrop
06:49, 27 August 2008Thumbnail for version as of 06:49, 27 August 20083,072 × 2,098 (375 KB)Sdsds{{Information |Description={{en|1=Noctilucent clouds photographed by the crew of the ISS.}} |Source=http://spaceflight.nasa.gov/gallery/images/station/crew-17/hires/iss017e011632.jpg |Author=NASA |Date=2008-08-25 |Permission= |other_versions= }} <!--{{Im
No pages on the English Wikipedia use this file (pages on other projects are not listed).

Global file usage

The following other wikis use this file:

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://en.wikipedia.org/wiki/File:ISS_17_-_Noctilucent_clouds_over_Asia.jpg"