Development conception of space-ground inteyrated information network LEO mobile and broadband internet constellation by Chenhua SUN, Yongwei XIAO, Weisong ZHAO, Po ZHOU

“…With the extension of global internet and IoT (internet of things),LEO (low earth orbit) communication constellation which can achieve seamless coverage of the world including the two poles once again meets the opportunity for development.An innovative scheme of LEO mobile and broadband internet constellation was proposed after analyzing the characteristics of typical foreign constellations and combining with Science and Technology Innovation 2030 Major Project:Space Integrated Ground Network.Development suggestions that can lay the foundation for relevant research and system construction were presented.…”
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Thank You to Our 2019 Reviewers by Noé Lugaz, Delores J. Knipp, Jennifer L. Gannon, Michael Hapgood, Huixin Liu, T. Paul O'Brien, Daniel T. Welling

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Seasonal Tree Height Dynamic Estimation Using Multi-source Remotely Sensed Data in Shenzhen by Hang Song, Xuemei Zhang, Ting Hu, Jinglei Liu, Bing Xu

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Assessing Climate Change Effects on Mahseer Growth Properties by Iskandar Nur Syuhada, Md Noor Noorashikin, Che Cob Zaidi, Das Simon Kumar

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Vegetation greening and climate change respectively regulates the long-term trend and interannual variability in evapotranspiration over the Loess Plateau since the 21st century by Qiaoyin Tan, Ting Hua, Ting Hua, Haichen Zhao, Peiye Zhou, Peiye Zhou

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CMIP6-based global estimates of future aridity index and potential evapotranspiration for 2021-2060 [version 2; peer review: 1 approved, 2 approved with reservations] by Jianchu Xu, Robert J. Zomer, Antonio Trabucco, Donatella Spano

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Overview of OTFS Based Channel Estimation Techniques in LEO Satellite Communication by Xinjie ZHAO, Ziwei LIU, Gengxin ZHANG

“…With the development of science and technology and the continuous improvement of related technologies, low earth orbit (LEO) satellite communication has become a hot technology that countries all over the world are chasing.The advantages of orthogonal time frequency spacetechnology can well solve the signal transmission problem of broadband satellite ground link in high moving speed scenarios, which is conducive to the unifi cation of modulation waveforms between satellites and the ground, and the realization of space-based integrated communication.However, its transmission performance is aff ected by the accuracy of channel estimation, and the special modulation makes its channel estimation method diff erent from the traditional technology, so it needs to be studied.The existing mainstream OTFS channel estimation schemes are introduced, and the advantages and disadvantages of each scheme were analyzed, which laied a foundation for subsequent research.…”
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A Collaborative and Scalable Geospatial Data Set for Arctic Retrogressive Thaw Slumps with Data Standards by Yili Yang, Heidi Rodenhizer, Brendan M. Rogers, Jacqueline Dean, Ridhima Singh, Tiffany Windholz, Amanda Poston, Stefano Potter, Scott Zolkos, Greg Fiske, Jennifer Watts, Lingcao Huang, Chandi Witharana, Ingmar Nitze, Nina Nesterova, Sophia Barth, Guido Grosse, Trevor Lantz, Alexandra Runge, Luigi Lombardo, Ionut Cristi Nicu, Lena Rubensdotter, Eirini Makopoulou, Susan Natali

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AIR-POLSAR-CR1.0: A Benchmark Dataset for Cloud Removal in High-Resolution Optical Remote Sensing Images with Fully Polarized SAR by Yuxi Wang, Wenjuan Zhang, Jie Pan, Wen Jiang, Fangyan Yuan, Bo Zhang, Xijuan Yue, Bing Zhang

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Development of an agenda for research and action on climate change and health in the Caribbean by Saria Hassan, Calae Philippe, Renée M. West, Shelly McFarlane, Karen Polson-Edwards, Georgiana Gordon-Strachan, C. James Hospedales, Robert Dubrow, Caroline F. Allen

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An Introduction and Critical Assessment of Smart City Developments by László Gere

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Biodiversity restated: > 99.9% of global species in Soil Biota by Robert J. Blakemore

“…Species affected include Keystone taxa, especially earthworms and microbes, essential for a healthy Soil foundation to sustain the Tree-of-Life inhabiting the Earth.…”
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DeepBase: A Deep Learning-based Daily Baseflow Dataset across the United States by Parnian Ghaneei, Hamid Moradkhani

“…This dataset provides valuable information for earth and environmental scientists, and water resource managers, enhancing our understanding of the water cycle. …”
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Le camp légionnaire romain de Mayence/Mogontiacum (Allemagne) : nouveaux résultats sur l’enceinte et la chronologie by Daniel Burger-Völlmecke

“…Site evaluation resulted in the division of the earth-and-timber fortress and the stone fortress into three distinct structural phases for each. …”
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Environmental and health risk assessment of polycyclic aromatic hydrocarbons and toxic elements in the red sea using Monte Carlo simulation by F. Alshaima Sayed, Mohamed Hamdy Eid, Ahmed M. El-Sherbeeny, Gouda Ismail Abdel-Gawad, Essam A. Mohamed, Mostafa R. Abukhadra

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Assessment of the Mechanical Properties of Sisal Fiber-Reinforced Silty Clay Using Triaxial Shear Tests by Yankai Wu, Yanbin Li, Bin Niu

“…The fiber-reinforced silty clay exhibited crack fracture and surface shear fracture failure modes, implying that sisal fiber is a good earth reinforcement material with potential applications in civil engineering, dam foundation, roadbed engineering, and ground treatment.…”
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Lightweight Design Strategy and Performance Optimization of Spaceborne Core Network by Xi CHEN, Yiqun Zhao, Minghan ZHANG, Shan LU, Shihao WANG, Chengchen ZHANG, Xiaofan XU, Ping DU

“…With the growth of global communication demand, the spaceborne core network can not only reduce frequent signaling interactions between satellites and the ground, but also break through the constraints of geographical regions, providing strong support for the integrated network architecture of heaven and earth and global communication operations.However, due to the resource limitations of satellites and the dynamic and time-varying topology of satellite internet on a large scale, the deployment of traditional core network elements in spaceborne environments has encountered significant challenges.This article is dedicated to studying the challenges of lightweight, flexible deployment, and low latency in onboard core networks, aiming to explore new design strategies for onboard lightweight core networks and provide a solid theoretical foundation for global communication operations.Multiple lightweight strategies, including minimum network element set deployment, single network element function tailoring, interface protocol lightweight, network element fusion and reconstruction, platform architecture lightweight, and transmission protocol reconstruction were firstly studied.Then, detailed simulation experiments were conducted on the selected strategies, and the experimental results confirmed that the lightweight processing of the spaceborne core network has superior performance in resource allocation and signaling process.…”
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slendr: a framework for spatio-temporal population genomic simulations on geographic landscapes by Petr, Martin, Haller, Benjamin C., Ralph, Peter L., Racimo, Fernando

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Long-term variability and trends in the Agulhas Leakage and its impacts on the global overturning by H. Großelindemann, H. Großelindemann, F. S. Castruccio, G. Danabasoglu, A. Biastoch, A. Biastoch

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Photospheric Swirls in a Quiet-Sun Region by Quan Xie, Jiajia Liu, Chris J. Nelson, Robert Erdélyi, Yuming Wang

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