Use of NWP for nowcasting convective precipitation: Recent progress and challenges

J Sun, M Xue, JW Wilson, I Zawadzki… - Bulletin of the …, 2014 - journals.ametsoc.org
Traditionally, the nowcasting of precipitation was conducted to a large extent by means of
extrapolation of observations, especially of radar ref lectivity. In recent years, the blending of …

Review of the ensemble Kalman filter for atmospheric data assimilation

PL Houtekamer, F Zhang - Monthly Weather Review, 2016 - journals.ametsoc.org
This paper reviews the development of the ensemble Kalman filter (EnKF) for atmospheric
data assimilation. Particular attention is devoted to recent advances and current challenges …

[KİTAP][B] Rank issues

G Evensen, G Evensen - 2009 - Springer
It is in the previous chapters stated that the EnKF analysis scheme may have problems in
cases where the number of measurements is larger than the number of members in the …

Convective-scale warn-on-forecast system: A vision for 2020

DJ Stensrud, M Xue, LJ Wicker… - Bulletin of the …, 2009 - journals.ametsoc.org
The National Oceanic and Atmospheric Administration's (NOAA's) National Weather Service
(NWS) issues warnings for severe thunderstorms, tornadoes, and flash floods because …

Ensemble Kalman filter assimilation of Doppler radar data with a compressible nonhydrostatic model: OSS experiments

M Tong, M Xue - Monthly Weather Review, 2005 - journals.ametsoc.org
A Doppler radar data assimilation system is developed based on an ensemble Kalman filter
(EnKF) method and tested with simulated radar data from a supercell storm. As a first …

Ensemble kalman filtering

PL Houtekamer, HL Mitchell - Quarterly Journal of the Royal …, 2005 - Wiley Online Library
Abstract An ensemble Kalman filter (EnKF) has been implemented at the Canadian
Meteorological Centre to provide an ensemble of initial conditions for the medium‐range …

Cloud-resolving hurricane initialization and prediction through assimilation of Doppler radar observations with an ensemble Kalman filter

F Zhang, Y Weng, JA Sippel, Z Meng… - Monthly Weather …, 2009 - journals.ametsoc.org
This study explores the assimilation of Doppler radar radial velocity observations for cloud-
resolving hurricane analysis, initialization, and prediction with an ensemble Kalman filter …

A hybrid ETKF–3DVAR data assimilation scheme for the WRF model. Part I: Observing system simulation experiment

X Wang, DM Barker, C Snyder… - Monthly Weather …, 2008 - journals.ametsoc.org
A hybrid ensemble transform Kalman filter–three-dimensional variational data assimilation
(ETKF–3DVAR) system for the Weather Research and Forecasting (WRF) Model is …

Warn-on-Forecast System: From vision to reality

PL Heinselman, PC Burke, LJ Wicker… - Weather and …, 2024 - journals.ametsoc.org
In 2009, advancements in NWP and computing power inspired a vision to advance
hazardous weather warnings from a warn-on-detection to a warn-on-forecast paradigm. This …

A multicase comparative assessment of the ensemble Kalman filter for assimilation of radar observations. Part I: Storm-scale analyses

A Aksoy, DC Dowell, C Snyder - Monthly Weather Review, 2009 - journals.ametsoc.org
The effectiveness of the ensemble Kalman filter (EnKF) for assimilating radar observations at
convective scales is investigated for cases whose behaviors span supercellular, linear, and …