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Geomatics, Volume 6, Issue 1

2026 February - 21 articles

Cover Story: Neural Radiance Fields (NeRFs) have recently emerged as a powerful approach for image‑based 3D reconstruction. This study compares a NeRF pipeline (Nerfstudio) with a conventional SfM‑MVS workflow (Agisoft Metashape Professional) across diverse datasets differing in scale, camera configurations, and lighting conditions. Reconstructed models are evaluated for accuracy, completeness, planarity, and point cloud density. Results show that although NeRF was not originally designed for metric precision, it can deliver spatially consistent reconstructions in controlled settings, providing a complementary tool to traditional photogrammetry. Challenges remain in complex geometries, shadowed regions, and large‑scale scenes. View this paper
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Articles (21)

  • Article
  • Open Access
341 Views
30 Pages

16 February 2026

Accurate shoreline positioning is critical for coastal monitoring and management, yet deep learning shoreline products are often evaluated using conventional waterbody segmentation metrics that do not explicitly measure boundary alignment. Using 20,6...

  • Article
  • Open Access
316 Views
21 Pages

Mapping Paddy Rice Using Segmentation Techniques and Phenological Metrics Derived from Sentinel-2 Time Series in Senegal

  • Fama Mbengue,
  • Mamadou Adama Sarr,
  • Egor Prikaziuk,
  • Gayane Faye,
  • Mamadou Simina Dramé and
  • Abdoul Aziz Diouf

14 February 2026

Rice field mapping is essential for effective agricultural and water resource management due to high land pressure. This study aims to map paddy rice by combining segmentation techniques and phenological metrics derived from optical time series. Thus...

  • Article
  • Open Access
434 Views
27 Pages

GeoFlood Enhancement for Robust Flood Inundation Mapping in Flat Terrain Zones

  • Marwa Wahba,
  • Ayman G. Awadallah,
  • Nabil A. AwadAllah and
  • Maysara Ghaith

13 February 2026

Flash floods in arid regions dictate a rapid flood inundation mapping for early warning. However, hydrodynamic models, such as HEC-RAS, provide accurate flood mapping but require extensive topographical data and high computational resources. The GeoF...

  • Article
  • Open Access
379 Views
21 Pages

11 February 2026

In this study, we investigated the effects of flight and processing parameters on the accuracy of UAV-based photogrammetric digital terrain models (DTM) generated from RGB imagery in ageing deciduous and mixed forest stands. Four 100 × 100 m sa...

  • Article
  • Open Access
449 Views
41 Pages

6 February 2026

Natural hydrogen has gained attention as a low-carbon energy vector, and some reported surface expressions have been linked to subcircular patterns, or fairy circles (FC), that may be detectable in multispectral satellite imagery. The Carolina Bays r...

  • Article
  • Open Access
540 Views
14 Pages

Qualitative Model for Hurricane-Induced Debris Flow Prediction: A Case Study of the Impact of Hurricane Maria (2017) in Puerto Rico

  • Yuri Gorokhovich,
  • Ivan V. Morozov,
  • Günay Erpul,
  • Chia-Ying Lee,
  • Carolynne Hultquist and
  • Zola Qingyang Yin

5 February 2026

This study applies a qualitative Geographic Information Systems model that integrates satellite-derived wind and rainfall data to predict potential debris-flow locations in Puerto Rico triggered by Hurricane Maria (2017). A key innovation of the mode...

  • Article
  • Open Access
1,151 Views
31 Pages

3 February 2026

Illegal dumping poses serious risks to ecosystems and human health, requiring effective and timely monitoring strategies. Advances in uncrewed aerial vehicles (UAVs), photogrammetry, and deep learning (DL) have created new opportunities for detecting...

  • Article
  • Open Access
348 Views
19 Pages

Generalizing Human-Driven Wildfire Ignition Models Across Mediterranean Regions Using Harmonized Remote-Sensing and Machine-Learning Data

  • Nicola Aimane Dimarco,
  • Ibtissam Faraji,
  • Miriam Wahbi,
  • Mustapha Maatouk,
  • Hakim Boulaassal,
  • Otman Yazidi Aalaoui and
  • Omar El Kharki

1 February 2026

Wildfires represent a growing environmental and socio-economic threat across Mediterranean landscapes, where prolonged summer droughts and human activity increasingly shape ignition susceptibility. This study presents an open and reproducible modelli...

  • Article
  • Open Access
324 Views
21 Pages

28 January 2026

The mapping of vineyard cultivars presents a substantial challenge in digital agriculture due to the crop’s high intra-class heterogeneity and low inter-class variability. High-dimensional spectral datasets, such as hyperspectral or spectrometr...

  • Article
  • Open Access
438 Views
20 Pages

28 January 2026

Intensifying urbanisation in the Arctic, particularly in spatially constrained coastal and island cities, requires reliable information on long-term land-use/land-cover (LULC) change to assess environmental impacts and support urban planning. However...

  • Article
  • Open Access
782 Views
29 Pages

27 January 2026

Knowledge about vessel activity in port areas and around major industrial zones provides insights into economic trends, supports decision-making for shipping and port operators, and contributes to maritime safety. Vessel data from terrestrial receive...

  • Article
  • Open Access
616 Views
28 Pages

One of the most significant impacts of climate change is sea-level rise, which is increasingly threatening to the coastal setting, infrastructure, and socioeconomic systems. Since a change at the sea level is spatially non-uniform and highly modulate...

  • Article
  • Open Access
536 Views
23 Pages

Remote Sensing-Based Mapping of Forest Above-Ground Biomass and Its Relationship with Bioclimatic Factors in the Atacora Mountain Chain (Togo) Using Google Earth Engine

  • Demirel Maza-esso Bawa,
  • Fousséni Folega,
  • Kueshi Semanou Dahan,
  • Cristian Constantin Stoleriu,
  • Bilouktime Badjaré,
  • Jasmina Šinžar-Sekulić,
  • Huaguo Huang,
  • Wala Kperkouma and
  • Batawila Komlan

Accurate estimation of above-ground biomass (AGB) is vital for carbon accounting, biodiversity conservation, and sustainable forest management, especially in tropical regions under strong anthropogenic pressure. This study estimated and mapped AGB in...

  • Article
  • Open Access
493 Views
19 Pages

The Spherical Harmonic Representation of the Geoid

  • Robert Tenzer,
  • Wenjin Chen,
  • Shengwang Yu and
  • Zhengfeng Jin

Global Gravitational Models (GGMs) describe the Earth’s external gravitational field by a set of spherical harmonic (Stokes) coefficients. These coefficients are routinely used to compute the geoid model, while disregarding the upper continenta...

  • Article
  • Open Access
449 Views
19 Pages

Assessing Historical Shoreline Change and Forecasting Future Trends Along Monrovia’s Coastline, Liberia

  • Titus Karderic Williams,
  • Tarik Belrhaba,
  • Abdelahq Aangri,
  • Youssef Fannassi,
  • Zhour Ennouali,
  • John C. L. Mayson,
  • George K. Fahnbulleh,
  • Aıcha Benmohammadi and
  • Ali Masria

Coastal settlements worldwide face increasing threats from erosion, and the Monrovia coastline in Liberia is no exception. This study investigates shoreline dynamics along a 20.5 km stretch of Monrovia’s coast, which is characterized by low-lyi...

  • Article
  • Open Access
343 Views
27 Pages

This study presents a validated framework to quantify regional sea-level risk on U.S. coasts by (i) extracting trends and seasonality from satellite altimetry (ADT, GMSL), (ii) learning regional dynamical regimes via PCA-embedded KMeans on gridded AD...

  • Article
  • Open Access
743 Views
28 Pages

Recent advances in image-based 3D reconstruction have seen a shift from traditional photogrammetric techniques to learning-based methods, with Neural Radiance Fields (NeRFs) emerging as a powerful alternative. This study evaluates NeRF (via Nerfstudi...

  • Article
  • Open Access
1 Citations
462 Views
21 Pages

Climate change and related weather extremes are increasingly having an impact on all aspects of life. The main objective of the research was to analyze the impact of the most important meteorological elements and the image data of various water bodie...

  • Article
  • Open Access
467 Views
20 Pages

Low-Cost Panoramic Photogrammetry: A Case Study on Flat Textures and Poor Lighting Conditions

  • Ondrej Benko,
  • Marek Fraštia,
  • Marián Marčiš and
  • Adrián Filip

The article addresses the issue of panoramic photogrammetry for the reconstruction of interior spaces. Such environments often present challenges, including poor lighting conditions and surfaces with variable texture for photogrammetric scanning. In...

  • Article
  • Open Access
603 Views
18 Pages

Developing a Predictive Model for Gender-Based Violence in Urban Areas Using Open Data

  • Sandra Hernandez-Zetina,
  • Angel Martin-Furones,
  • Alvaro Verdu-Candela,
  • Carlos Martinez-Montes and
  • Ana Belen Anquela-Julian

20 December 2025

Gender-based violence (GBV) in urban contexts is a complex, multifactorial phenomenon shaped by socioeconomic, territorial, and contextual factors. This study aims to develop a predictive model for GBV-related crimes in Valencia (Spain), using open g...

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Geomatics - ISSN 2673-7418