Results 21 to 30 of about 201,433 (263)

Calibration approaches for distributed hydrologic models in poorly gaged basins: implication for streamflow projections under climate change [PDF]

Hydrology and Earth System Sciences, 2015
This study tests the performance and uncertainty of calibration strategies for a spatially distributed hydrologic model in order to improve model simulation accuracy and understand prediction uncertainty at interior ungaged sites of a sparsely gaged ...
S. Wi, Y. C. E. Yang, S. Steinschneider, A. Khalil, C. M. Brown   +4 more
doaj   +1 more source

Parameter Estimation: Online Calibration

, 2017
This book presents a set of approaches for the real-time monitoring and control of drinking-water networks based on advanced information and communication technologies. It shows the reader how to achieve significant improvements in efficiency in terms of water use, energy consumption, water loss minimization, and water quality guarantees.
Sanz Estapé, Gerard, Pérez Magrané, Ramon   +1 more
openaire   +3 more sources

Hydrological Model Calibration with Streamflow and Remote Sensing Based Evapotranspiration Data in a Data Poor Basin

Remote Sensing, 2020
Conventional calibration methods adopted in hydrological modelling are based on streamflow data measured at certain river sections. However, streamflow measurements are usually sparse and, in such instances, remote-sensing-based products may be used as ...
T. A. Jeewanthi G. Sirisena, Shreedhar Maskey, Roshanka Ranasinghe   +2 more
doaj   +1 more source

Camera model and parameter calibration

IOP Conference Series: Earth and Environmental Science, 2020
Abstract Each camera has its own model and parameters. Accurate calibration of the camera’s model parameters can effectively prevent distortion effects and ensure image imaging. In this paper, the three-dimensional space points of the camera model are linked with the two-dimensional image points, and the in-plane distortion parameters of
Xingxing Li, Yan Zhi, Panpan Yin, Chao Duan   +3 more
openaire   +1 more source

Method of Tower-less Calibration for Phase Parameter of Tracking System

MATEC Web of Conferences, 2015
This paper introduced the principle of angle errors in tracking system. The demodulation was only related to signal envelop, and supported the phase calibration of radio star.
Ge Tiezhi, Wei Mingshan, Su Qiang, Huang Longcheng, Quan Gang   +4 more
doaj   +1 more source

PARAMETER CALIBRATION OF RICE STRAW PARTICLE–CRUSHING MODEL [PDF]

Engenharia Agrícola
Discrete element method is widely used to study grain particles; however, there is a lack of research on the mathematical model parameters of rice straw particles in the crushing simulation process.
Shuying Jiang, DeZhi Ren, Fang Ma, Zhongyu Chen, Yanming Che   +4 more
doaj   +1 more source

Variability in Estimating Crop Model Genotypic Parameters: The Impact of Different Sampling Methods and Sizes

Agriculture, 2023
Generic parameter calibration for crop growth models is a very important step in model use. However, studies of the effect of sample size and sampling methods on the calibration and validation of genotypic parameters have seldom been conducted ...
Xintian Ma, Xiangyi Wang, Yingbin He, Yan Zha, Huicong Chen, Shengnan Han   +5 more
doaj   +1 more source

Robust multi-objective calibration strategies – possibilities for improving flood forecasting [PDF]

Hydrology and Earth System Sciences, 2012
Process-oriented rainfall-runoff models are designed to approximate the complex hydrologic processes within a specific catchment and in particular to simulate the discharge at the catchment outlet. Most of these models exhibit a high degree of complexity
G. H. Schmitz, P. Saile, J. Cullmann, T. Krauße   +3 more
doaj   +1 more source

Standard Errors for Calibrated Parameters

Review of Economic Studies
Abstract Calibration, the practice of choosing the parameters of a structural model to match certain empirical moments, can be viewed as minimum distance estimation. Existing standard error formulas for such estimators require a consistent estimate of the correlation structure of the empirical moments, which is often unavailable in ...
Cocci, Matthew D., Plagborg-Møller, Mikkel   +1 more
openaire   +3 more sources

Identifiable parameters for parallel robots kinematic calibration [PDF]

Proceedings 2001 ICRA. IEEE International Conference on Robotics and Automation (Cat. No.01CH37164), 2002
This paper presents a numerical method for the determination of the identifiable parameters of parallel robots. The special case of Stewart-Gough 6 degrees-offreedom parallel robots is studied for classical and self calibration methods, but this method can be generalized to any kind of parallel robot.
Sébastien Besnard, Wisama Khalil
openaire   +2 more sources