An important goal of combining weather radar with rain gauge data is to provide reliable estimates rainfall rate and accumulation further identify intense precipitation issue flood warnings. Scanning radars the ability observe over wider areas within shorter timeframes compared gauges, leading improved situational awareness more accurate warnings future flooding events. The focus this study on evaluating performance multi-radar multi-sensor (MRMS) system without impact a local gap filling...

The dual-frequency precipitation radar (DPR) onboard the global measurement (GPM) satellite provides valuable measurements of precipitation. In this study, GPM DPR products (version 6) are validated against a ground-based S-band polarimetric in South China based on volume-matching method. Good consistency is found for reflectivity factor ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$Z$...

Abstract This paper presents an extended error variance separation method (EEVS) that allows explicit partitioning of the errors in gauge- and radar-based representations areal rainfall. The implementation EEVS demonstrated this study combines a kriging scheme for estimating rainfall from gauges with sampling determining correlation between radar-related errors. On basis framework, examines scale- pixel-dependent impacts subpixel-scale variability on perceived four conterminous Hydrologic...

Abstract Global warming has a significant impact on the ecosystem of high‐altitude areas Tibetan Plateau, such as land degradation and rapid retreat glaciers. It is important to understand effects global occurring over hundreds or thousands years. However, long‐term reconstruction temperature still lacking for region Western Sichuan Plateau (WSP). In this study, we reconstructed summer (June–July) temperatures back 1383 WSP based positive correlation between standard chronology temperature....

Abstract This paper assesses the accuracy of satellite quantitative precipitation estimates (QPEs) from two versions Self-Calibrating Multivariate Precipitation Retrieval (SCaMPR) algorithm relative to that gridded gauge-only QPEs. The second version SCaMPR uses QPEs Tropical Rainfall Measuring Mission (TRMM) Radar and Microwave Imager as predictands whereas first does not. assessments were conducted for 22 catchments in Texas Louisiana against National Weather Service operational...

The strong destructive winds during tornadoes can greatly threaten human life and destroy property. increasing availability of visual remote observations, especially by Doppler weather radars, is great value in understanding tornado formation issuing warnings to the public. In this study, we present first documented over water detected a state-of-the-art dual-polarization phased-array radar (dual-PAR) China. contrast new-generation dual-PAR shows advantages detection for its high spatial...

Abstract The impact of assimilating China's operational X‐band Phased‐Array radar's (X‐PAR) data on the analysis and warning forecast vortex structure intensity June 8, 2018 Foshan, Guangdong province, tornadic storm was investigated for first time using an Ensemble Kalman Filter (EnKF) assimilation system. Both radar radial velocity (Vr) reflectivity ( Z ) from two S‐band radars one X‐PAR were assimilated. Deterministic forecasts launched every 6 min 05:42 UTC (20 before tornado touched...

Due to the lack of long-term climate records, our understanding paleoclimatic variability in Tibetan Plateau (TP) is still limited. In this study, we developed a tree-ring width (TRW) chronology based on cores collected from study site, southeastern TP. This responded well mean maximum temperatures May–June and was thus used reconstruct early summer (May–June) temperature during period 1541–2019. The reconstruction explained 33.6% climatic variance calibration 1962–2019. There were 34...

The stable isotopes (2H, 18O) of precipitation change due to the sub-cloud secondary evaporation during raindrop fall. study temporal and spatial variation its causes by using hydrogen oxygen is great significance regional water cycle process. Based on hourly meteorological data 648 stations in 17 provinces (cities) Yangtze River Basin from March 2018 February 2019, we analyzed characteristics excess deuterium (Δd) region, based improved Stewart model. We discuss various influence factors...

CoNiFe patterned films with rectangular elements, all 600-nm wide but of different lengths, were fabricated and investigated by ferromagnetic resonance experiment micromagnetic simulation. An in-plane magnetic uniaxial anisotropy was exhibited, its value increases the increase aspect ratio which fitted model, including a quasi-ellipsoid demagnetizing field non-uniform field. The relative importance decreased from 0.26 to 0.16 length—width element 1.5 10. factors in three principal axes...

Observations from the WPR located in Zhanjing are used to analysis characteristics of wind field and virtual temperature boundary layer under three kinds synoptic processes during 5 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sup> –12 April, 2010. The results show that: (1) horizontal velocity first increased then decreased with altitude low level spring fair weather over Zhanjing, maxima range 7–16 m/s, also decreased, less than 20 m/s...

The impacts of stratospheric initial conditions and vertical resolution on the stratosphere by raising model top, refining resolution, assimilation operationally available observations, including conventional satellite continental U. S. winter short-range weather forecasting, were investigated in this study. predicted wind temperature profiles analyzed against observations. Generally, bias better adjusted when a higher top refined used. Negative also observed both profiles, over lower...