Open AccessAdjoint modelling experiments on eruptive columns
Author(s) -
Charpentier I.
Publication year - 2007
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.2007.03404.x
Subject(s) - minification , column (typography) , troposphere , geology , data assimilation , sensitivity (control systems) , inflow , code (set theory) , radius , algorithm , meteorology , mathematics , geometry , computer science , mathematical optimization , atmospheric sciences , physics , engineering , oceanography , computer security , set (abstract data type) , connection (principal bundle) , electronic engineering , programming language
SUMMARY This paper is concerned with data assimilation techniques applied to Plinian columns. A minimization problem, based on the Woods model and an objective function involving radius, temperature and velocity data, is written. After the differentiation of the computer code, sensitivity analyses and optimization experiments are performed. Numerical results show the interest of ground‐based observations of the tropospheric part of the column for the identification of inflow conditions.