Results 91 to 100 of about 90,878 (176)

State‐Dependence of Polar Amplification in an Idealized GCM

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Polar amplification (PA) is a robust feature of contemporary climate change, but its state‐dependence across different climate conditions is poorly understood despite potential relevance to paleoclimate records and future projections. Here we examine the state‐dependence of PA across a wide range of climate states in an idealized moist general
Andrew I. L. Williams, Timothy M. Merlis
wiley   +1 more source

Moving Target At Constant Velocity Localization Using TOA Measurements From Single Moving Receiver With Unknown Signal Period

IEEE Open Journal of Signal Processing
In this article, we consider using time-of-arrival (TOA) measurements from a single moving receiver to locate a moving target at constant velocity that emits a periodic signal with unknown signal period.
Yanbin Zou, Jingna Fan, Zekai Zhang
doaj   +1 more source

Maximum likelihood localization: When does it fail?

ICT Express, 2016
Maximum likelihood is a criterion often used to derive localization algorithms. In particular, in this paper we focus on a distance-based algorithm for the localization of nodes in static wireless networks. Assuming that Ultra Wide Band (UWB) signals are
Stefania Monica, Gianluigi Ferrari
doaj   +1 more source

Evolution of Near‐Term Atmospheric Methane and Associated Temperature Response Under the Global Methane Pledge: Insights From an Earth System Model

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Methane is a powerful greenhouse gas with a shorter lifetime than carbon dioxide (CO2), making it an important target for near‐term climate action. The Global Methane Pledge (GMP) aims to cut anthropogenic methane emissions by 30% from 2020 levels by 2030. Using an Earth system model with interactive CH4 sources and sinks, we assess the Pledge'
Ulas Im, Drew Shindell, Kostas Tsigaridis, Susanne Bauer, Dirk Olivié, Simon Wilson, Lise Lotte Sørensen, Peter L. Langen, Sabine Eckhardt, Lena Höglund‐Isaksson, Zbigniew Klimont, Florian Lindl, Lori Bruhwiler   +12 more
wiley   +1 more source

A Statistically Modelling Method for Performance Limits in Sensor Localization

, 2011
In this paper, we study performance limits of sensor localization from a novel perspective. Specifically, we consider the Cramer-Rao Lower Bound (CRLB) in single-hop sensor localization using measurements from received signal strength (RSS), time of ...
Akyildiz, Baoqi Huang, Bishop, Brian D.O. Anderson, Cao, Changbin Yu, Chitte, Dissanayake, Dogcancay, Hoeffding, Kaemarungsi, Martinez, Pathirana, Patwari, Rappaport, So, Tao Li, Xu, Zhu   +18 more
core   +1 more source

Understanding the Climate Response to Different Vertical Patterns of Radiative Forcing

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract The dependence of climate response on the vertical structure of radiative forcing is studied using a set of idealized experiments, with horizontally uniform and vertically confined forcings. We find for a given effective forcing magnitude, higher‐altitude forcing causes a smaller global warming, owing to more negative cloud feedback.
An‐Zhuo Dai, Jonathan Gregory, Paulo Ceppi   +2 more
wiley   +1 more source

Southern Ocean Clear‐Sky Brightening From Sea Spray Aerosol Increase Drives Departure From Hemispheric Albedo Symmetry

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Observations reveal significant negative trends in reflected shortwave radiation over the 21st century. The global‐mean darkening is primarily driven by clouds, while the global‐mean atmospheric clear‐sky signal is near zero due to offsetting trends in the two hemispheres.
Clare E. Singer, Robert Pincus
wiley   +1 more source

High-Precision Indoor Localization via Dual-Modal AOA/TOA Fusion with Deep Learning and Particle Filters [PDF]

Radioengineering
As the era of IoT and artificial intelligence advances, the demand for high-precision indoor positioning systems continues to grow. Achieving accurate positioning in indoor environments remains challenging due to the presence of obstacles and signal ...
X. Yao, Z. Xu, F. Qiang
doaj  

Artificial Neural Network for Location Estimation in Wireless Communication Systems

Sensors, 2012
In a wireless communication system, wireless location is the technique used to estimate the location of a mobile station (MS). To enhance the accuracy of MS location prediction, we propose a novel algorithm that utilizes time of arrival (TOA ...
Chien-Sheng Chen
doaj   +1 more source

Environmental Influences on Deep Convective Upscale Growth Rate in Central Argentina From a Convection‐Permitting Simulation

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 1, 16 January 2026.
Abstract This study uses a convection‐permitting model simulation to describe the environmental conditions under which convective upscale growth occurs in central Argentina, particularly examining environmental parameters when deep convection initially forms that could differentiate the rate of initial upscale growth.
Clayton R. S. Sasaki, Angela K. Rowe, Lynn A. McMurdie, Adam C. Varble, Zhixiao Zhang   +4 more
wiley   +1 more source