|WORLD METEOROLOGICAL ORGANIZATION||
|Explanation of the criteria for classification and numbering of components||
|Explanation of the dates on the component's description|
RECONSTITUTION OF MISSING DATA BY REGRESSION (RÉMUS)
1. Purpose and objectives
RÉMUS reconstitutes missing values by using data observed at
neighbouring sites. This is done by means of various regression models,
including advanced techniques such as ridge regression which reduces the
effect of collinearity between explanatory variables.
To simulate the production of energy at a given site, Hydro-Quebec uses monthly mean values calculated on the basis of daily measurements. However, often some data in the monthly series are missing and must be reconstructed to provide a better basis for simulation studies.
RÉMUS is designed to reconstitute missing data with advanced modelling tools. The following options are available:
* multiple regression;
RÉMUS was originally developed for modelling monthly mean flows, but
other variables can be used as well. As default, the input data are
assumed to have the format used by Environment Quebec, but the user can
specify any other format as long as it is an ASCII format.
RÉMUS prints on screen or printer:
* results from different regression models (cf. 2. Description);
5. Operational requirements and restrictions
RÉMUS must be used on an IBM (or 100% compatible) personal computer, with an EGA graphics display (or better), and a hard disk with a minimum of
1 megabyte free. It is designed for use with MS-Dos 3.x (or later).
6. Form of presentation
RÉMUS is implemented in Pascal using object oriented programming and is contained on one diskette (3.5", 1.44 MB). The user guide (116 pages)
and the theoretical guide (60 pages) are in French.
7. Operational experience
Presently, the software Rémus is being used by several companies and organizations in Canada, and especially by the scientists of Hydro-Quebec.
8. Originator and technical support
RÉMUS was developed at INRS-Eau (National Institute of Scientific Research - Water), Quebec, Canada in collaboration with Hydro-Quebec. The project was financed by Hydro-Quebec and the Natural Sciences and
Engineering Council of Canada. Theoretical and technical information can
10. Conditions on use
The software is available at the price of $ 99.00 (CAN).
|(First entered: 01 MAR 94||
Last updated: 15 DEC 1999)