TY - JOUR
T1 - Large Eddy Simulation on Horizontal Convective Rolls that Caused an Aircraft Accident during its Landing at Narita Airport
AU - Ito, J.
AU - Niino, H.
AU - Yoshino, K.
N1 - Funding Information:
This work was supported by the Advancement of Meteorological and Global Environmental Predictions Utilizing Observational Big Data of the Social and Scientific Priority Issues (Theme 4) to be tackled using the post K computer of the FLAGSHIP 2020 Project. The numerical model, JMA-NHM, is available under a collaborative framework between the Meteorological Research Institute and related institutes and universities. Initial and boundary data (MANL and MGDSST) used in this study were provided by the Meteorological Research Consortium, a framework for research cooperation of the JMA and the Meteorological Society of Japan (http://www.mri-jma.go.jp/Project/cons/index.html). Outputs of the numerical simulation used in this study are available at https://doi.org/10.6084/m9.figshare.9449732.v3. Observational data (FDR and Doppler lidar at Narita Airport) used in this study are from Yoshino (). These observations are taken for operational aviation purposes and are not generally available. However, one of the coauthors (K. Yoshino) has been given permission to publish in his papers by All Nippon Airways and the JMA. We thank for two anonymous reviewers for their helpful comments.
Publisher Copyright:
©2020. American Geophysical Union. All Rights Reserved.
PY - 2020/3/28
Y1 - 2020/3/28
N2 - An accident occurred when an aircraft landed at Narita International Airport, Japan, on 20 June 2012. The aircraft encountered rapid changes of winds together with strong turbulence, although the weather was fair. In the present study, a two-domain nested regional weather prediction models are used. The results in the outer domain show that southwesterly winds associated with a synoptic extratropical cyclone were locally accelerated to the southwest of the airport resulting in strong vertical shear. The simulation in the inner domain reproduces horizontal convective rolls, which are similar to those observed by a Doppler lidar at the airport. The wind velocity component parallel to the runway had a spatial variation of about 10 m s -1. The present approach using a large eddy simulation is useful for clarifying environments and features of horizontal convective rolls and forecasting low-level wind shear associated with them, which can be a significant risk for aircraft.
AB - An accident occurred when an aircraft landed at Narita International Airport, Japan, on 20 June 2012. The aircraft encountered rapid changes of winds together with strong turbulence, although the weather was fair. In the present study, a two-domain nested regional weather prediction models are used. The results in the outer domain show that southwesterly winds associated with a synoptic extratropical cyclone were locally accelerated to the southwest of the airport resulting in strong vertical shear. The simulation in the inner domain reproduces horizontal convective rolls, which are similar to those observed by a Doppler lidar at the airport. The wind velocity component parallel to the runway had a spatial variation of about 10 m s -1. The present approach using a large eddy simulation is useful for clarifying environments and features of horizontal convective rolls and forecasting low-level wind shear associated with them, which can be a significant risk for aircraft.
KW - aircraft accident
KW - atmospheric boundary layer
KW - aviation meteorology
KW - horizontal convective roll
KW - large Eddy simulation
KW - numerical weather prediction
UR - http://www.scopus.com/inward/record.url?scp=85082508225&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85082508225&partnerID=8YFLogxK
U2 - 10.1029/2020GL086999
DO - 10.1029/2020GL086999
M3 - Article
AN - SCOPUS:85082508225
SN - 0094-8276
VL - 47
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 6
M1 - e2020GL086999
ER -