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Abstract (From http://journals.ametsoc.org/doi/abs/10.1175/JHM-D-15-0062.1): Over mountainous terrain, ground weather radars face limitations in monitoring surface precipitation as they are affected by radar beam blockages along with the range-dependent biases due to beam broadening and increase in altitude with range. These issues are compounded by precipitation structures that are relatively shallow and experience growth at low levels due to orographic enhancement. To improve surface precipitation estimation, researchers at the University of Oklahoma have demonstrated the benefits of integrating the Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) products into the ground-based NEXRAD rainfall...
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Variable Infiltration Capacity model results for several hydroclimatological variables for the Arkansas and Canadian River Basin of Oklahoma. Inputs to models were Daymet climate observations as well as the CCSM4, MIROC5, and MPI ESM LR Global Climate Models using Representative Concentration Pathways 2.6, 4.5 and 8.5.
Tags: Arkansas River Basin,
Baseflow,
Canadian River Basin,
Choctaw Nation,
Drainage Area, All tags...
Evaporation,
Kansas,
New Mexico,
Oklahoma,
Precipitation,
Runoff,
Soil Moisture Content,
South Central Oklahoma,
Streamflow,
Temperature,
Texas,
The Chickasaw Nation,
Transpiration,
Variable Infiltration Capacity,
biota, Fewer tags
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Abstract (from http://ascelibrary.org/doi/abs/10.1061/(ASCE)HE.1943-5584.0001282): A novel multisite cascading calibration (MSCC) approach using the shuffled complex evolution–University of Arizona (SCE-UA) optimization method, developed at the University of Arizona, was employed to calibrate the variable infiltration capacity (VIC) model in the Red River Basin. Model simulations were conducted at 35 nested gauging stations. Compared with simulated results using a priori parameters, single-site calibration can improve VIC model performance at specific calibration sites; however, improvement is still limited in upstream locations. The newly developed MSCC approach overcomes this limitation. Simulations using MSCC...
Categories: Publication;
Types: Citation;
Tags: Indigenous Peoples,
Rivers, Streams and Lakes,
South Central CASC,
Tribes and Tribal Organizations,
Water, Coasts and Ice, All tags...
hydrological modeling,
optimization,
water, Fewer tags
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Several times during the severe drought of 2010-2015, communities within the jurisdictional territories of the Chickasaw Nation and the Choctaw Nation of Oklahoma were precariously close to running out of water. According to previous studies, temperatures are expected to continue to rise throughout the southern states, and droughts are predicted to be longer and more severe. Even small changes to a river’s water flow regime may have unanticipated consequences on the water resources, especially for communities that rely on direct river diversions to supply their needs. A suitable water availability model is a key tool needed to help communities investigate where vulnerabilities in water resources may occur and the...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2020,
CASC,
Data Visualization & Tools,
Data Visualization & Tools,
Drought, All tags...
Drought,
Drought, Fire and Extreme Weather,
Drought, Fire and Extreme Weather,
Indigenous Peoples,
Indigenous Peoples,
Other Water,
Projects by Region,
Rivers, Streams and Lakes,
Rivers, Streams and Lakes,
Science Tools for Managers,
Science Tools for Managers,
South Central,
South Central CASC,
Tribes and Tribal Organizations,
Tribes and Tribal Organizations,
Water, Coasts and Ice,
Water, Coasts and Ice, Fewer tags
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