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Richard Ménard and Martin Deshaies-Jacques
We examine how passive and active observations are useful to evaluate an air quality analysis. By leaving out observations from the analysis, we form passive observations, and the observations used in the analysis are called active observations. We evalu...
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Nadja Gomes Machado,Thiago Meirelles Ventura,Victor Hugo de Morais Danelichen,Carlos Alexandre Santos Querino,Marcelo Sacardi Biudes
Rainfall is the key element in regional water balance, and has direct influence over economic activity. Quantifying rainfall at spatial and temporal scales in regions where meteorological stations are scarce is important for agriculture, natural resource...
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Ru Wang, Qingyu Zheng, Wei Li, Guijun Han, Xuan Wang and Song Hu
The uncertainty in the initial condition seriously affects the forecasting skill of numerical models. Targeted observations play an important role in reducing uncertainty in numerical prediction. The conditional nonlinear optimal perturbation (CNOP) meth...
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Yuxin Zhao, Changzhe Wu, Peng Wu, Kexin Zhu and Xiong Deng
Microwave radiometers are passive remote sensing devices that are widely used in marine atmospheric observations. The accuracy of its inversion of temperature and humidity profiles is an important indicator of its performance. Back Propagation (BP) neura...
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Victor Shutyaev, Vladimir Zalesny, Valeriy Agoshkov, Eugene Parmuzin and Natalia Zakharova
The use of Four-Dimensional variational (4D-Var) data assimilation technology in the context of sea dynamics problems, with a sensitivity analysis of model results to observation errors, is presented. The technology is applied to a numerical model of oce...
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Franklin Paredes-Trejo, Barlin O. Olivares, Yair Movil-Fuentes, Juan Arevalo-Groening and Alfredo Gil
Droughts impact the water cycle, ecological balance, and socio-economic development in various regions around the world. The Orinoco River Basin is a region highly susceptible to droughts. The basin supports diverse ecosystems and supplies valuable resou...
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Wei Cui, Wenxue Chen, Xiangpeng Mu, Qilin Xiong, Junqiang Li, Xiaochen Li, Zhe Liu and Zheqi Zhang
The roughness of the aqueduct in the Middle Route of the South-to-North Water Diversion Project has increased due to factors such as the natural aging of concrete and biological attachment. To increase the flow capacity of the project, a roughness reduct...
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Qixiang Wang, Yibo Zhang, Yonggang Wang, Minjie Xu and Xianqing Lv
High-precision tidal harmonic constants are necessary for studies involving tides. This study proposes a new method combined with the adjoint assimilation model and the Chebyshev polynomial fitting (CPF) method to obtain the tidal harmonic constants in t...
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Yaniv Shmuel, Yaron Ziv and Baruch Rinkevich
The three-dimensional structural complexities generated by living sessile organisms, such as trees and branching corals, embrace distinct communities of dwelling organisms, many of which are adapted to specific niches within the structure. Thus, characte...
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Zaiyang Zhou, Jianzhong Ge, Dirk Sebastiaan van Maren, Jinghua Gu, Pingxing Ding and Zhengbing Wang
The Krone?Partheniades (K-P) framework has been used for decades to quantify and analyze the sediment exchange at a water?bed interface. Measuring the erosion and deposition parameters that are part of this framework requires time-consuming field observa...
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Méabh Nic Guidhir, Donal Kennedy, Alan Berry, Barry Christy, Colm Clancy, Columba Creamer, Guy Westbrook and Sarah Gallagher
The Marine Institute of Ireland operates a network of weather buoys around Ireland. A wave of 32.3 m height (crest?trough) was recorded by one of these buoys, the M6 buoy, off the coast of Ireland in October 2020. In this paper, the technological evoluti...
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Ad J.H.M. Reniers, Remy Naporowski, Marion F. S. Tissier, Matthieu A. de Schipper, Gal Akrish and Dirk P. Rijnsdorp
Coastal safety assessments with wave-resolving storm impact models require a proper offshore description for the incoming infragravity (IG) waves. This boundary condition is generally obtained by assuming a local equilibrium between the directionally-spr...
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Brandon J. Bethel, Changming Dong, Shuyi Zhou and Yuhan Cao
Though the ocean is sparsely populated by buoys that feature co-located instruments to measure surface winds and waves, their data is of vital importance. However, due to either minor instrumentation failure or maintenance, intermittency can be a problem...
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Xiaoya Zang, Zhujun Zhang and Wei Fan
In this paper, an innovative profiler driven by tidal energy for long-term oceanographic measurements in offshore areas with abundant tidal resources is investigated. The profiler is mainly composed of an oceanographic data collection system equipped wit...
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Snje?ana Marku?ic, Davor Stanko, Davorin Penava, Domagoj Trajber and Radmila ?alic
Trako?can Castle, built on a rocky peak in the late 13th century, is a cultural heritage site protected as a historical entity by the Republic of Croatia. The Castle is constructed as a highly irregular masonry structure with timber or shallow masonry ar...
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Diogo Mendes, Joaquim Pais-Barbosa, Paulo Baptista, Paulo A. Silva, Cristina Bernardes and Celso Pinto
In Aveiro (NW coast of Portugal), a coastal monitoring programme was carried out in sequence of a shoreface nourishment intervention (over than 2 M m3" role="presentation" style="position: relative;">33
3
) performed in 2020. In this programme, almost on...
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Brandon J. Bethel, Yana Buravleva and Decai Tang
Following the global shutdown of tourism at the onset of the COVID-19 pandemic, small island developing states such as The Bahamas had their economies immobilized due to their heavy dependence on the industry. Beyond economic recovery in a post COVID-19 ...
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Saeed Hariri
This paper describes the near-surface transport properties and Lagrangian statistics in the Adriatic semi-enclosed basin using synthetic drifters. Lagrangian transport models were used to simulate synthetic trajectories from the mean flow fields obtained...
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Dieter Issler
Data on the disastrous snow avalanche that occurred on 18 January 2017 at the spa hotel Rigopiano, municipality of Farindola in the Abruzzo region of central Italy, are analyzed in different ways. The main results are the following. (i) The 2017 Rigopian...
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Vladimir Zalesny, Valeriy Agoshkov, Victor Shutyaev, Eugene Parmuzin and Natalia Zakharova
The technology is presented for modeling and prediction of marine hydrophysical fields based on the 4D variational data assimilation technique developed at the Marchuk Institute of Numerical Mathematics, Russian Academy of Sciences (INM RAS). The technol...
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