Doppler Weather Radar - METNET - India Meteorological Department
Doppler Weather Radar - METNET - India Meteorological Department
Doppler Weather Radar - METNET - India Meteorological Department
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The System is capable of generating the following products from the initial raw data output of<br />
the radar processor.<br />
B.3.1. Base Products<br />
B.3.1.1. The system is capable of generating PPI, RHI of base data obtained from the radar<br />
processed after applying different corrections to the data (e.g. beam blockage, incomplete beam<br />
filling, attenuation effects, earth curvature, range normalized etc.)<br />
B.3.1.2. Products are generated online based on PDF parameters of the products already selected<br />
and stored in workstation against the various scan schedule programmed.<br />
B.3.1.3. Provision is also there to generate products offline using the archived raw data.<br />
B.3.2. Primary Products<br />
B.3.2.1. Maximum Display<br />
The System computes maximum values of base data elements (Z, V, σ) in horizontal (East west)<br />
and vertical columns (North South) between user defined heights and displays the partial images<br />
in a single frame.<br />
B.3.2.2. CAPPI (Constant Altitude Plan Position Indicator)<br />
The System is interpolate each primary data from the volume scan data set for a horizontal plane<br />
at user vertical height and display same for user selectable data form Z, V and σ.<br />
B.3.2.3. PCAPPI (PSEUDO CAPPI)<br />
The system is incorporating data form the highest elevation scan near the radar and from lowest<br />
elevation scan for areas at far away from the radar for which radar beams are not intersected by<br />
user defined plane for CAPPI and display same pertaining to data selected by user.<br />
B.3.2.4. VCUT (Vertical Cut)<br />
The system is interpolating all the basic parameters (Z, V, σ) in any vertical plane passing<br />
through user defined two points and display the same for the user selectable parameters.<br />
B.3.2.5. EBASE (ECHO BASE)<br />
From the volume scan data, the system is identifying the minimum height up to which the user<br />
defined threshold value for each base data exists and displays them for user selectable data.<br />
B.3.2.6. ETOP (ECHO TOP)<br />
From the volume scan data, the system shall identify the maximum height up to which the user<br />
defined threshold value for each base data exists and display them for user selectable data.<br />
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