Seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river: a case study from the Bukhan River basin, South Korea

Seasonal water temperature variations in response to air temperature and precipitation were examined in a forested headwater stream (Yeonyeop stream, YS) and an urban river (Bukhan River, BR) within the same basin. In both sites, precipitation and air/water temperatures were monitored from April to...

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Main Authors: Sooyoun Nam, Su-Jin Jang, Kun-Woo Chun, Jae Uk Lee, Suk Woo Kim
Format: Article
Language:English
Published: Taylor & Francis Group 2021-01-01
Series:Forest Science and Technology
Subjects:
Online Access:http://dx.doi.org/10.1080/21580103.2021.1882589
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author Sooyoun Nam
Su-Jin Jang
Kun-Woo Chun
Jae Uk Lee
Suk Woo Kim
author_facet Sooyoun Nam
Su-Jin Jang
Kun-Woo Chun
Jae Uk Lee
Suk Woo Kim
author_sort Sooyoun Nam
collection DOAJ
description Seasonal water temperature variations in response to air temperature and precipitation were examined in a forested headwater stream (Yeonyeop stream, YS) and an urban river (Bukhan River, BR) within the same basin. In both sites, precipitation and air/water temperatures were monitored from April to November of 2017 and 2018. The differences between air and water temperatures were 4–6 °C higher in the YS than the BR during the summer and fall seasons. Air temperature and precipitation exhibited seasonal differences with no apparent spatial variations; however, water temperature alone varied both seasonally and spatially. Mean temperature elasticity in the YS was greater than that in the BR, whereas mean precipitation elasticity in the YS was lower than that in the BR. Additionally, temperature elasticity increased with water temperature, whereas precipitation elasticity increased with decreases in water temperature, albeit only during the summer. From an elasticity standpoint, our findings suggest that water temperature in a forested headwater stream is more sensitive to air temperature changes than that in an urban river.
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spelling doaj.art-51a2218d04d848dcb4a4baad9b96e8552022-12-21T22:49:15ZengTaylor & Francis GroupForest Science and Technology2158-01032158-07152021-01-01171465510.1080/21580103.2021.18825891882589Seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river: a case study from the Bukhan River basin, South KoreaSooyoun Nam0Su-Jin Jang1Kun-Woo Chun2Jae Uk Lee3Suk Woo Kim4Institute of Forest Science, Kangwon National UniversityInstitute of Forest Science, Kangwon National UniversityDivision of Forest Science, Kangwon National UniversityDepartment of Forestry and Environmental Systems, Graduate School, Kangwon National UniversityDivision of Forest Science, Kangwon National UniversitySeasonal water temperature variations in response to air temperature and precipitation were examined in a forested headwater stream (Yeonyeop stream, YS) and an urban river (Bukhan River, BR) within the same basin. In both sites, precipitation and air/water temperatures were monitored from April to November of 2017 and 2018. The differences between air and water temperatures were 4–6 °C higher in the YS than the BR during the summer and fall seasons. Air temperature and precipitation exhibited seasonal differences with no apparent spatial variations; however, water temperature alone varied both seasonally and spatially. Mean temperature elasticity in the YS was greater than that in the BR, whereas mean precipitation elasticity in the YS was lower than that in the BR. Additionally, temperature elasticity increased with water temperature, whereas precipitation elasticity increased with decreases in water temperature, albeit only during the summer. From an elasticity standpoint, our findings suggest that water temperature in a forested headwater stream is more sensitive to air temperature changes than that in an urban river.http://dx.doi.org/10.1080/21580103.2021.1882589water temperaturestreamrivertemperature elasticityprecipitation elasticity
spellingShingle Sooyoun Nam
Su-Jin Jang
Kun-Woo Chun
Jae Uk Lee
Suk Woo Kim
Seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river: a case study from the Bukhan River basin, South Korea
Forest Science and Technology
water temperature
stream
river
temperature elasticity
precipitation elasticity
title Seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river: a case study from the Bukhan River basin, South Korea
title_full Seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river: a case study from the Bukhan River basin, South Korea
title_fullStr Seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river: a case study from the Bukhan River basin, South Korea
title_full_unstemmed Seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river: a case study from the Bukhan River basin, South Korea
title_short Seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river: a case study from the Bukhan River basin, South Korea
title_sort seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river a case study from the bukhan river basin south korea
topic water temperature
stream
river
temperature elasticity
precipitation elasticity
url http://dx.doi.org/10.1080/21580103.2021.1882589
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