A5101912276- Atmospheric aerosols and clouds
- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Remote Sensing and LiDAR Applications
- Meteorological Phenomena and Simulations
- Aeolian processes and effects
- Advanced Fiber Optic Sensors
- Wind and Air Flow Studies
- Advanced Fiber Laser Technologies
- Wind Energy Research and Development
- Ocean Waves and Remote Sensing
- Photonic Crystal and Fiber Optics
- Advanced Optical Sensing Technologies
- Remote Sensing in Agriculture
- Marine and coastal ecosystems
- Fluid Dynamics and Turbulent Flows
- Spectroscopy and Laser Applications
- Atmospheric Ozone and Climate
- Photonic and Optical Devices
- Oceanographic and Atmospheric Processes
- Plant Water Relations and Carbon Dynamics
- Analytical Chemistry and Sensors
- Precipitation Measurement and Analysis
- Quantum Mechanics and Non-Hermitian Physics
- Laser Design and Applications
Ocean University of China
2016-2025
Laoshan Laboratory
2023-2024
Qingdao National Laboratory for Marine Science and Technology
2017-2024
University of Technology Sydney
2021
The University of Sydney
2021
Chinese Academy of Geological Sciences
1993
Among the various challenges in spaceborne radar observation of ocean, following two issues are probably a higher priority: inadequate dynamic resolution, and ineffective vertical penetration. It is therefore vision National Laboratory for Marine Science Technology China that highly anticipated breakthroughs coming decade likely to be associated with interferometry ocean lidar technology, which expected make substantial contribution submesoscale-resolving depth-resolving ocean. As an...
A novel differential intensity-measurement high-sensitivity refractive index (RI) sensor based on cascaded dual-wavelength fiber laser and single-mode-no-core-hollow-core-no-core-single-mode (SNHNS) structure is proposed demonstrated. The sensing unit consists of one uniform Bragg grating (FBG) an SNHNS as all-fiber interferometer filter. has a ring cavity composed two FBGs with central wavelengths 1550.10nm 1553.61nm. Through monitoring the wavelength shift output power difference laser,...
Abstract. After the successful launch of Aeolus, which is first spaceborne wind lidar developed by European Space Agency (ESA), on 22 August 2018, we deployed several ground-based coherent Doppler lidars (CDLs) to verify observations from Aeolus. By simultaneous measurements with CDLs at 17 stations over China, Rayleigh-clear and Mie-cloudy horizontal-line-of-sight (HLOS) velocities Aeolus in atmospheric boundary layer lower troposphere are compared those CDLs. To ensure quality measurement...
Abstract. The new-generation atmospheric environment monitoring satellite DQ-1, launched successfully in April 2022 carries the Aerosol and Carbon Detection Lidar (ACDL) which is capable of globally profiling aerosols clouds optical properties with high accuracy. ACDL/DQ-1 a high-spectral-resolution lidar (HSRL) two-wavelength polarization detection, that can be utilized to derive aerosol properties. methods are specifically developed for data processing retrieval according specific...
The accurate three-dimensional wind field obtained from a Doppler lidar not only helps to comprehend the refined structure of complex airflow but also provides important and valuable solutions for many fields. However, underlying homogeneity assumption typical retrieval methods, such as Beam Swinging (DBS) Velocity Azimuth Display (VAD) based on single-lidar, will introduce measurement uncertainty in terrain. In this paper, new design campaign involving seven lidars was carried out, which...
Wind power generation is growing fast as one of the most promising renewable energy sources that can serve an alternative to fossil fuel-generated electricity. When wind turbine generator (WTG) extracts from wind, wake evolves and leads a considerable reduction in efficiency actual generation. Furthermore, effect lead increase turbulence induced fatigue loads reduce life time WTGs. In this work, pulsed coherent Doppler lidar (PCDL) has been developed deployed visualize wakes characterize...
Intensive field experiment is an important approach to obtain microphysical information about clouds and precipitation. From 1 July 31 August 2014, the third Tibetan Plateau Atmospheric Science Experiment was carried out comprehensive measurements of water vapor, clouds, precipitation were conducted at Naqu. The most advanced radars in China, such as Ka-band millimeter-wave cloud radar, Ku-band micro-rain C-band continuous-wave radar lidar, microwave radiometer disdrometer deployed observe...
This paper evaluates the wake vortex characteristics using pulsed coherent Doppler lidar (PCDL) under near-ground effect (NGE). A visualization demonstrator (V2D) is developed in order to visualize real-time. The combination of radial velocity distribution and FFT spectrum characterization are used identify core position vortex. envelope Burnham-Hallock model correction retrieve circulation NGE. error, which caused by PCDL scanning mode, simulated corrected. To investigate dissipation rate's...
Abstract. On 16 April 2022, China successfully launched the world's first spaceborne high-spectral-resolution lidar (HSRL), which is called Aerosol and Carbon Detection Lidar (ACDL), on board Atmospheric Environment Monitoring Satellite known as Daqi-1 (DQ-1). The ACDL expected to precisely detect three-dimensional distribution of aerosol cloud globally with high spatial–temporal resolutions. To assess performance newly satellite lidar, ACDL-retrieved observations were compared ground-based...
Abstract. The new-generation atmospheric environment monitoring satellite DQ-1, launched successfully in April 2022, carries the Aerosol and Carbon Detection Lidar (ACDL), which is capable of globally profiling aerosol cloud optical properties with high accuracy. ACDL/DQ-1 a high-spectral-resolution lidar (HSRL) that separates molecular backscatter signals using an iodine filter has 532 nm polarization detection dual-wavelength at 1064 nm, can be utilized to derive properties. methods have...
Abstract. Marine aerosol affects the global energy budget and regional weather. The production of marine is primarily driven by wind at sea–air interface. Previous studies have explored effects on aerosol, mostly examining relationships between optical depth (AOD) surface speed. In this paper, utilizing synergy observations from Aeolus, properties 355 nm instantaneous co-located speeds remote oceans are investigated two vertical layers (within above atmospheric boundary layer (MABL))....
A dual-frequency optoelectronic oscillator (OEO) incorporating a polarization-maintaining fiber Bragg grating (PMFBG) Fabry-Perot filter for high-sensitivity and high-speed axial strain temperature sensing is proposed experimentally demonstrated. In the OEO loop, two oscillation frequencies are determined by PMFBG with ultra-narrow notches laser sources which operate as dual-passband microwave photonic filter. The birefringence affected far less than temperature. Through monitoring...
Ocean water column information profiles are essential for ocean research. Currently, typically obtained by lidar instruments, including spaceborne, airborne and shipborne lidar, most of which equipped with a 532 nm laser; however, blue wavelength penetrates more open detection. In this paper, we present novel dual-wavelength (DWOL), 486 laser that can operate simultaneously. This instrument was designed to compare the performance lasers in single detection area provide reference future...
An Hz-magnitude ultra-narrow linewidth single-frequency Brillouin fiber laser (BFL) is proposed and experimentally demonstrated. The single frequency of the selected by parity-time (PT) symmetry, which consists a stimulated scatter (SBS) gain path excited 24 km single-mode (SMF) an approximately equal length loss tuned with variable optical attenuator (VOA). These paths are coupled through Bragg grating (FBG) into wavelength space. Accomplishing oscillation involves precise adjustment...
Accurately measuring wind field is crucial for studying the dynamical structure and evolutionary characteristics of atmosphere, as well heat-momentum-matter exchange balance. According to World Meteorological Organization (WMO), global observation 3D primary factor improving accuracy numerical weather prediction. Due absence aeronautical data, meteorological forecasting capabilities are notably deficient in sparsely populated areas, southern hemisphere, polar regions, vast oceans. Spaceborne...
Four field experiments based on Pulsed Coherent Doppler Lidar with different surface roughness have been carried out in 2013-2015 to study the turbulent wind vicinity of operating turbine onshore and offshore parks. The turbulence characteristics ambient atmosphere wake area was analyzed using transverse structure function Plane Position Indicator scanning mode. An automatic processing procedure developed determine velocity deficit by considering effect disturbance meandering mean direction....
A temperature self-calibrated potential of hydrogen (pH) sensor based on the single mode fiber-tapered dual core photonic crystal fiber-single fiber (SMF-TDCPCF-SMF) structure cascaded with a Bragg grating (FBG) is proposed and demonstrated. The TDCPCF formed Mach-Zehnder interferometer (MZI) modified coating graphene oxide/polyvinyl alcohol (GO/PVA) hybrid hydrogel to realize measurement pH, uncoated FBG used calibrate temperature. In our experiment, sensitivity coefficient 0.69 nm/pH R 2...
This paper describes a novel compact fiber sensor with high sensitivity for the simultaneous measurement of underwater salinity and temperature by simulation. The structure is based on highly birefringent, asymmetric, full-circular hole photonic crystal (HB-A-FCH PCF), which achieves birefringence value 2.83 × 10-3 at wavelength 2.2 µm. In addition, ethanol-filled specific air holes, HB-A-FCH PCF remarkably improved. Therefore, considering property, we simulate Michelson interferometer-based...