naJack Lee, American Geophysical Union
Kudengenyeka kwenyika kwakatevedzana uye kudengenyeka kwakazunungusa nzvimbo yeRidgecrest kuSouthern California muna 2019. Distributed acoustic sensing (DAS) uchishandisa fiber-optic cables inogonesa high-resolution subsurface imaging, iyo inogona kutsanangura iyo inocherechedzwa kuwedzera kwekudengenyeka kwekudengenyeka kwenyika.
Kuti ivhu rinofamba zvakadii panguva yekudengenyeka kunoenderana nemamiriro edombo nevhu riri pasi pePasi. Zvidzidzo zvekuenzanisira zvinoratidza kuti kuzununguka kwevhu kunokwidziridzwa mumabheseni emvura, panogara nzvimbo dzemumaguta dzinowanzowanikwa. Nekudaro, kufungidzira padhuze-yepamusoro chimiro chakatenderedza nzvimbo dzemadhorobha pakugadziriswa kwepamusoro kwave kunetsa.
Yang et al. vakagadzira nzira itsva yekushandisa distributed acoustic sensing (DAS) kugadzira mufananidzo wepamusoro wepamusoro-soro chimiro. DAS inzira inobuda inogona kushandura iripofiber-optic cableskuita seismic arrays. Nekutarisa shanduko mukuti mapurusi anopararira sei paanofamba netambo, masayendisiti anogona kuverenga diki shanduko yekuchinja kwezvinhu zvakatenderedza fiber. Pamusoro pekurekodha kudengenyeka kwepasi, DAS yakaratidza kubatsira mumhando dzakasiyana dzekushandisa, sekudoma bhendi rinonyanya kufora pa2020 Rose Parade uye kufumura shanduko dzinoshamisa mumotokari dzemotokari panguva yeCOVID-19 kugara-pamba-mirairo.
Vatsvakurudzi vekare vakadzokorora makiromita gumi e fiber kuti vaone kudengenyeka shure kwekudengenyeka kwepasi kwe 7.1 Ridgecrest muCalifornia muna Chikunguru 2019. DAS yavo yeDAS yakaona kuzununguka kudiki kwakapetwa katanhatu sezvakangoita masensor mukati memwedzi mitatu.
Muchidzidzo chitsva, vaongorori vakaongorora inoenderera seismic data inogadzirwa netraffic. Iyo data yeDAS yakabvumira timu kuti igadzire padhuze-pamusoro-soro shear velocity modhi ine subkilometer resolution maodha maviri ehukuru akakwira kupfuura akajairwa mamodheru. Uyu modhi wakaratidza kuti pakureba kwefayibha, nzvimbo uko kudengenyeka kwakatevera kwaibudisa kufamba kwakawanda kwepasi kwaiwanzoenderana nekwaive kwakadzikira.
Yakadaro yakanaka-chiyero seismic hazard mepu inogona kuvandudza madhorobha seismic njodzi manejimendi, kunyanya mumaguta umo fiber-optic network ingangove iripo, vanyori vanoratidza.
Nguva yekutumira: Jun-03-2019