Estimations of Water Volume and External Loading Based on DYRESM Hydrodynamic Model at Lake Dianchi
نویسندگان
چکیده
There are many rivers flowing from complex paths into Lake Dianchi. At present, there is a lack of inflow and water quality monitoring data for some rivers, resulting in limited accuracy statistical results regarding volume external loading estimations. In this study, we used DYRESM to estimate the entering Waihai Dianchi 2007 2019 without historical hydrological observation data. Then, combined information with monthly calculate annual loading. Our showed that: (1) could effectively capture extreme changes level at Waihai, showing its reliable applicability (2) The average was about 6.69 × 108 m3. fitting relationship between river precipitation significant on scale (r = 0.74), higher inner-annual coefficient them 0.98), thus suggesting that caused inflows main source Waihai. (3) From 2010, loadings remained high level. They decreased 2445.44 t (total nitrogen, TN) 106.53 phosphorus, TP) due followed drought 2011. (4) had variation characteristics. contribution rates TN TP rainy season were 63% 67% respectively. (5) Panlong River, Daqing Jinjia Xinbaoxiang Cailian River Hai rivers. Their accounted 81.3% (TN) 80.3% (TP) total inputs. (6) have gradually reduced has continually improved. However, Pearson analysis parameters not significantly correlated their corresponding indicating might be other factors influencing quality. (7) internal release loads estimated 7.6% 8.9% respectively, reductions both should considered order improve
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ژورنال
عنوان ژورنال: Water
سال: 2022
ISSN: ['2073-4441']
DOI: https://doi.org/10.3390/w14182832