Results 91 to 100 of about 1,244,965 (221)

A Transformer-Based Framework for Spatiotemporal Unmixing of Land–Water Mixtures in Multispectral Satellite Data [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Spectral unmixing is essential for analyzing mixed pixels in remote sensing, though it has traditionally focused on hyperspectral data. Multispectral Sentinel-2 imagery, despite its wide availability and relevance for environmental monitoring, has seen ...
A. B. Nguyen, A. Schenk, S. Hinz
doaj   +1 more source

Hidden subsurface suspended sediment export from Greenland's marine‐terminating glaciers

Limnology and Oceanography Letters, Volume 11, Issue 6, November 2026.
Abstract Runoff and calved ice volumes from the Greenland Ice Sheet are well constrained, but quantifying the associated suspended sediment flux remains challenging. Here we present near‐terminus observations from three glacierized fjords in southeast Greenland, combining full‐depth turbidity profiles and current velocity from summer 2024 to evaluate ...
Yaqing Ruan, Eric P. Achterberg, Hilde Oliver, Lukas L. Taenzer, Xin Huang, Camilla S. Andresen, Mark J. Hopwood   +6 more
wiley   +1 more source

Modeling Land-Cover Types Using Multiple Endmember Spectral Mixture Analysis in a Desert City [PDF]

Spectral mixture analysis is probably the most commonly used approach among sub-pixel analysis techniques. This method models pixel spectra as a linear combination of spectral signatures from two or more ground components.
Soe W. Myint, Gregory S. Okin
core  

Evaluating Endmember and Band Selection Techniques for Multiple Endmember Spectral Mixture Analysis using Post-Fire Imaging Spectroscopy [PDF]

, 2018
Fire impacts many vegetated ecosystems across the world. The severity of a fire is major component in determining post-fire effects, including soil erosion, trace gas emissions, and the trajectory of recovery.
Veraverbeke, Sander, Carlos Ramirez, Ángeles Casas, Zachary Tane, Ustin, Susan, Dar Roberts, Tane, Zachary, Susan Ustin, Ramirez, Carlos, Roberts, Dar, Sander Veraverbeke, Casas, Ángeles, Veraverbeke, Sander; id_orcid   +12 more
core   +1 more source

MODIS-Based Fractional Crop Mapping in the U.S. Midwest with Spatially Constrained Phenological Mixture Analysis

Remote Sensing, 2015
Since the 2000s, bioenergy land use has been rapidly expanded in U.S. agricultural lands. Monitoring this change with limited acquisition of remote sensing imagery is difficult because of the similar spectral properties of crops. While phenology-assisted
Cheng Zhong, Cuizhen Wang, Changshan Wu
doaj   +1 more source

Contrasting associations of sea‐ice meltwater and meteoric water with nitrogen uptake patterns in the summer Cosmonaut Sea, Antarctica

Limnology and Oceanography Letters, Volume 11, Issue 6, November 2026.
Abstract Nitrogen uptake by phytoplankton influences Southern Ocean productivity and carbon export, but how source‐resolved meltwater is associated with nitrate and ammonium use remains unclear. Here, 15N tracer incubations and a δ18O‐salinity mixing model were combined to examine nitrogen uptake in the early‐summer Cosmonaut Sea.
Kun Zhang, Qianyao Ma, Jun Zhao, Qiang Hao, Shunan Cao, Zifei Yang, Zhen Tang, Minfang Zheng, Mengya Chen, Jianfeng He, Min Chen   +10 more
wiley   +1 more source

A systematic 15N‐amino‐acid tracer framework to identify sources of pelagic marine organic matter

Limnology and Oceanography: Methods, Volume 24, Issue 11, November 2026.
Abstract Accurately tracing organic matter sources in marine systems remains challenging, particularly where natural and anthropogenic inputs coexist. Compound‐specific stable isotope analysis of amino acids (CSIA‐AA) offers strong potential for organic matter source discrimination, but its application is limited by the small number of validated δ15N ...
E. Cepeda, S. Bodé, P. Boeckx, J. Vanaverbeke, U. Braeckman, I. Lizaga   +5 more
wiley   +1 more source

Spectral unmixing approach in hyperspectral remote sensing: a tool for oil palm mapping

TecnoLógicas, 2019
Oil palm plantations typically span large areas; therefore, remote sensing has become a useful tool for advanced oil palm monitoring. This work reviews and evaluates two approaches to analyze oil palm plantations based on hyperspectral remote sensing ...
Hector Vargas, Ariolfo Camacho Velasco, Henry Arguello   +2 more
doaj   +1 more source

Do Shallow Slip Deficits Reflect Fault Structural Maturity or Modeling Choices? A Comparative Analysis of Tibetan Strike‐Slip Earthquakes

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 11, November 2026.
Abstract InSAR‐constrained finite fault slip models are often used to characterize fault geometries and slip distributions of large continental earthquakes. A common feature of these models is a decrease in slip near the surface, commonly expressed as a percentage shallow slip deficit (SSD).
É. Gaudreau, E. Nissen, J. Liu
wiley   +1 more source

An Improved Spatial and Temporal Reflectance Unmixing Model to Synthesize Time Series of Landsat-Like Images

Remote Sensing, 2018
The trade-off between spatial and temporal resolution limits the acquisition of dense time series of Landsat images, and limits the ability to properly monitor land surface dynamics in time.
Jianhang Ma, Wenjuan Zhang, Andrea Marinoni, Lianru Gao, Bing Zhang   +4 more
doaj   +1 more source