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HiWish is a program created by NASA so that anyone can suggest a place for the HiRISE camera on the Mars Reconnaissance Orbiter to photograph. It was started in January 2010. In the first few months of the program 3000 people signed up to use HiRISE.〔Interview with Alfred McEwen on Planetary Radio, 3/15/2010〕〔http://www.planetary.org/multimedia/planetary-radio/show/2010/384.html〕 The first images were released in April 2010. Over 5000 suggestions were made by the public; suggestions were made for targets in each of the 30 quadrangles of Mars. Selected images released were used for three talks at the 16th Annual International Mars Society Convention. Below are some of the over 1100 images that have been released from the HiWish program as of March 2015. ==Glacial features== Some landscapes look just like glaciers moving out of mountain valleys on Earth. Some have a hallowed out appearance, looking like a glacier after almost all the ice has disappeared. What is left are the moraines—the dirt and debris carried by the glacier. The center is hollowed out because the ice is mostly gone.〔Milliken, R., J. Mustard, D. Goldsby. 2003. Viscous flow features on the surface of Mars: Observations from high-resolution Mars Orbiter Camera (MOC) images. J. Geophys. Res. 108. doi:10.1029/2002JE002005.〕 These supposed alpine glaciers have been called glacier-like forms (GLF) or glacier-like flows (GLF).〔Arfstrom, J and W. Hartmann. 2005. Martian flow features, moraine-like ridges, and gullies: Terrestrial analogs and interrelationships. Icarus 174, 321-335.〕 Glacier-like forms are a later and maybe more accurate term because we cannot be sure the structure is currently moving.〔Hubbard B., R. Milliken, J. Kargel , A. Limaye, C. Souness . 2011. Geomorphological characterisation and interpretation of a mid-latitude glacier-like form: Hellas Planitia, Mars Icarus 211, 330–346〕 (詳細は Image:Wide view of glacier showing image field.JPG|Possible glacier flowing down a valley and spreading out on a plain. Rectangle shows a portion that is enlarged in the next image. Image:Glacier close up with hirise.JPG|Enlargement of the area in the rectangle in the previous image. This area would be called a moraine in an alpine glacier on Earth. Image:Hollows as seen by hirise under hiwish program.jpg|Well-developed hollows of concentric crater fill, as seen by HiRISE under the HiWish program. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HiWish program」の詳細全文を読む スポンサード リンク
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