Tomislava Vukicevic

TL;DR: In this article, an adjoint of the Pennsylvania State University-National Center for Atmospheric Research (PSU-NCAR) Mesoscale Model has been developed for use in sensitivity analysis following Cacuci.

TL;DR: The use of adjoint equations is proving to be invaluable in many areas of meteorological research as discussed by the authors, including variational data assimilation, parameter fitting, optimal instability and sensitivity analysis in general.

TL;DR: An update of the progress achieved as part of the NOAA Intensity Forecasting Experiment (IFEX) is provided in this article, with a brief summary of noteworthy aircraft missions flown in the years since 2005, the first year IFEX flights occurred, as well as a description of the research and development activities that directly address the three primary IFEX goals: 1) collect observations that span the tropical cyclone (TC) life cycle in a variety of environments for model initialization and evaluation; 2) develop and refine measurement strategies and technologies that provide improved real-time monitoring of TC intensity

TL;DR: In this article, the authors demonstrate that an additional important effect of the lateral boundaries is to restrict the scales at which errors can grow: if the domain is sufficiently large, forecast differences grow with time, but only at large scales.

TL;DR: In this article, the authors investigated the accuracy of a tangent linear version of a 3-dimensional mesoscale primitive equation model (the PSU/NCAR MM4) by comparing its results with those produced by identical perturbations introduced in nonlinear forecasts of the original model.