INyakatho Melika itholakala enyakatho ntshonalanga Nenkabazwe yomhlaba. Izwekazi lisuka enyakatho liye eningizimu ngaphezu kwamakhilomitha ayizinkulungwane eziyisikhombisa, futhi litholakala ezindaweni eziningi zezulu.
Isimo sezulu sase-Arctic
Ogwini olusenyakatho yezwekazi, eGreenland nasengxenyeni yeziqhingi zaseCanada, kunesimo sezulu se-arctic. Kubuswa izingwadule zase-arctic ezigcwele iqhwa, kanti ubulembu nobulembu bukhula ezindaweni. Izinga lokushisa ebusika liyahluka phakathi kuka -32-40 degrees Celsius, kanti ehlobo alikho ngaphezu kwama- +5 degrees. EGreenland, isithwathwa singahle sehle siye ku-70 degrees. Kulesi simo sezulu, kuvunguza umoya we-arctic nokomile ngaso sonke isikhathi. Imvula yonyaka ayidluli kuma-250 mm, futhi iqhwa ikakhulu.
Ibhande elingaphansi komhlaba lihlala e-Alaska nasenyakatho yeCanada. Ebusika, izindimbane zomoya ezivela e-Arctic ziyahamba lapha futhi zilethe amakhaza amakhulu. Ehlobo, izinga lokushisa lingakhuphukela ku- +16 degrees. Imvula yonyaka ingu-100-500 mm. Umoya lapha ulingene.
Isimo sezulu esipholile
Iningi leNyakatho Melika limbozwe yisimo sezulu esipholile, kepha izindawo ezahlukahlukene zinezimo zezulu ezihlukile, kuya ngomswakama. Nika indawo yasolwandle entshonalanga, ngokulinganisela izwekazi - empumalanga nezwekazi - enkabeni. Engxenyeni esentshonalanga, izinga lokushisa lishintsha kancane unyaka wonke, kepha kunenani elikhulu lemvula - 2000-3000 mm ngonyaka. Engxenyeni emaphakathi, ihlobo lifudumele, ubusika buyabanda, kanye nemvula emaphakathi. Ogwini olusempumalanga, ubusika buyabanda futhi ihlobo alishisi, cishe imvula engama-1000 mm ngonyaka. Izindawo zemvelo nazo ziyahlukahluka lapha: i-taiga, i-steppe, amahlathi ahlanganisiwe nalawo anqabile.
Endaweni efudumele, ehlanganisa i-United States eseningizimu nenyakatho yeMexico, ubusika bupholile futhi amazinga okushisa cishe awaze ehle abe ngaphansi kwama-degree angu-0. Umoya onomswakama opholile ubusa kakhulu ebusika, nomoya owomile oshisayo ehlobo. Zintathu izifunda kule ndawo enesimo sezulu: isimo sezulu esishisayo sezwekazi sithathelwa indawo yisiphepho saseMedithera nasolwandle.
Isimo sezulu esishisayo
Ingxenye enkulu ye-Central America imbozwe isimo sezulu esishisayo. Kuyo yonke insimu, amanani ahlukahlukene emvula awela lapha: kusuka ku-250 kuya ku-2000 mm ngonyaka. Akukho nkathi ebandayo lapha, futhi ihlobo liyabusa cishe sonke isikhathi.
Ingcezu encane yezwekazi laseNyakatho Melika ihlala endaweni yesimo sezulu esingaphansi komhlaba. Kuyashisa cishe sonke isikhathi lapha, ngemvula ehlobo ngenani lika-2000-3000 mm ngonyaka. Lesi simo sezulu sinamahlathi, ama-savanna, namahlathi.
INyakatho Melika itholakala kuzo zonke izindawo ezinesimo sezulu ngaphandle kwendawo esenkabazwe. Endaweni ethile kukhona ubusika obubiziwe, ihlobo elishisayo, futhi kwezinye izindawo, ukuguquguquka kwesimo sezulu phakathi nonyaka kucishe kungabonakali. Lokhu kuthinta ukwehlukahluka kwezitshalo nezilwane ezwenikazi.
