Ein diagnostisches Modell zur Berechnung von Trajektorien über dem Schweizer Mittelland
The aim of the presented model (called WITRA) is to use the data of the automatic wind stations on the Swiss Plateau as a basis for calculating back-trajectories over a complex terrain. WITRA interpolates a three-dimensional windfield out of the measured data and the radio-sonde profile of Payerne....
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | deu |
| Published: |
Copernicus Publications
|
| Series: | Geographica Helvetica |
| Online Access: | http://www.geogr-helv.net/46/42/1991/gh-46-42-1991.pdf |
| Summary: | The aim of the presented model (called WITRA) is to use the
data of the automatic wind stations on the Swiss Plateau as a
basis for calculating back-trajectories over a complex terrain.
WITRA interpolates a three-dimensional windfield out of the
measured data and the radio-sonde profile of Payerne. By a
mathematical method developed by SASAKI (1958) based
on the variational analysis and with regard to its application to
the investigated problem by SHERMAN (1978), the windfield
is slightly adjusted in a least-square sense in order to get it
free of divergence, i. e. mass-consistent. Within the same step
the complex terrain and its effects on the wind are taken into
account. Trajectories can be calculated by a method mentioned
by PETTERSSEN (1956) using a sequence of these windfields. |
|---|---|
| ISSN: | 0016-7312 2194-8798 |