Results 71 to 80 of about 313 (137)

Landslide mapping based on a hybrid CNN-transformer network and deep transfer learning using remote sensing images with topographic and spectral features

International Journal of Applied Earth Observations and Geoinformation
Landslides frequently cause serious property damage and casualties. Therefore, it is crucial to have rapid and accurate landslide mapping (LM) to support post-earthquake landslide damage assessment and emergency rescue efforts.
Lei Wu, Rui Liu, Nengpan Ju, Ao Zhang, Jingsong Gou, Guolei He, Yuzhu Lei   +6 more
doaj   +1 more source

Topographical dynamics based on global and UAV-SfM derived DEM products: a case study of transboundary Teesta River, Bangladesh

Topographical changes in riverine floodplains need to be measured for assessing geomorphological dynamics and protecting floodplain areas, although topographic evaluation in disaster-prone floodplain in South Asia has been limited due to the lack of ...
Faisal, B. M. Refat, Hayakawa, Yuichi S.
core   +1 more source

Influence of Different DEMs Obtained by Remote Sensing on 1D/2D Hydrodynamic Flood Modelling in Urban Riparian Areas

Digital Elevation Models (DEMs) are important for accurate flood simulations, but how different DEM sources affect small-scale urban flood modelling remains poorly understood This study evaluated the influence of three global, open access Digital ...
Guilherme Reis, Kamila Santos, Klebber Formiga, Tatiene Pereira   +3 more
core   +1 more source

Comparative Analysis of Machine-Learning Models for Soil Moisture Estimation Using High-Resolution Remote-Sensing Data

Land
Soil moisture is an important component of the hydrologic cycle and ecosystem functioning, and it has a significant impact on agricultural production, climate change and natural disasters.
Ming Li, Yueguan Yan
doaj   +1 more source

Accuracy assessment of open DTM and DSM products in urban environments

Geo-spatial Information Science
The digital terrain model (DTM) and digital surface model (DSM) are fundamental data used in many geospatial applications. There are several global open DTM and DSM products.
Jing Liu, Xia Wang, Dalei Han, Qin Ma, Long Li, Peiqi Yang   +5 more
doaj   +1 more source

Global Flood Vulnerability Model: Building-Level Assessment Using Multi-Source Remote Sensing

Remote Sensing
Remote sensing enables building-level flood vulnerability assessment without field surveys, yet existing approaches require site-specific calibration or produce categorical outputs without physical interpretability.
Sakiru Olarewaju Olagunju, Ademi Sharipova, Adina Serikkyzy, Dariga Satybaldiyeva, Huseyin Atakan Varol, Ferhat Karaca   +5 more
doaj   +1 more source

MODELO DIGITAL DE ELEVAÇÃO A PARTIR DE DADOS DE GNSS RTK NA PLANÍCIE DE INUNDAÇÃO DO RIO PIRATINI EM PEDRO OSÓRIO E CERRITO

Boletim Geográfico do Rio Grande do Sul
Este estudo apresenta o desenvolvimento de um Modelo Digital de Elevação (MDE) de alta precisão para a planície de inundação do rio Piratini, abrangendo as áreas urbanas dos municípios de Pedro Osório e Cerrito (RS).
Eduardo Luceiro Santana, Laura Martins Bueno, Aryane Araujo Rodrigues, Tamara Leitzke Caldeira Beskow, Samuel Beskow   +4 more
doaj   +2 more sources

Unmasking spatio-temporal variability of the kerguelen archipelago: radiometric landscapes as new proxies

GIScience & Remote Sensing
This study conducts the first regional mapping exercise of landscape dynamics of the Kerguelen Archipelago; a remote sub-Antarctic archipelago located in the southern Indian Ocean.
Louise Lemettais, Eric Masson, Damien Fourcy, Agnès Bégué, Vincent Favier, Charles Amory, Samuel Alleaume, Roy El Hourany, Jacques Descloitres, Eric Armynot du Châtelet   +9 more
doaj   +1 more source

On the relationship between maximum tree height, elevation and climate in European mountain ranges [DATASETS]

<p><span>The dataset associated with this paper comprises GEDI 2A data collected from 2019/05/01 to 2020/09/03, along with ancillary data (NASADEM & WorldClim) at the footprint level.
Ameztegui, Aitor, Rodrigues, Marcos Rodrigues, Lluís, Coll, Gelabert Vadillo, Pere Joan, Cristina, Vega-García   +4 more
core   +1 more source

METODOLOGIA PARA PRÉ-PROCESSAMENTO DE MODELOS DIGITAIS DE ELEVAÇÃO [PDF]

The dissemination of altimetric data, through Digital Elevation Models (DEM), allowed the advancement of several scientific areas, more specifically Geomorphometry. However, the DEM may present noises, compromising the final results.
Lima Silva, Sonia Maria, Castilho da Costa, Vivian, da Paixão Marques Filho, Jorge   +2 more
core   +1 more source