A5047897130- Geophysics and Gravity Measurements
- GNSS positioning and interference
- Nutrition and Health Studies
- Statistical and numerical algorithms
- Inertial Sensor and Navigation
- Geomagnetism and Paleomagnetism Studies
- Ionosphere and magnetosphere dynamics
- Time Series Analysis and Forecasting
- Body Composition Measurement Techniques
- Occupational Health and Performance
- Advanced Frequency and Time Standards
- Seismology and Earthquake Studies
- earthquake and tectonic studies
- Solar and Space Plasma Dynamics
- Geological Formations and Processes Exploration
- Health, Work, and Social Studies in Poland
- Tropical and Extratropical Cyclones Research
- Earthquake Detection and Analysis
- Climate variability and models
- Complex Systems and Time Series Analysis
- Hydrology and Drought Analysis
- Renewable energy and sustainable power systems
- Integrated Water Resources Management
- Structural Health Monitoring Techniques
- Statistical and Computational Modeling
Military University of Technology in Warsaw
2015-2024
University of Bonn
2023
ORCID
2023
Wojskowy Instytut Higieny i Epidemiologii
2007-2019
University of Luxembourg
2016
Institute of Geodesy and Geophysics
2016
Geomatics (Norway)
2015
University School of Physical Education in Kraków
2013
Each of the GPS-derived time series consists deterministic (functional) and stochastic part. We propose that part includes all periodicities from 1st to 9th harmonics residual Chandler, tropical draconitic periods compare it with commonly used calculations annual semi-annual curve. Then, we address issues whether periodicities, as proposed here, need be taken into consideration when performing noise analysis. use position 180 International GNSS Service stations obtained at Jet Propulsion...
Abstract We describe the new global land water storage data set GLWS2.0, which contains total anomalies (TWSA) over except for Greenland and Antarctica with a spatial resolution of 0.5 $$^\circ $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow/> <mml:mo>∘</mml:mo> </mml:msup> </mml:math> , covering time frame 2003 to 2019 without gaps, including monthly uncertainty quantification. GLWS2.0 was derived by assimilating GRACE/-FO mass change maps into WaterGAP...
The velocity estimates and their uncertainties derived from position time series of Global Navigation Satellite System stations are affected by seasonal signals harmonics, the statistical properties, i.e., stochastic noise, contained in series. If deterministic model form linear trend periodic terms is not accurate enough to describe series, it will alter model, resulting effect on can be perceived as a result misfit model. effects insufficiently modeled propagate into falsify results noise...
The coordinate time series determined with the Global Positioning System (GPS) contain annual and semi-annual periods that are routinely modeled by two periodic signals constant amplitude phase-lag. However, phase-lag of seasonal vary slightly over time. Various methods have been proposed to model these variations such as Wavelet Decomposition (WD), writing signal a Chebyshev polynomial is function (CP), Singular Spectrum Analysis (SSA), using Kalman Filter (KF). Using synthetic series, we...
Abstract The Gravity Recovery and Climate Experiment (GRACE) mission has enabled mass changes transports in the hydrosphere, cryosphere oceans to be quantified with unprecedented resolution. However, while this legacy is currently being continued GRACE Follow-On (GRACE-FO) there a gap of 11 months between end start GRACE-FO which must addressed. Here we bridge by combining time-variable, low-resolution gravity models derived from European Space Agency’s Swarm satellites dominating spatial...
Low-dose CT scans are very fast, but they feature strong pixel noise which, in turn, invites for efficient denoising the same way that image blur sharpening images. Wiener-deconvolution serves as a starting point, combining these two operations linear Fourier filter. It may apply 2D or 3D and requires merely estimates of Signal-to-Noise Ratio SNR2 well system Modulation Transfer Function (MTF). Meanwhile, any filter is unable to adapt local contrast variations Therefore, convolutional neural...
Estimating trends from Climate Data Records (CDRs) of Essential Variables (ECVs) is necessary to detect persistent changes in Earth&#8217;s climate and geophysical processes states. Accurately describing trend uncertainty also essential determining the significance observed attributing drivers. However, despite importance uncertainty, no established assessment approach properly accounts for all known sources uncertainty. Most approaches either neglect part measurement such as system...
GNSS Zenith Total Delay (ZTD) estimates are quantities of great interest by climate modellers since atmospheric water vapour is the major greenhouse gas. Therefore, importance its accurate, long-term monitoring and evaluation trends variability, potentially serving as independent benchmarks to climatological models, both on longer derived from GNSS, but also shorter trends, which could be used for assimilation validation models. ZTD determined a regular basis several processing centers well...
We use more than 5,000 Global Positioning System (GPS) permanent stations whose observations are processed by the Nevada Geodetic Laboratory (NGL) and located in Europe to classify them as reliable for hydrogeodetic studies, a so-called benchmarks. Benchmarks defined investigating whether GPS-observed daily vertical displacements positively significantly correlated with hydrological model, Terrestrial Water Storage (TWS) estimates converted into model-predicted displacements. Due complexity...
In recent years, drought events have become more frequent and severe, affecting human life, the environment, industry. As a result, monitoring characteristics such as patterns, occurrences, intensity, categories, duration presents crucial challenge for scientists. These are usually estimated using hydrological or climate models, which, however, frequently fail to capture actual changes. Consequently, droughts under-, overestimated not captured. remote sensing advances, near real-time...
Long series of Zenith Wet Delay (ZWD) obtained as part a homogeneous re-processing Global Positioning System solutions constitute reliable set data to be assimilated into climate models. The correct stochastic properties, i.e. the noise model these data, have identified assess real value ZWD trend uncertainties since assuming an inappropriate may lead over- or underestimated error bounds leading statistically insignificant trends. We present time for 1995–2017 120 selected globally...
Abstract We have reconstructed integrated water vapor (IWV) using the zenith wet delays to track properties of hurricanes and explore their spatial temporal distributions estimated from 922 GPS stations. Our results show that a surge in GPS-derived IWV occurred at least six hours prior landfall two major (Harvey Irma) struck Gulf East Coasts USA 2017. observed enhanced IWV, particular, for locations. The variations exhibit correlation with precipitation value constructed GPM/IMERG satellite...
Abstract We assess the performance of different break detection methods on three sets benchmark data sets, each consisting 120 daily time series integrated water vapor differences. These differences are generated from Global Positioning System (GPS) measurements at sites worldwide, and numerical weather prediction reanalysis (ERA‐Interim) output, which serves as reference here. The includes homogeneous inhomogeneous sections with added nonclimatic shifts (breaks) in latter. Three variants...
Abstract We examine the sensitivity of Global Positioning System (GPS) to non-tidal loading for a set continental Eurasia permanent stations. utilized daily vertical displacements available from Nevada Geodetic Laboratory (NGL) at stations located least 100 km away coast. Loading-induced predictions earth’s crust are provided by Earth-System-Modeling Group GFZ (ESMGFZ). demonstrate that hydrological loading, supported barystatic sea-level changes close global mass budget (HYDL + SLEL),...
The sensitivity of Global Positioning System (GPS) technique to detect displacements caused by Total Water Storage (TWS) changes has already been analyzed, while its individual TWS components, such as groundwater, is still in question. We use the probabilistic Principal Component Analysis (pPCA) examine spatio-temporal variations vertical from 98 GPS stations located 9 regions world recognized those where groundwater masses are most significant. To study Earth's crust induced masses, we...
Gravity Recovery and Climate Experiment (GRACE) mission data is widely used in various fields of science.GRACE explored changes the gravity field regularly from April 2002 to June 2017.In following research, we examine variance signal contained two different formats GRACE data: standard spherical harmonics mass concentration blocks (so-called "mascons") solutions, both provided most recent releases.For harmonics-based solution, use monthly solutions up degree order (d/o) 96 by three...
The paper presents the results of testing various methods permanent stations' velocity residua interpolation in a regular grid, which constitutes continuous model field territory Poland. Three packages software were used research from point view interpolation: GMT (The Generic Mapping Tools), Surfer and ArcGIS. following tested softwares: Nearest Neighbor, Triangulation (TIN), Spline Interpolation, Surface, Inverse Distance to Power, Minimum Curvature Kriging. presented absolute velocities'...
Abstract The spatial correlation between different stationsfor individual components in the regional GNSS networksseems to be significant. mismodelling satelliteorbits, Earth orientation parameters (EOP), largescaleatmospheric effects or satellite antenna phase centrecorrections can all cause regionally correlated errors.This kind of GPS time series errors are referred ascommon mode (CMEs). They usually estimatedwith filtering, such as "stacking".In this paper, we show stacking approach for...
Various methods have been used to model the time-varying curves within global positioning system (GPS) position time series. However, very few consider level of noise a priori before seasonal are estimated. This study is first Wiener filter (WF), already in geodesy denoise gravity records, signals GPS To part signal, first-order autoregressive process employed. The WF then adapted data only those variabilities which significant. Synthetic and real demonstrate that this variation leaves...
We reassess the absolute and relative sea level changes at 38 tide gauge stations in earthquake-affected Western North Pacific for 1993–2015 period, focusing on vertical land motion (VLM) which is crucial narrowing gap between these estimates. In this area, simply discarding all sites, one overestimates average regional rise by more than 0.5 mm/year. Disregarding VLM would lead to misestimating local trends 0.2 7.6 If accounted for, but modeled as linear during entire time span, leads errors...
Abstract We propose a novel approach to classify sets of Global Navigation Satellite System (GNSS) permanent stations as benchmarks for hydrogeodesy. Benchmarks are trusted GNSS whose displacements classified significantly and positively correlated with hydrospheric changes identified in three temporal‐scales: short‐term, seasonal long‐term. use 63 vertical displacement time series processed at the Nevada Geodetic Laboratory period 1998–2021 from located within Amazon basin show that...