Results 71 to 80 of about 1,803 (195)

Semi‐Automated Detection of Right Whales (Eubalaena spp.) in Very High‐Resolution Satellite Imagery

Marine Mammal Science, Volume 41, Issue 4, October 2025.
ABSTRACT Space‐based detection of whales is proliferating because it shows promise as a monitoring tool, yet tests of its application across taxa and environments are rare. The objective of this study was to develop an end‐to‐end, semi‐automated procedure for detecting two right whale species ( Eubalaena glacialis and E.
Kimberley T. A. Davies, Anne Webster, Vinoth Babu, Sean W. Brillant, Cody G. Carlyle, Gina L. Lonati, Harsh Sharma, Olivier W. Tsui   +7 more
wiley   +1 more source

Hydrated Silica in Oxia Planum, Mars

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract Hydrated silica (SiO2·nH2O; opal) is important for understanding the geological and aqueous history and habitability of Mars, owing to its genesis in a wide range of aqueous environments and its high biosignature preservation potential relative to other hydrated minerals.
Joseph D. McNeil, Peter Grindrod, Livio L. Tornabene, Peter Fawdon, Vidhya Ganesh Rangarajan   +4 more
wiley   +1 more source

Co‐DeepNet: A Cooperative Convolutional Neural Network for DNA Methylation‐Based Age Prediction

CAAI Transactions on Intelligence Technology, Volume 10, Issue 4, Page 1118-1134, August 2025.
ABSTRACT Prediction of the age of each individual is possible using the changing pattern of DNA methylation with age. In this paper an age prediction approach to work out multivariate regression problems using DNA methylation data is developed. In this research study a convolutional neural network (CNN)‐based model optimised by the genetic algorithm ...
Najmeh Sadat Jaddi, Mohammad Saniee Abadeh, Niousha Bagheri Khoulenjani, Salwani Abdullah, MohammadMahdi Ariannejad, Mohd Zakree Ahmad Nazri, Fatemeh Alvankarian   +6 more
wiley   +1 more source

Remote Sensing Image Pansharpening Using Deep Internal Learning With Residual Double-Attention Network

IEEE Access
In recent years, deep convolutional neural networks (CNNs) have significantly improved pansharpening performance compared to traditional methods. However, existing CNN-based methods for pansharpening still lack spatial detail and suffer from spectral ...
Rika Sustika, Andriyan B. Suksmono, Donny Danudirdjo, Ketut Wikantika   +3 more
doaj   +1 more source

A comparison of established and digital surface model (DSM) ‐based methods to determine population estimates and densities for king penguin colonies, using fixed‐wing drone and satellite imagery

Remote Sensing in Ecology and Conservation, Volume 11, Issue 3, Page 294-311, June 2025.
We used fixed‐wing drones and Beyond Visual Line of Sight flying to create high‐resolution imagery and Digital Surface Models (DSMs) of six large king penguin colonies (colony population sizes ranging from 10,671 to 132,577 pairs) in South Georgia. We used a novel DSM‐based method to facilitate automated and semi‐automated counts of each colony to ...
J. Coleman, N. Fenney, P.N. Trathan, A. Fox, E. Fox, A. Bennison, L. Ireland, M.A. Collins, P.R. Hollyman   +8 more
wiley   +1 more source

Mineralogical characterisation of aeolian sands using multispectral satellite datasets: Implications for dune field evolution, Wahiba Dune Field, Oman

Earth Surface Processes and Landforms, Volume 50, Issue 6, May 2025.
This study develops a remote sensing methodology that integrates high‐resolution satellite imagery with field validation to map the Wahiba Dune Field of Oman. Findings reveal the sensitivity of contemporary geomorphic surfaces to local sediment dynamics and highlight the value of multi‐scale analysis in interpreting dune field evolution.
David Cousins, Gary Kocurek, Mohammed Al Kindi, Omer Al Mashaykhi, Caroline Hern, Calum Macaulay, Robert Campbell, Michelle Thompson   +7 more
wiley   +1 more source

Analisis Pansharpening Citra Spot 5

, 2014
Penggabungan citra (image fusion) dapat dijadikan sebagai alat bantu penting dalam evaluasi data penginderaan jauh dengan ketersediaan data citra yang multisensor, multitemporal, multifrekuensi, dan multiresolusi dari satelit observasi bumi.
Hendayani Yusuf, Sukentyas Estuti Siwi
core  

Estimating beluga whale abundance from space: using drones to ground‐validate VHR satellite imagery

Remote Sensing in Ecology and Conservation, Volume 10, Issue 6, Page 673-685, December 2024.
We investigated two factors required to reliably conduct beluga whale population abundance estimates using VHR satellite imagery: (1) depths at which beluga whales are visible in VHR satellite images, which are used to define availability bias correction factors and (2) a comparison of abundance estimates in VHR satellite imagery to current aerial ...
Jordan B. Stewart, Justine M. Hudson, Bryanna A. H. Sherbo, Cortney A. Watt   +3 more
wiley   +1 more source

The Interannual Variability of Antarctic Fast‐Ice Thickness in McMurdo Sound and Connections to Climate

Journal of Geophysical Research: Oceans, Volume 129, Issue 12, December 2024.
Abstract Land‐fast sea‐ice (fast ice) in McMurdo Sound grows through heat loss to the atmosphere and through heat loss to the ocean due to the presence of supercooled water. In this paper, we present a fast‐ice thickness data set covering 1986–2022, providing a baseline of interannual variability in fast‐ice thickness.
Maren Elisabeth Richter, Greg H. Leonard, Inga J. Smith, Pat J. Langhorne, Matthew Parry   +4 more
wiley   +1 more source

Rapid Ice‐Wedge Collapse and Permafrost Carbon Loss Triggered by Increased Snow Depth and Surface Runoff

Geophysical Research Letters, Volume 51, Issue 11, 16 June 2024.
Abstract Thicker snow cover in permafrost areas causes deeper active layers and thaw subsidence, which alter local hydrology and may amplify the loss of soil carbon. However, the potential for changes in snow cover and surface runoff to mobilize permafrost carbon remains poorly quantified.
Frans‐Jan W. Parmentier, Lennart Nilsen, Hans Tømmervik, Ove H. Meisel, Lisa Bröder, Jorien E. Vonk, Sebastian Westermann, Philipp R. Semenchuk, Elisabeth J. Cooper   +8 more
wiley   +1 more source