Terrestrial-Aquatic Sciences Convergence (TASC) to Advance Watershed Modeling
TASC is based on SWAT-C
Google Group: https://groups.google.com/g/TASC-modeling-group
Contact: Xuesong Zhang (Xuesong.Zhang@usda.gov)
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Current model development efforts:
New York City Department of Environmental Protection (Sijal Dangol, Rakesh Gelda, Siyu Li, Vivian Jensen, Rajith Mukundan)
Crop and grass growth and development
Forest growth and development
Soil organic carbon cycling
Variable source area
Improve R-SWAT as R-TASC
Ohio State University (Kaiguang Zhao, Yiming Wang):
Energy balance
Photosynthesis
Dissolved organic carbon
Remote sensing informed modeling
USDA-ARS (Xuesong Zhang):
River routing
coupled terrestrial and aquatic biogeochemical cycling
New video showing how to use R-SWAT for calibrating TASC (by Tam V. Nguyen):
TASC overview
TASC overview
TASC is a watershed scale model that converges terrestrial and aquatic carbon cycles at the watershed scale. It is based on the SWAT-C model and has unique functions to assess impacts that agricultural management and extreme weather events have on a wide range of processes and indicators, such as crop and forest productivity, soil organic carbon storage, nitrous oxides emissions, freeze-thaw cycles/water temperature, and riverine carbon fluxes.
Carbon algorithms from EPIC, DayCent, DNDC, ORCHIDEE, CE-QUAL-ICM, CE-QUAL-WS, QUAL2K, and latest literature are under development.
Brief Introduction to TASC_Feb_27_2026.pdfPage updated
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