Katarzyna Pajak

Katarzyna Pajak
University of Warmia and Mazury in Olsztyn · Department of Geoinformation and Cartography

PhD

About

22
Publications
1,029
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41
Citations
Introduction

Publications

Publications (22)
Article
Tide gauge observations provide sea level relative to the Earth’s crust, while satellite altimetry measures sea level variations relative to the centre of the Earth’s mass. Local vertical land motion can be a significant contribution to the measured sea level change.Satellite altimetry was traditionally used to study the open ocean, but this techno...
Article
Full-text available
The main aim of the article was to analyse the actual accuracy of determining the vertical movements of the Earth’s crust (VMEC) based on time series made of four measurement techniques: satellite altimetry (SA), tide gauges (TG), fixed GNSS stations and radar interferometry. A relatively new issue is the use of the persistent scatterer InSAR (PSIn...
Poster
Full-text available
The crustal movements of the earth can be determined using different data sets. The data sets are characterized by different levels of accuracy, noise, time resolution, and spatial resolution. The goal of the paper is to determine the vertical crustal movements with using the data from satellite altimetry (SA) and tide gauges (TG), permanent GNSS s...
Article
Full-text available
The present-day sea-level rise is a major indicator of climate change. The sea level in Europeanseas has risen at a rate of 2.5 to 4 millimeters per year (von Schuckmann et al., 2018). The aim ofthis paper is to present the sea level variability in the Baltic Sea, as based on satellite altimetry.For this purpose, the paper presents a methodology of...
Article
In this paper, seasonal sea level variations have been determined at five locations in the Baltic Sea from satellite altimetry for the period 1993–2015. The results were compared to tide gauge water level data. Annual and semi-annual amplitudes have been investigated for both sea level anomalies and tide gauge water level. It was found that the two...
Article
Full-text available
The average sea level fluctuations are connected with the occurrence of physical phenomena, such as changes in temperature and salinity, which influence the changes in water density. The sea level change modelling is used widely to evaluate and study shoreline and climate changes. An increase or decrease in water temperature and salinity may have a...
Article
Full-text available
The average sea level fluctuations are connected with the occurrence of physical phenomena, such as changes in temperature and salinity, which influence the changes in water density. The sea level change modelling is used widely to evaluate and study shoreline and climate changes. An increase or decrease in water temperature and salinity may have a...
Conference Paper
Regional sea level changes occur at different time scales. Global warming of the oceans, glacial and polar ice melting and meteorological or hydrological factors are major contributors to long-term sea level rise. In the recent years, a lot of attention has been paid to research concerning sea level change and seasonal fluctuations. The main object...
Conference Paper
Due to the realization of the Three Gorges Dam on the Yangtze River and its content of 40 billion tons of water many geodynamical consequences can still be observed. It is obvious that global geodynamical changes are noticeable at whole basin of the Yangtze river. Such changes can be observed by the GRACE (Gravity Recovery and Climate Experiment) g...
Conference Paper
The mean Baltic sea level fluctuations are mainly due to long-term changes in the meteorological and hydrological phenomena, occurring within a few decades. In this paper, the analyses of mean Baltic sea level changes on the three locations in Baltic Sea, in the period of January 2003 – December 2015. We estimate seasonal mean Baltic sea level chan...
Article
Rise in sea level is associated with global warming and melting of glaciers and ice sheets. Precise monitoring of changes in the mean sea level of the Baltic Sea is very important for understanding not only the climate, but also the socioeconomic consequences of any rise in sea level. Opening and closing connections of the Baltic Sea with the ocean...
Article
Full-text available
The number of point clouds provided by LiDAR technology can be sometimes seen as a problem in development and further processing for given purposes (e.g. Digital Terrain Model (DTM) generation). Therefore, there is still a need to reduce the obtained big datasets. Reducing can be done, inter alia, by reducing the size of the set or by generating th...
Poster
The objective of this study was to co-register the point clouds acquired by airborne LiDAR and terrestrial LiDAR and use these for hydrological purposes like exploring and monitoring river area [4]. Because ALS (Airborne Laser Scanning) and TLS (Terrestrial Laser Scanning) acquire data from different viewpoints, the integration of these systems is...
Article
3D modelling of objects is a way of obtaining information, while the visualization of geospatial data is becoming a production task in the scope of surveying. Visualization of geospatial data provides effective tools for analysis information about the land surface, land cover, its features, properties etc. Computer animations, both 2D images and 3D...
Article
The subject of the paper is creating a land surface representation in the form of DTM (digital terrain model), widely used in many areas nowadays - from the environment protection through engineering projects to the innovative military applications. The aim of the paper is to present the possibilities of using geostatistical interpolation method -...

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Projects

Project (1)
Archived project
Using mareographic data, analysis of series, defining errors, SLA. Investigation of relationship between sea level variations computed on the basis of tide gauge and satellite altimetry data