Results 61 to 70 of about 24,513,203 (206)

Assessment of Sentinel-2-MSI Atmospheric Correction Processors and In Situ Spectrometry Waters Quality Algorithms

Remote Sensing, 2022
The validation of algorithms developed from in situ reflectance to estimate water quality variables has the challenge of atmospheric correction (AC) when applied to satellite images. Estimating water quality variables from satellite images requires an accurate estimation of remote sensing reflectances (Rrs) which vary according to the AC applied ...
Xavier Sòria-Perpinyà, Jesús Delegido, Patricia Urrego, Antonio Ruiz-Verdú, Juan Miguel Soria, Eduardo Vicente, José Moreno 0001   +6 more
openaire   +3 more sources

Estimation Accuracy Obviously Increased of Soil Organic Carbon Content Based on Habitat Patches Scale Using Interpretable Machine Learning in Southwest China

Land Degradation &Development, EarlyView.
ABSTRACT Although machine learning models have been successfully applied to estimate soil organic carbon (SOC), the lack of interpretability research has resulted in the absence of mechanistic explanations for these models. Therefore, in this study, we adopted the following workflow: first, we divided the whole study area into several subregions using ...
Wei Zhou, Jieyun Xiao, Haotian Liu, Lu Xu, Keming Wang   +4 more
wiley   +1 more source

Multi-Temporal Sentinel-1 SAR and Sentinel-2 MSI Data for Flood Mapping and Damage Assessment in Mozambique

, 2023
Floods are one of the most frequent natural disasters worldwide. Although the vulnerability varies from region to region, all countries are susceptible to flooding.
Andrea Nascetti, Manuel Nhangumbe, Yifang Ban   +2 more
core   +1 more source

Extraction of Cladophora blooms in Qinghai Lake based on multi-source satellite remote sensing images and super-resolution method

Research in Cold and Arid Regions
Cladophora blooms, a type of large filamentous green algae, have garnered considerable attention in recent years due to their substantial outbreaks associated with climate change.
XiaoLing Gao, XiaoJun Yao, TongYu Wu, Cong Zhang   +3 more
doaj   +1 more source

Comparison of the Normalized Difference Vegetation Index (NDVI) Between the Sensors OLI-Landsat Satellite-8 and MSI-Sentinel-2 Satellite in Semi-Arid Region [PDF]

Anuário do Instituto de Geociências, 2019
The use of remote sensing techniques in support of environmental studies has become common in recent years, and the availability of satellite images for free has also boosted this growth. The use of orbital images for the accomplishment of these studies
Ulisses Alencar Bezerra, Leidjane Maria Maciel de Oliveira, Ana Lúcia Bezerra Candeias, Bernardo Barbosa da Silva, Antônio Celso Leite de Sousa Leite, Luisa Thaynara Muricy de Souza Silva   +5 more
doaj   +1 more source

Land Degradation, Cultural Ecosystem Services, and Ecosystem Disservices in the Sumapaz Páramo, Colombia: An Integrated Socioecological Assessment

Land Degradation &Development, EarlyView.
ABSTRACT Understanding the relationships among land degradation, ecosystem functioning and human well‐being is essential for conserving tropical high‐mountain ecosystems. This study examined the relationships among land degradation, Cultural Ecosystem Services (CES), ecosystem disservices (EDS) and visitor perceptions at Laguna Colorados in the Sumapaz
Victor Fabian Forero Ausique, Diana Cristina Díaz Guevara, Silvana Daniela Forero Ausique, Yetfersson Arley Serrato Velosa, Favio Cala Vitery   +4 more
wiley   +1 more source

Mapping the Forage Nitrogen-Phosphorus Ratio Based on Sentinel-2 MSI Data and a Random Forest Algorithm in an Alpine Grassland Ecosystem of the Tibetan Plateau

Remote Sensing, 2020
Nondestructive and accurate estimating of the forage nitrogen–phosphorus (N:P) ratio is conducive to the real-time diagnosis of nutrient limitation and the formulation of a management scheme during the growth and development of forage.
Jinlong Gao, Jie Liu, Tiangang Liang, Mengjing Hou, Jing Ge, Qisheng Feng, Caixia Wu, Wenlong Li   +7 more
doaj   +1 more source

Methionine Regulates Antitumour Function of CD8+ T Cells Through Polyamine Synthesis

Immunology, EarlyView.
Methionine restriction in vitro enhances CD8+ T cell effector function by suppressing polyamine synthesis and progressively induces the co‐expression of PD‐1 and TIM‐3. Consistently, sustained dietary methionine restriction diminishes the efficacy of adoptive T cell therapy (ACT) and promotes the expression of terminal exhaustion‐associated markers ...
Tian Zhao, Gillian A. Carleton, Sam Preshaw, Sarah MacPherson, Madison Shiyuk, Joseph Monaghan, Jun Han, Oro Uchenunu, Robert Rottapel, Ralph J. DeBerardinis, Kelly M. Stewart, Bo‐Hyun Kim, Juan Ausió, David R. Goodlett, Helena Pětrošová, Kyle D. Duncan, Julian J. Lum   +16 more
wiley   +1 more source

Spatial and temporal scales in plant phenotyping for crop water stress assessment: A review

The Plant Phenome Journal, Volume 9, Issue 1, December 2026.
Abstract Water stress is a major limiting factor for crop productivity worldwide, and its impacts are intensifying due to climate variability and increasing water scarcity. This review focuses on the spatial and temporal scales in plant phenotyping as a critical approach to improving crop water‐stress assessment and supporting precision water ...
Daniel Kingsley Cudjoe, Yazhou Sun, Sanai Li, Wenxuan Guo   +3 more
wiley   +1 more source

Sentinel-2 msi ve landsat-9 oli uydu görüntüleriyle yanmiş alanlarin tespiti: 2022 muğla/marmaris orman yangini

, 2023
Orman yangınları canlılara ve bitki örtüsüne zarar vermekte, bunun yanında hava kirliliğine de neden olmaktadır. Bu nedenle orman yangınlarıyla mücadele önemli bir durum olarak karşımıza çıkmaktadır.
Yücer, Emre
core   +1 more source