Evaluating Radio Occultation (RO) Constellation Designs Using Observing System Simulation Experiments (OSSEs) for Ionospheric Specification by Nicholas Dietrich, Tomoko Matsuo, Chi‐Yen Lin, Brandon diLorenzo, Charles Chien‐Hung Lin, Tzu‐Wei Fang

“…These OSSEs use 10 different sets of RO constellation configurations containing 6 or 12 LEO satellites with base orbit parameter combinations of 520 or 800 km altitude, and 24° or 72° inclination. …”
Get full text

Models for Processing Nighttime Light Data and Software Development by Yufeng Qu, Long Li, Xuqing Li, Runya Li, Man Liu, Yushuai Wei, Yongjian Huang

“…However, the differences in sensor calibration and sensitivity to faint lights between the two satellites prohibit the merging of these two datasets into a longer one, which limits their further application in long-term time series analysis (1992 - present). …”
Get full text

Aridity-induced phenological shifts and greening trends in Mediterranean forest species: Insights from 28 years of Landsat data in southern Spain by Aurelio D. Herraiz, Pablo Salazar-Zarzosa, Cristina Acosta-Muñoz, Rocío Hernández-Clemente, Rafael Villar

“…To achieve this, we processed the maximum monthly Normalized Difference Vegetation Index (NDVI) data from 1994 to 2021, obtained from Landsat 05 and 07 satellites for 2,358 plots of the Spanish National Forest Inventory in Andalucia (Southern Spain). …”
Get full text

Dark Galactic Subhalos and the Gaia Snail by Daniel Gilman, Jo Bovy, Neige Frankel, Andrew Benson

“…Our results motivate investigation of the Milky Way's dark satellites by characterizing their kinematic signatures in phase-space spirals across the Galaxy.…”
Get full text

Climate Change-Induced Decline in Succulent <i>Euphorbia</i> in Namibia’s Arid Regions by J. J. Marion Meyer, Marie M. Potgieter, Nicole L. Meyer, Anika C. Meyer

“…This study focused on large succulent euphorbias, distinguishable in satellite images and historical photographs. It was observed that many other plant species are also severely stressed in arid sandy areas. …”
Get full text

High-resolution mapping of peatland CO2 fluxes using drone multispectral images by R. Walcker, C. Le Lay, L. Gandois, A. Elger, V.E.J. Jassey

“…Typically, it is based on multispectral satellite images with low (∼250 m) to moderate ground pixel resolution (∼20 m). …”
Get full text

ANFIS-PSO analysis on axisymmetric tetra hybrid nanofluid flow of Cu-CNT-Graphene-Tio2 with WEG-Blood under linear thermal radiation and inclined magnetic field: A bio-medicine app... by Maddina Dinesh kumar, José Luis Díaz Palencia, G. Dharmaiah, A. Wakif, S. Noeiaghdam, U. Fernandez-Gamiz, S. Dinarvand

“…The hybrid fluid of Cu-CNT + Graphene + TiO2/WEG-Blood, which is subject to heat transfer in a channel between two parallel plates with an angled magnetic field and linear thermal radiation, has numerous applications in engineering, industry, and biomedical research, such as electronic cooling, drug delivery, cancer treatment, optics, missiles, satellites, transformer-electronic cooling, and military solar-equipment. …”
Get full text

Foundations of radar synthesis theory of phantom objects formation in SAR images by Volodymyr Pavlikov, Simeon Zhyla, Pavlo Pozdniakov, Denys Kolesnikov, Hlib Cherepnin, Olexandr Shmatko, Oleksii Odokiienko, Pavlo Malashta, Eduard Tserne

“…The research is aimed at solving the following tasks: to describe the general concept of phantomization radar (PhR) design and application; to formulate the hypotheses underlying the theory and outline the range of issues to be solved; to determine the general structure of PhR; to develop mathematical models of the laws of distance change in the system “phantom image generator – remote sensing radio system”; to determine the size limitations of the area where phantom replacement of real radio images can be provided following the viewing mode of the underlying surface from satellites. The solution to these tasks is based on the methods of the remote sensing system synthesis theory, radiophysics, coherent image formation, functional analysis, synthesis, and processing of spatiotemporal signals. …”
Get full text

BSG-WSL: BackScatter-guided weakly supervised learning for water mapping in SAR images by Kai Wang, Zhongle Ren, Biao Hou, Weibin Li, Licheng Jiao

“…Experiments on three datasets of SAR images from the GF-3 and Sentinel-1B satellites verify that the proposed method achieves state-of-the-art performance compared to other weakly supervised methods based on image-level annotations.…”
Get full text

New Lightning‐Derived Vertical Total Electron Content Data Provide Unique Global Ionospheric Measurements by Erin H. Lay, Jeffery D. Tippmann, Kyle C. Wiens, Sarah E. McDonald, Anthony J. Mannucci, Xiaoqing Pi, Anthea Coster, R. Marc Kippen, Michael J. Peterson, Rob Redmon

“…Department of Defense sensing systems on board Global Positioning System (GPS) satellites. This paper presents the new data set (LANL VTEC), discusses the errors inherent in VHF TEC estimation due to ionospheric dispersion, and compares the LANL VTEC to two community standard VTEC gridded products: Jet Propulsion Laboratory's Global Ionospheric Model (JPL GIM) and the CEDAR community's Open Madrigal VTEC gridded measurements of L‐band GNSS (global navigation satellite systems) TEC. …”
Get full text

Evaluation and Adjustment of Precipitable Water Vapor Products from FY-4A Using Radiosonde and GNSS Data from China by Xiangping Chen, Yifei Yang, Wen Liu, Changzeng Tang, Congcong Ling, Liangke Huang, Shaofeng Xie, Lilong Liu

“…The geostationary meteorological satellite Fengyun-4A (FY-4A) has rapidly advanced, generating abundant high spatiotemporal resolution atmospheric precipitable water vapor (PWV) products. …”
Get full text

On the Considerations of Using Near Real Time Data for Space Weather Hazard Forecasting by A. W. Smith, C. Forsyth, I. J. Rae, T. M. Garton, C. M. Jackman, M. Bakrania, R. M. Shore, G. S. Richardson, C. D. Beggan, M. J. Heyns, J. P. Eastwood, A. W. P. Thomson, J. M. Johnson

“…Abstract Space weather represents a severe threat to ground‐based infrastructure, satellites and communications. Accurately forecasting when such threats are likely (e.g., when we may see large induced currents) will help to mitigate the societal and financial costs. …”
Get full text

Multi‐Year Statistics of LEO Energetic Electrons as Observed by the Korean NextSat‐1 by Jaeheung Park, Kyoung Wook Min, Hoonkyu Seo, Eo‐Jin Kim, Kwangsun Ryu, Jongdae Sohn, Jongho Seon, Ji‐Hyeon Yoo, Seunguk Lee, Brian Kress, Junchan Lee, Changho Woo, Dae‐Young Lee

“…Abstract Monitoring the Earth's radiation belt by Low‐Earth‐Orbit (LEO) satellites has a long history and complemented observations near the high‐altitude equatorial plane. …”
Get full text

The analysis of the state of development of devices for cleaning orbits in near-Earth space from large-sized space debris objects by V. I. Trushlyakov, V. V. Yudintsev, V. A. Urbansky, S. Yu. Onishchuk

“…Presented current information on the launch of nano-satellites, which is an additional factor in the pollution of low earth orbit. …”
Get full text

PreciPalm: An Intelligent System for Calculating Macronutrient Status and Fertilizer Recommendations for Oil Palm on Mineral Soils Based on a Precision Agriculture Approach by Kudang Boro Seminar, Harry Imantho, null Sudradjat, Sudirman Yahya, Sirojul Munir, Indra Kaliana, Fajar Mei Haryadi, Awalia Noor Baroroh, null Supriyanto, Gani Cahyo Handoyo, Arif Kurnia Wijayanto, Cecep Ijang Wahyudin, null Liyantono, Rhavif Budiman, Achmad Bakir Pasaman, Dwi Rusiawan, null Sulastri

“…The use of the two satellites is to cope with cloud and smoke interference. …”
Get full text

Comparing space-based to reported carbon monoxide emission estimates for Europe's iron and steel plants by G. Leguijt, G. Leguijt, J. D. Maasakkers, H. A. C. Denier van der Gon, A. J. Segers, T. Borsdorff, I. R. van der Velde, I. R. van der Velde, I. Aben, I. Aben

“…This demonstrates how satellites can be used to identify potential uncertainties in reported emissions.…”
Get full text

On the Magnetosphere‐Ionosphere Coupling During the May 2021 Geomagnetic Storm by M. Piersanti, D. Del Moro, A. Parmentier, M. Martucci, F. Palma, A. Sotgiu, C. Plainaki, G. D’Angelo, F. Berrilli, D. Recchiuti, E. Papini, L. Giovannelli, G. Napoletano, R. Iuppa, P. Diego, A. Cicone, M. Mergé, C. De Donato, C. De Santis, R. Sparvoli, P. Ubertini, R. Battiston, P. Picozza

“…We investigate the propagation of the interplanetary coronal mass ejection and its interaction with the magnetosphere—ionosphere system in terms of both magnetospheric current systems and particle redistribution, by jointly analyzing data from interplanetary, magnetospheric, and low Earth orbiting satellites. The principal magnetospheric current system activated during the different phases of the geomagnetic storm was correctly identified through the direct comparison between geosynchronous orbit observations and model predictions. …”
Get full text

Research on F10.7 Index Prediction Based on Factor Decomposition and Feature Enhancement by Shuainan Yan, Yanmei Cui, Bingxian Luo, Liqin Shi, Yanxia Cai

“…The F10.7 index is crucial for assessing solar activity, significantly impacting communication, navigation, and satellite operations. The intrinsic complexity and variability of solar activity often result in sudden perturbations in the F10.7 index, compromising the accuracy and stability of forecasts. …”
Get full text

Assessing Thermospheric Neutral Density Models Using GEODYN's Precision Orbit Determination by Z. C. Waldron, K. Garcia‐Sage, J. P. Thayer, E. K. Sutton, V. Ray, D. D. Rowlands, F. G. Lemoine, S. B. Luthcke, M. Kuznetsova, R. Ringuette, L. Rastaetter, G. D. Berland

“…Abstract This study focuses on utilizing the increasing availability of satellite trajectory data from global navigation satellite system‐enabled low‐Earth orbiting satellites and their precision orbit determination (POD) solutions to expand and refine thermospheric model validation capabilities. …”
Get full text

Galileo multi-day precise orbit determination using L-band and SLR data by Tianhe Xu, Honglei Yang, Song Li, Zhenlong Fang, Wenfeng Nie, Min Li, Baoguo Yu

“…The continuously available satellites of European Galileo currently reach more than 25. …”
Get full text