Qin Xu

发表

A three-dimensional variational single-Doppler velocity retrieval method with simple conservation equation constraint

Jidong Gao, Alan Shapiro, Ming Xue, 2006 .

Residue Analysis of Picoxystrobin in Cucumber under Field Condition and Individual Variations of Residue Levels

Xu Yingming, Qin Xu, Sun Yang, 2016 .

Time-expanded sampling for ensemble-based filters: Assimilation experiments with real radar observations

Huijuan Lu, Qin Xu, Mingming Yao, 2011 .

An Improved Time Interpolation for Three-Dimensional Doppler Wind Analysis

Qin Xu, Pengfei Zhang, Shun Liu, 2004 .

Calculation and analysis of a new type of program unit

Qin Xu, 2013 .

A two‐step variational method for analyzing severely aliased radar velocity observations with small Nyquist velocities

Qin Xu, Kang Nai, Qin Xu, 2013 .

Iterative Methods for Solving the Nonlinear Balance Equation with Optimal Truncation

Qin Xu, Jie Cao, Qin Xu, 2021, Advances in Atmospheric Sciences.

Adjoint-Method Retrievals of Low-Altitude Wind Fields from Single-Doppler Wind Data

Qin Xu, Chong-Jian Qiu, Jin-Xiang Yu, 1994 .

A Method for Retrieving Mean Horizontal Wind Profiles from Single-Doppler Radar Observations Contaminated by Aliasing

Jidong Gao, Qin Xu, Kelvin K. Droegemeier, 2004 .

Estimation of Three-Dimensional Error Covariances. Part II: Analysis of Wind Innovation Vectors

Li Wei, Qin Xu, Qin Xu, 2001 .

Measuring information content from observations for data assimilations: connection between different measures and application to radar scan design

Li Wei, Qin Xu, S. B. Healy, 2009 .

Density Currents in Shear Flows-A Two-Fluid Model

Qin Xu, 1992 .

Using Radar Wind Observations to Improve Mesoscale Numerical Weather Prediction

Qin Xu, Paul R. Harasti, Qingyun Zhao, 2006 .

A Three-Step Dealiasing Method for Doppler Velocity Data Quality Control

Qin Xu, Jiandong Gong, Qin Xu, 2003 .

Multistep variational data assimilation: important issues and a spectral approach

Jidong Gao, Li Wei, Qin Xu, 2016 .

Adjoint-Method Retrievals of Low-Altitude Wind Fields from Single-Doppler Reflectivity and Radial-Wind Data

Qin Xu, Chong-Jian Qiu, 1995 .

Representations of inverse covariances by differential operators

Qin Xu, Qin Xu, 2003 .

Prognostic Equation for Radar Radial Velocity Derived by Considering Atmospheric Refraction and Earth Curvature

Li Wei, Qin Xu, Qin Xu, 2013 .

Time‐expanded sampling for ensemble‐based filters: Assimilation experiments with a shallow‐water equation model

Li Wei, Qin Xu, Qingyun Zhao, 2008 .

Identifying Doppler Velocity Contamination Caused by Migrating Birds. Part I: Feature Extraction and Quantification

Pengfei Zhang, Qin Xu, Shun Liu, 2005 .

Measuring information content from observations for data assimilation: relative entropy versus shannon entropy difference

Qin Xu, Qin Xu, 2007 .

Simple Adjoint Retrievals of Microburst Winds from Single-Doppler Radar Data

Qin Xu, Chong-Jian Qiu, Jin-Xiang Yu, 1995 .

WSR-88D Radar Data Processing at NCEP

Jian Zhang, Pengfei Zhang, Liping Liu, 2016 .

Identifying Doppler velocity contamination caused by migrating birds. Part II: Bayes identification and probability tests

Pengfei Zhang, Qin Xu, Shun Liu, 2005 .

An Evaluation of Two NEXRAD Wind Retrieval Methodologies and Their Use in Atmospheric Dispersion Models

Pengfei Zhang, Juanzhen Sun, Qin Xu, 2008 .

Trade-Offs between Measurement Accuracy and Resolutions in Configuring Phased-Array Radar Velocity Scans for Ensemble-Based Storm-Scale Data Assimilation

Qin Xu, Huijuan Lu, 2009 .

Simple Adjoint Retrievals of Wet-Microburst Winds and Gust-Front Winds from Single-Doppler Radar Data

Qin Xu, Chong-Jian Qiu, Hong-Dao Gu, 2001 .

Background error covariance functions for Doppler radial‐wind analysis

Qin Xu, Jiandong Gong, Qin Xu, 2003 .

Three-Dimensional Simple Adjoint Velocity Retrievals from Single-Doppler Radar

Jidong Gao, Alan Shapiro, Ming Xue, 2001 .

A Theoretical and Numerical Study of Density Currents in Nonconstant Shear Flows

Ming Xue, Qin Xu, Kelvin K. Droegemeier, 1997 .

Density Current Circulations in Shear Flows

Qin Xu, Mitchell W. Moncrieff, 1994 .

Using WSR-88D Polarimetric Data to Identify Bird-Contaminated Doppler Velocities

Pengfei Zhang, Liping Liu, Qin Xu, 2013 .

Estimating Soil Water Contents from Soil Temperature Measurements by Using an Adaptive Kalman Filter

Qin Xu, C. Qiu, Qin Xu, 2004 .

Using Wavelet Analysis to Detect Tornadoes from Doppler Radar Radial-Velocity Observations

Ming Xue, Qin Xu, Shun Liu, 2007 .

Background error covariance functions for vector wind analyses using Doppler‐radar radial‐velocity observations

Ming Xue, Qin Xu, Shun Liu, 2006 .

Statistical Errors in Variational Data Assimilation–A Theoretical One-Dimensional Analysis Applied to Doppler Wind Retrieval

Qin Xu, Shuowen Yang, 1996 .

Fitting model fields to observations by using singular value decomposition: An ensemble‐based 4DVar approach

Li Wei, Aimei Shao, Qin Xu, 2007 .

An innovation method for estimating radar radial‐velocity observation error and background wind error covariances

Li Wei, Qin Xu, Kang Nai, 2007 .

Generalized Adjoint for Physical Processes with Parameterized Discontinuities. Part III: Multiple Threshold Conditions

Qin Xu, 1997 .

Least Squares Retrieval of Microburst Winds from Single-Doppler Radar Data

Qin Xu, Chong-Jian Qiu, 1996 .