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Vatandaslar, Can (author), Narin, O.G. (author), Abdikan, Saygin (author)Key message: Despite showing a cost-effective potential for quantifying vertical forest structure, the GEDI and ICESat-2 satellite LiDAR missions fall short of the data accuracy standards required by tree- and stand-level forest inventories. Abstract: Tree and stand heights are key inventory variables in forestry, but measuring them manually...journal article 2022
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Gu, Yi (author), Han, Chao (author), Chen, Yuhan (author), Liu, Shenggang (author), Wang, X. (author)The last decades have witnessed a rapid increase of Earth observation satellites (EOSs), leading to the increasing complexity of EOSs scheduling. On account of the widespread applications of large region observation, this article aims to address the EOSs observation scheduling problem for large region targets. A rapid coverage calculation...journal article 2022
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de Roda Husman, S. (author), Hu, Zhongyang (author), Wouters, B. (author), Munneke, Peter Kuipers (author), Veldhuijsen, Sanne (author), Lhermitte, S.L.M. (author)Surface melt is an important driver of ice shelf disintegration and its consequent mass loss over the Antarctic Ice Sheet. Monitoring surface melt using satellite remote sensing can enhance our understanding of ice shelf stability. However, the sensors do not measure the actual physical process of surface melt, but rather observe the presence...journal article 2022
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Psychas, D.V. (author), Khodabandeh, Amir (author), Teunissen, P.J.G. (author)The corrections needed to realize integer ambiguity resolution-enabled precise point positioning (PPP-RTK) at a single-receiver user are often treated as if they are deterministic quantities. The present contribution aims to study and analyze the effect the neglected uncertainty of these corrections, which are subject to time delay, has on...journal article 2022
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Dix, Barbara (author), Francoeur, Colby (author), Li, Meng (author), Serrano Calvo, R. (author), Levelt, Pieternel Felicitas (author), Veefkind, j. Pepijn (author), McDonald, Brian C. (author), De Gouw, Joost (author)The production of crude oil and natural gas is associated with emissions of air pollutants, such as nitrogen oxides (NOx = NO + NO2) and volatile organic compounds, which are precursors for the formation of ground-level ozone. Knowledge of these emissions is critical to the understanding and mitigation of local air quality. NOx emissions from...journal article 2022
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Vaccaro, Davide (author), Akamatsu, Hiroki (author), Bruijn, Marcel (author), Gottardi, Luciano (author), Den Hartog, Roland (author), Van Der Kuur, Jan (author), Ridder, Marcel (author), De Wit, Martin (author), Gao, J.R. (author)We have measured and characterized the thermal crosstalk in two different arrays of transition-edge sensor (TES) X-ray microcalorimeters with frequency-domain multiplexing (FDM) readout. The TES arrays are fabricated at SRON and are a 8 × 8 and a 32 × 32 'kilo-pixel' uniform array. The amount of crosstalk is evaluated as the ratio between the...journal article 2022
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Rajan, R.T. (author), Ben-Maor, Shoshana (author), Kaderali, Shaziana (author), Turner, Calum (author), Milhim, Mohammed (author), Weppler, Johannes (author), Bunt, Riccardo (author), Jaber, Dina Saad Fayez (author), Nguyen, Anh (author)Earth's magnetosphere is vital for today's technologically dependent society. To date, numerous design studies have been conducted and over a dozen science missions have flown to study the magnetosphere. However, a majority of these solutions relied on large monolithic satellites, which limited the spatial resolution of these investigations,...journal article 2022
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Nguyen-Huy, Thong (author), Kath, Jarrod (author), Nagler, T.W. (author), Khaung, Ye (author), Su Aung, Thee Su (author), Mushtaq, Shahbaz (author), Marcussen, Torben (author), Stone, Roger (author)In recent decades, substantial efforts have been devoted in flood monitoring, prediction, and risk analysis for aiding flood event preparedness plans and mitigation measures. Introducing an initial framework of spatially probabilistic analysis of flood research, this study highlights an integrated statistical copula and satellite data-based...journal article 2022
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Mohamed, Ahmed (author), Al Deep, Mohamed (author), Othman, Abdullah (author), Taha, Ayman I. (author), Alshehri, Fahad (author), Abdelrady, Ahmed (author)Saudi Arabia is seeking fresh groundwater resources to face the increase in anthropogenic activities. The groundwater storage variations and occurrence were investigated and the surface and subsurface structures influencing the groundwater resources in the research area were defined using a combined study of Gravity Recovery and Climate...journal article 2022
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Oberg, N.O. (author), Kamp, I. (author), Cazaux, S.M. (author), Woitke, P. (author), Thi, W. F. (author)Context. The large icy moons of Jupiter formed in a circumplanetary disk (CPD). CPDs are fed by vertically infalling circumstellar gas and dust which may be shock-heated upon accretion. Accreted material is then either incorporated into moons, falls into the planet, or is lost beyond the disk edge on relatively short timescales. If ices are...journal article 2022
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Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)Recent advances in space technology provide an opportunity for small satellites to be launched in cislunar space. However, tracking these small satellites still depends on ground-based operations. Autonomous navigation could be a possible solution considering the challenges presented by costly ground operations and limited onboard power...journal article 2022
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Tran, N.B. (author), Van Der Kwast, Johannes (author), Mul, Marloes (author), Seyoum, S.D. (author), Uijlenhoet, R. (author), Jewitt, G.P.W. (author)Evapotranspiration (ET), a key variable in both water and energy cycles. It is very challenging to measure or estimate in large regions. Among many approaches to estimate ET indirectly (e.g. through hydrological modelling), models that are based on satellite remote sensing data (RS) are increasingly being used. However, the RS-based models...conference paper 2022
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Bruinsma, Sean (author), Siemes, C. (author), Emmert, John T. (author), Mlynczak, Martin G. (author)The quality and distribution in time and space of available atmospheric observations are crucial for the accuracy of semi-empirical thermosphere models. However, datasets can be inconsistent, and their qualities and resolutions are often unequal. The main thermospheric density datasets of this century are briefly described and then compared...journal article 2022
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Babadi, Masoud (author), Iran Pour, Siavash (author), Roscher, Ribana (author), Amiri Simkooei, A. (author), Karimi, Hamed (author)Drought is one of the most complex and threatening disasters, defined as a period of drier-than-normal conditions which results in water-related problems. In addition to climate variation, human activities can cause or intensify drought through groundwater overextraction, unsupervised expansion of agricultural lands, etc. One prime example of...journal article 2022
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Mehta, Piyush M. (author), Paul, Smriti N. (author), Crisp, Nicholas H. (author), Sheridan, Philip L. (author), Siemes, C. (author), March, G. (author), Bruinsma, Sean (author)Satellite drag modeling remains the largest source of uncertainty affecting space operations in low Earth orbit. The uncertainty stems from inaccurate models for mass density and drag coefficient. Drag coefficient modeling also impacts scientific knowledge on the physics and dynamics of the upper atmosphere through the estimation of high...journal article 2022
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Bij de Vaate, I. (author), Slobbe, D.C. (author), Verlaan, M. (author)Previous studies have demonstrated that tides are subject to considerable changes on secular time scales. However, these studies rely on sea level observations from tide gauges that are predominantly located in coastal and shelf regions and therefore, the large-scale patterns remain uncertain. Now, for the first time, satellite radar...journal article 2022
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Cesare, Stefano (author), Dionisio, Sabrina (author), Saponara, Massimiliano (author), Bravo-Berguño, David (author), Massotti, Luca (author), De Teixeira Da Encarnação, J. (author), Christophe, Bruno (author)The Next Generation Gravity Mission (NGGM), currently in a feasibility study phase as a candidate Mission of Opportunity for ESA-NASA cooperation in the frame of the Mass Change and Geo-Sciences International Constellation (MAGIC), is designed to monitor mass transport in the Earth system by its variable gravity signature with increased...journal article 2022
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Meinke, K. (author), Stam, D.M. (author), Visser, P.M. (author)Context. In the near future, dedicated telescopes will observe Earth-like exoplanets in reflected parent starlight, allowing their physical characterization. Because of the huge distances, every exoplanet will remain an unresolved, single pixel, but temporal variations in the pixel’s spectral flux contain information about the planet’s surface...journal article 2022
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Martinsen, Grith (author), Bessiere, Helene (author), Caballero, Yvan (author), Koch, Julian (author), Collados-Lara, Antonio Juan (author), Mansour, Majdi (author), Sallasmaa, Olli (author), Pulido-Velazquez, David (author), Williams, Natalya Hunter (author), Zaadnoordijk, Willem (author), Stisen, Simon (author)Groundwater recharge quantification is essential for sustainable groundwater resources management, but typically limited to local and regional scale estimates. A high-resolution (1 km × 1 km) dataset consisting of long-term average actual evapotranspiration, effective precipitation, a groundwater recharge coefficient, and the resulting...journal article 2022
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Wu, Guohua (author), Luo, Qizhang (author), Du, Xiao (author), Chen, Yingguo (author), Suganthan, Ponnuthurai Nagaratnam (author), Wang, X. (author)Satellite observation scheduling plays a significant role in improving the efficiency of Earth observation systems. To solve the large-scale multisatellite observation scheduling problem, this article proposes an ensemble of metaheuristic and exact algorithms based on a divide-And-conquer framework (EHE-DCF), including a task allocation phase...journal article 2022