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¿À¸®°ÇÁÖ¸³´ëÇб³(Oregon State University) °ø°ú´ëÇÐÀº °³¹ßÇÑ °Íº¸´Ù ÃÑüÀûÀÎ °øÀ¯¸¦ ÅëÇØ ´«¼Ó¿¡ ¾ó¸¶³ª ¸¹Àº »ç¶÷µéÀÌ ¾ó¸¶³ª ¿À·¡ º¸°üµÉ ¼ö ÀÖ´ÂÁö¸¦ ³ª´©´Â °ÍÀÔ´Ï´Ù.  [»çÁøÁ¦°ø = ¿À¸®°ÇÁÖ¸³´ëÇб³(¿À·¹°ïÁÖ¸³´ëÇб³)]

¿À¸®°ÇÁÖ¸³´ëÇб³(Oregon State University) °ø°ú´ëÇÐÀº °³¹ßÇÑ °Íº¸´Ù ÃÑüÀûÀÎ °øÀ¯¸¦ ÅëÇØ ´«¼Ó¿¡ ¾ó¸¶³ª ¸¹Àº »ç¶÷µéÀÌ ¾ó¸¶³ª ¿À·¡ º¸°üµÉ ¼ö ÀÖ´ÂÁö¸¦ ³ª´©´Â °ÍÀÔ´Ï´Ù. [»çÁøÁ¦°ø = ¿À¸®°ÇÁÖ¸³´ëÇб³(¿À·¹°ïÁÖ¸³´ëÇб³)]


´«À¸·Î µ¤¾îÁÖ´Â µéÆÇÀº ½ºÅ°¿Í ½ä¸Å¸¦ Ÿ´Â »ç¶÷µé¿¡°Ô Àç¹ÌÀÖ´Â Á¶¸³, °Ç±â ½Ã ½Ä¼ö¿Í °ü°³, ±âŸ »ç¿ëÀÚ·Î ¹°À» Á¦°øÇϱâ À§ÇØ ¾ß¿Ü µÚ »ý¼º ÅÊÅ©¿Í °°Àº ¿ªÇÒÀ» ¼öÇàÇÕ´Ï´Ù. ±×·¯³ª ÀÌ·¯ÇÑ ´« ¼Ó¿¡´Â ¾ó¸¶³ª ¸¹Àº ¾çÀÌ ¾ó¸¶³ª ¿À·¡ º¸°üµÉ ¼ö ÀÖ½À´Ï±î?


¿À¸®°ÇÁÖ¸³´ëÇб³(Oregon State University) °ø°ú´ëÇÐÀº °³¹ßÇÑ °Íº¸´Ù ÃÑüÀûÀÎ °øÀ¯¸¦ À§ÇØ ¾à¼ÓÇÕ´Ï´Ù.


¹è¿­ ½É¸®(David Hill) ¿À¸®°ÇÁÖ¸³´ëÇб³ ¼Ò¼ÓÀº "¹°ÀÚ´Â °ø±Þ°ú ¿ä±¸¸¦ ¸ÂÃß±â À§ÇØ °ü¸® ÁöÇ¥¼ö ¸¹Àº, ÁöÇÏ ¼ö ÀÖµµ·Ï Á¦µµ µî ´Ù¾çÇÑ ¿ëµµ ¿É¼ÇÀ» °í·ÁÇÏ´Â °æÇâÀÌ ÀÖ´Ù"¸ç "´«¿¡ ¾î¶»°Ô ¹°ÀÌ ÀÖ´ÂÁö ÆľÇÇÕ´Ï´Ù. Àç´ÉÀÌ ÀÖ¾úÀ¸¸é ÁÁ°Ú´Ù°í °èȹÀ» ¼¼¿ï ¼ö ÀÖ´Ù°í ¸»Çß½À´Ï´Ù.


¾Þ±Û¸® ±³¼ö¿Í µ¿ÀÛ³ª ¾Æ¶ó°ï(Christina Aragon) ¿¬±¸°úÁ¤ ¿¬±¸¿øÀÇ ¿¬±¸´Â ¾à 40³â µ¿¾ÈÀÇ ½º³ë¿ìÆÑ µ¥ÀÌÅ͸¦ Á¶»çÇß½À´Ï´Ù, »õ·Î¿î ÁöÇ¥ÀÎ '´« ¼Ó ¹° ÀúÀå·®(Snow Water Storage)'À» ÅëÇØ ¹Ì±¹ 48°³ ÁÖ »ê¾Ç ¼­¹ö ÆÑ(Mountain Snowpack)¿¡ ¸Å³â ÀúÀåµÇ´Â ¹°ÀÇ ¾çÀÌ 22% ¼³¸íÇÏ´Â °ÍÀ» È®ÀÎÇÑ´Ù.


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Èú ±³¼ö´Â "´« ÀÚ¿øÀ» ¼³¸íÇϰųª Á¤·®È­ÇÏ´Â ¹æ¹ý¿¡´Â ¿©·¯ °¡Áö°¡ ÀÖÁö¸¸ ÀüÅëÀûÀÎ ÃøÁ¤¹ý °¡¿îµ¥ ÀϺδ Á¡Á¡ ´õ ¼³¸íÇÏ´Â µ¥ ¾î·Á¿òÀ» °Þ°í ÀÖ´Ù"¸ç "¿¬±¸ÁøÀº ´«ÀÌ Á¡Á¡ ´õ °£ÇæÀûÀ¸·Î ³»¸®°Å³ª ºñ·Î ¹Ù²ð °æ¿ì ´õ ±íÀÌ ÀÌÇØÇÏ°í ´õ ¸¹Àº Àû¿ë °¡´É¼ºÀ» °¡Áø ´«ÀÇ ¹°ÀúÀå ´É·ÂÀ» ¼³¸íÇÏ´Â »õ·Î¿î ¹æ¹ýÀ» Á¦½ÃÇß´Ù"°í °­Á¶Çß´Ù.


SCI±Þ ±¹Á¦ ÇмúÁöÀÎ ¡º¼ö¹®Çаú Áö±¸ ½Ã½ºÅÛ °úÇÐ(Hydrology and Earth System Sciences)¡»¿¡ °ÔÀçµÈ À̹ø ¿¬±¸´Â ÀϹÝÀûÀ¸·Î »ç¿ëµÇ´Â Àû¼³·®(Snow Water Equivalent) ÃøÁ¤°ªÀ» ±â¹ÝÀ¸·Î Çϸç, ¿ë±â¿¡ ½×ÀÎ ´«ÀÌ ³ìÀº ÈÄ ¾ó¸¶³ª ¸¹Àº ¹°ÀÌ ³²¾Æ ÀÖ´ÂÁö¸¦ º¸¿©ÁØ´Ù.


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[¿ø¹®º¸±â]


Oregon State Researchers Take Deep Dive Into How Much Water Is Stored In Snow

 


CORVALLIS, Ore. – A heavy snowpack is fun for skiers and sledders, and it also acts like an open-air storage tank that melts away to provide water for drinking, irrigation and other purposes during dry months.


But exactly how much water is held in snowpacks, and for how long?


That information, critical to water managers around the globe, has taken on new clarity thanks to a new, more holistic calculation technique developed by researchers in the Oregon State University College of Engineering.


¡°Water managers tend to consider a portfolio of infrastructure options – surface water reservoirs, groundwater recharge programs, etc. – to match supply to demand,¡± OSU¡¯s David Hill said. ¡°Increased understanding of how much water is in snow should allow them to make long-term planning decisions for how to adjust that portfolio.¡±


The study by Hill, a professor of civil engineering, and doctoral student Christina Aragon looked at nearly four decades of snowpack data. Through their new metric, which they call snow water storage, they identified a 22% drop in how much water is held annually in the mountain snowpacks of the lower 48 states.


¡°Unlike other widely used metrics that capture snow variables at a single point in time, like maximum snow water equivalent, or describe snow characteristics in terms of time, such as length of snow season, snow water storage is applicable at numerous time and space scales,¡± Hill said. ¡°It¡¯s really just a cumulative sum, not a maximum value; it¡¯s like adding up the number of miles you drive in a given year, rather than just thinking about the 500 you did on one day for your road trip.¡±


In addition to introducing a better tool for gauging how much water is in snowpacks over periods of time, the findings are important because of what the new metric revealed about mountain snowpacks, which play an outsized role in the nation¡¯s water storage.


Hill and Aragon note that of all the water stored in the form of snow in the lower 48, 72% of it is in the mountains, though mountains cover just 16% of the total area.


¡°There are many ways to describe or quantify our snow resources, but some of the traditional measures, such as the April 1st snowpack, increasingly do not tell the full story,¡± Hill said. ¡°We present a new way of describing snow¡¯s water storage ability that adds deeper understanding and has more applicability in cases where our snowfall is increasingly intermittent or, regrettably, turning to rain.¡±


The researchers¡¯ work, presented in a paper published in Hydrology and Earth System Sciences, builds on a commonly used measurement known as snow water equivalent; as its name implies, it¡¯s how much water is left in a container after the snow that was placed in it melts.


¡°By considering the amount of water held in the snowpack and the amount of time the water is stored as snow, we are able to quantify water storage in different types of snowpacks,¡± Aragon said. ¡°This includes persistent snowpacks, like we typically have at high elevations in the mountains; transient snowpacks, which are typically found at lower elevations; and snowpacks that are transitioning from persistent to transient due to climate warming.¡±


Aragon adds that because the snow water storage metric can be applied to multiple types of snowpacks, it may become increasingly valuable for monitoring and predicting water resources ¡°amidst a future of increased climate variability.¡±


Hill points out that the past several years in the lower 48 have seen a ¡°feast or famine cycle of extremes when it has come to the where and the when of our snow and rain.¡± And in general snowpacks have considerably declined over the past 10 to 20 years.


¡°That particularly matters in places like Oregon, where 15% of the state¡¯s total annual precipitation falls as snow, and our snowpack functions like a reservoir,¡± he said. ¡°It holds back winter precipitation and slowly releases it in spring and early summer. This is useful because, at those times, our rainfall has tapered off for the year, but demand for water is on the rise."


±âÈÄ°¡ µû¶æÇØÁö°í ´«ÀÌ ½×ÀÌ´Â Á¤µµ°¡ Á¡Á¡ ´õ ´Ù¾çÇØÁü¿¡ µû¶ó(2023~24³â °Ü¿ïÀÌ ÁÁÀº ¿¹) OSU¿¡¼­ °³¹ßÇÑ »õ·Î¿î ÃøÁ¤¹ý°ú °°Àº ÃøÁ¤¹ýÀº Àü ¼¼°è ´«´õ¹ÌÀÇ ÀúÀå¼Ò ÀúÀå Ãø¸éÀ» º¸´Ù °´°üÀûÀ¸·Î Á¤·®È­ÇÏ´Â µ¥ µµ¿òÀÌ µÈ´Ù°í HillÀº ¸»Çß½À´Ï´Ù.


Áö¹æ ±Ô¸ð¿¡¼­ Áö¿ª ±Ô¸ð¿¡ À̸£±â±îÁö, µµ½Ã ¹× ³ó¾÷¿ë ¹° »ç¿ëÀÚ´Â ¼ö¿ä¿Í °ø±ÞÀÇ ±ÕÇüÀ» ¸ÂÃç¾ß Çϸç, Àû¼³·®Àº °ø±Þ Ãø¸éÀÇ ½Ã±â¿¡ Å« ¿µÇâÀ» ¹ÌÄ£´Ù°í ±×´Â ÁöÀûÇÕ´Ï´Ù.


¡°¿ì¸®°¡ ¾ÕÀ¸·Î ³ª¾Æ°¡¸é¼­, °ú°Å¿¡¼­ ÇöÀç·Î ¿Å°Ü°¡¸é¼­ »ó´ëÀûÀ¸·Î ÁÁÀº ¼Ò½ÄÀº ¿¬°£ °­¼ö·®ÀÌ ±×·¸°Ô ±ØÀûÀ¸·Î º¯ÇÏÁö ¾Ê´Â °æÇâÀÌ ÀÖ´Ù´Â °ÍÀÔ´Ï´Ù.¡±¶ó°í ±×´Â ¸»Çß½À´Ï´Ù. "±×·¯³ª ¿Âµµ º¯È­´Â ´« ÀúÀå¿¡ Å« ¿µÇâÀ» ¹ÌÄ¡°í µû¶ó¼­ ¹° °¡¿ë¼º ½Ã±â¿¡µµ Å« ¿µÇâÀ» ¹ÌĨ´Ï´Ù."


ÀÌ ÀÛ¾÷¿¡ ´ëÇÑ ÀÚ±ÝÀº OSU ´ëÇпø ¿À·¹°ï º¹±Ç Çо÷ ¿ì¼ö»ó°ú ¿À·¹°ï ÁÖ ¼öÀÚ¿ø ´ëÇпø ÇÁ·Î±×·¥ µ¿Ã¢»ó¿¡¼­ ³ª¿Ô½À´Ï´Ù.


[Ãâó = ¿À¸®°ÇÁÖ¸³´ëÇб³(Oregon State University) ( https://today.oregonstate.edu/news/oregon-state-researchers-take-deep-dive-how-much-water-stored-snow ) / 2024³â 3 ¿ù 18ÀÏ]


[¿¬±¸³í¹®Ãâó = ¡º¼ö¹®Çаú Áö±¸ ½Ã½ºÅÛ °úÇÐ(Hydrology and Earth System Sciences)¡» ( https://hess.copernicus.org/articles/28/781/2024/ ) / 2024³â 2¿ù 20ÀÏÀÚ]

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