视频丨成都刮起数十年难遇龙卷风是真的吗？专家科普

\u003cdiv class=\"rich_media_content\"\u003e\u003cdiv class=\"cms-cke-widget-quote-normal-2 cms-cke-widget-quote-tpl cms-cke-widget-quote-wrapper cms-cke-widget-tpl\" data-key=\"quote-normal-2\" data-reactroot=\"\" style=\"align-items: center; display: flex; font-size: 19px; justify-content: center; margin-bottom: 28px; margin-top: 28px; padding-top: 25px; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-quote-container\" style=\"background: rgba(0,38,154,0.05); border-bottom: 1px solid #001966; border-left: 1px solid #001966; border-right: 1px solid #001966; padding: 17px 12px; position: relative; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-line1\" style=\"background: #001966; height: 1px; left: 0px; position: absolute; top: 0px; width: 6px\"\u003e \u003c/div\u003e\n\u003cdiv class=\"cms-cke-widget-line2\" style=\"background: #001966; height: 1px; position: absolute; right: 0; top: 0; width: calc(100% - 50px)\"\u003e \u003c/div\u003e\n\u003csection class=\"cms-cke-widget-quote-icon\" style=\"background-image: url(https://inews.gtimg.com/om_bt/OSVkGXuYImc9v1pDDQWdNijNR-zQNWgLjI58FTqlAnTT0AA/0); background-position: center; background-repeat: no-repeat; background-size: cover; display: inline-block; height: 28px; left: 14px; position: absolute; top: -25px; width: 28px\"\u003e \u003c/section\u003e\n\u003cdiv class=\"cms-cke-widget-quote-content\" style=\"color: #212228; line-height: 27px; text-align: justify; width: 100%\"\u003e\n\u003cp\u003e近日，四川成都非遗博览园内突然刮起一阵旋风，引发关注。\u003c/p\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c!--VIDEO_0--\u003e\u003cspan style=\"text-align: center;font-size: 13px;color: rgb(136, 136, 136); line-height: 14px;margin-bottom: 22px;margin-top: 8px; display: block;\"\u003e\u003c/span\u003e\n\u003cdiv class=\"cms-cke-widget-title-normal-1 cms-cke-widget-title-tpl cms-cke-widget-title-wrapper cms-cke-widget-tpl\" data-key=\"title-normal-1\" data-reactroot=\"\" style=\"align-items: center; box-sizing: border-box; display: flex; font-size: 19px; font-weight: bold; justify-content: center; margin-bottom: 20px; margin-top: 28px; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-title-container\" style=\"background-color: #001966; display: inline-block; margin-top: 4px; padding: 2px; position: relative; z-index: 9\"\u003e\n\u003cdiv class=\"out\" style=\"border: 1px solid #001966; box-sizing: border-box; display: inline-block; height: 100%; left: 4px; position: absolute; top: -4px; width: 100%\"\u003e \u003c/div\u003e\n\u003cdiv style=\"position: relative\"\u003e\n\u003cdiv class=\"title-normal-1-text-border\" style=\"border: 1px solid #ffffff; box-sizing: border-box; height: 199%; left: 0; position: absolute; top: 0; transform: scale(0.5); transform-origin: 0 0; width: 199%\"\u003e \u003c/div\u003e\n\u003cdiv class=\"cms-cke-widget-title-wrap title-normal-1-text\" style=\"color: #ffffff; display: inline-block; line-height: 26px; padding: 1px 12px; position: relative; text-align: center; word-break: break-all\"\u003e\n\u003cp\u003e成都刮起数十年难遇\u003c!--VERTICAL_CARD_BEGIN_0--\u003e龙卷风\u003c!--VERTICAL_CARD_END_0--\u003e\u003c/p\u003e\n\u003cp\u003e是真的吗？\u003c/p\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cp data-source=\"cke\"\u003e2月1日下午2点左右，开阔的草坪上，不少市民正在惬意露营。突然，一阵旋风毫无预兆地出现，中心卷起大量尘土，形成明显的涡旋，周边数顶帐篷被瞬间掀翻，市民纷纷避让。据了解，1961年至今，成都从未观测到龙卷风，所以很多人都感到非常惊讶，难道这是遇到了数十年难遇的龙卷风吗？\u003c!--MID_AD_0--\u003e\u003c!--EOP_0--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_0--\u003e\n\u003cp\u003e\u003c!--IMG_0--\u003e\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e对于这阵旋风，气象部门给出了不一样的解释，这阵旋风还真不是龙卷风！那么，这阵旋风到底叫什么？是如何形成的呢？来听听专家的解释。\u003c/p\u003e\n\u003cdiv class=\"cms-cke-widget-title-normal-1 cms-cke-widget-title-tpl cms-cke-widget-title-wrapper cms-cke-widget-tpl\" data-key=\"title-normal-1\" data-reactroot=\"\" style=\"align-items: center; box-sizing: border-box; display: flex; font-size: 19px; font-weight: bold; justify-content: center; margin-bottom: 20px; margin-top: 28px; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-title-container\" style=\"background-color: #001966; display: inline-block; margin-top: 4px; padding: 2px; position: relative; z-index: 9\"\u003e\n\u003cdiv class=\"out\" style=\"border: 1px solid #001966; box-sizing: border-box; display: inline-block; height: 100%; left: 4px; position: absolute; top: -4px; width: 100%\"\u003e \u003c/div\u003e\n\u003cdiv style=\"position: relative\"\u003e\n\u003cdiv class=\"title-normal-1-text-border\" style=\"border: 1px solid #ffffff; box-sizing: border-box; height: 199%; left: 0; position: absolute; top: 0; transform: scale(0.5); transform-origin: 0 0; width: 199%\"\u003e \u003c/div\u003e\n\u003cdiv class=\"cms-cke-widget-title-wrap title-normal-1-text\" style=\"color: #ffffff; display: inline-block; line-height: 26px; padding: 1px 12px; position: relative; text-align: center; word-break: break-all\"\u003e\n\u003cp\u003e专家：\u003c!--VERTICAL_CARD_BEGIN_1--\u003e尘卷风\u003c!--VERTICAL_CARD_END_1--\u003e与龙卷风\u003c/p\u003e\n\u003cp\u003e成因威力截然不同\u003c/p\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cp data-source=\"cke\"\u003e\u003cstrong data-source=\"cke\"\u003e中国气象局高级工程师戴云伟：\u003c/strong\u003e这是尘卷风。龙卷风是从天空伸展到地面；尘卷风是从地面向上发展，破坏力很弱，因为看起来像水涡形状，因此还有一个别名“泉风”。尘卷风和龙卷风看似有点像，但并不是一回事。尘卷风的移动速度跟我们平时骑自行车时候的速度差不多，一般人可以通过肉眼判断它的移动方向，而龙卷风速度快，破坏性巨大。\u003c!--MID_AD_1--\u003e\u003c!--EOP_1--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_1--\u003e\n\u003cp\u003e\u003c!--IMG_1--\u003e\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e专家介绍，尘卷风通常容易在没有建筑、空旷的地方产生，持续时间几十秒到几分钟，造成的危害一般较小。\u003cspan class=\"color-0070c0\" data-source=\"cke\"\u003e\u003cstrong data-source=\"cke\"\u003e户外遭遇尘卷风时，需保持冷静，切勿同向奔跑，应及时远离；若来不及撤离，可抱头蹲下避险。\u003c/strong\u003e\u003c/span\u003e\u003c/p\u003e\n\u003cdiv class=\"cms-cke-widget-title-normal-1 cms-cke-widget-title-tpl cms-cke-widget-title-wrapper cms-cke-widget-tpl\" data-key=\"title-normal-1\" data-reactroot=\"\" style=\"align-items: center; box-sizing: border-box; display: flex; font-size: 19px; font-weight: bold; justify-content: center; margin-bottom: 20px; margin-top: 28px; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-title-container\" style=\"background-color: #001966; display: inline-block; margin-top: 4px; padding: 2px; position: relative; z-index: 9\"\u003e\n\u003cdiv class=\"out\" style=\"border: 1px solid #001966; box-sizing: border-box; display: inline-block; height: 100%; left: 4px; position: absolute; top: -4px; width: 100%\"\u003e \u003c/div\u003e\n\u003cdiv style=\"position: relative\"\u003e\n\u003cdiv class=\"title-normal-1-text-border\" style=\"border: 1px solid #ffffff; box-sizing: border-box; height: 199%; left: 0; position: absolute; top: 0; transform: scale(0.5); transform-origin: 0 0; width: 199%\"\u003e \u003c/div\u003e\n\u003cdiv class=\"cms-cke-widget-title-wrap title-normal-1-text\" style=\"color: #ffffff; display: inline-block; line-height: 26px; padding: 1px 12px; position: relative; text-align: center; word-break: break-all\"\u003e\n\u003cp\u003e尘卷风与龙卷风\u003c/p\u003e\n\u003cp\u003e二者破坏力悬殊\u003c/p\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cp data-source=\"cke\"\u003e专家提到，“尘卷风”和“龙卷风”虽仅一字之差，但不是一回事。特别是破坏力方面，差距到底有多悬殊呢？\u003c/p\u003e\n\u003c!--VIDEO_1--\u003e\u003cspan style=\"text-align: center;font-size: 13px;color: rgb(136, 136, 136); line-height: 14px;margin-bottom: 22px;margin-top: 8px; display: block;\"\u003e\u003c/span\u003e\n\u003cp data-source=\"cke\"\u003e从外形上看，尘卷风和龙卷风都呈现旋转的涡旋状，很容易让人混淆，但二者的本质和威力截然不同。气象专家介绍：\u003c/p\u003e\n\u003cul data-source=\"cke\"\u003e\n\u003cli data-source=\"cke\"\u003e\u003cspan class=\"color-0070c0\" data-source=\"cke\"\u003e\u003cstrong data-source=\"cke\"\u003e尘卷风\u003c/strong\u003e\u003c/span\u003e是地面受局部强烈增温，在近地面气层中产生的一种尺度很小的旋风，可以把尘土和一些细小物体卷扬到空中，形成一个小尘柱。\u003c/li\u003e\n\u003cli data-source=\"cke\"\u003e\u003cspan class=\"color-0070c0\" data-source=\"cke\"\u003e\u003cstrong data-source=\"cke\"\u003e龙卷风\u003c/strong\u003e\u003c/span\u003e是一种强烈的、小范围的空气涡旋，是由雷暴云底伸展至地面的漏斗状云产生的强烈的旋风，属于强对流灾害天气。\u003c/li\u003e\n\u003c!--MID_AD_2--\u003e\u003c!--EOP_2--\u003e\u003c/ul\u003e\u003c!--PARAGRAPH_2--\u003e\n\u003cp\u003e\u003c!--IMG_2--\u003e\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e在破坏力方面，两者的差距更是一目了然。\u003c/p\u003e\n\u003cul data-source=\"cke\"\u003e\n\u003cli data-source=\"cke\"\u003e\u003cstrong data-source=\"cke\"\u003e\u003cspan class=\"color-0070c0\" data-source=\"cke\"\u003e尘卷风\u003c/span\u003e\u003c/strong\u003e直径通常只有几米到十几米，持续时间不过几分钟，容易造成帐篷掀翻、杂物卷起等轻微损失。\u003c/li\u003e\n\u003cli data-source=\"cke\"\u003e而\u003cstrong data-source=\"cke\"\u003e\u003cspan class=\"color-0070c0\" data-source=\"cke\"\u003e龙卷风\u003c/span\u003e\u003c/strong\u003e的移动速度极快，风速可达每秒100米以上，相当于12级台风的3倍，能轻易摧毁房屋、掀翻车辆，甚至将重物卷至高空。\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003c!--IMG_3--\u003e\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e此外，两者的出现场景也有明显区别。尘卷风多发生在晴天、空气干燥的开阔区域；而龙卷风常伴随雷暴、暴雨等强对流天气，出现在冷暖空气交汇频繁的平原地带。\u003c/p\u003e\n\u003cdiv class=\"cms-cke-widget-title-normal-1 cms-cke-widget-title-tpl cms-cke-widget-title-wrapper cms-cke-widget-tpl\" data-key=\"title-normal-1\" data-reactroot=\"\" style=\"align-items: center; box-sizing: border-box; display: flex; font-size: 19px; font-weight: bold; justify-content: center; margin-bottom: 20px; margin-top: 28px; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-title-container\" style=\"background-color: #001966; display: inline-block; margin-top: 4px; padding: 2px; position: relative; z-index: 9\"\u003e\n\u003cdiv class=\"out\" style=\"border: 1px solid #001966; box-sizing: border-box; display: inline-block; height: 100%; left: 4px; position: absolute; top: -4px; width: 100%\"\u003e \u003c/div\u003e\n\u003cdiv style=\"position: relative\"\u003e\n\u003cdiv class=\"title-normal-1-text-border\" style=\"border: 1px solid #ffffff; box-sizing: border-box; height: 199%; left: 0; position: absolute; top: 0; transform: scale(0.5); transform-origin: 0 0; width: 199%\"\u003e \u003c/div\u003e\n\u003cdiv class=\"cms-cke-widget-title-wrap title-normal-1-text\" style=\"color: #ffffff; display: inline-block; line-height: 26px; padding: 1px 12px; position: relative; text-align: center; word-break: break-all\"\u003e\n\u003cp\u003e龙卷风发生时间和区域\u003c/p\u003e\n\u003cp\u003e有明显规律\u003c/p\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cp data-source=\"cke\"\u003e专家介绍，真正的龙卷风作为极端灾害性天气，其发生时间和区域有明显规律。我国哪些地方是龙卷风高发区？遭遇龙卷风时又该如何科学避险呢？\u003c/p\u003e\n\u003c!--VIDEO_2--\u003e\u003cspan style=\"text-align: center;font-size: 13px;color: rgb(136, 136, 136); line-height: 14px;margin-bottom: 22px;margin-top: 8px; display: block;\"\u003e\u003c/span\u003e\n\u003cdiv class=\"cms-cke-widget-title-normal-3 cms-cke-widget-title-tpl cms-cke-widget-title-wrapper cms-cke-widget-tpl\" data-key=\"title-normal-3\" data-reactroot=\"\" style=\"align-items: center; box-sizing: border-box; display: flex; font-size: 19px; font-weight: bold; justify-content: flex-start; margin-bottom: 26px; margin-top: 28px; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-title-container\" style=\"display: inline-block; position: relative; z-index: 9\"\u003e\n\u003csection class=\"icon\" style=\"background-image: url(https://inews.gtimg.com/om_bt/OX7Z_nbbTaKtViCWODDbOU1wckRuvY_TA8hQbw9qZcZmIAA/0); background-position: center; background-repeat: no-repeat; background-size: cover; display: inline-block; height: 48px; left: 0px; margin-right: 4px; position: absolute; top: -5px; width: 48px\" data-no-dark=\"true\"\u003e \u003c/section\u003e\n\u003cdiv class=\"cms-cke-widget-title-wrap title-normal-3-text\" style=\"color: #0d141e; display: inline-block; line-height: 26px; min-width: 4px; padding: 1px 12px 1px 21px; position: relative; text-align: left; top: 9px; word-break: break-all\"\u003e\n\u003cp\u003e龙卷风：春夏为主发季午后为高发时段\u003c/p\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cp data-source=\"cke\"\u003e数据显示，龙卷风的发生具有显著的季节和时段特征。在我国，春夏为龙卷风多发季，发生龙卷风数量占全年的90%以上，其中7月占比最高，将近三成，这与春夏季节冷暖空气交汇频繁、大气对流活动强烈密切相关。龙卷风在一天中的任何时间都可能发生，但以午后发生最多，下午三点至四点为高峰时段。\u003c!--MID_AD_3--\u003e\u003c!--EOP_3--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_3--\u003e\n\u003cp\u003e\u003c!--IMG_4--\u003e\u003c/p\u003e\n\u003cdiv class=\"cms-cke-widget-title-normal-3 cms-cke-widget-title-tpl cms-cke-widget-title-wrapper cms-cke-widget-tpl\" data-key=\"title-normal-3\" data-reactroot=\"\" style=\"align-items: center; box-sizing: border-box; display: flex; font-size: 19px; font-weight: bold; justify-content: flex-start; margin-bottom: 26px; margin-top: 28px; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-title-container\" style=\"display: inline-block; position: relative; z-index: 9\"\u003e\n\u003csection class=\"icon\" style=\"background-image: url(https://inews.gtimg.com/om_bt/OX7Z_nbbTaKtViCWODDbOU1wckRuvY_TA8hQbw9qZcZmIAA/0); background-position: center; background-repeat: no-repeat; background-size: cover; display: inline-block; height: 48px; left: 0px; margin-right: 4px; position: absolute; top: -5px; width: 48px\" data-no-dark=\"true\"\u003e \u003c/section\u003e\n\u003cdiv class=\"cms-cke-widget-title-wrap title-normal-3-text\" style=\"color: #0d141e; display: inline-block; line-height: 26px; min-width: 4px; padding: 1px 12px 1px 21px; position: relative; text-align: left; top: 9px; word-break: break-all\"\u003e\n\u003cp\u003e1961年至今成都未观测到龙卷风\u003c/p\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cp data-source=\"cke\"\u003e从地域上看，我国的龙卷风多发生在中东部地形相对平坦的平原地区，江苏、广东、内蒙古、湖北、安徽等为多发区域。1961年至今的气象数据统计显示，四川成都未观测到龙卷风天气，主要原因是成都位于\u003c!--SECURE_LINK_BEGIN_0--\u003e四川盆地\u003c!--SECURE_LINK_END_0--\u003e西部，夹在两山之间，夏季虽然对流天气强盛，但近地层风弱，风垂直切变较小，因此不利于龙卷风产生。\u003c!--MID_AD_4--\u003e\u003c!--EOP_4--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_4--\u003e\n\u003cp data-source=\"cke\"\u003e专家提醒，\u003cstrong data-source=\"cke\"\u003e遭遇龙卷风时，需遵循“就近、就低、避险”原则：若在室内，应立即躲进地下室或坚固建筑的核心区域，远离窗户、外墙和玻璃门；若在户外，切勿在汽车内躲避，应迅速寻找低洼地段，护住头部和颈部。\u003c/strong\u003e\u003c/p\u003e\n\n\n\n\u003cstyle\u003e.rich_media_content{--news-tabel-th-night-color: #444444;--news-font-day-color: #333;--news-font-night-color: #d9d9d9;--news-bottom-distance: 22px}.rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}.rich_media_content .qn-editor-copy p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:unset;line-height:unset;margin-bottom:unset;word-wrap:unset}.rich_media_content{color:var(--news-font-day-color);font-size:18px}@media(prefers-color-scheme:dark){body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content .qn-editor-copy p:not([data-exeditor-arbitrary-box=image-box]):not(.qn-editor-copy){letter-spacing:unset;line-height:unset;margin-bottom:unset;word-wrap:unset}body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content{color:var(--news-font-night-color)}}.data_color_scheme_dark .rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}.data_color_scheme_dark .rich_media_content .qn-editor-copy p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:unset;line-height:unset;margin-bottom:unset;word-wrap:unset}.data_color_scheme_dark .rich_media_content{color:var(--news-font-night-color)}.data_color_scheme_dark .rich_media_content{font-size:18px}.rich_media_content p[data-exeditor-arbitrary-box=image-box]{margin-bottom:11px}.rich_media_content\u003ediv:not(.qnt-video),.rich_media_content\u003esection{margin-bottom:var(--news-bottom-distance)}.rich_media_content hr{margin-bottom:var(--news-bottom-distance)}.rich_media_content .link_list{margin:0;margin-top:20px;min-height:0!important}.rich_media_content blockquote{background:#f9f9f9;border-left:6px solid #ccc;margin:1.5em 10px;padding:.5em 10px}.rich_media_content blockquote p{margin-bottom:0!important}.data_color_scheme_dark .rich_media_content blockquote{background:#323232}@media(prefers-color-scheme:dark){body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content blockquote{background:#323232}}.rich_media_content ol[data-ex-list]{--ol-start: 1;--ol-list-style-type: decimal;list-style-type:none;counter-reset:olCounter calc(var(--ol-start,1) - 1);position:relative}.rich_media_content ol[data-ex-list]\u003eli\u003e:first-child::before{content:counter(olCounter,var(--ol-list-style-type)) '. 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