Results 61 to 70 of about 487 (148)

Extracting Terrain Texture Features for Landform Classification Using Wavelet Decomposition

ISPRS International Journal of Geo-Information, 2021
Accurate landform classification is a crucial component of geomorphology. Although extensive classification efforts have been exerted based on the terrain factor, the scale analysis to describe the macro and micro landform features still needs standard ...
Yuexue Xu, Shengjia Zhang, Jinyu Li, Haiying Liu, Hongchun Zhu   +4 more
doaj   +1 more source

High‐Resolution Digital Terrain Model and Land‐Surface Parameters of São Sebastião and Ilhabela, Southeastern Brazil

Geoscience Data Journal, Volume 13, Issue 2, April 2026.
The first openly accessible 2 m‐resolution lidar‐based DTM and an extensive set of land‐surface parameters (LSPs) for the region of São Sebastião and Ilhabela, southeastern Brazil, reveal geomorphological features previously indiscernible, including past landslide deposits, drainage captures and structural lineaments.
Rebeca Durço Coelho, Gabriella Labate Frugis, Camila Duelis Viana, Carlos Henrique Grohmann   +3 more
wiley   +1 more source

Quantification of global Digital Elevation Model (DEM) – A case study of the newly released NASADEM for a river basin in Central Vietnam

Journal of Hydrology: Regional Studies, 2023
Study region: Lai Giang River basin, Central Vietnam Study focus: The Digital Elevation Models (DEM) is essential in hydrological modeling and water cycle understanding.
Thanh-Nhan-Duc Tran, Binh Quang Nguyen, Ngoc Duong Vo, Manh-Hung Le, Quoc-Dinh Nguyen, Venkataraman Lakshmi, John D. Bolten   +6 more
doaj   +1 more source

Frictional Heterogeneity Governs Slip Partitioning and Seismic Hazard in the 2023 Turkey Earthquake Doublet

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Quantifying fault frictional properties is fundamental to understanding slip behavior and seismic hazard. We analyze 2 years of Sentinel‐1 SAR data following the 2023 Turkey earthquake doublet using Independent Component Analysis‐enhanced Small Baseline Subset‐InSAR, to resolve postseismic deformation and invert for afterslip on the East ...
Jianlong Chen, Peizhen Zhang, Xin Qiao, Zicheng Huang, Lejun Lu   +4 more
wiley   +1 more source

Understanding Compound Pluvial–Fluvial Flood Hazards Under Climate Change: A Case Study of the Lower Tone River Basin, Japan

Hydrological Processes, Volume 40, Issue 2, February 2026.
A hindcast of Typhoon Hagibis inundation in the Lower Tone River Basin demonstrates reasonable consistency with observations. Scenario‐based simulations were performed to quantify flood hazards in this coastal watershed until the end of the twenty‐first century. Agricultural lands, most of which were reclaimed from lakebeds, face a greater flood hazard
Shuoyuan Liang, Tsuyoshi Kinouchi, Paul D. Bates, Gang Zhao   +3 more
wiley   +1 more source

Spatial Heterogeneity and Drivers of Vertical Error in Global DEMs: An Explainable Machine Learning Approach in Complex Subtropical Coastal Zones

Remote Sensing
Digital elevation models (DEMs) are foundational for critical tasks such as flood inundation simulation, disaster risk assessment, and ecosystem monitoring in coastal zones, yet their vertical accuracy is significantly compromised by complex terrain and ...
Junhui Chen, Fei Tang, Heshan Lin, Bo Huang, Xueping Lin   +4 more
doaj   +1 more source

Analysis of free large Area covering Elevation Models and Improvement by ICESat-2 [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
With TDX-EDEM (EDEM), AW3D30, SRTM and ASTER GDEM-3 (GDEM) global or nearly global free elevation models are available, which are in several countries more accurate than the Digital Elevation Models (DEMs) of the national survey administrations.
K. Jacobsen
doaj   +1 more source

Expansion of Exotic Mangroves Sonneratia apetala in China Since Start of the SDGs

Earth's Future, Volume 14, Issue 2, February 2026.
Abstract Since the Sustainable Development Goals (SDGs) came into effect in 2016, mangroves have received unprecedented attention for carbon sequestration capacity. In China, previous studies focused on the total area of mangroves using remote sensing technique, neglecting expansion of the exotic mangrove species Sonneratia apetala, even when it is ...
Yubin Li, Chuanpeng Zhao, Mingming Jia, Rong Zhang, Chunying Ren, Zongming Wang   +5 more
wiley   +1 more source

Morphometric characterization and erosion assessment of gullies in the lateritic badlands of Eastern India using ALOS AW3D30 DEM and topographic indices

, 2022
The present geomorphic study analyzes the morphometric anomalies of the lateritic badlands (West Bengal, India) to understand the erosion intensity, triggering factors and landscape evolution using the ALOS AW3D30 DEM and quantitative techniques of ...
Soumya Kundu, Sandipan Ghosh
core   +1 more source

A pan‐European citizen science study shows population size, climate and land use are related to biased morph ratios in the heterostylous plant Primula veris

Journal of Ecology, Volume 114, Issue 1, January 2026.
A large‐scale citizen science study involving thousands of cowslip (Primula veris) observations from all over Europe revealed an unexpected prevalence of S‐morphs over L‐morphs, which was influenced by climatic as well as land use factors. Furthermore, general morph ratios were often unbalanced with the strongest shifts occurring in smaller populations.
Tsipe Aavik, Triin Reitalu, Marianne Kivastik, Iris Reinula, Sabrina Träger, Evelyn Uuemaa, Marta Barberis, Arjen Biere, Sílvia Castro, Sara A. O. Cousins, Anikó Csecserits, Eleftherios Dariotis, Živa Fišer, Grzegorz Grzejszczak, Cuong Nguyen Huu, Kertu Hool, Hans Jacquemyn, Margaux Julien, Marcin Klisz, Alexander Kmoch, Nikos Krigas, Attila Lengyel, Michael Lenhard, Desalew M. Moges, Zuzana Münzbergová, Ülo Niinemets, Baudewijn Odé, Hana Pánková, Meelis Pärtel, Ricarda Pätsch, Theodora Petanidou, Jan Plue, Radosław Puchałka, Froukje Rienks, Ioulietta Samartza, Julie K. Sheard, Bojana Stojanova, Joachim P. Töpper, Georgios Tsoktouridis, Spas Uzunov, Martin Zobel   +40 more
wiley   +1 more source