Igcine ukubuyekezwa ngoMeyi 14, 2021 ngu Roger Kaufman
NASA "Umhlaba Woshintsho": Mount St. Helens - 30 Years Later / 30 Years Later
Intabamlilo ngeso lesathelayithi -
Eminyakeni engu-30 impela edlule, iMount St. Helens yaqhuma ngemva kokubonisa izimpawu zokuqala zokuphila ngokuzamazama komhlaba okubuthakathaka ngaphambi nje kwalokho.
I-magma ekhuphukayo yayigubungele intaba ohlangothini lwayo olusenyakatho.
Ngo-May 18, 1980, ukuzamazama komhlaba okuyisilinganiso esingu-5,1 kwagadla intaba, kwabangela ukubhidlika okukhulu kwenhlabathi.
Ukucindezela kwe-magma ekhuphukayo kwancipha kungazelelwe, futhi amagesi ancibilikisiwe nomhwamuko wabaleka ekuqhumeni okukhulu.
Ukukhuluma nje, lokhu kusebenza njengebhodlela le-champagne olinyakazisa ngamandla ngaphambi kokulivula.
Okunye umlando. Ngokugqashuka kwangoMeyi 18, 1980, i umlando kodwa akukapheli.
Intabamlilo isaqhuma. Lokho nakho kuyakhombisa Ividiyo ye-USGS, u-Dave Schumaker ayijwayelanisa ne-dynamics ye-lava dome ku-crater.
Le vidiyo emfushane ikhombisa imiphumela eyinhlekelele yokuqhuma... kanye nokuvuselelwa okumangalisayo kwemvelo ezungezile - ngamehlo Amasathelayithi e-Landsat.
Amasathelayithi e-Landsat.
Ividiyo - Intaba-mlilo ngeso lesathelayithi
Ividiyo nencazelo nge: http://facebook.com/WissensMagazin / http://facebook.com/ScienceReason
Kuyini I-Landsat-Amasathelayithi
I-Wikipedia inikeza incazelo elandelayo yamagama
Die I-Landsat-Amasathelayithi awuchungechunge lwezindaba zomphakathi amasathelayithi okubuka umhlaba the NASA zuri inzwa ekude indawo yezwekazi lomhlaba kanye nezifunda ezisogwini.
Zisetshenziswa kakhulu ukwenza imephu yemithombo yemvelo kanye nokurekhoda izinguquko ezibangelwa izinqubo zemvelo nemisebenzi yabantu.
Kusukela ngo-1972, amasathelayithi ayisishiyagalombili (okuhlanganisa nesiqalo esingamanga) salolu chungechunge seyethuliwe, ahlukaniswe ngochungechunge olune.
Inkundla yenzwa yerimothi isebenzisa izinzwa ezahlukahlukene ukuze irekhode lokho okubizwa ngedatha yenzwa eyirimothi.
Uhlelo lwe-Landsat luhlehlela emuva kumishini yokuhlalisa inyanga ye-Apollo ngeminyaka yawo-1960, lapho izithombe zobuso boMhlaba zathathwa okokuqala emkhathini.
Ngo-1965, owayengumqondisi we-United States Geological Survey (USGS), uWilliam Pecora, wenza isiphakamiso sohlelo lwesathelayithi lokuzwa kude. ukuphila ukuthola idatha mayelana nemithombo yemvelo yomhlaba.
Ngawo lowo nyaka, i-NASA yaqala ukuzwa okukude okukude komhlaba isebenzisa izinsimbi ezibekwe endizeni.
Ngo-1970, i-NASA ekugcineni yathola imvume yokwakha isathelayithi. I-Landsat 1 yethulwa eminyakeni emibili kamuva futhi ukuzwa okukude kungase kuqale.
