Results 71 to 80 of about 166,346,941 (209)

Spaceborne Far‐Infrared Signal Simulations Over the Antarctic Plateau With Temperature‐Dependent Ice Cloud Optical Properties

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Longwave cloud radiative effects significantly influence variability in global and regional Earth systems. However, there have been very few, if any, measurements of the far‐infrared (FIR) radiation over the polar regions, where about half of the outgoing longwave radiation is in the FIR spectrum. This motivated the Polar Radiant Energy in the
Tong Ren, Ping Yang, Xianglei Huang
wiley   +1 more source

The Value of Observing the Buyer Arrival Time in Dynamic Pricing [PDF]

, 2020
We consider a dynamic pricing problem where a firm sells one item to a single buyer in order to maximize expected revenues. The firm commits to a price function over an infinite horizon.
Correa, José, Pizarro, Dana, Vulcano, Gustavo   +2 more
core   +1 more source

PENENTUAN POSISI USER PADA SISTEM KOMUNIKASI SELULER DENGAN METODA TIME OF ARRIVAL (TOA) DAN TIME DIFFERENCE OF ARRIVAL (TDOA) [PDF]

, 2015
Penentuan posisi user pada sistem komunikasi seluler saat ini menjadi hal yang sangat penting karena banyak sekali keuntungannya terutama untuk memantau posisi kejadian-kejadian luar biasa seperti pelaku kejahatan, tempat kebakaran, bencana kerusuhan dan
Renyati, Renyati, Budianto, Budianto, Tatang, Ujang Agus, Arseno, Dharu, Prasetya, Budi   +4 more
core   +2 more sources

Evaluating the Role of Kernel Choice on Radiative Feedback Estimates

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Radiative feedbacks are important for understanding climate sensitivity, yet estimates vary widely across climate models. Feedbacks are often computed using the radiative kernel technique, which uses pre‐calculated radiative sensitivities (kernels) derived from different models and base states. While much attention has been given to intermodel
Kaitlyn Wen, Ivan Mitevski, Tyler P. Janoski, Gabriel A. Vecchi   +3 more
wiley   +1 more source

Time of arrival estimation in pulsar-based navigation systems [PDF]

, 2015
This paper focuses on the Time of Arrival (TOA) estimation problem related to new application of pulsar signals for airplane-based navigation. The aim of the paper is to propose and evaluate a possible algorithm for TOA estimation that consists of epoch ...
I. Garvanov, Garvanov, I., Chr. Kabakchiev, P. Buist, M. Bentum, Kabakchiev, Chr., Behar, V., Buist, P., D. Kabakchieva, Kabakchieva, D., V. Behar, Bentum, Marinus Jan   +11 more
core   +1 more source

A population Monte Carlo model for underwater acoustic telemetry positioning in reflective environments

Methods in Ecology and Evolution
Underwater acoustic telemetry positioning is widely used to track the fine‐scale movements of aquatic animals. In study areas near acoustically reflective surfaces, reflected transmissions may cause large detection outliers that can severely reduce the ...
James Adam Campbell, Samuel Joseph Shry, Petter Lundberg, Olle Calles, Franz Hölker   +4 more
doaj   +1 more source

Time-of-Arrival (TOA) Localization for Indoor GIS

Geographic Information Science & Technology Body of Knowledge, 2021
Tianxing Chu, Zhao Sihao
openaire   +1 more source

Refining the Simulation of Mixed‐Phase Clouds Over Coastal Antarctica With a Tailored Ice Nucleating Particle Parameterization

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Climate models have substantial biases in downwelling shortwave radiation over the Southern Ocean (SO) and Antarctica, primarily due to their inability to accurately represent the frequent occurrence of low‐level mixed‐phase clouds. Building on the evaluation of the Unified Model (UM) Regional Atmosphere and Land version 3 (RAL3), this study ...
Zhangcheng Pei, Sonya L. Fiddes, Marc D. Mallet, Simon P. Alexander, Kalli Furtado, Calum Knight, Greg Roff, Daniel Smith, Alain Protat, Adrian McDonald, W. John R. French   +10 more
wiley   +1 more source

Morphology‐Driven Ternary Pattern Space Spans Shallow Marine Clouds

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Marine shallow clouds exhibit a variety of patterns, which have been the subject of extensive research. In this study, we introduce a new approach for their continuous classification using Moderate Resolution Imaging Spectroradiometer (MODIS) true color imagery.
Hadar Roth, Tom Dror, Orit Altaratz, Ilan Koren   +3 more
wiley   +1 more source

Position determination of acoustic source using a discrete probability density method supported by joint detection and time of arrival estimation [PDF]

Scientific Technical Review, 2017
The localization of various acoustic sources in a battlefield (such as weapon rounds, mortars, rockets, mines, improvised explosive devices, vehicle-borne improvised explosive devices and airborne vehicles) nowadays has significant history.
Pokrajac Ivan, Vračar Miodrag, Kozić Nadica, Brusin Radiana, Stanojević Milan   +4 more
doaj