A5054988629- Geophysics and Gravity Measurements
- Oceanographic and Atmospheric Processes
- Ocean Waves and Remote Sensing
- Tropical and Extratropical Cyclones Research
- Climate variability and models
- GNSS positioning and interference
- Geological and Geophysical Studies
- Coastal and Marine Dynamics
- Flood Risk Assessment and Management
- Coal and Its By-products
- Underwater Acoustics Research
- Hydrocarbon exploration and reservoir analysis
- Wind and Air Flow Studies
- Traffic Prediction and Management Techniques
- Methane Hydrates and Related Phenomena
- Inertial Sensor and Navigation
- Infrastructure Resilience and Vulnerability Analysis
- Reservoir Engineering and Simulation Methods
- Geomagnetism and Paleomagnetism Studies
- Climate Change and Sustainable Development
- Cognitive Science and Mapping
- Maritime Navigation and Safety
- Traffic control and management
- Transportation Planning and Optimization
- Sustainability and Ecological Systems Analysis
University of Newcastle Australia
2015-2024
Guizhou University
2021-2023
China National Administration of Coal Geology
2019
Newcastle University
2016-2018
Hebei University of Engineering
2011
Curtin University
2002-2003
CRC for Spatial information
2002
In 2018 we celebrated 25 years of development radar altimetry, and the progress achieved by this methodology in fields global coastal oceanography, hydrology, geodesy cryospheric sciences. Many symbolic major events have these developments, e.g., Venice, Italy, 15th (2006) 20th (2012) more recently, 2018, Ponta Delgada, Portugal, Years Progress Radar Altimetry. On latter occasion it was decided to collect contributions scientists, engineers managers involved worldwide altimetry community...
Satellite radar altimeter‐derived sea surface heights (SSH) are in error coastal regions due, part, to the complex nature of echoes returned from rapidly varying land and surfaces. This paper presents improved SSH results Australian using waveform retracking technique, which reprocesses data through a “coastal system”. The system, based upon systematic analysis satellite altimeter waveforms around Australia, improves several retrackers depending on waveforms' characteristics. Central system...
A changing climate may increase the frequency or intensity of natural hazards, resulting in increased infrastructure damage. The paper will describe how risk-based approaches are well suited to optimising adaptation strategies related construction, design, operation, and maintenance built infrastructure. Climate engineering involves estimating risks, costs, benefits assessing at what point time becomes economically viable. Stochastic methods used model performance, risk reduction,...
It is broadly acknowledged that the precision of satellite-altimeter-measured instantaneous sea surface heights (SSH) lower in coastal regions than open oceans, due partly to contamination radar return from sea-surface state and land topography. This study investigates behavior ERS-2 POSEIDON altimeter waveform data estimates a boundary around Australia's coasts which range may be poorly estimated by on-satellite tracking software. Over one million 20 Hz (March April 1999) (January 1998...
This article presents the waveform retracking technique for two predominant classes near coast: quasi-specular and multi-peak echoes. The retracks truncated sub-waveform rather than full-waveform. Sub-waveforms, which are only based on returns reflected from water surface, extracted retracked using Brown model. retracker is applied to simulated waveforms Jason-1 Jason-2 in Great Barrier Reef. When it as a supplement full-waveform retracker, results show that SSHs can be extended further...
Abstract. A new dedicated 20 Hz coastal sea level dataset, called the International Altimetry Service 2024 (IAS2024, https://doi.org/10.5281/zenodo.13208305, Peng et al., 2024c), is presented for monitoring changes along world's coastlines. One of reasons generating this dataset that quality altimeter data has been greatly improved with advanced reprocessing strategies. In study, Seamless Combination Multiple Retrackers (SCMR) strategy adopted to obtain reprocessed Jason from January 2002...
We validated Jason-2 satellite altimeter Sensor Geophysical Data Records (SGDR) by retracking 20-Hz radar waveforms over the California coastal ocean using cycles 7–34, corresponding to September 2008–June 2009. The performance of ocean, ice, threshold, and modified threshold retrackers are examined a reference geoid based on Earth Gravitational Model 2008 (EGM08). Over shallow (depth < 200 m), retracker, which is developed for noisy with preleading edge bump, outperforms other retrackers....
The latest satellite and in situ data are a fundamental source for tidal model evaluations. In this work, the missions TOPEX/Poseidon, Jason-1, Jason-2 Sentinel-3A, together with tide gauge data, were used to investigate performance of recent regional global models over Great Barrier Reef, Australia. Ten models, namely, TPXO8, TPXO9, EOT11a, HAMTIDE, FES2012, FES2014, OSUNA, OSU12, GOT 4.10 DTU10, considered. accuracy eight major constituents (i.e., K1, O1, P1, Q1, M2, S2, N2 K2) one shallow...
To increase data availability and accuracy in the coastal zone, especially last 5 km to coast, we present a SCMR (Seamless Combination of Multiple Retrackers) processing strategy combine sea surface height (SSH) estimates from waveform retrackers SGDR MLE4, ALES, WLS3 MB4 for Jason-3 Saral missions, SAMOSA SAMOSA+ Sentinel-3A mission Australian zone. The does not require classification result. It includes two steps: (1) estimating removing SSH bias due mainly significant wave (SWH)...
A new Brown-Peaky (BP) retracker has been developed for peaky waveforms that usually appear within ∼10 km to the coastline. The main feature of BP is it fits using Brown model without introducing a peak function. retracking strategy first detects location and width waveform an adaptive detection method, then estimates parameters weighted least squares (WLS) estimator. WLS assigns downsized weight corrupted gates, but equal other normal gates. applied 4-year Jason-1 (2002–2006) in two...
This paper presents the Coastal Altimetry Waveform Retracking Expert System (CAWRES), a novel method to optimise Jason satellite altimetric sea levels from multiple retracking solutions. CAWRES’ aim is achieve highest possible accuracy of coastal levels, thus bringing measurement radar altimetry data closer coast. The principles CAWRES are twofold. first reprocess altimeter waveforms using optimal retracker, which sought based on analysis fuzzy expert system. second minimise relative offset...
A new approach for improving the accuracy of altimetry-derived sea level anomalies (SLAs) near coast is presented. Estimation SLAs optimized using optimal waveform retracking through a fuzzy multiple system and most appropriate detiding method. With system, fuzzy-retracked become available within 5 km coast; meanwhile it becomes more important to use pointwise tide modelling rather than state-of-the-art global tidal models, as latter leave residual ocean signals in retracked SLAs. These...
In this book Geodesy – Introduction to Geodetic Datum and Systems, Lu, Qu Qiao weave a series of seven chapters cover the entire fields coordinate system terrestrial refe...
Over inland waters the altimetry radar return is typically contaminated by both land and surrounding vegetation. Moreover, returns corresponding to floodplain vegetation exposed mud flats can have similar waveform shapes those reflected from open water surfaces so that derived surface elevations are either inaccurate or difficult extract. This letter presents a robust automated method based on image analysis of satellite imagery for selection waveforms over inundated zones. The footprint...