{ "title": "A Streamlined Island in Athabasca Valles", "authors": "HiRISE", "metadata": { "thumbnailURL": "https://static.uahirise.org/anews/2020-10-13/ESP_028519_1895.jpg", "excerpt": "This image completes a mosaic of images covering a collection of streamlined islands in Athabasca Valles." }, "version": "1.5", "identifier": "ESP_028519_1895", "language": "en", "layout": { "columns": 10, "width": 1024, "margin": 85, "gutter": 20 }, "documentStyle": { "backgroundColor": "#faf7f2" }, "components": [ { "role": "heading1", "layout": "heading1Layout", "text": "HiPOD: 13 October 2020" }, { "role": "divider", "layout": "bigDividerLayout", "stroke": { "width": 3, "color": "#8c2028" } }, { "role": "title", "layout": "halfMarginBelowLayout", "text": "A Streamlined Island in Athabasca Valles" }, { "role": "photo", "layout": "fullBleedLayout", "caption": "Streamlined islands form by a rapid erosive flow (catastrophic flooding) around an obstacle such as a resistant rock outcrop or surface armored by impact ejecta. Less than 5 km across. (NASA/JPL/UArizona)", "URL": "https://static.uahirise.org/anews/2020-10-13/ESP_028519_1895.jpg" }, { "role": "body", "format": "html", "layout": "hipodMarginLayout", "text": "
This image completes a mosaic of images covering a collection of streamlined islands in Athabasca Valles. Streamlined islands form by a rapid erosive flow (catastrophic flooding) around an obstacle such as a resistant rock outcrop or surface armored by impact ejecta.
Examination of the margins of the islands can show evidence of terrace formation. Each terrace may indicate a different flow event or flood level, and can be used to reconstruct the history of flood events.
ID: ESP_028519_1895
date: 26 August 2012
altitude: 277 km
NASA/JPL/UArizona