Results 91 to 100 of about 13,003 (225)

Initial Assessment of the Detectability of Cyanotoxin Occurrence Using PACE Satellite Observations

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Microcystin is a major public health hazard during freshwater cyanobacterial blooms, yet its remote detection remains challenging because it lacks any direct optical absorption features. We demonstrate that hyperspectral observations from NASA's PACE Ocean Color Instrument (OCI) can be used to detect elevated microcystin concentrations by ...
Denesh Karunakaran, Ardeshir Ebtehaj, Lucas Clark Burnette, Miki Hondzo, Leif Olmanson   +4 more
wiley   +1 more source

Global Fair‐Weather Bias in Remotely Sensed Coastal Suspended Sediment Concentration

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Satellite estimates of suspended‐sediment concentration (SSC) are widely used to understand ecosystem functions and resilience of coastal environments. Yet, they rely largely on fair‐weather observations. Combining continuous in situ time series with multi‐decadal satellite records and reanalysis products, we quantify a systematic fair‐weather
Hangjie Lin, Cédric G. Fichot, Yunwei Wang, Qian Yu, Aijun Wang, Shu Gao   +5 more
wiley   +1 more source

PRISMA vs. Landsat 9 in lithological mapping − a K-fold Cross-Validation implementation with Random Forest

Egyptian Journal of Remote Sensing and Space Sciences
The selection of an optimal dataset is crucial for successful remote sensing analysis. The PRISMA hyperspectral sensor (with 240 spectral bands) and Landsat OLI-2 (boasting high dynamic resolution) offer robust data for various remote sensing ...
Ali Shebl, Dávid Abriha, Maher Dawoud, Mosaad Ali Hussein Ali, Árpád Csámer   +4 more
doaj   +1 more source

Assessing forest fragmentation and biodiversity impacts in sub‐Saharan Africa: Methodological challenges and conservation strategies for small‐scale agricultural landscapes

Agrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Tropical forests in sub‐Saharan Africa (SSA) harbor around one‐third of the world's species but are becoming more fragmented due to the expansion of human settlements and small‐scale agricultural (SCA) areas. This study systematically reviewed the approaches and methods used to analyze forest fragmentation and its impact on biodiversity in SSA,
Gillie Cheelo, Hastings Shamaoma, Charles Bwalya Chisanga, Jules Christian Zekeng, Stephen Syampungani   +4 more
wiley   +1 more source

Landsat 9 Thermal Infrared Sensor 2 On-Orbit Calibration and Initial Performance

IEEE Transactions on Geoscience and Remote Sensing, 2022
Aaron Pearlman, Boryana Efremova, Matthew Montanaro, Allen Lunsford, Dennis Reuter, Joel McCorkel   +5 more
openaire   +1 more source

Landsat 9 Transfer to Orbit of Pre-Launch Absolute Calibration of Operational Land Imager (OLI)

Remote Sensing
Landsat 9 Operational Land Imager (L9-OLI) was launched on 27 September 2021, after completing a successful radiometric pre-launch calibration and characterization phase. The radiometric math model that governs the ground system—the data processing and analysis system (DPAS)—uses various calibration parameters that had been derived based on the pre ...
Raviv Levy, Jeffrey A. Miller, Julia A. Barsi, Kurtis J. Thome, Brian L. Markham   +4 more
openaire   +2 more sources

Stacking ensemble machine learning for predicting land surface temperature hotspots using landsat 9 data

Proceedings of the Nigerian Society of Physical Sciences
Despite advancements in predictive modeling, existing methods struggle with accuracy and spatial variability in Land Surface Temperature (LST) estimation.
Momohjimoh Abdulsalami, Dahiru Dahuwa, Saratu Muhammad Hussaini, Yahaya Jibrin Danjuma, Michael Adewale Ibitomi, Danga Onimisi Abdulmalik, Bunmi Oyekola Isaac, Zainab Usman, Joseph Omeiza Alao, Aliyu Abdullateef   +9 more
doaj   +1 more source

Retrieval of rice biophysical parameters from Sentinel‑2 using parsimonious multi‑output machine learning

Agrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Rice (Oryza sativa L.) crop monitoring in Africa requires efficient retrieval of biophysical parameters such as leaf area index (LAI) and leaf chlorophyll content (LCC), which are essential for crop stress detection and nutrient management.
Joseph Kagotho Muriithi, Collins Mito, Giovanni Laneve, John Buers, Elijah Cheruiyot, Jephter Ondieki   +5 more
wiley   +1 more source

Urban greenspace and dementia: Measures, mechanisms, and methodological guidance

Alzheimer's &Dementia, Volume 22, Issue 6, June 2026.
Abstract Urban greenspace has been associated with improved cognition and reduced Alzheimer's disease (AD) and AD‐related dementias (ADRD) risk, but findings remain mixed, study quality varies, and evidence is largely cross‐sectional. To advance the field, we offer guidance to select and apply greenspace exposure measures in AD/ADRD research.
Ingrid Jarvis, Lilah Besser, Jessica Finlay, Perry Hystad, Kevin J. Lane, Ruth F. Hunter, Peter James, Marcia Pescador Jiménez, Mark Nieuwenhuijsen, Matilda van den Bosch, David Van Riper, Jinkook Lee, Dany Doiron, Jeffrey Brook, Sara D. Adar, Michael Brauer   +15 more
wiley   +1 more source

The spread of non‐native species

Biological Reviews, Volume 101, Issue 3, Page 1197-1234, June 2026.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source