{"id":6276,"date":"2026-07-25T00:17:18","date_gmt":"2026-07-24T17:17:18","guid":{"rendered":"https:\/\/useful.vn\/?p=6276"},"modified":"2026-07-25T00:17:18","modified_gmt":"2026-07-24T17:17:18","slug":"dong-tia-khien-chau-au-hung-chiu-nang-nong-keo-dai","status":"publish","type":"post","link":"https:\/\/useful.vn\/?p=6276","title":{"rendered":"D\u00f2ng tia khi\u1ebfn ch\u00e2u \u00c2u h\u1ee9ng ch\u1ecbu n\u1eafng n\u00f3ng k\u00e9o d\u00e0i"},"content":{"rendered":"
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\nD\u00f2ng tia khi\u1ebfn ch\u00e2u \u00c2u h\u1ee9ng ch\u1ecbu n\u1eafng n\u00f3ng k\u00e9o d\u00e0i <\/h1>\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u ph\u00e1t hi\u1ec7n hai ki\u1ec3u m\u00f4 h\u00ecnh d\u00f2ng tia \u0111ang th\u00fac \u0111\u1ea9y h\u00ecnh th\u00e0nh c\u00e1c v\u00f2m nhi\u1ec7t k\u00e9o d\u00e0i \u1edf ch\u00e2u \u00c2u.<\/p>\n

D\u00f2ng tia li\u00ean t\u1ee5c thay \u0111\u1ed5i c\u00f3 th\u1ec3 gi\u1eef kh\u00f4ng kh\u00ed \u1ea5m ph\u00eda tr\u00ean ch\u00e2u \u00c2u, d\u1eabn \u0111\u1ebfn c\u00e1c \u0111\u1ee3t n\u1eafng n\u00f3ng k\u00e9o d\u00e0i t\u1eeb hai tu\u1ea7n tr\u1edf l\u00ean. Theo Prevention Web<\/em>, d\u00f2ng tia l\u00e0 c\u00e1c d\u1ea3i gi\u00f3 t\u1eadp trung \u1edf t\u1ea7ng th\u01b0\u1ee3ng quy\u1ec3n, di chuy\u1ec3n quanh Tr\u00e1i \u0110\u1ea5t \u1edf B\u1eafc v\u00e0 Nam b\u00e1n c\u1ea7u v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a ch\u00fang kh\u00f4ng c\u1ed1 \u0111\u1ecbnh, c\u00f3 th\u1ec3 d\u1ecbch chuy\u1ec3n v\u1ec1 ph\u00eda b\u1eafc ho\u1eb7c nam v\u00e0 thay \u0111\u1ed5i h\u01b0\u1edbng \u0111i \u0111\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi s\u1ef1 thay \u0111\u1ed5i v\u1ecb tr\u00ed v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a h\u1ec7 th\u1ed1ng th\u1eddi ti\u1ebft \u00e1p cao v\u00e0 \u00e1p th\u1ea5p.<\/p>\n

Theo New Scientist<\/em>, do ch\u1ec9 c\u00f3 d\u1eef li\u1ec7u kh\u00ed quy\u1ec3n h\u00e0ng ng\u00e0y c\u1ee7a kho\u1ea3ng 20 \u0111\u1ee3t n\u1eafng n\u00f3ng k\u00e9o d\u00e0i, Duncan Pappert, nghi\u00ean c\u1ee9u sinh t\u1ea1i \u0110\u1ea1i h\u1ecdc Bern \u1edf Th\u1ee5y S\u0129 v\u00e0 \u0111\u1ed3ng nghi\u1ec7p Olivia Martius, m\u00f4 ph\u1ecfng 1.900 \u0111\u1ee3t n\u1eafng n\u00f3ng ng\u1eafn ng\u00e0y b\u1eb1ng m\u00f4 h\u00ecnh kh\u00ed h\u1eadu ti\u00ean ti\u1ebfn v\u00e0 ph\u00e2n t\u00edch. H\u1ecd ph\u00e1t hi\u1ec7n nh\u1eefng giai \u0111o\u1ea1n n\u1eafng n\u00f3ng n\u00e0y th\u01b0\u1eddng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng t\u1eeb hai ki\u1ec3u m\u00f4 h\u00ecnh kh\u00ed quy\u1ec3n.<\/p>\n

Trong c\u1ea3 hai lo\u1ea1i, s\u00f3ng Rossby \u0111\u1ec1u thay \u0111\u1ed5i d\u00f2ng tia v\u00f9ng c\u1ef1c, v\u00e0nh \u0111ai gi\u00f3 m\u1ea1nh tr\u00ean cao \u1edf kho\u1ea3ng 60 \u0111\u1ed9 v\u0129 b\u1eafc. S\u00f3ng Rossby l\u00e0 nh\u1eefng lu\u1ed3ng s\u00f3ng u\u1ed1n l\u01b0\u1ee3n kh\u1ed5ng l\u1ed3 trong kh\u00ed quy\u1ec3n v\u00e0 \u0111\u1ea1i d\u01b0\u01a1ng c\u1ee7a Tr\u00e1i \u0110\u1ea5t, h\u00ecnh th\u00e0nh do s\u1ef1 t\u1ef1 quay c\u1ee7a h\u00e0nh tinh v\u00e0 \u0111\u00f3ng vai tr\u00f2 c\u1ed1t l\u00f5i trong \u0111i\u1ec1u h\u00f2a nhi\u1ec7t \u0111\u1ed9 to\u00e0n c\u1ea7u b\u1eb1ng c\u00e1ch chuy\u1ec3n kh\u00f4ng kh\u00ed \u1ea5m v\u1ec1 ph\u00eda v\u00f9ng c\u1ef1c v\u00e0 kh\u00f4ng kh\u00ed l\u1ea1nh v\u1ec1 ph\u00eda x\u00edch \u0111\u1ea1o.<\/p>\n

\u1ede ki\u1ec3u 1, d\u00f2ng tia tr\u1edf n\u00ean l\u01b0\u1ee3n s\u00f3ng h\u01a1n, u\u1ed1n cong v\u1ec1 ph\u00eda b\u1eafc quanh n\u01b0\u1edbc Anh v\u00e0 Scandinavia tr\u01b0\u1edbc khi \u0111\u1ed5i h\u01b0\u1edbng v\u1ec1 ph\u00eda nam, t\u1ea1o th\u00e0nh h\u00ecnh d\u1ea1ng gi\u1ed1ng ch\u1eef c\u00e1i omega (\u03a9) trong b\u1ea3ng ch\u1eef Hy L\u1ea1p. M\u1ed9t r\u00e3nh \u00e1p cao b\u1ec1n v\u1eefng h\u00ecnh th\u00e0nh trong kh\u1ed1i ch\u1eb7n omega n\u00e0y, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n v\u00f2m nhi\u1ec7t t\u1ed3n t\u1ea1i dai d\u1eb3ng ph\u00eda tr\u00ean T\u00e2y \u00c2u. Thay v\u00ec ph\u00e1 v\u1ee1 r\u00e3nh, c\u00e1c c\u01a1n b\u00e3o t\u1eeb \u0110\u1ea1i T\u00e2y D\u01b0\u01a1ng t\u0103ng c\u01b0\u1eddng ho\u00e0n l\u01b0u xo\u00e1y \u00e1p th\u1ea5p \u1edf \u0111\u1ea7u kh\u1ed1i omega, k\u00e9o kh\u00f4ng kh\u00ed n\u00f3ng t\u1eeb v\u00f9ng c\u1eadn nhi\u1ec7t \u0111\u1edbi l\u00ean ph\u00eda b\u1eafc khi n\u00f3 xoay tr\u00f2n.<\/p>\n

Trong ki\u1ec3u 2, d\u00f2ng tia di chuy\u1ec3n v\u1ec1 ph\u00eda v\u00f9ng c\u1ef1c, sau \u0111\u00f3 h\u01b0\u1edbng v\u1ec1 ph\u00eda b\u1eafc c\u1ee7a Anh nh\u01b0ng theo \u0111\u01b0\u1eddng th\u1eb3ng h\u01a1n, k\u00e9o theo r\u00e3nh \u00e1p cao h\u00ecnh th\u00e0nh ph\u00eda tr\u00ean ch\u00e2u \u00c2u. B\u00e3o chuy\u1ec3n \u0111\u1ed9ng men theo d\u00f2ng tia, chuy\u1ec3n h\u01b0\u1edbng c\u00e1c h\u1ec7 th\u1ed1ng \u00e1p th\u1ea5p v\u1ec1 ph\u00eda b\u1eafc l\u1ee5c \u0111\u1ecba trong khi kh\u00f4ng kh\u00ed n\u00f3ng t\u1eeb v\u00f9ng c\u1eadn nhi\u1ec7t \u0111\u1edbi tr\u00e0n v\u00e0o t\u1eeb ph\u00eda nam.<\/p>\n

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\n<\/div>
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Nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t ch\u00e2u \u00c2u v\u00e0o th\u00e1ng 6. \u1ea2nh: C3S\/ECMWF<\/em><\/p>\n<\/figcaption><\/figure>\n

Hai tr\u01b0\u1eddng h\u1ee3p n\u00eau tr\u00ean \u0111\u1ec1u d\u1eabn \u0111\u1ebfn v\u00f2m nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng ng\u1eebng \u1edf T\u00e2y \u00c2u. Tr\u00ean b\u1ec1 m\u1eb7t Tr\u00e1i \u0110\u1ea5t, kh\u00f4ng kh\u00ed di chuy\u1ec3n t\u1eeb h\u1ec7 th\u1ed1ng \u00e1p cao \u0111\u1ebfn c\u00e1c khu v\u1ef1c \u00e1p th\u1ea5p. Khi kh\u00f4ng kh\u00ed kh\u00f4 d\u1ed3n t\u1eeb tr\u00ean cao xu\u1ed1ng, n\u00f3 b\u1ecb n\u00e9n l\u1ea1i v\u00e0 n\u00f3ng l\u00ean, t\u01b0\u01a1ng t\u1ef1 qu\u00e1 tr\u00ecnh b\u01a1m l\u1ed1p xe \u0111\u1ea1p. Kh\u00f4ng kh\u00ed \u1ea9m kh\u00f4ng th\u1ec3 b\u1ed1c l\u00ean cao \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u00e2y, v\u00ec v\u1eady b\u1ea7u tr\u1eddi trong xanh v\u00e0 \u00e1nh n\u1eafng li\u00ean t\u1ee5c l\u00e0m n\u00f3ng t\u1ea7ng kh\u00ed quy\u1ec3n th\u1ea5p h\u01a1n. \u00c1nh n\u1eafng c\u0169ng nung n\u00f3ng m\u1eb7t \u0111\u1ea5t, l\u00e0m kh\u00f4 l\u1edbp \u0111\u1ea5t v\u00e0 gi\u1ea3m bay h\u01a1i, t\u1ea1o th\u00e0nh v\u00f2ng l\u1eb7p li\u00ean t\u1ee5c.<\/p>\n

Hai ki\u1ec3u m\u00f4 h\u00ecnh d\u00f2ng tia n\u00e0y l\u00e0 xu h\u01b0\u1edbng ph\u1ed5 bi\u1ebfn v\u00e0 kh\u00f4ng mang t\u00ednh tuy\u1ec7t \u0111\u1ed1i. Theo Pappert, v\u00f2m nhi\u1ec7t ph\u00eda sau \u0111\u1ee3t n\u1eafng n\u00f3ng k\u1ef7 l\u1ee5c h\u1ed3i th\u00e1ng 6 khi\u1ebfn kho\u1ea3ng 20.000 ng\u01b0\u1eddi ch\u1ebft \u1edf ch\u00e2u \u00c2u l\u00e0 ki\u1ec3u 2 tr\u01b0\u1edbc khi bi\u1ebfn \u0111\u1ed5i th\u00e0nh ki\u1ec3u 1. \u0110\u1ee3t n\u1eafng n\u00f3ng hi\u1ec7n nay t\u1ea1i ch\u00e2u \u00c2u ch\u1ee7 y\u1ebfu gi\u1ed1ng ki\u1ec3u 1, v\u1edbi m\u1ed9t r\u00e3nh \u00e1p th\u1ea5p \u1edf ph\u00eda t\u00e2y c\u1ee7a r\u00e3nh \u00e1p cao ph\u00eda tr\u00ean ch\u00e2u \u00c2u.<\/p>\n

C\u00e1c \u0111\u1ee3t n\u1eafng n\u00f3ng k\u00e9o d\u00e0i \u00edt nh\u1ea5t m\u1ed9t tu\u1ea7n nguy hi\u1ec3m h\u01a1n so v\u1edbi s\u1ef1 ki\u1ec7n v\u00e0i ng\u00e0y v\u00ec c\u01a1 th\u1ec3 ng\u01b0\u1eddi ch\u1ecbu \u00e1p l\u1ef1c l\u00e2u h\u01a1n. C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng nh\u01b0 \u0111\u1eadp th\u1ee7y \u0111i\u1ec7n v\u00e0 n\u00f4ng nghi\u1ec7p c\u0169ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng. Vi\u1ec7c hi\u1ec3u r\u00f5 v\u1ec1 m\u00f4 h\u00ecnh kh\u00ed quy\u1ec3n c\u00f3 th\u1ec3 gi\u00fap chuy\u00ean gia \u0111\u01b0a ra c\u1ea3nh b\u00e1o s\u1edbm v\u1ec1 \u0111\u1ee3t n\u1eafng n\u00f3ng k\u00e9o d\u00e0i, gi\u00fap ng\u01b0\u1eddi d\u00e2n, doanh nghi\u1ec7p v\u00e0 nh\u00e0 ch\u1ee9c tr\u00e1ch c\u00f3 th\u00eam th\u1eddi gian chu\u1ea9n b\u1ecb \u1ee9ng ph\u00f3.<\/p>\n

C\u00e1c \u0111\u1ee3t n\u1eafng n\u00f3ng \u0111ang tr\u1edf n\u00ean gay g\u1eaft, th\u01b0\u1eddng xuy\u00ean v\u00e0 k\u00e9o d\u00e0i h\u01a1n do qu\u00e1 tr\u00ecnh \u1ea5m l\u00ean to\u00e0n c\u1ea7u \u0111ang n\u00e2ng cao nhi\u1ec7t \u0111\u1ed9 n\u1ec1n. Theo nghi\u00ean c\u1ee9u c\u00f4ng b\u1ed1 n\u0103m 2022 tr\u00ean t\u1ea1p ch\u00ed Nature Communications, n\u1eafng n\u00f3ng \u1edf ch\u00e2u \u00c2u t\u0103ng nhanh g\u1ea5p 3-4 l\u1ea7n so v\u1edbi nh\u1eefng n\u01a1i kh\u00e1c \u1edf v\u0129 \u0111\u1ed9 trung b\u00ecnh c\u1ee7a B\u1eafc b\u00e1n c\u1ea7u nh\u01b0 M\u1ef9 ho\u1eb7c Canada.<\/p>\n

M\u1ed9t s\u1ed1 nghi\u00ean c\u1ee9u ch\u1ec9 ra kh\u1ed1i ch\u1eb7n \u00e1p cao li\u00ean quan \u0111\u1ebfn d\u00f2ng tia s\u1ebd tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn v\u00e0 dai d\u1eb3ng h\u01a1n \u1edf ch\u00e2u \u00c2u trong khi c\u00e1c m\u00f4 h\u00ecnh kh\u00e1c cho th\u1ea5y s\u1ef1 thay \u0111\u1ed5i. D\u00f2ng tia \u0111ang b\u1eaft \u0111\u1ea7u d\u1ecbch chuy\u1ec3n v\u1ec1 ph\u00eda b\u1eafc, c\u00f3 th\u1ec3 mang l\u1ea1i \u0111i\u1ec1u ki\u1ec7n kh\u00f4 h\u01a1n \u1edf mi\u1ec1n nam ch\u00e2u \u00c2u. N\u1ebfu ki\u1ec3u m\u00f4 h\u00ecnh 1 v\u00e0 2 xu\u1ea5t hi\u1ec7n nhi\u1ec1u ho\u1eb7c k\u00e9o d\u00e0i h\u01a1n, n\u00f3 s\u1ebd g\u00e2y thi\u1ec7t h\u1ea1i l\u1edbn cho n\u1ec1n kinh t\u1ebf v\u00e0 s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi.<\/p>\n

T\u1ed5 ch\u1ee9c Kh\u00ed t\u01b0\u1ee3ng Th\u1ebf gi\u1edbi (WMO), c\u01a1 quan chuy\u00ean m\u00f4n c\u1ee7a LHQ v\u1ec1 th\u1eddi ti\u1ebft, kh\u00ed h\u1eadu v\u00e0 t\u00e0i nguy\u00ean n\u01b0\u1edbc, c\u1ea3nh b\u00e1o th\u1ebf gi\u1edbi c\u1ea7n chu\u1ea9n b\u1ecb cho s\u1ef1 tr\u1edf l\u1ea1i s\u1eafp t\u1edbi c\u1ee7a El Nino. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn th\u1eddi ti\u1ebft bi\u1ebfn \u0111\u1ed9ng m\u1ea1nh. Kh\u00f4ng ch\u1ec9 ch\u00e2u \u00c2u, ch\u00e2u \u00c1 d\u1ef1 ki\u1ebfn c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng khu v\u1ef1c ch\u1ecbu \u1ea3nh h\u01b0\u1edfng n\u1eb7ng, khi n\u1eafng n\u00f3ng, h\u1ea1n h\u00e1n gia t\u0103ng c\u00f3 th\u1ec3 g\u00e2y s\u1ee9c \u00e9p l\u1edbn l\u00ean n\u00f4ng nghi\u1ec7p, l\u01b0\u1edbi \u0111i\u1ec7n v\u00e0 ngu\u1ed3n n\u01b0\u1edbc.<\/p>\n

An Khang <\/strong>t\u1ed5ng h\u1ee3p<\/em><\/p>\n<\/article>\n

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https:\/\/vnexpress.net\/dong-tia-khien-chau-au-hung-chiu-nang-nong-keo-dai-5097418.html<\/p>\n","protected":false},"excerpt":{"rendered":"

D\u00f2ng tia khi\u1ebfn ch\u00e2u \u00c2u h\u1ee9ng ch\u1ecbu n\u1eafng n\u00f3ng k\u00e9o d\u00e0i C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u ph\u00e1t hi\u1ec7n hai ki\u1ec3u m\u00f4 h\u00ecnh d\u00f2ng tia \u0111ang th\u00fac \u0111\u1ea9y h\u00ecnh th\u00e0nh c\u00e1c v\u00f2m nhi\u1ec7t k\u00e9o d\u00e0i \u1edf ch\u00e2u \u00c2u. D\u00f2ng tia li\u00ean t\u1ee5c thay \u0111\u1ed5i c\u00f3 th\u1ec3 gi\u1eef kh\u00f4ng kh\u00ed \u1ea5m ph\u00eda tr\u00ean ch\u00e2u \u00c2u, d\u1eabn \u0111\u1ebfn c\u00e1c<\/p>\n","protected":false},"author":1,"featured_media":6277,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-6276","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghe"],"_links":{"self":[{"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/posts\/6276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6276"}],"version-history":[{"count":0,"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/posts\/6276\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/media\/6277"}],"wp:attachment":[{"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}