{ "title": "At the Head of a Kasei Valles Cataract", "authors": "HiRISE", "metadata": { "thumbnailURL": "https://static.uahirise.org/anews/2021-02-05/ESP_039274_2055.jpg", "excerpt": "This image covers a location that may have acted as a cataract in the Kasei valley region." }, "version": "1.5", "identifier": "ESP_039274_2055", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: 5 February 2021" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "At the Head of a Kasei Valles Cataract" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "At high resolution, we can look for boulders. Less than 1 km across. (NASA/JPL/UArizona)", "URL": "https://static.uahirise.org/anews/2021-02-05/ESP_039274_2055.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "
On Earth, cataracts represent regions where a river's gradient increases enough to create so much turbulence, that air gets incorporated into the water body forming a bubbly current sometimes called “whitewater”. This image covers a location that may have acted as a cataract in the Kasei valley region.
This observation samples the bedrock lithologies and gives us a measure of the post-flood erosion and modification history for the floor of Kasei Valles. At high resolution, we can also look for boulders.
ID: ESP_039274_2055
date: 12 December 2014
altitude: 284 km (177 mi)
NASA/JPL/UArizona