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10.1029/2020GL089931 http://scihub22266oqcxt.onion/10.1029/2020GL089931 32834188!7435531!32834188     free     free     free Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Geophys+Res+Lett 2020 ; 47 (16): e2020GL089931 Nephropedia Template TP {{tp|p=32834188|t=2020. City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic |pdf=|usr=}}{{32834188}} gab.com Text City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic JO: Geophys Res Lett http://www.kidney.de/pget.php?&tw=1&pmid=32834188 #FOAvip Throughout the recent COVID-19 pandemic, real-time measurements about shifting use of roads, hospitals, grocery stores, and other public infrastructure became vital for government decision makers. Mobile phone locations are increasingly assimilated for this purpose, but an alternative, unexplored, natively anonymous, absolute method would be to use geophysical sensing to directly measure public infrastructure usage. In this paper, we demonstrate how fiber-optic distributed acoustic sensing (DAS) connected to a telecommunication cable beneath Palo Alto, CA, successfully monitored traffic over a 2-month period, including major reductions associated with COVID-19 response. Continuous DAS recordings of over 450,000 individual vehicles were analyzed using an automatic template-matching detection algorithm based on roadbed strain. In one commuter sector, we found a 50% decrease in vehicles immediately following the order, but near Stanford Hospital, the traffic persisted. The DAS measurements correlate with mobile phone locations and urban seismic noise levels, suggesting geophysics would complement future digital city sensing systems. Twit Text FOAVip City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic ????Geophys Res Lett http://www.kidney.de/pget.php?&tw=1&pmid=32834188 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=32834188 #FOAvip English Wikipedia <ref>{{Cite pmid|32834188}}</ref> City-Scale Dark Fiber DAS Measurements of Infrastructure Use During the COVID-19 Pandemic #MMPMID32834188 Lindsey NJ; Yuan S; Lellouch A; Gualtieri L; Lecocq T; Biondi B Geophys Res Lett 2020[Aug]; 47 (16): e2020GL089931 PMID32834188show ga Throughout the recent COVID-19 pandemic, real-time measurements about shifting use of roads, hospitals, grocery stores, and other public infrastructure became vital for government decision makers. Mobile phone locations are increasingly assimilated for this purpose, but an alternative, unexplored, natively anonymous, absolute method would be to use geophysical sensing to directly measure public infrastructure usage. In this paper, we demonstrate how fiber-optic distributed acoustic sensing (DAS) connected to a telecommunication cable beneath Palo Alto, CA, successfully monitored traffic over a 2-month period, including major reductions associated with COVID-19 response. Continuous DAS recordings of over 450,000 individual vehicles were analyzed using an automatic template-matching detection algorithm based on roadbed strain. In one commuter sector, we found a 50% decrease in vehicles immediately following the order, but near Stanford Hospital, the traffic persisted. The DAS measurements correlate with mobile phone locations and urban seismic noise levels, suggesting geophysics would complement future digital city sensing systems. äCity-Scale Dark Fiber DAS Measurements of Infrastructure Use During th(epmc).pdf DeepDyve Pubget Overpricing