A5066125554- Climate variability and models
- Meteorological Phenomena and Simulations
- Precipitation Measurement and Analysis
- Soil Moisture and Remote Sensing
- Global trade and economics
- Plant Water Relations and Carbon Dynamics
- GNSS positioning and interference
- Global Financial Crisis and Policies
- Tropical and Extratropical Cyclones Research
- Radar Systems and Signal Processing
- Environmental Changes in China
- Hydrology and Watershed Management Studies
- Geophysical Methods and Applications
- Cryospheric studies and observations
- Oceanographic and Atmospheric Processes
- Wireless Signal Modulation Classification
- Advanced SAR Imaging Techniques
- Coastal and Marine Dynamics
- Ocean Waves and Remote Sensing
- Marine and coastal ecosystems
- Inertial Sensor and Navigation
- Target Tracking and Data Fusion in Sensor Networks
- Geophysics and Gravity Measurements
- Environmental and Agricultural Sciences
- Atmospheric aerosols and clouds
Jiangxi Normal University
2022-2024
China Meteorological Administration
2024
Jiangsu Institute of Meteorological Sciences
2019-2023
Lanzhou University
2018-2020
Abstract. Reanalysis data play a vital role in weather and climate study as well meteorological resource development application. In this work, the East Asia System (EARS) was developed using Weather Research Forecasting (WRF) model Gridpoint Statistical Interpolations (GSI) assimilation system. The regional reanalysis system is forced by European Centre for Medium-Range Forecasts (ECMWF) global ERA-Interim at 6 h intervals. Hourly surface observations are assimilated Four-Dimension Data...
Using echo-top height and hourly rainfall datasets, a new reflectivity-rainfall ( Z - R ) relationship is established in the present study for radar-based quantitative precipitation estimation (RQPE), taking into account both temporal evolution (dynamical) types of echoes (i.e., based on classification). The then applied to derive RQPE over middle lower reaches Yangtze River two short-time intense cases summer (2200 UTC 1 June 2016 2200 18 2016) one stratiform case winter (0000 15 December...
A method named BTREC, which is in fact an extension of tracking a radar echo by cross-correlation (TREC) method, proposed based on the Barnes filter this paper. BTREC efficient objective analysis for smoothing motion vectors patterns. comparative and COTREC (another TREC, restricted 2D continuity equation) conducted. The results show that corrects noise inconsistencies TREC (often induced shielding, ground clutter, rapid morphological changes patterns) more thoroughly than COTREC. Then...
In this study, high-resolution weather research and forecasting (WRF) simulations are used to explore the sensitivity of lake-effect convection over Poyang Lake (PL) change lake surface temperature (LST). A control experiment (CTR) with climate mean LST (303 K) is compared six experiments (CTR−1/2/3K CTR+1/2/3K) in which LSTs set based on difference 6 K between maximum minimum. The results show that CTR reasonably reproduces convection, significantly influenced by LST. With increase LST,...
Using China New Generation Weather Radar (CINRAD) level-II data, the original algorithms for removing isolated non-meteorological echoes and ground clutters in radar which have been applied to Surveillance Radar-1988 Doppler (WSR-88D) USA Severe Automatic Nowcast (SWAN) system China, are modified improved. To remove echoes, new algorithm introduces a constraint parameter (Po) distinguish whether window of 5 × points is as external echoes. A statistical analysis 150 scans (5 cases, with each...
A convective storm crossing Poyang Lake (PL) in China during 1200-1600 UTC on 13 May 2015 is examined. The results show that this occurs ahead of a 500-hPa trough with weak low-level temperature advection and convectively stable layer between 925 850 hPa, the tail enhanced when its spearhead sweeps over PL after sunset. Due to heating moistening PL, destabilized; instead, deep (below 700 hPa) unstable organized. Moreover, both radiative cooling storm-induced result rapid air (near-surface)...
Abstract. Reanalysis data plays a vital role in weather and climate study, as well meteorological resource development application. In this work, the East Asia System (EARS) was developed using Weather Research Forecasting (WRF) model Gridpoint Statistical Interpolations (GSI) assimilation system. The regional reanalysis system is forced by European Centre of Medium-Range Forecasts (ECMWF) global EAR-Interim at 6-h intervals; hourly surface observations are assimilated Four-Dimension Data...
After a tropical cyclone (TC) making landfall, the numerical model output sea level pressure (SLP) presents many small-scale perturbations which significantly influence positioning of TC center. To fix problem, Barnes filter with weighting parameters <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mi>C</mml:mi><mml:mo>=</mml:mo><mml:mn fontstyle="italic">2500</mml:mn></mml:math> and id="M2"><mml:mi>G</mml:mi><mml:mo>=</mml:mo><mml:mn...
A new method is proposed for identifying ground clutter in single-polarization radar data based on the gated recurrent unit (GRU) neural network. This needs five independent input variables related to reflectivity structure, which are at current tilt, upper 3.5 km, echo top height, and texture of respectively. The performance compared with that traditional used Weather Surveillance Radar 1988-Doppler system four cases different scenarios. results show GRU more effective than capturing...
With the 1 h-averaged data of atmospheric precipitable water vapor (PWV) for 2015–2018 retrieved from 18 ground-based Global Positioning System (GPS) observation stations near Poyang Lake (PL), China, diurnal variations PWV during midsummer (July-August) are studied by harmonic method. Results show that significant found at GPS stations. The harmonics with 24 h cycle (diurnal cycle) over PL (i.e., Duchang and Poyang) Nanchang city only have about 50% (or even smaller than 50%) variance...
Poyang Lake (PL), the biggest freshwater lake in China, is situated East Asian Monsoon region, and have important impacts on local weather climate, especially convection. In this study, several observational data Weather Research Forecasting model were applied to explore of PL short-duration strong convection (resulting lighting) near at around noon 4 May 2020. Results show that when approaches west shore PL, its rapid enhancement induced by after entering main body quick weakening also...