scholarly journals Development and application of a hydroclimatological stream temperature model within the Soil and Water Assessment Tool

2012 ◽  
Vol 48 (1) ◽  
Author(s):  
Darren L. Ficklin ◽  
Yuzhou Luo ◽  
Iris T. Stewart ◽  
Edwin P. Maurer
Keyword(s):  
Assessment Tool ◽  
Stream Temperature ◽  
Temperature Model ◽  
Water Assessment ◽  
Soil And Water

Optimization of linear stream temperature model parameters in the soil and water assessment tool for the continental United States

2019 ◽  
Vol 127 ◽  
pp. 125-134 ◽  
Author(s):  
Nicholas A. Giles ◽  
Meghna Babbar-Sebens ◽  
Raghavan Srinivasan ◽  
Darren L. Ficklin ◽  
Bradley Barnhart
Keyword(s):  
United States ◽  
Assessment Tool ◽  
Stream Temperature ◽  
Model Parameters ◽  
Temperature Model ◽  
Water Assessment ◽  
Soil And Water

scholarly journals Modeling Landscape Change Effects on Stream Temperature Using the Soil and Water Assessment Tool

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1143 ◽  
Author(s):  
Mamoon Mustafa ◽  
Brad Barnhart ◽  
Meghna Babbar-Sebens ◽  
Darren Ficklin
Keyword(s):  
Land Use ◽  
Radiative Forcing ◽  
Assessment Tool ◽  
Stream Temperature ◽  
Radiative Heat Exchange ◽  
Extended Model ◽  
Temperature Model ◽  
Time Step ◽  
Water Assessment ◽  
Soil And Water

Stream temperature is one of the most important factors for regulating fish behavior and habitat. Therefore, models that seek to characterize stream temperatures, and predict their changes due to landscape and climatic changes, are extremely important. In this study, we extend a mechanistic stream temperature model within the Soil and Water Assessment Tool (SWAT) by explicitly incorporating radiative flux components to more realistically account for radiative heat exchange. The extended stream temperature model is particularly useful for simulating the impacts of landscape and land use change on stream temperatures using SWAT. The extended model is tested for the Marys River, a western tributary of the Willamette River in Oregon. The results are compared with observed stream temperatures, as well as previous model estimates (without radiative components), for different spatial locations within the Marys River watershed. The results show that the radiative stream temperature model is able to simulate increased stream temperatures in agricultural sub-basins compared with forested sub-basins, reflecting observed data. However, the effect is overestimated, and more noise is generated in the radiative model due to the inclusion of highly variable radiative forcing components. The model works at a daily time step, and further research should investigate modeling at hourly timesteps to further improve the temporal resolution of the model. In addition, other watersheds should be tested to improve and validate the model in different climates, landscapes, and land use regimes.

AN EVALUATION OF BLUE WATER PREDICTION IN SOUTHERN PART OF IRAN USING THE SOIL AND WATER ASSESSMENT TOOL (SWAT)

2016 ◽  
Vol 15 (1) ◽  
pp. 175-188 ◽  
Author(s):  
Mohsen Salarpour ◽  
Milad Jajarmizadeh ◽  
Sobri Harun ◽  
Rozi Abdullah
Keyword(s):  
Assessment Tool ◽  
Blue Water ◽  
Water Assessment ◽  
Soil And Water

HYDROLOGICAL MODELING OF THE L'ANGUILLE RIVER WATERSHED USING SOIL AND WATER ASSESSMENT TOOL

2005 ◽  
Author(s):  
Vibhava Srivastava ◽  
Sreekala Bajwa ◽  
and Indrajeet Chaubey
Keyword(s):  
Hydrological Modeling ◽  
Assessment Tool ◽  
River Watershed ◽  
Water Assessment ◽  
Soil And Water

Modeling Water Quality to Improve Agricultural Practices and Land Management in a Tunisian Catchment Using the Soil and Water Assessment Tool

2014 ◽  
Vol 43 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Jalel Aouissi ◽  
Sihem Benabdallah ◽  
Zohra Lili Chabaâne ◽  
Christophe Cudennec
Keyword(s):  
Water Quality ◽  
Land Management ◽  
Assessment Tool ◽  
Agricultural Practices ◽  
Water Assessment ◽  
Soil And Water

Modeling Miscanthus in the Soil and Water Assessment Tool (SWAT) to Simulate Its Water Quality Effects As a Bioenergy Crop

2010 ◽  
Vol 44 (18) ◽  
pp. 7138-7144 ◽  
Author(s):  
Tze Ling Ng ◽  
J. Wayland Eheart ◽  
Ximing Cai ◽  
Fernando Miguez
Keyword(s):  
Water Quality ◽  
Assessment Tool ◽  
Bioenergy Crop ◽  
Water Assessment ◽  
Soil And Water

Can-GLWS: Canadian Great Lakes Weather Service for the Soil and Water Assessment Tool (SWAT) modelling

2020 ◽  
Author(s):  
Narayan K. Shrestha ◽  
Taimoor Akhtar ◽  
Uttam Ghimire ◽  
Ramesh P. Rudra ◽  
Pradeep K. Goel ◽  
...  
Keyword(s):  
Great Lakes ◽  
Assessment Tool ◽  
Water Assessment ◽  
Soil And Water ◽  
Weather Service

scholarly journals Pemodelan Erosi dan Sedimentasi di DAS Bajulmati : Aplikasi Soil dan Water Assesment Tool (SWAT)

2020 ◽  
Vol 18 (2) ◽  
pp. 220-230
Author(s):  
Mohamad Wawan Sujarwo ◽  
Indarto Indarto ◽  
Marga Mandala
Keyword(s):  
Assessment Tool ◽  
Response Unit ◽  
Water Assessment ◽  
Soil And Water

DAS bajulmati merupakan DAS kecil (± 173.4 km2) yang berada di wilayah timur pulau Jawa. DAS bajulmati memiliki iklim yang spesifik yaitu relatif kering dengan musim kemarau yang panjang (8-9 bulan selama setahun). Meskipun kondisi iklim yang kurang mendukung, sebagian besar masyarakat bekerja sebagai petani landang. Adanya perluasan lahan pertanian non irigasi/ladang mengakibatkan tutupan vegetasi semakin berkurang. Oleh karena itu, evaluasi DAS bajulmati diperlukan untuk mengetahui dampak perluasan lahan pertanian terhadap laju aliran dan sedimentasi dengan kondisi iklim yang cukup spesifik (kering). Salah satu model evaluasi pengelolaan DAS terhadap perubahan lahan adalah model SWAT (Soil and Water Assessment Tool). SWAT dapat menggambarkan proses hidrologi (erosi dan sedimentasi) unit lahan. data DEM resolusi (10x10 m) sebagai masukan utama untuk proses delinasi DAS. Data tanah, tutupan lahan, dan kontur digunakan untuk menentukan unit lahan/hydrolocal response unit (HRU) DAS. Data curah hujan dan iklim (suhu, kelembaban rata-rata, intensitas matahari, kecepatan angin) diperoleh dari stasiun yang tersebar di wilayah DAS. Semua data diintegrasikan ke dalam SWAT untuk menghitung proses hidrologi, erosi dan sedimentasi. Debit yang diamati digunakan untuk mengkalibrasi keluaran debit hasil SWAT di outlet DAS. Hasil kalibrasi debit menunjukkan nilai Nash-Sutcliffe Efficiency sebesar 0,53 dan validasi sebesar 0,5 serta koefisien determinasi sebesar 0,58 dan 0,78 (memuaskan) dan model dapat digunakan untuk ilustrasi proses hidrologi dalam DAS bajulmati. Analisis tingkat erosi SWAT menunjukkan bahwa 34,46; 39,19; dan 17,83 menunjukkan tingkat erosi sangat ringan sampai kategori sedang. Oleh karena itu, DAS Bajulmati masih dalam kategori aman karena rata-rata erosi berat dan sangat berat dibawah 10%. Nilai sedimentasi tertinggi pada HRU 512 dan SubDAS 23. Wilayah tersebut merupakan wilayah perkebunan dengan tingkat kemiringan diatas 40%.

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