Radar extreme networks manual#

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Radar extreme networks manual#

Before making a single edit, Tropedia EXPECTS our site policy and manual of style to be followed.Detailed descriptions of the radar products ( DX, PX, PX_250, PF, LMAX, PL, PE, PZ, PR, single sweep data sets of reflectivity and radial wind velocity) and composite products ( RX, WX, WN, PG, PP) resulting from the precipitation and volume scans can be chosen from the product menu on the right.Ī combination product consisting of a radar composite and a forecast for 2 hours (displacement calculation) is also offered ( WN).

Additionally, so-called run-length encoded products are generated at the radar site. With only a few exceptions, the radar products are made available in the BUFR format. The radar data are used to produce various local radar products as well as Germany-wide radar composite products. At the end of the quality assurance chain, so-called quality products are available for each individual set of radar reflectivity and radial wind velocity data. These procedures use the data provided by the radars' dual polarisation measurements and are based on special signal and image processing techniques as well as statistical methods. In order to support the processing of weather radar data, the DWD has developed a number of automatic quality assurance procedures. The data resulting from this scan strategy are processed into different kinds of radar products directly at the radar's site as well as at the headquarters of the DWD. The scanning cycle ends with a vertical 90°-angled scan into the sky for calibration. This is followed by another four antenna rotations at the fixed elevation angles of 8.0°, 12.0°, 17.0° and 25.0° (with the horizontal range decreasing from 160 km to 120 km as the angles increase). The precipitation scan is followed by the 'volume scan' which starts with six consecutive antenna rotations at fixed elevation angles (5.5°, 4.5°, 3.5°, 2.5°, 1.5° and 0.5°) the horizontal range is 180 km.

a near-surface scan during which the antenna follows the orography (horizontal range: 150 km). The scanning cycle starts with the so-called precipitation scan, i.e. The scan strategy for the DWD's radar network prescribes a scanning cycle which takes 5 minutes to refresh the information collected from all spatial segments. In the vertical, their coverage extends from near-surface to the upper troposphere above 10 km. The horizontal range of these monitoring systems is up to 180 km. The radar systems of the DWD provide precipitation data (intensity and distribution) and radial wind velocities with high temporal and spatial resolution. The advantage of weather radars, compared to surface measurement stations, is that they provide three-dimensional information about precipitation over the whole coverage area. The network also includes an additional weather radar which is located at the Hohenpeissenberg Meteorological Observatory and serves the purposes of quality assurance and testing of new hardware and software. As part of its meteorological monitoring activities, the DWD operates a network of 17 operational weather radars that are equipped with the latest dual polarization Doppler technology.