Umphumela Wokushintsha Kwesimo Sezulu Ezimweni Ze-Geophysical
I-Pendahuluan
Ukushintsha kwesimo sezulu kuyisenzakalo somhlaba wonke esinomthelela oqondile nongaqondile ezicini ezahlukene zokuphila kanye nemvelo. Lesi simo asigcini nje ngokuphazamisa isimo sezulu sendawo kanye nesimo sezulu kodwa futhi sithinta ne-geophysics yoMhlaba. Kulesi sihloko, sizohlola ukuthi ushintsho lwesimo sezulu luthinta kanjani izimo ezahlukahlukene ze-geophysical njengokwenyuka kwezinga lolwandle, izinguquko emaphethini emvula, iqhwa elincibilikayo, kanye nomsebenzi wokuzamazama komhlaba. Ukuqonda le miphumela kubalulekile ekuqaliseni izinyathelo ezifanele zokunciphisa.
Ukuphakama Kwezinga Lolwandle
Ukwenyuka kwezinga lolwandle kungenye yemiphumela ebaluleke kakhulu yokushintsha kwesimo sezulu. Ukufudumala komhlaba kubangela ukuthi amanzi olwandle ande futhi iziqongo zeqhwa zincibilike eNyakatho naseNingizimu Poles. Ngokusho kocwaningo olwanyatheliswa yi-Intergovernmental Panel on Climate Change (IPCC), amazinga olwandle emhlabeni wonke akhuphuke cishe ngamasentimitha angu-8-9 kusukela ngo-1880. Lo mkhuba kulindeleke ukuthi uqhubeke, ngisho nangaphansi kwezimo ezimaphakathi zokukhishwa kwamagesi okushisa okushisa.
Ukwenyuka kwezinga lolwandle kunemiphumela ethinta kakhulu imvelo yasogwini kanye nemiphakathi yabantu. Ukuguguleka kogu lolwandle, ukungena kwamanzi anosawoti emithonjeni yamanzi ahlanzekile, kanye nokulahlekelwa izindawo zokuhlala ezibalulekile njengemihlume namaxhaphozi kungenye yemiphumela esheshayo esivele izwakala. Ukulahlekelwa kwezomnotho nakho kulindeleke, ikakhulukazi emazweni amancane aseziqhingini athembele kwezokuvakasha kanye nokudoba.
Izinguquko Emaphethini Emvula
Ukushintsha kwesimo sezulu nakho kubangela ushintsho emaphethini emvula emhlabeni jikelele. Nakuba ezinye izifunda zibhekana nemvula eyanda, ezinye zingase zibhekane nesomiso esihlala isikhathi eside. Lesi simo sithinta imithombo yamanzi, ezolimo, kanye nokusinda kwezitshalo nezilwane.
Izinguquko emaphethini emvula azithinti nje kuphela ubuso bomhlaba kodwa futhi zinemiphumela ye-geophysics engaphansi komhlaba. Isibonelo, ukwanda kwemvula kungabangela ukuguguleka kwenhlabathi futhi kwandise ingozi yokuguguleka komhlaba ezindaweni ezisengozini. Ngakolunye uhlangothi, isomiso esibi kakhulu singabangela ukwehla kwamazinga amanzi angaphansi komhlaba, okubangela ukwehla komhlaba kwezinye izindawo zasemadolobheni, futhi kuthinte ukuzinza kwezakhiwo ze-geological.
Iqhwa Elincibilikayo Namaqhwa Ancibilikayo
Izingqimba zeqhwa kanye nezingqimba zeqhwa ezindaweni ezibandayo ziyizinkomba ezibucayi zokushintsha kwesimo sezulu. Njengoba amazinga okushisa omhlaba enyuka, ukuncibilika kweqhwa kanye nezingqimba zeqhwa kuyashesha. Isibonelo esisodwa esiphawulekayo ukuncibilika kwezingqimba zeqhwa zaseGreenland nase-Antarctic, okunegalelo elikhulu ekukhuphukeni kwezinga lolwandle.
Ngaphezu kwalokho, ukuncibilika kweqhwa nakho kuthinta ukugeleza kwemifula kanye nokuzinza kwezindawo ezizungezile ezintabeni. Ukuncibilika kweqhwa kubangela izinguquko ekugelezeni kwemifula, okuthinta ukusinda kwezindawo zemvelo ezincike emanzini abandayo avela kumaqhwa. Ngokwesilinganiso sendawo, ukulahleka kweqhwa kungashintsha ukucindezeleka koqweqwe loMhlaba, okungase kubangele ukushintshashintsha kwe-tectonic futhi kwandise ingozi yokuzamazama komhlaba kanye nomsebenzi wezintaba-mlilo ezindaweni ezithile.
Umsebenzi Wokuzamazama Komhlaba kanye Nokuqubuka Kwentaba-mlilo
Nakuba kungabangelwa ngqo ukushintsha kwesimo sezulu, ukuzamazama komhlaba kanye nomsebenzi wezintaba-mlilo kungathinteka yiwo ngokusebenzisa izindlela eziyinkimbinkimbi. Isibonelo esisodwa ukwehla kwesisindo seqhwa oqweqweni loMhlaba ngenxa yokuncibilika kweqhwa. Lapho iqhwa lincibilika, ukucindezela okukhulu oqweqweni loMhlaba kuyasuswa, okubangela "ukugoba" noma ukuphakama koqweqwe. Le nqubo ingabangela ukuhlukana kwamaphutha e-tectonic, okungenzeka kubangele ukuzamazama komhlaba.
Ngaphezu kwalokho, izinguquko ekucindezelweni koqweqwe loMhlaba nazo zingathinta umsebenzi wezintaba-mlilo. Ucwaningo olulodwa lubonisa ukuthi ukwehla kokumbozwa kweqhwa e-Iceland, kanye nokuncibilika kweqhwa, kuye kwaba nomthelela ekwandeni komsebenzi wezintaba-mlilo esifundeni. Lesi simo sibonisa ukuthi ubudlelwano phakathi kokushintsha kwesimo sezulu kanye nomsebenzi we-geological buyinkimbinkimbi kakhulu futhi buhlanganisa izinto eziningi.
I-Permafrost kanye ne-Geohazards
I-Permafrost iwungqimba lomhlabathi oluhlala luqandisiwe unyaka wonke futhi luvame ukutholakala ezindaweni ezibandayo nezingaphansi kwe-Arctic. Ukufudumala komhlaba kubangela ukuthi i-permafrost incibilike, okube nomthelela esakhiweni se-geological kanye ne-hydrological sale ndawo. Ukuncibilikisa i-permafrost kungaholela ekukhishweni okukhulu kwe-methane ebambekile, igesi enamandla yokushisa.
Ngaphezu kwalokho, ukuncibilikisa i-permafrost kungabangela ukuthi inhlabathi ilahlekelwe amandla ayo okuthwala, okubangela umonakalo engqalasizinda efana nemigwaqo, amabhuloho, kanye nezakhiwo ezindaweni ezizinzile ngaphambilini. Imiphumela yale geohazard idinga ukunakwa okukhethekile ekuhleleni intuthuko kanye nokunciphisa izindawo ezithintekile i-permafrost.
Ukuzinza Kwemithambeka Nokudilika Kwenhlabathi
Ukushintsha kwesimo sezulu kwaziwa nangokuthi kuthinta ukuzinza kwemithambeka ezindaweni ezahlukene zomhlaba. Ukwanda kwemvula, ikakhulukazi amaphethini emvula enkulu, kungandisa ingozi yokudilika komhlaba. Ngokuphambene nalokho, isikhathi eside sesomiso singabangela ukuqhekeka okukhulu komhlabathi, kwenze buthaka ubuqotho bemithambeka futhi kubangele ukuthi ithambeka lidilike lapho kubuya izimvula ezinkulu.
Izifundo ze-geophysical zikhombisile ukuthi ubudlelwano phakathi kwamaphethini emvula kanye nokuqina kwenhlabathi kubalulekile ekuqondeni nasekubikezeleni ukunyakaza komhlaba kwesikhathi esizayo. Ngakho-ke, ukuqapha okuqhubekayo kanye nokulingisa okuqhutshwa idatha kubalulekile ekubikezeleni nasekuphatheni ingozi yokudilika komhlaba.
Isiphetho
Imiphumela yokushintsha kwesimo sezulu ezimweni ze-geophysical icacile futhi iyahlukahluka, okuhlanganisa ukuphakama kwezinga lolwandle, izinguquko emvuleni, iqhwa elincibilikayo kanye neqhwa, kanye nomsebenzi wokuzamazama komhlaba kanye nowentaba-mlilo. Ngayinye yalezi zici inemiphumela eyinkimbinkimbi ezindaweni zemvelo, ingqalasizinda, kanye nokuphila kwabantu. Ngakho-ke, ukuqonda nokunciphisa le miphumela kudinga indlela ehlukahlukene kanye nokubambisana phakathi kososayensi, abenzi bezinqubomgomo, kanye nomphakathi obanzi.
Ukubhekana nezinselele ezibangelwa ukuguquka kwesimo sezulu kudinga izinyathelo ezisebenzayo njengokunciphisa ukukhishwa kwamagesi ashisa ukushisa, ukuzivumelanisa nokushintsha kwesimo sezulu, kanye nokutshala imali ocwaningweni oluthuthukisiwe lwe-geophysical kanye nobuchwepheshe. Kuphela ngendlela ephelele kanye nokuqwashisa ngokuhlanganyela lapho singabhekana futhi sinciphise khona imiphumela yokushintsha kwesimo sezulu ezimweni ze-geophysical kanye nokusimama kwesikhathi esizayo koMhlaba.
