{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/114351"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/114351","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Investigation of the depth and diameter of simple craters in the lunar mare","abstract":"Using altimetry data from the Lunar Orbiter Laser Altimeter (LOLA), the depths and diameters of 1429 simple craters in six different lunar maria units were measured, The analysis utilized a Graphical User Interface that was developed to access the LOLA data base and measure crater depth and diameter.The craters were compared to a published trend of depth/diameter relationships for fresh craters by Pike. By and large, the measured craters were shallower than the fresh crater trend. The pattern of shallowing did not correlate with the age of maria units, indicating a complex pattern of basin degradation.","abstract_html":"Using altimetry data from the Lunar Orbiter Laser Altimeter (LOLA), the depths and diameters of 1429 simple craters in six different lunar maria units were measured, The analysis utilized a Graphical User Interface that was developed to access the LOLA data base and measure crater depth and diameter.The craters were compared to a published trend of depth/diameter relationships for fresh craters by Pike. By and large, the measured craters were shallower than the fresh crater trend. The pattern of shallowing did not correlate with the age of maria units, indicating a complex pattern of basin degradation.","abstract_has_math":false,"creators":["Clark, Madeline E"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. 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