نتایج جستجو برای: heavier rain falls

تعداد نتایج: 63631  

Journal: :Journal of Hydrology 2021

• A new approach to reduce the systematic biases of TMPA-RT in real time is proposed. Systematic bias and RMSE were significantly reduced after adjustment. Method focus on correcting hit bias, rarely corrected false precipitation. The limitation CSMW less improvement correlation coefficients. An improved cumulative distribution function (CDF)-based multi-satellite precipitation estimates propos...

2003
David Draper Michael A. Jensen Karl F. Warnick Brian D. Jeffs Travis E. Oliphant BRIGHAM YOUNG David G. Long Douglas M. Chabries

WIND SCATTEROMETRY WITH IMPROVED AMBIGUITY SELECTION AND RAIN MODELING David Draper Electrical and Computer Engineering Doctor of Philosophy Although generally accurate, the quality of SeaWinds on QuikSCAT scatterometer ocean vector winds is compromised by certain natural phenomena and retrieval algorithm limitations. This dissertation addresses three main contributers to scatterometer estimate...

2016
Hansong Guo He Huang Jianxin Wang Shaojie Tang Zhenhua Zhao Zehao Sun Yu-e Sun Liusheng Huang Hengchang Liu

Real-time and fine-grained rain information is crucial not only for climate research, weather prediction, water resources management, agricultural production, urban planning and natural disasters monitoring, but also for applications in our daily lives. However, because of the lack of rain detection systems and the high variable attribute of rain, both in time and space, the rain detection toda...

2014
Meriem Ferroudj Anthony Truskinger Michael W. Towsey Liang Zhang Jinglan Zhang Paul Roe

Environmental monitoring has become increasingly important due to the significant impact of human activities and climate change on biodiversity. Environmental sound sources such as rain and insect vocalizations are a rich and underexploited source of information in environmental audio recordings. This paper is concerned with the classification of rain within acoustic sensor recordings. We prese...

2010
S. Das A. Maitra A. K. Shukla

Rain drop size distributions (DSD) are measured with disdrometers at five different climatic locations in the Indian tropical region. The distribution of drop size is assumed to be lognormal to model the rain attenuation in the frequency range of 10–100 GHz. The rain attenuation is estimated assuming single scattering of spherical rain drops. Different attenuation characteristics are observed f...

2017
Jie Yu Jiquan Zhang Ming Zhang

Rain clusters are mesoscale disaster weather systems, and some of rain clusters have spiral structures. In this paper, a theoretical model of spiral rain cluster is established under pseudo-adiabatic approximation, and its horizontal structure equation is obtained. The study shows that the horizontal structure with spiral arm rain clusters has the following characteristics: at locations close e...

2016
K. Badron A. F. Ismail A. L. Asnawi S. Z. Abidin S. Dzulkifly

The occurrences of precipitation, also commonly referred as rain, in the form of "convective" and "stratiform" have been identified to exist worldwide. In this study, the radar return echoes or known as reflectivity values acquired from radar scans have been exploited in the process of classifying the type of rain endured. The investigation use radar data from Malaysian Meteorology Department (...

Journal: :Communications earth & environment 2021

Abstract Most of Earth’s rain falls in the tropics, often highly seasonal monsoon rains, which are thought to be coupled inter-hemispheric migrations Inter-Tropical Convergence Zone response cycle insolation. Yet characterization tropical rainfall behaviour geologic past is poor. Here we combine new and existing hydroclimate records from six large-scale regions with fully independent model-base...

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