{"id":106,"date":"2012-02-25T21:36:17","date_gmt":"2012-02-26T02:36:17","guid":{"rendered":"https:\/\/www.cst.temple.edu\/~nyq\/?page_id=106"},"modified":"2023-04-24T11:10:51","modified_gmt":"2023-04-24T15:10:51","slug":"mapping-unexploded-ordnance-uxo","status":"publish","type":"page","link":"https:\/\/sites.temple.edu\/geophysics\/research\/mapping-unexploded-ordnance-uxo\/","title":{"rendered":"GPR, and Dye Tracer, at the Susquehanna\/Shale Hills CZO"},"content":{"rendered":"<p><a href=\"https:\/\/sites.temple.edu\/geophysics\/files\/2012\/02\/CollectingGPR.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-476\" src=\"https:\/\/sites.temple.edu\/geophysics\/files\/2012\/02\/CollectingGPR.png\" alt=\"CollectingGPR\" width=\"630\" height=\"443\" srcset=\"https:\/\/sites.temple.edu\/geophysics\/files\/2012\/02\/CollectingGPR.png 630w, https:\/\/sites.temple.edu\/geophysics\/files\/2012\/02\/CollectingGPR-300x210.png 300w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\" \/><\/a>The CZO is an NSF-funded field research site where researchers from a broad spectrum of disciplines are studying the biological, geochemical, pedologic, and hydrologic processes converting\u00a0the underlying shale bedrock into soil and regolith.<\/p>\n<p>The infiltration of precipitation and the movement of water down hillsides is of fundamental importance to weathering and hydrologic processes. \u00a0 Near surface geophysics is an important tool for investigating the preferential flow paths in the soil and fractures in the bedrock that create heterogeneous flow patterns.<\/p>\n<p>In\u00a0this project we have been experimenting with time-lapse ground-penetrating radar (GPR) to image shallow subsurface flow using a wood frame to ensure reproducible data collection before and after a water release. \u00a0For ground truth we inject a solution of brilliant blue dye, then excavate to compare with the GPR data and identify preferential pathways.\u00a0<a href=\"https:\/\/sites.temple.edu\/geophysics\/files\/2014\/10\/DyeandGPR.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-478\" src=\"https:\/\/sites.temple.edu\/geophysics\/files\/2014\/10\/DyeandGPR.png\" alt=\"DyeandGPR\" width=\"600\" height=\"455\" srcset=\"https:\/\/sites.temple.edu\/geophysics\/files\/2014\/10\/DyeandGPR.png 600w, https:\/\/sites.temple.edu\/geophysics\/files\/2014\/10\/DyeandGPR-300x227.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>Guo, Li, Henry Lin, Bihang Fan, Jonathan Nyquist, Laura Toran, and Gregory J. Mount. 2019. \u201cPreferential Flow through Shallow Fractured Bedrock and a 3D Fill-and-Spill Model of Hillslope Subsurface Hydrology.\u201d <em>Journal of Hydrology<\/em> 576 (September): 430\u201342.<\/p>\n<p>Nyquist, J. E., L. Toran, L. Pitman, L. Guo, and H. Lin. 2018. Testing the Fill-and-Spill Model of Subsurface Lateral Flow Using Ground-Penetrating Radar and Dye Tracing. Vadose Zone J. 17. doi:10.2136\/vzj2017.07.0142<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The CZO is an NSF-funded field research site where researchers from a broad spectrum of disciplines are studying the biological, geochemical, pedologic, and hydrologic processes converting\u00a0the underlying shale bedrock into soil and regolith. The infiltration of precipitation and the movement &hellip; <a href=\"https:\/\/sites.temple.edu\/geophysics\/research\/mapping-unexploded-ordnance-uxo\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":606,"featured_media":0,"parent":15,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-106","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sites.temple.edu\/geophysics\/wp-json\/wp\/v2\/pages\/106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.temple.edu\/geophysics\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.temple.edu\/geophysics\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/geophysics\/wp-json\/wp\/v2\/users\/606"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/geophysics\/wp-json\/wp\/v2\/comments?post=106"}],"version-history":[{"count":3,"href":"https:\/\/sites.temple.edu\/geophysics\/wp-json\/wp\/v2\/pages\/106\/revisions"}],"predecessor-version":[{"id":1025,"href":"https:\/\/sites.temple.edu\/geophysics\/wp-json\/wp\/v2\/pages\/106\/revisions\/1025"}],"up":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/geophysics\/wp-json\/wp\/v2\/pages\/15"}],"wp:attachment":[{"href":"https:\/\/sites.temple.edu\/geophysics\/wp-json\/wp\/v2\/media?parent=106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}