About: Freshet

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The term freshet is most commonly used to describe a spring thaw resulting from snow and ice melt in rivers located in upper North America. A spring freshet can sometimes last several weeks on large river systems, resulting in significant inundation of flood plains as the snowpack melts in the river's watershed. Freshets can occur with differing strength and duration depending upon the depth of the snowpack and the local average rates of warming temperatures. Deeper snowpacks which melt quickly can result in more severe flooding. Late spring melts allow for faster flooding; this is because the relatively longer days and higher solar angle allow for average melting temperatures to be reached quickly, causing snow to melt rapidly. Snowpacks at higher altitudes and in mountainous areas remain

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  • The term freshet is most commonly used to describe a spring thaw resulting from snow and ice melt in rivers located in upper North America. A spring freshet can sometimes last several weeks on large river systems, resulting in significant inundation of flood plains as the snowpack melts in the river's watershed. Freshets can occur with differing strength and duration depending upon the depth of the snowpack and the local average rates of warming temperatures. Deeper snowpacks which melt quickly can result in more severe flooding. Late spring melts allow for faster flooding; this is because the relatively longer days and higher solar angle allow for average melting temperatures to be reached quickly, causing snow to melt rapidly. Snowpacks at higher altitudes and in mountainous areas remain cold and tend to melt over a longer period of time and thus do not contribute to major flooding. Serious flooding from southern freshets are more often related to rain storms of large tropical weather systems rolling in from the South Atlantic or Gulf of Mexico, to add their powerful heating capacity to lesser snow packs. Tropically induced rainfall influenced quick melts can also affect snow cover to latitudes as far north as southern Canada, so long as the generally colder air mass is not blocking northward movement of low pressure systems. In the eastern part of the continent, annual freshets occur from the Canadian Taiga ranging along both sides of the Great Lakes then down through the heavily forested Appalachian mountain chain and St. Lawrence valley from Northern Maine and New Brunswick into barrier ranges in North Carolina and Tennessee. In the western part of the continent, freshets occur throughout the generally much higher elevations of the various west coast mountain ranges that extend southward down from Alaska even into the northern parts of Arizona and New Mexico. The term can also refer to the following: * A flood resulting from heavy rain or a spring thaw. Whereas heavy rain often causes a flash flood, a spring thaw event is generally a more incremental process, depending upon local climate and topography. * A stream, river or flood of fresh water which empties into the ocean, usually flowing through an estuary. * A small stream of fresh water, irrespective of its outflow. * A pool of fresh water, according to Samuel Johnson and followed in Thomas Sheridan's dictionary, but this might have been a misinterpretation on Johnson's part, and it is at best not a common usage. (en)
  • 春汛（英語：freshet）又稱桃花汛，指的是春季河冰融化，或是上游積雪融化導致的河水暴漲，或是中国的黄河在宁夏、内蒙古河段二、三月春季因冰凌融化形成的凌汛，這些都可能造成水災。 在中國，因其适值桃花盛开季节，故称桃花汛。 《漢書·卷二十九·溝洫志》：「來春桃華水盛，必羨溢，有填淤反壤之害。」顏師古·注：「月令『仲春之月，始雨水，桃始華』，蓋桃方華時，既有雨水，川谷冰泮，眾流猥集，波瀾盛長，故謂之桃花水耳。」唐·杜甫《南征》詩：「春岸桃花水，雲帆楓樹林。」宋·吳文英·《水龍吟·夜分溪館漁燈詞》：「怕煙江渡後，桃花又汛，宮溝上，春流緊。」 (zh)
  • Па́водок — значне підвищення водності річки в межах річного циклу, що виникає нерегулярно; утворюється під час сильних дощів чи під час відлиги. На відміну від повеней, паводки виникають нерегулярно. Значний паводок може спричинити повінь. (uk)
  • Па́водок — фаза водного режима реки, которая может многократно повторяться в различные сезоны года, характеризуется интенсивным (обычно кратковременным) увеличением расходов и уровней воды и вызывается дождями или обильным снеготаянием во время оттепелей. Периодически паводки не повторяются, и в этом их отличие от половодья. Продолжительность паводка от нескольких долей часа до нескольких суток. Среднемесячные расходы в период половодья и паводков больше среднегодовых. В отличие от половодья паводок может возникать в любое время года. Значительный паводок может вызвать наводнение. В процессе перемещения паводка по реке образуется паводочная волна. (ru)
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  • 春汛（英語：freshet）又稱桃花汛，指的是春季河冰融化，或是上游積雪融化導致的河水暴漲，或是中国的黄河在宁夏、内蒙古河段二、三月春季因冰凌融化形成的凌汛，這些都可能造成水災。 在中國，因其适值桃花盛开季节，故称桃花汛。 《漢書·卷二十九·溝洫志》：「來春桃華水盛，必羨溢，有填淤反壤之害。」顏師古·注：「月令『仲春之月，始雨水，桃始華』，蓋桃方華時，既有雨水，川谷冰泮，眾流猥集，波瀾盛長，故謂之桃花水耳。」唐·杜甫《南征》詩：「春岸桃花水，雲帆楓樹林。」宋·吳文英·《水龍吟·夜分溪館漁燈詞》：「怕煙江渡後，桃花又汛，宮溝上，春流緊。」 (zh)
  • Па́водок — значне підвищення водності річки в межах річного циклу, що виникає нерегулярно; утворюється під час сильних дощів чи під час відлиги. На відміну від повеней, паводки виникають нерегулярно. Значний паводок може спричинити повінь. (uk)
  • The term freshet is most commonly used to describe a spring thaw resulting from snow and ice melt in rivers located in upper North America. A spring freshet can sometimes last several weeks on large river systems, resulting in significant inundation of flood plains as the snowpack melts in the river's watershed. Freshets can occur with differing strength and duration depending upon the depth of the snowpack and the local average rates of warming temperatures. Deeper snowpacks which melt quickly can result in more severe flooding. Late spring melts allow for faster flooding; this is because the relatively longer days and higher solar angle allow for average melting temperatures to be reached quickly, causing snow to melt rapidly. Snowpacks at higher altitudes and in mountainous areas remain (en)
  • Па́водок — фаза водного режима реки, которая может многократно повторяться в различные сезоны года, характеризуется интенсивным (обычно кратковременным) увеличением расходов и уровней воды и вызывается дождями или обильным снеготаянием во время оттепелей. Периодически паводки не повторяются, и в этом их отличие от половодья. Продолжительность паводка от нескольких долей часа до нескольких суток. Среднемесячные расходы в период половодья и паводков больше среднегодовых. (ru)
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  • Freshet (en)
  • Паводок (ru)
  • Паводок (uk)
  • 春汛 (zh)
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