TY - JOUR

T1 - Meteorological Data and Wind Field Modelling in the Dithmarschen Bight

AU - Benkel, Andreas

AU - Groß, Günter

PY - 2005

Y1 - 2005

N2 - The topic of this study was to identify meteorological data suitable for forcing numerical simulations of morphodynamic processes in the Dithmarschen Bight. A comparison between Numerical Weather Prediction (NWP) output data from the Local Model (LM) of the German Weather Service (Deutscher Wetterdienst - DWD) and PRISMA (PRozesse Im Schadstoffkreislauf Meer-Atmosphäre) data demonstrates the applicability of both data sets for forcing hydrodynamic models. PRISMA data are available on a regular grid and are based on field measurements. Compared with station data from Heligoland (German Bight of the North Sea), PRISMA data tend to underestimate long-term mean wind speeds while over-estimating the frequency and number of high wind speed events. Furthermore, time series of wind measurements were statistically analyzed and checked for quality. By evaluating the statistics of the wind field over the German Bight it was possible to classify meteorological conditions for the purpose of morphodynamic modelling. The results of simulations with a high-resolution version of the LM were used to identify areas where the station data may be confidently used to represent the wind field.

AB - The topic of this study was to identify meteorological data suitable for forcing numerical simulations of morphodynamic processes in the Dithmarschen Bight. A comparison between Numerical Weather Prediction (NWP) output data from the Local Model (LM) of the German Weather Service (Deutscher Wetterdienst - DWD) and PRISMA (PRozesse Im Schadstoffkreislauf Meer-Atmosphäre) data demonstrates the applicability of both data sets for forcing hydrodynamic models. PRISMA data are available on a regular grid and are based on field measurements. Compared with station data from Heligoland (German Bight of the North Sea), PRISMA data tend to underestimate long-term mean wind speeds while over-estimating the frequency and number of high wind speed events. Furthermore, time series of wind measurements were statistically analyzed and checked for quality. By evaluating the statistics of the wind field over the German Bight it was possible to classify meteorological conditions for the purpose of morphodynamic modelling. The results of simulations with a high-resolution version of the LM were used to identify areas where the station data may be confidently used to represent the wind field.

KW - Dithmarschen Bight

KW - LM

KW - PRISMA

KW - Wind measurements

UR - http://www.scopus.com/inward/record.url?scp=33747876096&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:33747876096

VL - 69

SP - 128

EP - 140

JO - Kuste

JF - Kuste

SN - 0452-7739

ER -