Ngā Mita Rere o te Hongere Tuwhera: Ngā "Kaiwhakahaere Ine" Kāore i te Waiarikitia mō ngā Wai Kore Pēhanga

I te ao o te ine rere, i te wā e arohia ana ngā pūnaha paipa kati (pērā i ngā raina tuku wai, i ngā paipa ahumahi rānei), ka puta puku mai ngā mita rere awa tuwhera hei "kaitiaki" tino nui mō ngā wai kāore he pēhanga. Kāore i rite ki ō rātou hoa paipa kati e whakawhirinaki ana ki ngā rerekētanga pēhanga, ki te nekehanga miihini rānei, kua hangaia ēnei taputapu hei whakatau i ngā wero ahurei o ngā awa tuwhera—ngā ara kāore i te kati pērā i ngā awa, ngā awa waikeri, ngā awa waipara, me ngā awa whakamakuku—e rere noa ana te wai i raro i te kaha ā-papa. Ehara i te mea he taputapu motuhake, he mahi nui tā ngā mita rere awa tuwhera ki te whakahaere rauemi wai, te tiaki taiao, me te whai huatanga o ngā ahumahi, engari he maha ngā wā ka warewarehia ā rātou takoha. Ka wetewetehia e tēnei tuhinga ā rātou mātāpono mahi, ngā hoahoa auaha, me te pānga o te ao tūturu, e whakamārama ana he aha rātou te pou tuarā o te ine wai kāore he pēhanga.​

Te Wero Matua: Te Ine i te Rere Korehere​

He huinga arai ine motuhake kei roto i ngā awaawa tuwhera e kore e taea te whakatika e ngā mita paipa kati. Kāore i rite ki ngā paipa, kei reira te wai e pupurihia ana, ā, he rite tonu te pēhanga, he rerekē te hohonutanga o te rere o ngā awaawa tuwhera, he tere kore taurite (he tere ake i waenganui, he puhoi ake i ngā taha), ā, he ngāwari ki te paru, ki te paru, me te whakararuraru o te rangi. Ko ngā tikanga ā-ringa tuku iho—pērā i te whakamahi i ngā pā wai, i ngā awaawa rānei me ngā ine hohonu ā-ringa—he nui te mahi, he ngāwari ki te hapa tangata, ā, kāore e taea te whakarato raraunga wā-tūturu. Ka whakatauhia e ngā mita rere awaawa tuwhera ēnei āhuatanga mamae mā te whakakotahi i te ine hohonu aunoa me te tatau tere, ka tukuna he pānui tika, tonu ahakoa i roto i ngā taiao hihiri, kore here.​

Te Mahi a ngā Mita Rererangi Hongere Tuwhera: He Whakakotahitanga o te Tika me te Āheitanga ki te Urutau

I te pūtake, ka mahi ngā mita rere o te awa tuwhera i runga i tētahi kaupapa matua: te tere rere (Q) = te horahanga whakawhiti-wāhanga o te awa (A) × te tere wai toharite (V). Hei tatau i tēnei, ka whakauruhia e te nuinga o ngā tauira ngā mahi matua e rua: te ine hohonu me te kite tere, me ngā hoahoa kua whakaritea ki ngā rahi awa me ngā āhuatanga wai rerekē.

1. Te Ine i te Hōhonutanga: Te Pūtake o te Tātaitanga Tika​

Ko te hohonu te taurangi matua tuatahi, nā te mea ka whakatau tika i te horahanga whakawhiti o te awa. E toru ngā hangarau noa e whakamahia ana e ngā mita rere awa tuwhera hei ine i te hohonu:

• Ngā Pūoko Ultrasonic: Ko te kōwhiringa e whakamahia whānuitia ana. Ka tukuna e te pūoko kei runga ake i te awaawa ngā ngaru ultrasonic ki te mata wai; ka hurihia te wā e whakaatahia ai ngā ngaru ki te hohonu. Ka karohia e tēnei hoahoa kore-pa te kino mai i ngā paru, i te paru rānei, he mea tino pai mō ngā awa wai para, ngā waikeri ua rānei.

• Ngā Whakawhiti Pēhanga: Mō ngā awa iti ake, mō ngā wai rānei, ka inehia e ngā whakawhiti pēhanga ruku te hohonu mā te kite i te pēhanga waipū o te wai i runga ake nei (ka piki te pēhanga i te hohonutanga). He pakari engari me horoi tonu kia kore ai e pupū ake te paru.

• Ngā Pūoko Taiaho: Whakamahia mō ngā āhuatanga tino tika (hei tauira, te aroturuki taiwhanga, te aroturuki taiao rānei). Ka tukuna e ngā taiaho he hihi whaiti ki te mata wai, ka tukuna he tika o te hohonutanga mirimita—ahakoa he tairongo ki te kohu, te ua, te aueue rānei o te mata.

2. Te Pūrongo Tere: Te Hopu i te Nekehanga o te Wai​

Kia mōhiotia te hohonu, ka tatau te mita i te tere toharite hei whakatau i te tere rere. Ko ngā hangarau mōhio tere noa ko:

• Ngā Ultrasonika Doppler: Ka tukuna e te pūoko ruku ngā ngaru ultrasonic e pekepeke ana i ngā matūriki e neke ana (hei tauira, te paru, ngā mirumiru) i roto i te wai. Mā te nekehanga auau o ngā ngaru whakaata (te pānga Doppler) ka whakaatu i te tere. He pai te mahi a tēnei i roto i ngā wai pūngāwerewere, kī tonu i ngā matūriki pērā i te wai para, i te wai awa rānei.

• Ngā Pūoko Hikohiko: Mō ngā wai ma, he wai kawe hiko (hei tauira, te wai whakamakuku), ka whakamahia e ngā pūoko hikohiko ngā hikohiko hei kite i te ngaohiko i hangaia e te wai e neke ana i roto i te papa aukume (te ture a Faraday mō te whakapūtanga hikohiko). He rite te ngaohiko ki te tere, e tuku ana i te tino tika i roto i ngā rere pumau.

• Ngā Mita Porowhita/Au: He kōwhiringa miihini e rumakina ana te porowhita hurihuri ki roto i te wai; ka hono te tere o te porowhita ki te tere. He iti te utu mō ēnei mō ngā awa nui, puhoi te neke (hei tauira, ngā awa ahuwhenua) engari me tiaki tonu kia kore ai e piri mai ngā paru.

Ngā Hoahoa Auaha mō ngā Taiao Kanorau​

Ehara i te mea kotahi te rahi e pai ana mō te katoa ngā mita rere o ngā awa tuwhera—ka urutau ā rātou hoahoa ki ngā hiahia ahurei o ngā tono rerekē:

• Ngā Tauira Whakapiri/I Runga i te Hongere: Mō ngā awa nui, mō ngā awa uaua ki te uru atu, ka whakairihia ngā pūoko ultrasonic ki ngā piriti, ki ngā pou, ki ngā pakitara awa rānei, kia kore ai e hiahiatia he wāhanga ruku. He mea tino pai tēnei mō te aroturuki taiao i ngā awa tūturu.

• Ngā Kete Ruku: He pūoko kiato, ātete wai, e ruku katoatia ana ki roto i ngā awa iti (hei tauira, ngā paipa waipara ahumahi kua hurihia hei awa tuwhera) ngā waikeri ua rānei. Ātete ki te waikura, ā, e tiakina ana mai i te whakangaromanga.

• Ngā Pūnaha Pā/Awaawa Whakauru: Mō te ine tino tika i roto i ngā taiao whakahaeretia (hei tauira, ngā whare horoi wai), ka honoa ngā mita ki ngā pā (ngā kōhao i roto i te awaawa) ngā awaawa rānei (ngā wāhanga kuiti o te awaawa) e whakataurite ana i ngā tauira rere. Kātahi ka whakamahia e te mita ngā raraunga hohonu mai i te pā/awaawa hei tatau i te tere rere, hei whakaiti i ngā hapa mai i te tere kore taurite.

Te Pānga o te Ao Tūturu: Te Wāhi Tino Hiranga o ngā Mita Rere o te Hongere Tuwhera

1. Te Whakahaere Wai Para me te Wai Ua o te Tāone​

Ka whakawhirinaki ngā tāone ki ngā mita rere wai tuwhera hei aroturuki i ngā whare rongoā wai para (WWTP) me ngā pūnaha wai ua. I ngā WWTP, ka aroturukihia e ngā mita te rere o te wai para mata ki roto i ngā tāke rongoā, kia mōhio ai kei te mahi te whare rongoā i roto i tōna kaha, ā, kia rite ki ngā paerewa ture. I ngā wā o ngā awha, ka inehia e rātou te rere o te wai ua i roto i ngā awa waikeri, hei āwhina i ngā tāone ki te matapae i ngā waipuke, ki te whakahaere i ngā hanganga, me te ārai i te waipuke ki roto i ngā ara wai tūturu—he mea nui mō te whakaiti i te parahanga wai.​

2. Whakamakuku Ahuwhenua: Te Whakamahinga Wai Whai Hua

I roto i te ahuwhenua, ko ngā awa tuwhera (ngā awaawa) te huarahi matua ki te tohatoha wai ki ngā mara. Ka inehia e ngā mita rere e whakauruhia ana ki roto i ēnei awaawa te nui o te wai e whakamahia ana e ia pāmu, e ia mara rānei, kia taea ai te tohatoha tika me te whakatenatena i te tiaki. Hei tauira, i ngā rohe maroke pērā i te Central Valley o California, i te Murray-Darling Basin rānei o Ahitereiria, ka āwhina ngā mita i ngā kaimahi pāmu ki te karo i te nui rawa o te whakainu, te whakaiti i te para me te whakaiti i ngā utu. He tino whai hua ngā mita Doppler ki konei, nā te mea ka whakahaerea e rātou te paru me ngā rerenga rerekē e kitea ana i roto i ngā awaawa whakamakuku.​

3. Te Aroturukitanga Taiao: Te Tiaki i ngā Ara Wai Taiao

Ka whakamahia e ngā kaipūtaiao me ngā tari taiao ngā mita rere wai tuwhera hei aroturuki i ngā tere rere i roto i ngā awa, ngā manga wai, me ngā roto. He mea nui tēnei raraunga mō:

• Te aromatawai i te wātea o te wai mō ngā pūnaha rauropi (hei tauira, te whakarite kia nui te rere o te wai hei tautoko i ngā nohoanga ika).

• Te aroturuki i te pānga o ngā tāhuna wai, o ngā tangohanga wai rānei (hei tauira, te aroturuki i te pānga o te tāhuna wai hiko ki te rere o te awa i raro i te wai).

• Te urupare ki ngā kaupapa parahanga (hei tauira, te ine i te tere rere o te awa hei tatau i te nui o ngā parahanga e horapa ana).

4. Te Whakahaere Tukanga Ahumahi

Ka whakamahia e ngā ahumahi pēnei i te keri, te hanga, me te whakaputa hiko ngā awa tuwhera hei tuku i te wai para kua rongoatia, i ngā wai whakamatao rānei. Mā ngā mita rere ka whakarite kia tutuki ēnei tukunga ki ngā ture taiao (hei tauira, kaua e neke atu i ngā rohe rere kua whakatakotoria e ngā mana whakahaere ā-rohe) ā, ka āwhina i ngā wheketere ki te arotau i te whakamahinga wai. Hei tauira, ka whakamahia pea e te tipu hiko waro he mita rere hei aroturuki i te rere o te wai whakamatao i roto i te awa tuwhera, kia pai ai te mahi a te tipu me te whakaiti i te para wai.

He aha i kore ai e taea te whakakapi i ngā mita rere o te hongere tuwhera?

Ahakoa te nuinga o ngā mita paipa kati i roto i ngā pūnaha pēhanga, ka whakakīia e ngā mita rere awa tuwhera tētahi āputa nui mō ngā wai kāore i te pēhanga. Nā tō rātou āheinga ki te urutau ki ngā taiao uaua, hihiri—mai i ngā waikeri ua kī tonu i ngā paru ki ngā awa tawhiti—ka wehewehea rātou. Ka taea hoki e rātou te whakatau kaupapa e ahu mai ana i ngā raraunga: ka āwhina ngā raraunga rere wā-tūturu i ngā ratonga, ngā kaimahi pāmu, me ngā tari ki te urupare tere ki ngā huringa (hei tauira, ngā tupuhi ohorere, ngā pakaru taputapu) ā, ka tautokohia e ngā raraunga mō te wā roa ngā whāinga pumau (hei tauira, te whakaiti i te para wai, te tiaki i ngā rauropi).

Whakamutunga

Ahakoa ko ngā mita rere wai tuwhera te "toa kāore i te mōhiotia" mō te ine rere, kāore e kitea tōna pānga. I a te ao e anga whakamua ana ki ngā wero o te korenga o te wai, te parahanga, me te huringa āhuarangi, he mea nui te mahi a ēnei taputapu ki te whakahaere i tā tātou rauemi tino utu nui—te wai. Ahakoa te whakarite kia tika te tukatuka i ngā wai para, te āwhina i ngā kaimahi pāmu ki te whakamahi pai i te wai, te tiaki rānei i ngā rauropi taiao, ka whakaatu ngā mita rere wai tuwhera ko te ine whai hua te taahiraa tuatahi ki te tiaki tika. I roto i te ao e hanga ana ngā wai kore pēhanga i ō tātou tāone, pāmu, me te taiao, he mea nui ake ēnei "kaitiaki ine" i mua.