Results 61 to 70 of about 625,466 (159)

Surface grain-size mapping of braided channels from SfM photogrammetry [PDF]

Earth Surface Dynamics
Braided channels are known as fluvial systems with a high heterogeneity of physical conditions, resulting from particularly active interacting processes of coarse sediment sorting and transport.
L. Ribet, F. Liébault, L. Borgniet, M. Deschâtres, G. Melun   +4 more
doaj   +1 more source

DIRECT AND INDIRECT GEOREFERENCING WITH A LIGHT-WEIGHT UAV AND AN RTK UAV

International Symposium on Applied Geoinformatics 2021, 2022
Wafa M.A. Thiab, Dursun Zafer Seker
openaire   +1 more source

Distribution and Habitat Suitability of Artemisia annua in China Under Climate Change Scenarios

Ecology and Evolution, Volume 16, Issue 9, September 2026.
We used an optimized MaxEnt model to assess the current and future suitable habitats of Artemisia annua in China under CMIP6 climate scenarios. Suitable areas are projected to contract overall and shift northeastward, primarily constrained by winter temperature and elevation.
Fenguo Zhang, Dongqing Yan, Yanyue Mao, Zhusong Liu, Jiamin Peng, Guanghua Zhao, Yongji Wang   +6 more
wiley   +1 more source

Food Additives and Human Health - Indirect Additives

, 2020
Indirect food additives are the additives that are not intended to be added directly to foods but are added to food contact articles namely, food packaging.
Ribeiro-Santos, Regiane, Seyed M. Nabavi, Ana Sanches-Silva, Regiane Ribeiro-Santos, Sanches-Silva, Ana, Andrade, Mariana, Nabavi, Seyed, Mariana A. Andrade   +7 more
core   +1 more source

Computer Vision–Based Orthorectification and Georeferencing of Aerial Image Sets [PDF]

, 2016
Generating a georeferenced mosaic map from unmanned aerial vehicle (UAV)imagery is a challenging task. Direct and indirect georeferencing methods may fail to generate an accurate mosaic map due to the erroneous exterior orientation parameters stored in ...
Faraji, Mohammadreza, Qi, Xiaojun, Jensen, Austin   +2 more
core   +1 more source

Toward Consistent Canopy Characterization From Low‐Cost UAV Imagery

Ecology and Evolution, Volume 16, Issue 9, September 2026.
We show that UAV‐based crown segmentation can reliably characterize dominant canopy trees in a structurally complex tropical forest. Focusing on these key individuals improves the assessment of forest structure and supports ecological monitoring at multiple scales. ABSTRACT Monitoring tropical forest structure at landscape scale requires cost‐effective
Antoine Plumacker, Bhely Angoboy Ilondea, Nicolas Barbier, Thibauld Collet, Hugo de Lame, Pauline Depoortere, Alexia Favaro, Adeline Fayolle, Marjane Kaddouri, Carmel Mounziegou‐Mounziegou, Pierre Ploton, Zoé Rousseau, Edmond Saint Denis, Paul Tresson, Hadrien Tulet, Arthur Vander Linden, Jean‐François Bastin   +16 more
wiley   +1 more source

Transitioning From Rice‐Wheat to Diversified Rice‐Based Rotations Enhances Rice Production and Mitigates Greenhouse Gas Emissions Across Asia

Earth's Future, Volume 14, Issue 9, September 2026.
Abstract Rice‐wheat cropping systems underpin food security across Asia but also represent major sources of agricultural greenhouse gas (GHG) emissions. Replacing wheat with diversified crop species to create alternative rice‐based cropping systems may become an effective strategy for sustainable production.
Chong Wang, Yujie Liu, Jiangang Liu, Xiaoyu Shi, Da Lv, Jiongchao Zhao, Qingquan Chu   +6 more
wiley   +1 more source

NHM Georeferencing & Mass Digitisation

, 2020
MOBILISE Workshop: Quality issues in georeferencing: From physical collections to digital data repositories for ecological researchDate: 11 February 2020Location: Centrum Nauk Biologiczno-Chemicznych Uniwersytetu Warszawskiego, Warsaw, PolandAn overview ...
Laurence Livermore (100501)
core   +1 more source

Comparative Assessment of the Effect of Positioning Techniques and Ground Control Point Distribution Models on the Accuracy of UAV-Based Photogrammetric Production

Drones
Unmanned aerial vehicle (UAV) systems have recently become essential for mapping, surveying, and three-dimensional (3D) modeling applications. These systems are capable of providing highly accurate products through integrated advanced technologies ...
Muhammed Enes Atik, Mehmet Arkali
doaj   +1 more source

Unit 29 - Discrete Georeferencing [PDF]

, 1990
This unit concludes the module on coordinate systems and geocoding. Several important practical issues are raised here that will be important particularly for those who will be working with economic and demographic databases.
National Center for Geographic Information and Analysis, Unit 29, CC in GIS   +1 more
core   +1 more source