{"id":551,"date":"2005-12-14T06:00:00","date_gmt":"2005-12-13T22:00:00","guid":{"rendered":"http:\/\/www.weather.org.hk\/blog\/?p=551"},"modified":"2010-11-11T18:29:06","modified_gmt":"2010-11-11T10:29:06","slug":"%e7%95%99%e6%84%8f%e6%b0%a3%e5%a3%93%e8%ae%8a%e5%8c%96","status":"publish","type":"post","link":"https:\/\/www.weather.org.hk\/news\/%e7%95%99%e6%84%8f%e6%b0%a3%e5%a3%93%e8%ae%8a%e5%8c%96\/","title":{"rendered":"\u7559\u610f\u6c23\u58d3\u8b8a\u5316"},"content":{"rendered":"

\t\t\t\t\t\t\t\t\t\u4e00\u822c\u4eba\u53ea\u95dc\u5fc3\u6eab\u5ea6\uff08\u6216\u8005\u5305\u62ec\u6fd5\u5ea6\uff09\uff0c\u6c23\u58d3\u5c0d\u4ed6\u5011\u4f86\u8aaa\u662f\u4e00\u500b\u76f8\u7576\u964c\u751f\u7684\u540d\u8a5e\u3002<\/p>\n

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<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"

一般人只關心溫度（或者包括濕度），氣壓對他們來說是一個相當陌生的名詞。 氣壓是天氣變化的一個重要指標。夏天颱風迫近，香港的氣壓會下降。冬天寒潮南下，香港的氣壓會上升。 簡單而言，氣壓就是我們頭上空氣的重量。氣壓的十進制單位是百帕斯卡（hecto-Pascal），簡稱百帕（hPa）。今早氣壓為1026百帕，換算後等於每平方吋14.9磅。 有朋友問是否氣壓越高，溫度越低。氣壓高是因為空氣下沉的緣故，但有兩個情況：第一個情況是冬天受冷空氣影響，由於下沉的是冷空氣，因此天氣變得寒冷；第二個情況是夏天受暖空氣影響，由於下沉的是暖空氣，因此天氣變得酷熱。 冬天天文台利用氣壓變化預測寒潮抵達香港的時間及強度，容後再談。<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[4],"tags":[],"class_list":["post-551","post","type-post","status-publish","format-standard","hentry","category-4"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts\/551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/comments?post=551"}],"version-history":[{"count":1,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts\/551\/revisions"}],"predecessor-version":[{"id":767,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/posts\/551\/revisions\/767"}],"wp:attachment":[{"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/media?parent=551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/categories?post=551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.weather.org.hk\/news\/wp-json\/wp\/v2\/tags?post=551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}