Results 71 to 80 of about 10,703 (257)

Geometric Characterization of LEO–GEO Inter‐Satellite Links for Bidirectional Communications

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Incorporating geosynchronous Earth orbit (GEO) and low Earth orbit (LEO) satellites can extend communication services far beyond the reach of terrestrial infrastructure. A key enabler of such architectures is the establishment of inter‐satellite links (ISLs) between LEOs and GEOs to support bidirectional communications.
Muhammad Furqan, Lingfeng Ye, Yanming Feng   +2 more
wiley   +1 more source

Do the public take action when a severe snow warning is issued?

Weather, EarlyView.
Extreme weather events pose significant risks to the population, making timely warnings essential for preparedness. The UK Met Office’s National Severe Weather Warning Service (NSWWS) has issued impact‐based alerts for over a decade, yet evaluations of their effectiveness remain limited.
Helen Dacre, Rachel McCloy, Joi Alon
wiley   +1 more source

Different Frontier, Same Legal Script? On the Course of Replicating Earth's Patterns in Space

The Modern Law Review, EarlyView.
As states and private actors expand their activities in outer space, the international legal framework governing this domain risks extending longstanding structures of global inequality beyond Earth. This article examines how international space law, shaped by a broader disciplinary pattern of reactive legal development, is poised to reproduce ...
Sivan Shlomo‐Agon, Michal Saliternik
wiley   +1 more source

Performance Evaluation of Satellite Observation of Sand/Dust Weather and Its Application in Assessing the Accuracy of Numerical Models

Applied Sciences
Air quality monitoring and forecasting has been a challenging problem for years. In addition to traditional ground-based observational stations, in recent years there have been more geostationary and polar orbiting satellite observations on air quality ...
Pak Wai Chan, Ying Wa Chan, Chun Kit Ho, Yuzhao Ma, Wai Ho Tang, Ho Yi Wong, Xiaoxue Zhang   +6 more
doaj   +1 more source

Sun Transit Outage Considering Solar Activity and It's Application to Koreasat [PDF]

Journal of Astronomy and Space Sciences, 1999
The purpose of this paper is to predict Sun Transit Outage phenomenon(Sunout). Sunout had been studied mainly for the case of Geostationary satellite and under the assumption of 'Quiet Sun'.
Kyoung-Min Roh, Kyu-Hong Choi, Suk-Hee Bae   +2 more
doaj  

New Challenges for European Space Industrial Policy

Global Policy, EarlyView.
ABSTRACT The European space industry is globally competitive but faces challenges due to fragmented governance, reliance on commercial markets, and increased international competition. The European Union (EU) has become a major stakeholder in this sector, with a ‘fragmented institutional market’ shaped by policies, initiatives and programmes at ...
Sara Dalledonne, Justine Dousset, Marco Aliberti   +2 more
wiley   +1 more source

THE CALIBRATION OF GEOSTATIONARY SATELLITES

, 2016
Presentation given at the 17th GHRSST science meeting (XVII), Washington DC, USA, June 6 - 10, 2016.
openaire   +2 more sources

Methods for substituting onsite ambient ultraviolet radiation measurements for personal exposure studies

Photochemistry and Photobiology, EarlyView.
Three methods for substituting on‐site ambient ultraviolet radiation measurements for personal exposure measurements were investigated. Assuming spatial persistency of measurements from high‐grade instruments delivers lowest uncertainties up to distances of 82 km.
F. Lubitz, S. Helletzgruber, H. Danhel, D. Radmanovac, A. Dzwonek, E. Kitz, P. Weihs, A. W. Schmalwieser   +7 more
wiley   +1 more source

Deep-Learning-Based Multi-Channel Satellite Precipitation Forecasting Enhanced by Cloud Phase Classification

Remote Sensing
Clouds are closely related to precipitation, as their type, microphysical characteristics, and dynamic properties determine the intensity, duration, and form of rainfall. While geostationary satellites offer continuous cloud-top observations, they cannot
Yuhang Jiang, Wei Cheng, Shudong Wang, Shuangshuang Bian, Jingzhe Sun, Yayun Li, Juanjuan Liu   +6 more
doaj   +1 more source

Evaporation and Cold Pools Beneath Trade Cumulus Clouds

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.
Abstract The sources of air and water vapor in the tropical trade‐wind Atlantic subcloud boundary layer (SBL) are analyzed using in situ measurements of temperature, specific humidity, and stable water isotopologues (HDO and H218O) from shipboard observations in January‐February 2020.
Estefanía Quiñones Meléndez, Simon P. de Szoeke, Peter N. Blossey, David Noone, Mampi Sarkar, Adriana Bailey, Alton P. Daley   +6 more
wiley   +1 more source