The application software provides input data by, for example, converting the IRIS standard
cartesian MLHGT products to the curved Earth coordinates of the sweeps configured for the
radar task. Typically, a map for a collection of sweeps (a volume) is uploaded.
The application software adjusts the spatial resolution of the map by down scaling of gates
so that it fits in the buer managed in RDA:
DPOLAPP_MAX_ML_SWEEPS*DPOLAPP_MAX_ML_RAYS*DPO LAPP_MAX_ML_BINS
The command also checks the maximum number of sweeps and rays
(DPOLAPP_MAX_ML_SWEEPS = 30 and DPOLAPP_MAX_ML_RAYS=90). If the buer
does not exist or exceeds its limits, it is flushed.
RVP900 supports a command that provides a way to feedback the melting layer
information from IRIS to the RDA. The melting layer altitude information is specified for each
antenna angle and range. This way, the melting layer height can be used in dierent live data
processing applications such as HydroClass.
RVP900 maintains an internal array of up to 1024
dierent filter versus- range tables, each
of which is keyed to a particular angle (EL, for PPIs and AZ for RHIs). Each XOP_MLSPEC
command uploads the complete sweep. Then, for each live bin in every processed ray
processed, RVP900 obtains the melting layer at the midpoint AZ/EL of the ray.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---------------------------------------------------------------
| | | | | | | | | | | | | | | | |
| Scan Type (Unsigned 16-bit integer) | XARG 1
|----------------------------------------------------------------|
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---------------------------------------------------------------
| | | | | | | | | | | | | | | | |
| Number of sweeps (Unsigned 16-bit integer) | XARG 2
|----------------------------------------------------------------|
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---------------------------------------------------------------
| | | | | | | | | | | | | | | | |
| Number of rays (Unsigned 16-bit integer) | XARG 3
|----------------------------------------------------------------|
Chapter 8 – Host Computer Commands
325
To Next Page
Loading...