Real time product demonstration

for wind products

The wind products of the nwcsaf/pps are generated operationally in real time on data from the direct readout station in Norrköping.
The high resolution wind product (HRW) shown here is still an demonstrational product, and is a part of PPS version 2021.

Please note that the actual wind products are found in the HRW netCDF/BUFR-datafiles.
But as an appetizer, here is shown a plot of the atmospheric motion vectors with different colours at different heights (in hPa), or coloured according to the wind speed. Both types of images also show the windspeed using barbs:

• half a barb is 5 knots
• one barb is 10 knots
• a triangle is 50 knots

To the dr schedule of polar satellites being received in real time at the X/L-band station in Norrköping.

More about the product demonstration

The pps software is being run in operational mode at smhi on direct readout data from the X/L-band station in Norrköping. In addition to the local data also data from the ears-avhrr service received via EUMETCast are being used as well as, occasionally, direct readout data from neighbouring stations in Finland and Norway.
The HRW product requires two different satellite passages of the same area in order to create a product. Thus, if the passages are sparse, there might be a some HRW products missing because they could not pair up.
The wind products are produced in two map-projected regions, mainly covering the area of interest of Sweden and the nordic countries. Please note that the wind products are using other areas than the cloud products.

NWP-data

The numerical model used in the reference system is ECMWF, retrieved with a spatial resolution of 0.25° and a temporal step of 3 hours, with base times of 00Z and 12Z. NWP fields at the surface level, at 10 metre, and at 54 hybrid levels are used for HRW.

Description of the default areas

The wind products are being processed on two regional areas. The locations of the areas are illustrated below, displaying the 1km usgs landuse data used.
Arome - 3km is a nordic area used by MetCoOp with a resolution of 3 km per pixel. It is in Lambert conformal conic projection.
Scandinavia - 1km is a northern European area, with a resolution of 1km per pixel. It is in Polar stereographic projection.