Search Results

You are looking at 1 - 10 of 172 items for :

  • Journal of Hydrometeorology x
  • Refine by Access: Content accessible to me x
Clear All
Jessica M. Erlingis, Jonathan J. Gourley, and Jeffrey B. Basara

regions as well as the predominant flow paths at several levels in the lower atmosphere. Section 4 provides a synthesis of the first part of the manuscript and introduces the content of the companion paper. 2. Methodology This study uses the wind fields in North American Regional Reanalysis (NARR; NCEP 2005 ; Mesinger et al. 2006 ) data to calculate kinematic backward trajectories for a database of flash flood events in order to assess the geographic origins of parcels that contribute to flash

Full access
Joseph Bellier, Michael Scheuerer, and Thomas M. Hamill

), lifted index (LI; Galway 1956 ), and total totals index (TT; Miller 1975 ). The hypothesis is that the atmosphere instability is associated with a risk of convection and then a higher spatial variability of rainfall, hence we assume a positive relationship between SD ( i , j ) and the above indices, except SI and LI for which a negative relationship is assumed (lower values are associated with higher instability). The second group gathers kinematic predictors: storm relative helicity (SRH

Restricted access
Joel R. Norris, F. Martin Ralph, Reuben Demirdjian, Forest Cannon, Byron Blomquist, Christopher W. Fairall, J. Ryan Spackman, Simone Tanelli, and Duane E. Waliser

, along with values for all the other subregions. The range of CIMC among subregions is substantial, varying from 10.0 mm h −1 for R03 to −7.4 mm h −1 for R06 and greatly exceeding the uncertainty of individual values. Nonetheless, this sizeable spatial variability largely averages out in the entire budget region since CIMC for B00 is only 0.7 mm h −1 . Fig . 11. Kinematic diagnostic profiles derived from the G-IV dropsondes composing the entire budget region (B00; black) and subregions with the

Open access
Mengye Chen, Zhi Li, Shang Gao, Xiangyu Luo, Oliver E. J. Wing, Xinyi Shen, Jonathan J. Gourley, Randall L. Kolar, and Yang Hong

authors also indicated that the framework could simulate sediment movement downstream in the future research plan. Since 2016, the Ensemble Framework For Flash Flood Forecasting (EF5) integrated the Coupled Routing and Excess Storage (CREST) distributed hydrological model, a 1D hydraulic model, with kinematic wave channel routing, to successfully simulate multiple extreme precipitation-triggered flash flooding events in Oklahoma City and Houston at a continental-scale implementation ( Flamig et al

Open access
Martyn P. Clark, Reza Zolfaghari, Kevin R. Green, Sean Trim, Wouter J. M. Knoben, Andrew Bennett, Bart Nijssen, Andrew Ireson, and Raymond J. Spiteri

. The Wigmosta and Lettenmaier experiments provide a test for the conditions where topography dominates subsurface flow, i.e., steep hillslopes with thin, permeable soils. Under these conditions, the slope of the water table is assumed to be parallel to the ground surface, and saturated subsurface flow can be modeled using a kinematic wave equation. Such simplifications are useful because the kinematic wave equation can be solved analytically using the method of characteristics. The Wigmosta and

Open access
Xuejian Cao, Guangheng Ni, Youcun Qi, and Bo Liu

landscape-based green infrastructure for stormwater management in suburban catchments . Hydrol. Processes , 32 , 2346 – 2361 , https://doi.org/10.1002/hyp.13144 . 10.1002/hyp.13144 Xiao , Q. , E. G. McPherson , J. R. Simpson , and S. L. Ustin , 2007 : Hydrologic processes at the urban residential scale . Hydrol. Processes , 21 , 2174 – 2188 , https://doi.org/10.1002/hyp.6482 . 10.1002/hyp.6482 Xiong , Y. , and C. S. Melching , 2005 : Comparison of kinematic-wave and nonlinear

Free access
Guotao Cui, Roger Bales, Robert Rice, Michael Anderson, Francesco Avanzi, Peter Hartsough, and Martha Conklin

– 18 436 , https://doi.org/10.1109/ACCESS.2019.2895397 . 10.1109/ACCESS.2019.2895397 Marks , D. , A. Winstral , M. Reba , J. Pomeroy , and M. Kumar , 2013 : An evaluation of methods for determining during-storm precipitation phase and the rain/snow transition elevation at the surface in a mountain basin . Adv. Water Resour. , 55 , 98 – 110 , https://doi.org/10.1016/j.advwatres.2012.11.012 . 10.1016/j.advwatres.2012.11.012 Marwitz , J. D. , 1983 : The kinematics of orographic

Free access
Natalie Teale and David A. Robinson

comprehensive climatology of moisture transport for the Northeast, the eastern United States, and adjacent Atlantic at large. This kinematics of water vapor transport will provide the atmospheric foundation for understanding the causes behind observed and projected changes in precipitation in the Northeast. This is the first paper in a series of three characterizing the relationship between moisture transport patterns and precipitation in the eastern United States. This first paper develops the moisture

Free access
Arianna Cauteruccio, Enrico Chinchella, Mattia Stagnaro, and Luca G. Lanza

the gauge were stretched upward to better resolve upward air motion due to buoyancy. Thin layers were added on the gauge surface so as to better reproduce the near wall velocity profile. For fluid dynamic simulations, the fluid air was modeled as a Newtonian incompressible fluid with kinematic viscosity υ a = 1.2 × 10 −5 m 2 s −1 and density ρ a = 1.3 kg m −3 at a reference environmental temperature T a = 0°C that acts as the threshold between solid and liquid precipitation. At the inlet

Open access
Ben S. Pickering, Steven Best, David Dufton, Maryna Lukach, Darren Lyth, and Ryan R. Neely III

. Molyneux , 2006 : Results of using present weather instruments in the United Kingdom. Tech. Rep., Met Office, 13 pp. Matson , R. J. , and A. W. Huggins , 1980 : The direct measurement of the sizes, shapes and kinematics of falling hailstones . J. Atmos. Sci. , 37 , 1107 – 1125 , https://doi.org/10.1175/1520-0469(1980)037<1107:TDMOTS>2.0.CO;2 . 10.1175/1520-0469(1980)037<1107:TDMOTS>2.0.CO;2 NERC, Met Office , B. S. Pickering , R. R. Neely III , and D. Harrison , 2019 : The

Open access