Te Aroturuki me te Matapae i te Āniwaniwa mā te Whakamahi i te Matawhenua
Ko ngā tsunami tētahi o ngā āhuatanga taiao tino whakamate nā te mea ka tere te taenga mai, ka tawhiti te haere, ā, he maha ngā wā ka whai i ngā rū whenua nui e kino ana ki ngā hanganga. I roto i te nuinga o ngā rohe takutai moana—ina koa ko ērā e tata ana ki ngā rohe totohu—ko te wā i waenga i te pūtake tsunami me te pānga o te ngaru he torutoru meneti ki te tekau meneti noa iho. Nō reira, ko te aroturuki tere me te matapae tika he mea nui ki te whakaora oranga. He mahi nui tā te matawhenua i roto i tēnei tukanga katoa: mai i te kimi i te rū whenua e whakaoho ana, te ine i te rerekētanga o te papa moana, te aroturuki i ngā huringa o te taumata moana, me te whakahaere i ngā tauira tau hei matapae i te teitei o ngā ngaru me ngā wā taenga mai. Ka matapakihia e tēnei tuhinga te whakamahinga o te matawhenua mō te aroturuki me te matapae tsunami, me ngā wero me ngā huarahi mō te whanaketanga.
Te Tai Āniwaniwa me tōna pūnaha whakaputa
Ko te nuinga o ngā tsunami nunui ka puta mai i ngā rū whenua tectonic i runga i te papa moana, inā koa ngā rū whenua megathrust i roto i ngā rohe totohu, ka puta ai te pikinga ohorere, te hekenga rānei o te papa moana. Ka nekehia e tēnei huringa poutū te pou wai i runga i te tauine nui, ka puta ai ngā ngaru roa, kaha-teitei. Haunga ngā rū whenua, ka taea hoki te whakaoho i ngā tsunami e ngā horo whenua i raro i te wai, ngā hinganga o ngā puia, ngā pahūtanga o ngā puia e nekehia ana te wai, me ngā pānga o ngā meteorite (he tino onge). Nā te maha o ngā tikanga whakaoho, kāore ngā pūnaha aroturuki tsunami hou e whakawhirinaki ki tētahi pūoko kotahi engari ki tētahi whatunga o ngā taputapu tautoko.
Te tūranga o te ru whenua: te kimi tere i ngā rū whenua whakaoho
Ko te taahiraa tuatahi i roto i te whakatūpato tsunami ko te kimi rū whenua. Ka tuhia e te whatunga o ngā mita ru whenua me te moana ngā ngaru ru whenua, ā, ka taea te aromatawai tere i te wāhi, te hohonu, me te kaha o te pokapū. Mō ngā take tsunami, ko ngā tawhā nui ehara i te kaha whānui anake (hei tauira, Mw), engari ko te pūtake me te nui o te nekehanga poutū o te papa moana. Ko ngā rū whenua he nui te kaha engari he paheke te nuinga ka puta he tsunami iti ake i ngā rū whenua e whakaputa ana i te pana.
Hei tāpiri atu ki tēnā, ka whakamahia e te matawhenua o ēnei rā ngā ariā pēnei i te kaha o te wā roa me te whakatau tata i te roa o te pakaru hei tautuhi i ngā rū whenua "tsunamigenic". Tērā ētahi wā o ngā "rū whenua tsunami", arā, he rū whenua kāore e tino pāngia e te whenua engari ka puta he tsunami nui nā te mea he roa te wā e tukuna ana te kaha, ā, ka puta tata ki te awaawa. Mā te tātari tere mā te whakamahi i ngā raraunga ru whenua wā roa ka āwhina i te whakaiti i te mōrearea o ngā tataunga hē.
Heoi, kāore e ranea te rangahau whenua anake. Kāore i te wā katoa ka puta he tsunami whakangaro i ngā rū whenua nui, ā, i te taha kē, ka taea e ngā pūtake ehara i te rū whenua te whakaputa i ngā tsunami ā-rohe morearea. Nō reira, me ine tika te āhua o te kiripaka me te moana.
Te Matawhenua (GNSS) me te whakarerekētanga o te kiripaka: te ine i te "rahi" o te nekehanga
Mā ngā tirohanga GNSS/GPS ka whakaratohia he mōhiohio wā-tūturu mō te nekehanga o te whenua. I ngā wā o ngā rū whenua nui, ka taea e ngā teihana GNSS o te takutai te tuhi i ngā nekehanga whenua tuturu tae atu ki te maha mita. He mea tino nui ēnei raraunga mō te whakatau tata i te paheke i runga i ngā papa hapa, me te huri i taua raraunga hei whakarerekētanga o te papa moana e puta ai ngā tsunami.
I roto i ētahi pūnaha whakatūpato wawe, ka honoa te GNSS wā-tūturu me ngā raraunga ru whenua hei whiwhi i ngā otinga pūtake rū whenua pumau ake, inā koa mō ngā rū whenua tino nui (Mw > 8) e whakakī ana i ngā tikanga ru whenua tere. Mā te GNSS, ka taea te whiwhi whakatau tata mō te tere ru whenua me ngā tauira whakarerekētanga i roto i ngā meneti, kātahi ka whakamahia hei whakauru tuatahi mō te whakatauira tsunami.
Ko tētahi atu whanaketanga ko te whakamahinga o te InSAR (Interferometric Synthetic Aperture Radar) mai i ngā amiorangi hei mahere taipitopito i te whakarerekētanga o te whenua i muri i te rū whenua. Ahakoa kāore i te wā tūturu tonu, he tino whai hua te InSAR mō te aromatawai tere i muri i te huihuinga, te whakapai ake i ngā tauira pūtake, me te whakapai ake i te kounga o ngā mahere mōrearea tsunami ā muri ake nei.
Ngā taputapu moana: ngā ine tai me ngā pūoko pēhanga o te papa moana
Me mātakitaki tika i ngā panonitanga o te taumata wai mō te whakaū i te tsunami. Ka tuhia e ngā ine tai i ngā whanga me ngā takutai moana ngā rerekētanga o te taumata wai e tohu ana i ngā ngaru tsunami. Ko tō rātou painga he ngāwari te tiki raraunga, ā, he whānui hoki tō rātou whatunga. Ko te ngoikoretanga ko te wāhi kei te takutai moana ngā ine tai, ka pāngia ngā ngaru e te āhua o te kokoru, ngā hanganga whanga, te haruru ā-rohe rānei. Hei tāpiri, mō ngā tsunami e tata ana ki te pūtake, ka tuhia pea e ngā ine tai ina tata te ngaru ki uta.
Nō reira, ka whakamahia hoki e ngā pūnaha hou ngā pūoko pēhanga o te papa moana i roto i ngā wai hohonu, pērā i te ariā Deep-ocean Assessment and Reporting of Tsunamis (DART). Ka ine ēnei pūoko i ngā huringa pēhanga i puta mai i te haerenga o ngā ngaru tsunami, ā, ka tukuna atu mā roto i ngā pōito ki ngā amiorangi. He mea nui ngā inenga o te moana hohonu nā te mea he iti te kaha o ngā ngaru tsunami i reira (he maha noa iho i te torutoru henimita ki te tekau henimita) engari ka taea te kite mā ngā taputapu tino tika. Ka āwhina ēnei raraunga ki te whakaū mēnā i puta he tsunami nui i te rū whenua, ā, ka whakapai ake i ngā matapae mō te teitei o ngā ngaru i te takutai.
Te whakatauira tau: mai i ngā raraunga pūtake ki te matapae i ngā wā taenga mai me te teitei o ngā ngaru
Ko te matapae i te tsunami he raruraru nui o te ahupūngao ngaru: me pēhea te horapa o ngā raruraru o te mata o te moana puta noa i te moana, me te taunekeneke ki te āhua o te papa o te moana (te ine kaukau) me ngā āhua o te takutai moana. Ka whakamahia e ngā tauira tau ngā whārite wai papaku, ngā rerekētanga rānei o aua whārite hei tatau i te horapa o te ngaru, te whakaata, te titahatanga, me te papatairite i a rātou e tomo ana ki te wai papaku.
I roto i ngā pūnaha whakatūpato mō te wā tōmua, e rua ngā huarahi whānui e whakamahia ana hei whakatauira:
1. Ngā horopaki kua tātaitia i mua (pātengi raraunga): Ka tātaitia ngā mano ki te miriona o ngā horopaki tsunami mō ngā momo pūtake rū whenua. Ina puta he rū whenua, ka tīpakohia e te pūnaha te horopaki tata rawa atu i runga i ngā tawhā tuatahi, ā, ka tukuna tonutia he wā taenga mai me te teitei o te ngaru.
2. Te hurihanga raraunga me te whakauru raraunga wā-tūturu: Ka whakamahia ngā raraunga pūoko rū whenua, GNSS, me te pūoko pēhanga moana hei whakatau tata ake i te pūtake, kātahi ka whakahaerehia ngā whakatauira, ka whakatikatikaina rānei. Ka taea e tēnei huarahi te whakapai ake i te tika, inā koa mō ngā huihuinga uaua, engari me whai tatau pakari me te whakaurunga raraunga.
Ko te kounga o te matapae e whakawhirinaki nui ana ki te ine kaukau me te āhua whenua taumira teitei, nā te mea ko te āhua o te papa moana me te pari takutai te mea nui hei whakatau i te wāhi e arotahi ai, e ngoikore ai rānei ngā ngaru. Ka taea e ngā kokoru whaiti te whakanui ake i ngā tsunami mā te haruru, ko ngā toka, ko ngā mania takutai whānui rānei ka taea te whakarerekē i ngā tauira o te rere ake.
Ngā wero matua: te wā, te koretake, me ngā pūtake kore-tekonika
E toru ngā wero nui o te aroturuki me te matapae i ngā tsunami.
Tuatahi, he iti noa te wā e tata ana ki te pūtake o te tsunami. I ētahi takutai e tata ana ki ngā rohe toremi, ka taea e te ngaru tuatahi te tae mai i roto i te 5–20 meneti. Me tino tere te mekameka kitenga-tātari-whakatūpato, ā, me mārama te marea me pēhea te urupare takitahi: ki te rongohia he rū nui, roa hoki, whakarērea tonutia me te kore e tatari mō te tangi o ngā haona.
Tuarua, te koretake o te pūtake. Ka taea e ngā rū whenua te pakaru i ngā rau kiromita me te paheke koretake. Ka taea e ngā hapa iti i te hohonutanga, i ngā whakatau tata rānei o te tikanga te pā nui ki ngā matapae teitei o te tsunami. Hei tāpiri, ka taea e ngā horo whenua i raro i te wai te whakanui ake i ngā tsunami ā-rohe engari he uaua ake te kite wawe. E whai ana te Geophysics ki te whakakotahi i ngā momo raraunga maha hei whakaiti i tēnei koretake.
Tuatoru, ko ngā herenga o ngā whatunga pūoko. He utu nui te tāuta i ngā pūoko o te moana, ā, me tiaki. He maha ngā wāhi e pāngia ana e te tsunami, kāore i te tino pai te kiato o ngā taputapu. Koinei te wāhi e tino hira ai te mahi tahi ā-rohe me te ao, tae atu ki te tiritiri raraunga whakawhiti-rohe me ngā paerewa whakawhitiwhiti kōrero whakatūpato.
Te Auahatanga me te Ao o te Ao: Te Hangarau Mōhiohio (AI), ngā taura whatu, me ngā whakatūpato ā-hapori
Ko ngā whanaketanga ā muri ake nei ko te tere haere o te whakaurunga raraunga me te mohio. Kei te tīmata te whakamahi i ngā tikanga ako mīhini mō te whakarōpūtanga tere o ngā rū whenua tsunami, te whakatau i ngā tawhā pūtake mai i ngā tohu uaua, me te whakatikatika i ngā tauira raraunga hītori. Heoi anō, me whakakotahi tonu te AI me te māramatanga ki te ahupūngao me te whakamana pakari, nā te mea he nui ngā hua o ngā matapae hē.
Ko tētahi atu auahatanga whakamere ko te whakamahinga o ngā taura whatu ruku moana hei pūoko ru me te whakarerekētanga o te āhua mā roto i ngā tikanga pēnei i te Distributed Acoustic Sensing (DAS). Mā te whakamahi i te hanganga whakawhitiwhiti kōrero whānui kua whānui kē, ka taea te aroturuki whānui ake me te wā-tūturu, inā koa i ngā wāhi he uaua ki te tāuta i ngā taputapu tuku iho.
Engari ehara i te mea ko te hangarau anake te otinga. Ko ngā pūnaha tino whai hua ko ērā e hono ana i te pūtaiao, te kaupapa here, me te whakarite mō te marea. Kei te noho tonu ngā mapi whakawātea, ngā whakangungu auau, ngā tohu huarahi whakawātea, me te mātauranga mō ngā tohu whakatūpato tsunami taiao (ngā rū whenua kaha, ngā ngaru e heke ohorere ana, ngā oro haruru).
Te Katinga
He mahi maha-mātauranga te aroturuki me te matapae i ngā tsunami mā te whakamahi i te matawhenua e whakakotahi ana i te ru whenua, te matawhenua, te moana, me te whakatauira tau. Ka kitea e ngā mita ru whenua ngā rū whenua whakaoho, ka ine te GNSS i te whakarerekētanga o te kiripaka, ka whakaū ngā ine tai me ngā pūoko pēhanga o te papa moana i ngā ngaru, ā, ka matapae ngā tauira tau i ngā wā taenga mai me ngā pānga pea ki te takutai. Ko ngā wero nui ko te tere, te koretake o te pūtake, me ngā herenga o ngā whatunga pūoko—ina koa mō ngā tsunami e tata ana ki ngā pūtake me ngā pūoko ehara i te tectonic. Me ngā whanaketanga o ngā taputapu, te rorohiko, me te whakaurunga raraunga, kei te whakapai tonu ngā āheinga whakatūpato wawe. Hei whakamutunga, ko te whāinga matua o ēnei hangarau matawhenua katoa ko te hoko wā nui mō te whakawātea me te whakaiti i te mate o te tangata i ngā rohe takutai ngoikore.
