Results 31 to 40 of about 176,687 (204)

An Object-Based Ground Filtering of Airborne LiDAR Data for Large-Area DTM Generation

Remote Sensing, 2023
Digital terrain model (DTM) creation is a modeling process that represents the Earth’s surface. An aptly designed DTM generation method tailored for intended study can significantly streamline ensuing processes and assist in managing errors and uncertainties, particularly in large-area projects.
Hunsoo Song, Jinha Jung
openaire   +4 more sources

Efficiency of local minima and GLM techniques in sinkhole extraction from a LiDAR-based terrain model

International Journal of Digital Earth, 2019
The aim of this paper was to study reliable automated delineation possibilities of karst sinkholes using a LiDAR-based digital terrain model (DTM) with pixel-based classifications.
Péter Enyedi, Melinda Pap, Zoltán Kovács, László Takács-Szilágyi, Szilárd Szabó   +4 more
doaj   +1 more source

Forest road design and calculation of biomass removal volume using Unmanned Aerial Vehicles (UAVs) combined with LiDAR sensors [PDF]

E3S Web of Conferences
This study explores the application of Unmanned Aerial Vehicles (UAVs) equipped with LiDAR and photogrammetric sensors for designing a third-class forest road and estimating biomass removal volume in a protected mountainous region of Northern Greece ...
Kolkos Georgios, Katagis Thomas, Arabatzis Garyfallos, Kantartzis Apostolos, Stergiadou Anastasia   +4 more
doaj   +1 more source

Retrieval of DTM under Complex Forest Stand Based on Spaceborne LiDAR Fusion Photon Correction [PDF]

Remote Sensing, 2022
The new generation of satellite-borne laser radar Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) data has been successfully used for ground information acquisition. However, when dealing with complex terrain and dense vegetation cover, the accuracy of the extracted understory Digital Terrain Model (DTM) is limited. Therefore, this paper proposes
Bin Li, Guangpeng Fan, Tianzhong Zhao, Zhuo Deng, Yonghui Yu   +4 more
openaire   +2 more sources

Intercomparison of Water Vapor Data Measured with Lidar during IHOP_2002. Part I: Airborne to Ground-Based Lidar Systems and Comparisons with Chilled-Mirror Hygrometer Radiosondes [PDF]

, 2007
The water vapor data measured with airborne and ground-based lidar systems during the International H2O Project (IHOP_2002), which took place in the Southern Great Plains during 13 May–25 June 2002 were investigated.
Wulfmeyer, Volker, R. FERRARE, E. V. BROWELL, Ferrare, Richard, J. WANG, Ismail, Syed, S. KOOI, D. SUMMA, Schaberl, Thorsten, B. B. DEMOZ, Andreas Behrendt, Richard Ferrare, Whiteman, David N., T. SCHABERL, S. ISMAIL, DI GIROLAMO, Paolo, V. WUFMEYER, Demoz, Belay B., A. BEHRENDT, Kooi, Susan, Ehret, Gerhard, Summa, Donato, Demoz, Belay, Browell, Edward V., Kiemle, Christoph, Volker Wulfmeyer, Wang, Junhong, Behrendt, Andreas, Christoph Kiemle, Paolo Di Girolamo, D. N. WHITEMAN, Gerhard Ehret, Donato Summa, Syed Ismail, Belay B. Demoz, Bauer, Hans-Stefan, C. KIEMLE, Susan Kooi, H. S. BAUER, David N. Whiteman, Thorsten Schaberl, Junhong Wang, Browell, Edward, Girolamo, Paolo, G. EHRET, Edward V. Browell, Hans-Stefan Bauer, Whiteman, David   +47 more
core   +1 more source

Water level and volume estimations of the Albano and Nemi lakes (central Italy)

Annals of Geophysics, 2008
In April 2006 an airborne laser scanning (LIDAR) survey of the Albano and Nemi craters was carried out to obtain a high resolution digital terrain model (DTM) of the area.
A. Mazzoni, V. Baiocchi, G. Pietrantonio, F. Riguzzi   +3 more
doaj   +1 more source

Airborne high spectral resolution lidar observation of pollution aerosol during EUCAARI-LONGREX [PDF]

, 2013
Airborne high spectral resolution lidar observations over Europe during the EUCAARI-LONGREX field experiment in May 2008 are analysed with respect to the optical properties of continental pollution aerosol.
A. Fix, Minikin, Andreas, M. Esselborn, Groß, Silke, Abicht, Florian, Fix, Andreas, A. Minikin, Fix, A., Abicht, F., Esselborn, Michael, S. Groß, F. Abicht, Wirth, M., Minikin, A., Esselborn, M., Groß, S., M. Wirth, Wirth, Martin   +17 more
core   +2 more sources

Development of a laser for differential absorption lidar measurement of atmospheric carbon dioxide [PDF]

, 2014
In the quest for a better understanding of climate change, greater importance is attached to monitoring the levels of atmospheric carbon dioxide to gain an improved knowledge of sources and sinks.
Cameron F. Rae, John B. Moncrieff, Rae, Cameron F., Moncrieff, John B., James W. Jack, Jack, James W., Moncrieff, John, Robinson, Iain, Rae, Cameron, Iain Robinson, Jack, Jim   +10 more
core   +1 more source

AUTOMATIC EXTRACTION OF DTM FROM LOW RESOLUTION DSM BY TWOSTEPS SEMI-GLOBAL FILTERING [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Automatically extracting DTM from DSM or LiDAR data by distinguishing non-ground points from ground points is an important issue. Many algorithms for this issue are developed, however, most of them are targeted at processing dense LiDAR data, and lack ...
Y. Zhang, Y. Zhang, Y. Zhang, X. Li
doaj   +1 more source

LiDAR DTM: artifacts, and correction for river altitudes

Investigaciones Geográficas, Boletín del Instituto de Geografía, 2016
Abstractlidar data provide high-resolution Digital Elevation Models (dems), but some artifacts affect their accuracy and precision. This includes the dems generated by the Mexican National Institute of Statistics and Geography (Instituto Nacional de Estadisitica y Geografia, inegi), especially lidar Digital Terrain Models (dtms) related to the bare ...
Jean-François Parrot, Carolina Ramírez Núñez   +1 more
openaire   +3 more sources