This paper reviews the progress in our understanding of the atmospheric response to midlatitude oceanic fronts and eddies, emphasizing the Kuroshio-Oyashio Extension (KOE) region. Oceanic perturbations of interest consist of sharp oceanic fronts, temperat
致密砂岩油藏压裂水平井存在产能递减严重、整体采出程度低等问题.为提高压裂增产效果,文中从研究裂缝扩展规律及扩展形态入手,基于扩展有限元方法建立裂缝扩展数值模型,明确了天然裂缝发育及小水平应力差是形成复杂缝网的必要条件,阐述了密切割压裂改造技术在目标油藏的适用性.基于地质工程一体化思想,利用数值模拟方法,在保持压裂投入不变的前提下,对比不同裂缝参数组合方案的产油能力.结果 表明,“密切割+中低导流能力”的压裂设计方式,可有效提高单井产量.密切割压裂矿场试验表明,水平井压后初期日产油量为11.09 t,投产4
This study focuses on the temporal variation of dissimilarity in heat content (HC) anomalies in the upper 300 m of ocean (HC300A) in the equatorial Pacific (±10°N) and its response to the El Ni?o-Southern Oscillation (ENSO). The HC300A anomalies are deriv
Anthropogenic emission inventory for aerosols and reactive gases is crucial to the estimation of aerosol radiative forcing and climate effects. Here, the anthropogenic emission inventory for AerChemMIP, endorsed by CMIP6, is briefly introduced. The CMIP6
Idealized supercell storms are simulated with two aerosol-aware bulk microphysics schemes (BMSs), the Thompson and the Chen-Liu-Reisner (CLR), using the Weather Research and Forecast (WRF) model. The objective of this study is to investigate the parameter
A thunderstorm tracking algorithm is proposed to nowcast the possibility of lightning activity over an area of concern by using the total lightning data and neighborhood technique. The lightning radiation sources observed from the Beijing Lightning Networ
Before 2008, the number of surface observation stations in China was small. Thus, the surface observation data were too sparse to effectively support the High-resolution China Meteorological Administration\'s Land Assimilation System (HRCLDAS) which ult
In this paper, a scheme of dual-Doppler radar wind analysis based on a three-dimensional variational method is proposed and performed in two steps. First, the horizontal wind field is simultaneously recovered through minimizing a cost function defined as
Through multi-order structure function analysis and singularity measurement, the Hurst index and intermittent parameter are obtained to quantitatively describe the characteristics of atmospheric disturbance based on the round-trip intelligent sounding sys
The surface energy budget is closely related to freeze-thaw processes and is also a key issue for land surface process research in permafrost regions. In this study, in situ data collected from 2005 to 2015 at the Tanggula site were used to analyze surfac