早春二月,大地初醒,春意漸濃,但在中國(guó)的北疆,春天總是姍姍來遲,卻也因此造就了春寒料峭中的一大奇景——吉林霧凇。這份獨(dú)特的自然饋贈(zèng),讓北國(guó)的春天別具韻味。
“忽如一夜春風(fēng)來,千樹萬樹梨花開?!碑?dāng)?shù)谝豢|晨光穿透薄霧灑向吉林省吉林市的松花江畔,古人筆下的霧凇美景隨之躍入眼簾:江上霧氣裊裊,兩岸戴玉披銀,宛若傳說中的水晶宮;雪柳吐蕊,松綻新菊,朵朵瓊花在枝頭競(jìng)相綻放;微風(fēng)吹過,凇花飄落,如詩如畫。
低頭是溫柔流水,抬頭是美麗霧凇,遠(yuǎn)望是林海雪原,作為中國(guó)四大自然奇觀之一的吉林霧凇,每年冬春季吸引著大批游客慕名而來。長(zhǎng)堤旁、街路邊,市民和游客在美景中散步、拍照,爭(zhēng)相記錄這美好的瞬間。
霧凇通稱“樹掛”,分為粒狀霧凇和晶狀霧凇。粒狀霧凇是過冷卻霧滴碰到冷的物體后迅速凍結(jié)成粒狀小冰塊,結(jié)構(gòu)較緊密,也稱“硬凇”;晶狀霧凇是由過冷卻霧滴凝華而成,結(jié)構(gòu)較松散,稍有震動(dòng)就會(huì)脫落,也稱“軟凇”。雖然形成于寒冷的環(huán)境,但霧凇并不只出現(xiàn)在北方地區(qū)。與中低緯度地區(qū)的高山霧凇相比,吉林霧凇霧滴直徑小,凝華的情況占比高,多為晶狀霧凇,呈現(xiàn)毛茸茸的形態(tài),似雪非雪,似霜非霜。
有人將霧凇的形成過程比喻為一場(chǎng)精妙絕倫的自然魔術(shù),這是因?yàn)殪F凇的形成需要特定的自然條件:充足的水汽、極低的氣溫,以及恰到好處的風(fēng)速。松花江的特殊地理環(huán)境為吉林霧凇的形成提供了得天獨(dú)厚的條件。吉林市冬季嚴(yán)寒,清晨氣溫常降到零下20攝氏度以下,松花江穿城而過,受上游水電站影響,江水溫度可達(dá)4攝氏度,巨大的溫差使水面騰起濃霧,為霧凇形成提供了豐沛的水汽。當(dāng)暖濕氣流遇到極寒的空氣,便呈現(xiàn)出“一江寒水清,兩岸瓊花凝”的壯觀景象。
霧凇雖美,卻轉(zhuǎn)瞬即逝。待到太陽升起,氣溫回升,這些冰晶便會(huì)悄然消融,化作甘露滋潤(rùn)大地,滋養(yǎng)著萬物生長(zhǎng),因此當(dāng)?shù)匾灿辛恕耙箍挫F,晨看掛,待到近午賞落花”的觀賞指南。于是,不管是天色未明還是晨曦初露抑或陽光普照時(shí),一波又一波的游客來到松江岸畔,從霧氣迷蒙到冰光交織再到漫天飛花的驚艷“變裝”中,探尋一日觀三景的別樣體驗(yàn)。此外,游客還可乘坐游船,以別樣的視角欣賞兩岸凇景,感受霧凇之都的獨(dú)特魅力。
更令人驚喜的是,吉林霧凇不僅在冬天現(xiàn)身,還借力“黑科技”形成了四季景觀。當(dāng)?shù)卦诒鄙剿募驹揭盎﹫?chǎng)建設(shè)了中國(guó)首個(gè)室內(nèi)霧凇實(shí)驗(yàn)室,打造中國(guó)室內(nèi)霧凇第一長(zhǎng)廊,通過科技手段,模擬與冬季室外相似的溫壓濕風(fēng)和霧滴直徑大小等,在室內(nèi)環(huán)境下成功結(jié)出霧凇。自此,看霧凇不再是冬日限定。
吉林霧凇出現(xiàn)的季節(jié)一般從每年的11月下旬開始,到次年的3月上旬結(jié)束。借助霧凇出現(xiàn)頻次高、厚度大、持續(xù)時(shí)間長(zhǎng)這一良好的自然資源,近年來,吉林市打造了“霧凇天下秀”等IP品牌集群,推出江、船、島、室內(nèi)、雪場(chǎng)“賞凇五大場(chǎng)景”,游客可選擇霧凇第一江畔、霧凇第一游船、霧凇島、室內(nèi)霧凇第一長(zhǎng)廊、霧凇第一山巔多個(gè)地點(diǎn)觀賞這一氣象奇觀。
與此同時(shí),與霧凇相關(guān)的節(jié)慶活動(dòng)也廣泛開展。吉林霧凇冰雪節(jié)已連續(xù)舉辦30屆,成為中國(guó)十大最具影響力的冰雪旅游節(jié)慶活動(dòng)之一。2024年11月23日,第30屆吉林霧凇冰雪節(jié)開幕,活動(dòng)持續(xù)至2025年3月。吉林霧凇冰雪節(jié)吸引著數(shù)以萬計(jì)的游客不遠(yuǎn)千里而來。據(jù)統(tǒng)計(jì),僅2024年冬季,吉林市霧凇旅游相關(guān)產(chǎn)業(yè)就創(chuàng)造了超過10億元的經(jīng)濟(jì)效益,帶動(dòng)就業(yè)人數(shù)超過2萬人。
霧凇旅游不僅帶來了經(jīng)濟(jì)效益,更促進(jìn)了吉林冰雪文化的傳承與創(chuàng)新。以霧凇為主題的攝影大賽、特色餐飲及文創(chuàng)產(chǎn)品等深受游客青睞,冰雕制作、雪地足球、雪地摩托等特色活動(dòng)讓游客玩得盡興……白雪皚皚的大地上,冰雪旅游玩出了新花樣,涌動(dòng)著新潮流。
霧漫卷,凇如畫,人成景,一場(chǎng)冰雪盛宴已然在白山松水間激情綻放。
編輯/刁艷杰
Go to Jilin for a Date with Rime
In February of early spring, the earth begins to come back to life, and spring is in the air. However in the northern borderland of China, spring always arrives late, and brings a great wonder – rime of Jilin in chilly spring. This unique gift of nature adds special charm to northern spring.
The geographical environment of the Songhua River provides advantaged conditions for the formation of rime in Jilin. Jilin City is freezing cold in winter, and its morning temperature often falls to below minus 20 degrees Celsius. The Songhua River flows through the city. Influenced by the upstream hydropower station, the river temperature can be up to four degrees Celsius. The huge temperature difference causes thick fog over the water surface, and provides abundant water vapor for the formation of rime.
With the rise of the sun and temperature, these ice crystals will melt silently, and turn into dew to nourish the earth and the growth of all living beings. Thus, the sightseeing guide of “enjoying fog in the nighttime, rime in the morning, and melting rime around noon” has appeared in the locality.
At the Beishan Four Seasons Cross-country Ski Park, there is China’s first indoor rime laboratory and first indoor rime corridor, where rime could be formed indoors by technological means. Hence, the time for watching rime is no longer limited to winter.
In general, rime in Jilin lasts from late November to early March of the following year. In recent years, Jilin City has built some IP brand clusters, including “Rime Wonder”. The Jilin International Rime Ice Snow Festival has been held for 30 consecutive years, and become one of China’s 10 most influential ice snow tourism festival events. In the winter of 2024 alone, industries relating to rime tourism created economic benefits of over RMB 1 billion in Jilin City, and facilitated the employment of over 20,000 people.