Results 31 to 40 of about 6,735 (51)

Global Eustatic Sea-Level Variations for the Approximation of Geocenter Motion from Grace

Journal of Geodetic Science, 2014
Global degree-1 coefficients are derived by means of the method by Swenson et al. (2008) from a model of ocean mass variability and RL05 GRACE monthly mean gravity fields.
Bergmann-Wolf Inga, Zhang Liangjing, Dobslaw Henryk   +2 more
doaj   +1 more source

Contribution of SAR/RADARSAT-1 and ASAR/ENVISAT images to geological structural mapping and assessment of lineaments density in Divo-Oume area (Côte d’Ivoire)

Egyptian Journal of Remote Sensing and Space Sciences, 2020
Access to drinking water and management of water resources are still a real issue in Côte d'Ivoire’s granitic and volcano-sedimentary basement regions. This situation is due to the combination of many factors including poor knowledge of hydrogeological ...
Bertrand Ouessé Tagnon, Vincent Tchimou Assoma, Jules Mangoua Oi Mangoua, Aristide Gountôh Douagui, Fernand Koffi Kouamé, Issiaka Savané   +5 more
doaj   +1 more source

Spatial analysis of particulate matter (PM10) using MODIS aerosol optical thickness observations and GIS over East Malaysia

Egyptian Journal of Remote Sensing and Space Sciences, 2023
Even though there are expert monitoring and assessment stations in large cities, air quality monitoring and measurement have a high cost and face significant issues. Data on air pollution can be acquired from remote sensing satellites for large areas and
Alaa Omer Najim, Maha Adnan Meteab, Abed Tuama Jasim, Qayssar Mahmood Ajaj, Huda Jamal Jumaah, Maryam Hassan Ahmed Sulyman   +5 more
doaj   +1 more source

On weighted total least squares adjustment for solving the nonlinear problems

Journal of Geodetic Science, 2014
In the classical geodetic data processing, a non- linear problem always can be converted to a linear least squares adjustment. However, the errors in Jacob matrix are often not being considered when using the least square method to estimate the optimal ...
Hu C., Chen Y., Peng Y.
doaj   +1 more source

Detection of a sinusoidal oscillation of unknownfrequency in a time series – a geodetic approach

Journal of Geodetic Science, 2014
Geodetic and geophysical time series may containsinusoidal oscillations of unknown angular frequency.Often it is required to decide if such sinusoidaloscillations are truly present in a given time series. Herewe pose the decision problem as a statistical
Lehmann R.
doaj   +1 more source

On a unique identification of 3D features between BIM and GIS for 3D Cadastre

Reports on Geodesy and Geoinformatics
The recent research has demonstrated both the potential of building information management (BIM) for the 3D cadastre, especially for legal spaces of building units and the advantage of the combination of physical and legal boundaries for their ...
Janečka Karel, Vaněk Martin
doaj   +1 more source

Investigation of the accuracy of BeiDou, QZSS and QZSS/BeiDou satellites configuration for short, medium and long baselines in the Asia-Pacific regions

Reports on Geodesy and Geoinformatics
The field of satellite navigation has seen significant advancements due to the fast development of multi-constellation Global Navigation Satellite Systems (GNSS).
Pirti Atinç
doaj   +1 more source

Spatial database applications for network analysis: Case study of bicycle accessibility of forested areas in the Poznań Metropolitan Area, Poland

Reports on Geodesy and Geoinformatics
The main aim of this paper is to introduce a solution for network analysis based on pgRouting to resolve the bicycle accessibility of forested green spaces.
Kostecki Robert
doaj   +1 more source

Comparative analysis of the performance of selected machine learning algorithms depending on the size of the training sample

Reports on Geodesy and Geoinformatics
The article presents an analysis of the effectiveness of selected machine learning methods: Random Forest (RF), Extreme Gradient Boosting (XGB), and Support Vector Machine (SVM) in the classification of land use and cover in satellite images.
Kupidura Przemysław, Kępa Agnieszka, Krawczyk Piotr   +2 more
doaj   +1 more source

Investigating diverse photogrammetric techniques in the hazard assessment of historical sites of the Museum of the Coal Basin Area in Będzin, Poland

Reports on Geodesy and Geoinformatics
Assessing the condition of historical sites at risk requires an interdisciplinary approach based on combining multiple measurement technologies. Due to the dynamic development of technology, non-invasive remote sensing methods are gaining significant ...
Świerczyńska Ewa, Karsznia Krzysztof, Książek Krzysztof, Odziemczyk Waldemar   +3 more
doaj   +1 more source