<month> = January, February, March, April, May, June, July, August, September,
October, November, December.
This table was created from the wind-<monthno> file as prepared by INSROP
project I.5.8. The table records refer to the routes_c shapefile set, which
includes points defining the ship routes as defined in INSROP Working paper no. 108
(1998), prepared by Work Package 1 (Box B) as part of INSROP Phase 2.
Wind regime
Existing wind regime information is not enough for a statistical description
of wind speed and direction for the open sea. Because of this lack of data,
Project I.5.8 have used a geostrophic wind model with a space resolution of 50 km
to simulate the wind regime over the Arctic Ocean (see Proshutinsky and Johnson
[1997] for details). Simulations of wind were started from January 1, 1946,
and run for 52 years, through December 31, 1997, using the daily surface
atmospheric pressure (from National Center for Atmospheric Research (NCAR). The results
of these calculations were used for statistical estimation of probability of
wind direction and wind speed for every point of the grid. This information is
presented in one file for every month. Results of simulated wind statistics were
compared with observed data at the stations along the NSR, and a good
agreement between observed and simulated data was demonstrated.
Path: <NSR_DATA>\meteorol\i_5_8
Table type: dBASE table.
* Probability of wind speed and direction - <month>
2680 records, 15 descriptive fields.
Fields: [<Name>] -- <Alias> (type of field)
[No] -- "No" (Numeric, no decimals)
Point number
[Point] -- "Point" (String, max. 5 characters)
Point identifier
[Dir] -- "Wind direction" (String, max. 7 characters)
Wind direction range
[N] -- "Probability of the wind direction" (Numeric, 1 decimal)
Probability of the wind direction (%)
[Max] -- "Max. simulated wind speed (m/s)" (Numeric, 1 decimal)
[Mean] -- "Mean wind speed (m/s)" (Numeric, 1 decimal)
[Ws_0_5] -- "0-5 m/s" (Numeric, 1 decimal)
[Ws_5_10] -- "5-10 m/s" (Numeric, 1 decimal)
[Ws_10_15] -- "10-15 m/s" (Numeric, 1 decimal)
[Ws_15_20] -- "15-20 m/s" (Numeric, 1 decimal)
[Ws_20_25] -- "20-25 m/s" (Numeric, 1 decimal)
[Ws_25_30] -- "25-30 m/s" (Numeric, 1 decimal)
[Ws_30_35] -- "30-35 m/s" (Numeric, 1 decimal)
[Ws_35_40] -- "35-40 m/s" (Numeric, 1 decimal)
[Ws_40_45] -- "40-45 m/s" (Numeric, 1 decimal)
Probability of wind speed and direction - <month>