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1. Optimized raindrop size distribution retrieval and quantitative rainfall estimation from polarimetric radar

Author:
Huang, Hao; Zhao, Kun; Zhang, Guifu; Hu, Dongming; Yang, Zhengwei
Source:
Journal of hydrology 2020 v.580 pp. 124248
ISSN:
0022-1694
Subject:
rain; rain gauges,   etc   ; hydrology; polarimetry; radar; China;     Show all 6 Subjects
Abstract:
... A variational approach for optimized drop size distribution (DSD) retrieval, attenuation correction, and rainfall estimation from polarimetric radar measurements (horizontal reflectivity factor ZH, differential reflectivity ZDR, and differential phase shift ΦDP) is proposed in this study. The spatial continuity of rain is guaranteed by introducing the radial B-spine filter and azimuthal Kalman fil ...
DOI:
10.1016/j.jhydrol.2019.124248

2. An improvement of convective precipitation nowcasting through lightning data dynamic nudging in a cloud-resolving scale forecasting system

Author:
Wang, Hong; Chen, Dehui; Yin, Jinfang; Xu, Daosheng; Dai, Guangfeng; Chen, Luwen
Source:
Atmospheric research 2020 v.242 pp. 104994
ISSN:
0169-8095
Subject:
rain,   etc   ; lightning; prediction; radar;     Show all 4 Subjects
Abstract:
... A lightning data dynamic nudging (LDN) method was designed to adjust the dynamic field in convective clouds based on the physical relationship between lightning and vertical velocity. Under this framework, vertical velocity data retrieved from the Guangdong–Hongkong–Macau lightning location system were assimilated by a nudging approach using the Global/Regional Assimilation and Prediction System i ...
DOI:
10.1016/j.atmosres.2020.104994

3. Evaluation of extreme rainfall indices from CHIRPS precipitation estimates over the Brazilian Amazonia

Author:
Cavalcante, Rosane Barbosa Lopes; Ferreira, Douglas Batista da Silva; Pontes, Paulo Rógenes Monteiro; Tedeschi, Renata Gonçalves; da Costa, Cláudia Priscila Wanzeler; de Souza, Everaldo Barreiros
Source:
Atmospheric research 2020 v.238 pp. 104879
ISSN:
0169-8095
Subject:
rain; rain gauges,   etc   ; data collection; wet season; Amazonia;     Show all 5 Subjects
Abstract:
... Since several datasets are available with marked differences, the assessment of precipitation data is a key aspect to support the choice of the most adequate precipitation product for a certain research or operational application. In the present study, we evaluated the use of the daily rainfall dataset from CHIRPS with spatial resolution of 0.05° for different purposes in the states of the Brazili ...
DOI:
10.1016/j.atmosres.2020.104879

4. Assessment of GPM IMERG and radar quantitative precipitation estimation (QPE) products using dense rain gauge observations in the Guangdong-Hong Kong-Macao Greater Bay Area, China

Author:
Li, Xue; Chen, Yangbo; Wang, Huanyu; Zhang, Yueyuan
Source:
Atmospheric research 2020 v.236 pp. 104834
ISSN:
0169-8095
Subject:
rain; rain gauges,   etc   ; algorithms; floods; monitoring; radar; urban areas; China;     Show all 8 Subjects
Abstract:
... The recent intensification of extreme rainfall events has the potential to aggravate the frequency and intensity of floods in urban areas and signals the urgent need for accurate and high spatiotemporal resolution precipitation data for flood monitoring and warning to alleviate the associated damages. In this context, this paper aims to statistically assess the latest Integrated Multisatellite Ret ...
DOI:
10.1016/j.atmosres.2019.104834

5. Performance of five high resolution satellite-based precipitation products in arid region of Egypt: An evaluation

Author:
Nashwan, Mohamed Salem; Shahid, Shamsuddin; Dewan, Ashraf; Ismail, Tarmizi; Alias, Noraliani
Source:
Atmospheric research 2020 v.236 pp. 104809
ISSN:
0169-8095
Subject:
rain; rain gauges,   etc   ; arid zones; models; satellites; Egypt;     Show all 6 Subjects
Abstract:
... High-resolution daily precipitation estimation is very important in climatological and meteorological studies in the arid regions of the world, as precipitation events in these areas can be sporadic, localized and of very high intensity. In this study, the daily performance of five, ARC2, CHIRPS v2.0, GSMaP (v. 6), TAMSAT (v. 3) and PERSIANN-CCS high resolution satellite-based gauge-corrected prec ...
DOI:
10.1016/j.atmosres.2019.104809

6. Improving weather radar precipitation maps: A fuzzy logic approach

Author:
Silver, Micha; Svoray, Tal; Karnieli, Arnon; Fredj, Erick
Source:
Atmospheric research 2020 v.234 pp. 104710
ISSN:
0169-8095
Subject:
rain; rain gauges,   etc   ; coasts; fuzzy logic; geostatistics; radar; uncertainty;     Show all 7 Subjects
Abstract:
... Weather radar can provide spatially explicit precipitation grids. However interference, ground clutter and various causes of attenuation introduce uncertainty into the result. Typically, rain gauge observations, recognized as a precise measure of precipitation at point locations, are used to adjust weather radar grids to obtain more accurate precipitation maps. This adjustment involves one or more ...
DOI:
10.1016/j.atmosres.2019.104710

7. Comparison of three types of laser optical disdrometers under natural rainfall conditions

Author:
Johannsen, Lisbeth Lolk; Zambon, Nives; Strauss, Peter; Dostal, Tomas; Neumann, Martin; Zumr, David; Cochrane, Thomas A.; Blöschl, Günter; Klik, Andreas
Source:
Hydrological sciences journal 2020 v.65 no.4 pp. 524-535
ISSN:
2150-3435
Subject:
rain; rain gauges,   etc   ; kinetic energy; regression analysis; Austria;     Show all 5 Subjects
Abstract:
... Optical disdrometers can be used to estimate rainfall erosivity; however, the relative accuracy of different disdrometers is unclear. This study compared three types of optical laser-based disdrometers to quantify differences in measured rainfall characteristics and to develop correction factors for kinetic energy (KE). Two identical PWS100 (Campbell Scientific), one Laser Precipitation Monitor (T ...
DOI:
10.1080/02626667.2019.1709641
PubMed:
32257534
PubMed Central:
PMC7077348

8. A physics-based model to derive rainfall intensity-duration threshold for debris flow

Author:
Zhang, S.J.; Xu, C.X.; Wei, F.Q.; Hu, K.H.; Xu, H.; Zhao, L.Q.; Zhang, G.P.
Source:
Geomorphology 2020 v.351 pp. 106930
ISSN:
0169-555X
Subject:
rain; rain intensity,   etc   ; mass movement; model validation; models; prediction; China;     Show all 7 Subjects
Abstract:
... A statistical method to establish an intensity-duration curve (I-D curve) for debris flows is highly dependent on a large amount of debris flows and rainfall events and is impossible for a gully lacking observation data. To overcome this limitation, a physics-based model to derive the I-D curve is presented. In this new model, the density of the debris flow is chosen as the key parameter, based on ...
DOI:
10.1016/j.geomorph.2019.106930

9. A downscaling-merging method for high-resolution daily precipitation estimation

Author:
Chen, Fengrui; Gao, Yongqi; Wang, Yiguo; Li, Xi
Source:
Journal of hydrology 2020 v.581 pp. 124414
ISSN:
0022-1694
Subject:
rain; rain gauges,   etc   ; geostatistics; hydrology; models; satellites; China;     Show all 7 Subjects
Abstract:
... Due to the strong variation of precipitation in time and space, it is necessary to generate accurate precipitation data with high spatiotemporal resolution. This is essential for many applications such as hydrological and meteorological analysis. However, achieving such data over a large area remains a tremendous challenge. In this study, we presented a downscaling-merging method to solve this pro ...
DOI:
10.1016/j.jhydrol.2019.124414

10. Correction to: Rainwater storage/infiltration function of rain gardens for management of urban storm runoff in Japan

Author:
Zhang, Linying; Oyake, Yui; Morimoto, Yukihiro; Niwa, Hideyuki; Shibata, Shozo
Source:
Landscape and ecological engineering 2020 v.16 no.1 pp. 69
ISSN:
1860-1871
Subject:
rain,   etc   ; bioretention areas; stormwater; Japan;     Show all 4 Subjects
Abstract:
... In the original publication of the article, Figure 1 was published incorrectly. The correct figure is given below. ...
DOI:
10.1007/s11355-019-00397-4

11. Data assimilation of a dense wind profiler network and its impact on convective forecasting

Author:
Wang, Cheng; Chen, Yaodeng; Chen, Min; Shen, Jie
Source:
Atmospheric research 2020 v.238 pp. 104880
ISSN:
0169-8095
Subject:
rain,   etc   ; meteorological data; momentum; prediction; radar; wind;     Show all 6 Subjects
Abstract:
... Two momentum control variable schemes are typically used in most data assimilation systems: stream function and unbalanced velocity potential (ψ/χᵤscheme) and eastward and northward velocity (U/V scheme). The wind profiler radar (profiler) plays an important role in the expansion of meteorological observations networks. In this study, the impacts of two momentum control variable schemes on assimil ...
DOI:
10.1016/j.atmosres.2020.104880

12. Preliminary analysis of some characteristics of coseismic landslides induced by the Hokkaido Iburi-Tobu earthquake (September 5, 2018), Japan

Author:
Zhao, Bo; Wang, Yunsheng; Feng, Qianqian; Guo, Fengshuang; Zhao, Xun; Ji, Feng; Liu, Jiangwei; Ming, Weiting
Source:
Catena 2020 v.189 pp. 104502
ISSN:
0341-8162
Subject:
rain,   etc   ; earthquakes; hills; landslides; pumice; ravines; Japan;     Show all 7 Subjects
Abstract:
... At 18:07 on September 5, 2018 (UTC), a Mw 6.6 earthquake struck the Iburi-Tobu area of Hokkaido, Japan. The Hokkaido Iburi-Tobu (HIT) earthquake is a reverse-slip earthquake with a focal depth of 33.4 km at 42.69°N and 142.07°E. According to the detailed landslide interpretations, there were approximately 7059 landslides induced by this earthquake concentrated in an area of 466 km². The landslides ...
DOI:
10.1016/j.catena.2020.104502

13. Dominant mechanism for annual maximum flood and sediment events generation in the Yellow River basin

Author:
Ran, Qihua; Zong, Xinyi; Ye, Sheng; Gao, Jihui; Hong, Yanyan
Source:
Catena 2020 v.187 pp. 104376
ISSN:
0341-8162
Subject:
rain,   etc   ; floods; runoff; sediments; watersheds; Yellow River;     Show all 6 Subjects
Abstract:
... Along with big floods, the heavily loaded sediments have caused devastating social and economic impairments in the Yellow River Basin (YRB). However, the regional differences in the dominant mechanisms for these extreme events haven’t been fully understood. This study selected 68 hydrological stations in the YRB to examine the seasonality of annual maximum rainfall, runoff and sediment events to e ...
DOI:
10.1016/j.catena.2019.104376

14. Shaking table tests on reinforced soil retaining walls subjected to the combined effects of rainfall and earthquakes

Author:
Ren, Feifan; Huang, Qiangqiang; Wang, Guan
Source:
Engineering geology 2020 v.267 pp. 105475
ISSN:
0013-7952
Subject:
rain,   etc   ; deformation; earthquakes; geophysics; models; soil;     Show all 6 Subjects
Abstract:
... Earthquakes and rainfall often occur together, and their combined effects on reinforced soil retaining walls (RSRW) are not investigated in detail. In this paper, shaking table tests were carried out in model-scale to investigate seismic performance of RSRW subjected to the combined forces of rainfall and earthquakes. Five cases with different degrees of saturation for the model ground were consid ...
DOI:
10.1016/j.enggeo.2020.105475

15. General modeling of karst spring hydrographs and development of a dimensionless karstic hydrograph concept

Author:
Şen, Zekâi
Source:
Hydrogeology journal 2020 v.28 no.2 pp. 549-559
ISSN:
1431-2174
Subject:
rain,   etc   ; aquifers; hydrograph; mathematical models; springs (water);     Show all 5 Subjects
Abstract:
... The response of a karstic-aquifer solution-cavity network subjected to a rainfall event leads to a hydrograph with rapidly increasing rising limb, but comparatively slower recession limb. In published studies, initial (early time) recession limb discharges have been modeled by consideration of the square root (nonlinear) response of the hydraulic head to karstic-sinkhole spring discharge. Late-tim ...
DOI:
10.1007/s10040-019-02085-x

16. The Effect of Nonstationarity in Rainfall on Urban Flooding Based on Coupling SWMM and MIKE21

Author:
Yang, Linhan; Li, Jianzhu; Kang, Aiqing; Li, Shuai; Feng, Ping
Source:
Water resources management 2020 v.34 no.4 pp. 1535-1551
ISSN:
0920-4741
Subject:
rain,   etc   ; floods; simulation models; urban areas;     Show all 4 Subjects
Abstract:
... The characteristics of urban pluvial flooding are altering all over the world due to environmental change. In this paper, generalized additive models for location, scale and shape (GAMLSS) was employed to analyze nonstationary frequency of extreme precipitation at subdaily scale. Nonstationary precipitation return periods were estimated using the expected waiting time (EWT) interpretation. A model ...
DOI:
10.1007/s11269-020-02522-7

17. Joint frequency analysis and uncertainty estimation of coupled rainfall–runoff series relying on historical and simulated data

Author:
Dodangeh, Esmaeel; Shahedi, Kaka; Pham, Binh Thai; Solaimani, Karim
Source:
Hydrological sciences journal 2020 v.65 no.3 pp. 455-469
ISSN:
2150-3435
Subject:
rain,   etc   ; hydrologic engineering; runoff; uncertainty; watersheds;     Show all 5 Subjects
Abstract:
... Joint frequency analysis and quantile estimation of extreme rainfall and runoff (ERR) are crucial for hydrological engineering designs. The joint quantile estimation of the historical ERR events is subject to uncertainty due to the errors that exist with flow height measurements. This study is motivated by the interest in introducing the advantages of using Hydrologic Simulation Program-Fortran (H ...
DOI:
10.1080/02626667.2019.1704762

18. Providing guidance on efficient flash flood documentation: an application based approach

Author:
Kaiser, Maria; Günnemann, Stephan; Disse, Markus
Source:
Journal of hydrology 2020 v.581 pp. 124466
ISSN:
0022-1694
Subject:
rain,   etc   ; data collection; floods; runoff; Germany;     Show all 5 Subjects
Abstract:
... Flash flood research crucially relies on historical event information for hypothesis testing. However, flash flood science suffers from data scarcity. Due to the high effort for event data collection, few long-term and comprehensive flash flood datasets exist. Yet, to advance flash flood research, scientists should spend time on creating event datasets. Therefore, to reduce the data collection and ...
DOI:
10.1016/j.jhydrol.2019.124466

19. SRS-GDA: A spatial random sampling toolbox for grid-based hydro-climatic data analysis in environmental change studies

Author:
Wang, Han; Xuan, Yunqing
Source:
Environmental modelling & software 2020 v.124 pp. 104598
ISSN:
1364-8152
Subject:
rain,   etc   ; case studies; climate models; data collection;     Show all 4 Subjects
Abstract:
... We present in this paper the development of a new, open-source MATLAB toolbox SRS-GDA that aims to provide random spatial sampling of grid-based hydro-climatic datasets for environmental change studies. This toolbox addresses the needs of quantifying how hydro-climatic responses, which are often driven by grid-based forcing datasets such as climate model projections, vary with location and scale. ...
DOI:
10.1016/j.envsoft.2019.104598

20. Diverse pathways—common phenomena: comparing transitions of urban rainwater harvesting systems in Stockholm, Berlin and Barcelona

Author:
Suleiman, Lina; Olofsson, Bo; Saurí, David; Palau-Rof, Laura; García Soler, Natàlia; Papasozomenou, Ourania; Moss, Timothy
Source:
Journal of environmental planning and management 2020 v.63 no.2 pp. 369-388
ISSN:
1360-0559
Subject:
rain,   etc   ; cities; drainage systems; landscapes; water harvesting;     Show all 5 Subjects
Abstract:
... Urban rainwater management is the terrain of varied initiatives that challenge existing drainage systems. The initiatives that this article refers to as Urban Rainwater Harvesting (URH), promise a more sustainable urban water approach; however, they remain isolated “niche” projects. The article aims to investigate challenges and opportunities for mainstreaming alternative URHs as sociotechnical sy ...
DOI:
10.1080/09640568.2019.1589432