Ngokwezilinganiso ezivela kubacwaningi e-Swiss Federal Institute for Forest, Snow and Landscape Research (WSL) kanye nase-USA, cishe izinambuzane eziyizigidigidi eziyi-100 zindiza phezu kwe-USA ngosuku lwasehlobo. Besebenzisa i-radar yesimo sezulu, banqume inani lezinambuzane ezindizayo phezu kwezwekazi laseMelika okokuqala ngqa.
- Abacwaningi basebenzise idatha evela kumadivayisi e-radar yesimo sezulu angu-140 ukulinganisa inani lezinambuzane e-USA.
- Inani lezinambuzane lapho lihlale lizinzile eminyakeni eyishumi edlule, kodwa kube nokwanda okukhulu kanye nokwehla kwezifunda.
- Le ndlela ivumela ukuqapha ubuningi bezinambuzane ngezinga elingakaze libonwe ngaphambili.
Nakuba izigidi zezinto eziphilayo zindiza, zidla futhi zizalane emoyeni, le ndawo yokuhlala ayihlolisiswa kahle. Izinambuzane emhlabeni wonke zingaphansi kwengcindezi ekhulayo ngenxa yokushintsha kwesimo sezulu kanye nemisebenzi yabantu.Nokho, kuze kube manje, ukuhlola imiphumela emikhulu yalokhu kucindezela kuye kwaba nzima, njengoba ukuqapha izinambuzane kugxile kakhulu ezinhlotsheni ezimbalwa futhi idatha iqoqwa endaweni kuphela.
Umthombo omusha wedatha ungagcwalisa lesi sikhala: i-radar yesimo sezulu. Amazwe amaningi asebenzisa amanethiwekhi amakhulu e-radar yesimo sezulu, anikeza indlela ezenzakalelayo, engabizi kakhulu, futhi enkulu yokuqapha izinambuzane esikhaleni somoya. Abona amafu kanye nemvula futhi abone konke okunye okundiza emoyeni.
Idatha yeradar yesimo sezulu yenziwa itholakale mahhala yi-NOAA e-USA. U-Elske Tielens wase-Swiss research institute WSL, uJeff Kelly wase-University of Oklahoma (OU) noPhil Stepanian, owayese-OU ngaleso sikhathi futhi manje eseLincoln Lab yase-MIT, basebenzise le datha ukwenza isilinganiso sokuqala emhlabeni senani lezinambuzane ezwenikazi lase-US: Ngosuku olujwayelekile lwasehlobo, izinambuzane ezingaphezu kwezigidigidi eziyi-100 (10<sup>14</sup>), ezimele izigidi zamathani e-biomass, zindiza phezu kwe-USA, kubika iphephandaba i- Global Change Biology.
Amazinga okushisa ashintshashintshayo ebusika
Kulolu chungechunge lokuqala lwezikhathi zezwekazi, inani lezinambuzane lahlala lizinzile eminyakeni eyishumi eyafundwa (2012 kuya ku-2021). Kodwa-ke, kwabonakala ukuguquguquka okukhulu kwesifunda: Cishe ingxenye yamadivayisi e-radar aqophe ukwanda kobuningi bezinambuzane, kanti enye ingxenye iqophe ukwehla. Lokhu kuguquguquka kuhlobene kakhulu namazinga okushisa asebusika: Inani lezinambuzane lehle kakhulu ezindaweni ezinamazinga okushisa akhuphukayo. Umjikelezo wokuphila wezinambuzane eziningi—kusukela ekuchanyuselweni nasekuthuthukisweni kuya ekuhlaselweni yizinambuzane—uthonywa kakhulu amazinga okushisa.
Ukuqapha i-radar kwembula amaphethini ezwekazi lezinambuzane ezindizayo okokuqala futhi, ngenxa yengobo yomlando ye-radar ye-NOAA, inikeza uchungechunge lwesikhathi oluyingqayizivele lweminyaka eyishumi. Kodwa-ke, akuyona ikhambi: "Ukwehla okukhulu kwenani lezinambuzane cishe kwenzeke phakathi kweminyaka yama-1970 nama-1990, ngaphambi kokuba siqale ukulondoloza," kusho uTielens. Ngaphezu kwalokho, i-radar ayikwazi ukuthola izinhlobo zezinambuzane ngazinye, futhi ukuthambekela okuzinzile e-US kungafihla iqiniso lokuthi izinhlobo ezizwela kakhulu imvelo ziyanyamalala kuyilapho izinhlobo ezivamile zanda. "Ngakho-ke, kubalulekile ukuhlanganisa idatha ye-radar neminye imithombo yedatha - izinhlolovo zendawo, isayensi yezakhamuzi, njalo njalo," kugcizelela uTielens.
