The study examines spatiotemporal distribution of fire weather conditions during the seasons 1990–2020 in mixed forests areas territory Belarus and Ukraine using monthly mean Fire Weather Index (FWI) averaged for each administrative area region. It was revealed that lowest FWI values were observed northern northwestern regions Belarus, highest southeast. On Ukraine, increase toward east regions...

The gradient of standard full-waveform inversion (FWI) attempts to map the residuals in the data to perturbations in the model. Such perturbations may include smooth background updates from the transmission components and high wavenumber updates from the reflection components. However, if we fix the reflection components using imaging, the gradient of what is referred to as reflected-waveform i...

An accurate velocity model is essential to make a good seismic image. Conventional methods perform Velocity Model Building (VMB) tasks rely on inverse methods, which, despite being widely used, are ill-posed problems that require intense and specialized human supervision. Convolutional Neural Networks (CNN) have been extensively investigated as an alternative solve the VMB task. Two main approa...

Abstract Recent years have seen unprecedented fire activity at high latitudes and knowledge of future wildfire risk is key for adaptation management. Here we present a systematic characterization the probability distributions (PDFs) weather conditions, how it arises from underlying meteorological drivers change, in five boreal forest regions, pre-industrial conditions different global warming l...

Abstract. In this study, we analyse the role of climate change in forest fires that raged through large parts Sweden summer 2018 from a meteorological perspective. This is done by studying Canadian Fire Weather Index (FWI) based on sub-daily data, both reanalysis data sets (ERA-Interim, ERA5, Japanese 55 year Reanalysis, JRA-55, and Modern-Era Retrospective analysis for Research Applications ve...

Irrigation with saline water is a possible solution to alleviate freshwater shortages. The long-term use of for irrigation requires consideration the influence salt on environmental conditions soil. objective this field study was determine effects three continuous years physiochemical properties and microbial communities in drip-irrigated cotton fields. total dissolved solid (TDS) levels treatm...

Cycle skipping problem caused by the absent of low frequencies and inaccurate initial model makes full waveform inversion (FWI) deviate from true model. A novel method is proposed to mitigate cycle phenomenon dynamic data matching which improves synthetic observed events regulate updating in a correct direction. 1-dimentional (1-D) Gaussian convolutional kernels with different lengths are used ...

The thermographic phosphor ScVO4:Bi3+ is used to obtain time-resolved surface temperature measurements with sub-oC precision at 5 kHz. Measurements are study transient heat loss and flame-wall interactions (FWI) within a dedicated narrow two-wall passage (crevice) in an optically accessible fixed volume chamber. This emulates crevice relevant many technical environments, where FWI less understo...

The antenna is the most important part of a ground-penetrating radar (GPR) system and defines employed electromagnetic pulse how it transferred to ground. It crucial account for these coupling effects in numerical simulations implement realistic models, e.g., full-waveform inversion (FWI). We present method developing adapting 3-D finite-difference time-domain (FDTD) models GPR antennas, comple...