Zobrazeno 1 - 10
of 28
pro vyhledávání: '"David Ahijevych"'
Autor:
Ryan A. Sobash, David John Gagne, Charlie L. Becker, David Ahijevych, Gabrielle N. Gantos, Craig S. Schwartz
Publikováno v:
Monthly Weather Review.
While convective storm mode is explicitly depicted in convection-allowing model (CAM) output, subjectively diagnosing mode in large volumes of CAM forecasts can be burdensome. In this work, four machine learning (ML) models were trained to probabilis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4cb23253f9c7a118a4f8786cd75e619
https://doi.org/10.1175/mwr-d-22-0342.1
https://doi.org/10.1175/mwr-d-22-0342.1
Publikováno v:
Monthly Weather Review. 149:3265-3287
A 50-member convection-allowing ensemble was used to examine environmental factors influencing afternoon convection initiation (CI) and subsequent severe weather on 5 April 2017 during intensive observing period (IOP) 3b of the Verification of the Or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5397e998cf3125eb718b58752c13faf
https://doi.org/10.1175/mwr-d-21-0111.1
https://doi.org/10.1175/mwr-d-21-0111.1
Publikováno v:
Weather and Forecasting. 35:1289-1315
This article investigates combining a WRF-ADCIRC ensemble with track clustering to evaluate how uncertainties in tropical cyclone–induced storm tide (surge + tide) predictions vary in space and time and to explore whether this method can help eluci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c789bd10dc3ca2838c40c018ea896b68
https://doi.org/10.1175/waf-d-19-0169.1
https://doi.org/10.1175/waf-d-19-0169.1
Publikováno v:
Weather and Forecasting. 34:1633-1656
A 50-member convection-allowing ensemble is used to examine effects of daytime PBL evolution and ambient flow interacting with modest terrain features on convection initiation (CI) in the lee of the Rocky Mountains. The examined case (4 June 2015) ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa910f0157bc7eaa29a7e079a48ea3ab
https://doi.org/10.1175/waf-d-19-0087.1
https://doi.org/10.1175/waf-d-19-0087.1
Autor:
Melissa Bica, Heather Lazrus, Kenneth M. Anderson, Joshua Watts, Christopher A. Davis, David Ahijevych, Julie L. Demuth, Marina Kogan, Leysia Palen, Olga V. Wilhelmi, Rebecca E. Morss, Chris Snyder, Kevin Stowe, Jennings Anderson, Jennifer Henderson, Kathryn R. Fossell, C. Michael Barton
Publikováno v:
Bulletin of the American Meteorological Society. 98:2653-2674
During the last few decades, scientific capabilities for understanding and predicting weather and climate risks have advanced rapidly. At the same time, technological advances, such as the Internet, mobile devices, and social media, are transforming
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b76f412da6aba2c71d8dc859456b282
https://doi.org/10.1175/bams-d-16-0058.1
https://doi.org/10.1175/bams-d-16-0058.1
Publikováno v:
Monthly Weather Review. 145:5103-5121
The potential for storm surge to cause extensive property damage and loss of life has increased urgency to more accurately predict coastal flooding associated with landfalling tropical cyclones. This work investigates the sensitivity of coastal inund
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9966a2b6953927f26f1a6653652e0a31
https://doi.org/10.1175/mwr-d-17-0051.1
https://doi.org/10.1175/mwr-d-17-0051.1
Publikováno v:
Monthly Weather Review. 145:2919-2941
Radiosonde measurements from the Plains Elevated Convection At Night (PECAN) 2015 field campaign are used to diagnose mesoscale vertical motions near nocturnal convection initiation (CI). These CI events occur in distinctly different environments inc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86c68ab60b5d3243cd4f76b817bc37d6
https://doi.org/10.1175/mwr-d-17-0005.1
https://doi.org/10.1175/mwr-d-17-0005.1
Evaluating Medium-Range Tropical Cyclone Forecasts in Uniform- and Variable-Resolution Global Models
Publikováno v:
Monthly Weather Review. 144:4141-4160
An evaluation of medium-range forecasts of tropical cyclones (TCs) is performed, covering the eastern North Pacific basin during the period 1 August–3 November 2014. Real-time forecasts from the Model for Prediction Across Scales (MPAS) and operati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a5505af9eee9f9637f625317c852d04
https://doi.org/10.1175/mwr-d-16-0021.1
https://doi.org/10.1175/mwr-d-16-0021.1
Publikováno v:
Weather and Forecasting. 31:581-599
A data mining and statistical learning method known as a random forest (RF) is employed to generate 2-h forecasts of the likelihood for initiation of mesoscale convective systems (MCS-I). The RF technique uses an ensemble of decision trees to relate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0682a7445ba6142cfd1ac13df8b1fe99
https://doi.org/10.1175/waf-d-15-0113.1
https://doi.org/10.1175/waf-d-15-0113.1
Autor:
Glen S. Romine, Stanley B. Trier, David J. Stensrud, Russ S. Schumacher, Michael C. Coniglio, Robert J. Trapp, David Ahijevych
Publikováno v:
Monthly Weather Review. 143:3726-3753
In this study, the authors examine initiation of severe convection along a daytime surface dryline in a 10-member ensemble of convection-permitting simulations. Results indicate that the minimum buoyancy Bmin of PBL air parcels must be small (Bmin >
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc81a9cb99e7afa82604c788227e9c05
https://doi.org/10.1175/mwr-d-15-0133.1
https://doi.org/10.1175/mwr-d-15-0133.1