View source for Fractl parameter file

= FRACTL Parameter Descriptions =
<blockquote>
Fractl calculates U, V, and W wind components from 2 or more Doppler
</blockquote>
== DEBUGGIN ==

=== debug ===

<blockquote>Debug option.

If set, debug messages will be printed appropriately.

Type: enum
</blockquote>
Options:

* DEBUG_OFF
* DEBUG_NORM
* DEBUG_VERBOSE
* DEBUG_EXTRA

'''debug = DEBUG_OFF'''

=== detailSpec ===

<blockquote>detail spec used for debugging only. Example: &quot;5,20,30,0.1&quot;.

Type: string
</blockquote>
'''detailSpec = &quot;not_set&quot;'''

== MINIMUM VALUE ==

=== minDbz ===

<blockquote>Minimum dBZ value for valid data.

Any value below that will be tossed out. Example: -20.

Type: double
</blockquote>
'''minDbz = -20'''

=== minNcp ===

<blockquote>Minimum NCP value for valid data.

Any value below that will be tossed out. Example: 0.3.

Type: double
</blockquote>
'''minNcp = 0'''

== TEST MODE ==

=== testMode ===

<blockquote>Test mode.

<blockquote>; MODE_ALPHA:
: Use simple synthetic wind data. Skip the redar files. Must specify synWinds: W,V,U Obs are located at the verif cell centers.
; MODE_BETA:
: Use simple synthetic wind data. Read swp files and use swp obs locations, but replace radial vel with synthetic. Must specify synWinds: W,V,U radFiles beg,lim Use radar files i: beg &lt;= i &lt; lim. If beg == lim == 0, read all files
; MODE_ZETA:
: Operational: use specified radar data. Specify synWinds: 0,0,0 radFiles beg,lim Use radar files i: beg &lt;= i &lt; lim. If beg == lim == 0, read all files
; MODE_ZETA_BELTRAMI:
: Like zeta, but compare the results with the test Beltrami flow and print statistics. Specify synWinds: 0,0,0 This is only useful for swp files generated by Michael Bell's Beltrami flow simulation.
; MODE_GAMMA:
: Like zeta, but compare the results with the constant flow and print statistics. Specify synWinds: 0,0,0.
</blockquote>
Type: enum
</blockquote>
Options:

* MODE_NONE
* MODE_ALPHA
* MODE_BETA
* MODE_ZETA
* MODE_ZETA_BELTRAMI
* MODE_GAMMA

'''testMode = MODE_ZETA'''

=== radFiles ===

<blockquote>Use radar files i: start &lt;= i &lt; limit. Read all files if start == limit == 0.

Type: string
</blockquote>
'''radFiles = &quot;0,0&quot;'''

== SYN WIND ==

=== synWinds ===

<blockquote>Specify a comma sep triplet: W,V,U If a wind spec is numeric, use that constant uniform value. Else the wind spec is the name for one of [[SYNFUNC]]* values: &quot;sinx&quot;: wind component = sin(locx) &quot;siny&quot;: wind component = sin(locy) &quot;sinz&quot;: wind component = sin(locz) Example: -synWinds 3,sinx,sinx Means uniform Z wind at 3 m/s. Both V and U winds = sin(locx), so the wind would be from the SW to the NW, varying as sin(locx).
</blockquote>
<blockquote>Type: string
</blockquote>
'''synWinds = &quot;0,0,0&quot;'''

== GRID SPEC ==

=== zGrid ===

<blockquote>; &quot;min,max,incr&quot;
: To get min and max from the data, specify only the increment.

Type: string
</blockquote>
'''zGrid = &quot;0.0,16.0,0.5&quot;'''

=== yGrid ===

<blockquote>&quot;min,max,incr&quot; or &quot;incr&quot;.

Type: string
</blockquote>
'''yGrid = &quot;-150.0,250.0,1&quot;'''

=== xGrid ===

<blockquote>&quot;min,max,incr&quot; or &quot;incr&quot;.

Type: string
</blockquote>
'''xGrid = &quot;-200.0,100.0,1&quot;'''

== GRID_TYPE ==

=== gridType ===

<blockquote>Mesh for stand-alone. Mish for Samurai input.

Type: enum
</blockquote>
Options:

* GRID_MESH
* GRID_MISH

'''gridType = GRID_MESH'''

== PROJECTION ==

=== projName ===

<blockquote>Must be transverseMercador.

Type: string
</blockquote>
'''projName = &quot;transverseMercator&quot;'''

== projLat0 ==

<blockquote>For example: 16.5.

Type: double
</blockquote>
'''projLat0 = 34.675063013242'''

=== projLon0 ===

<blockquote>For example: 148.0.

Type: double
</blockquote>
'''projLon0 = -99.8960354021649'''

=== radarAlt ===

<blockquote>only needed for pre gridded mode.

Type: double
</blockquote>
'''radarAlt = -1'''

== MISC ==

=== baseW ===

<blockquote>Type: double
</blockquote>
'''baseW = 0'''

=== epsilon ===

<blockquote>Type: double
</blockquote>
'''epsilon = 1e-06'''

== LIMITS ==

=== maxDeltaAltKm ===

<blockquote>in km. Default 0.

Type: double
</blockquote>
'''maxDeltaAltKm = 0'''

=== maxAbsElevDeg ===

<blockquote>in degree.

Type: double
</blockquote>
'''maxAbsElevDeg = 0'''

=== minRadialDistKm ===

<blockquote>in km.

Type: double
</blockquote>
'''minRadialDistKm = 0'''

=== numNbrMax ===

<blockquote>Type: int
</blockquote>
'''numNbrMax = 100'''

=== maxDistBase ===

<blockquote>max point distance = base + factor * aircraftDist.

Type: double
</blockquote>
'''maxDistBase = 1'''

=== maxDistFactor ===

<blockquote>max point distance = base + factor * aircraftDist.

Type: double
</blockquote>
'''maxDistFactor = 0.016666'''

== FLAG ==

=== forceOk ===

<blockquote>y/n.

Type: string
</blockquote>
'''forceOk = &quot;n&quot;'''

=== useEigen ===

<blockquote>y: use Eigen, n: use Cramer.

Type: string
</blockquote>
'''useEigen = &quot;y&quot;'''

=== preGridded ===

<blockquote>(NOT WORKING YET) Data is pre-gridded.

Type: string
</blockquote>
'''preGridded = &quot;n&quot;'''

== FILES AND DIRECTORIES ==

=== inDir ===

<blockquote>Any radx supported format, or output of Radx2Grid.

Type: string
</blockquote>
'''input_dir = &quot;.&quot;;'''

=== fileRegex ===

<blockquote>for example '^swp'.

Type: string
</blockquote>
'''fileRegex = &quot;^cfrad&quot;'''

=== fileList ===

<blockquote>One entry per line fileName altKmMsl latDeg lonDeg # in the first column is a comment.

Type: string
</blockquote>
'''fileList = &quot;not_set&quot;'''

=== outTxt ===

<blockquote>Has verification of grid results.

Type: string
</blockquote>
'''outTxt = &quot;out.txt&quot;'''

=== outNc ===

<blockquote>; If outNc ends in a slash we make a subdir and write to
: yyyymmdd/ncf_yyyymmdd_hhmmss.nc.

Type: string
</blockquote>
'''outNc = &quot;output.nc&quot;'''

== FIELDS ==

=== radialName ===

<blockquote>VEL for NEXRAD, VG for Eldora, VE for CSU-CHILL.

Type: string
</blockquote>
'''radialName = &quot;VEL&quot;'''

=== dbzName ===

<blockquote>REF for NEXRAD, DBZ for Eldora, DZ for CSU-CHILL.

Type: string
</blockquote>
'''dbzName = &quot;REF&quot;'''

=== ncpName ===

<blockquote>Not available for NEXRAD, NCP for Eldora, NC for CSU-CHILL.

Type: string
</blockquote>
'''ncpName = &quot;NCP&quot;'''

== FILTERS ==

=== uvFilter ===

<blockquote>Type: enum
</blockquote>
Options:

* FILTER_NONE
* FILTER_LEISE

'''uvFilter = FILTER_NONE'''

=== wFilter ===

<blockquote>Type: enum
</blockquote>
Options:

* FILTER_NONE
* FILTER_LEISE

'''wFilter = FILTER_NONE'''

=== uvSteps ===

<blockquote>; Applies to all dimensions. Use uvMultiSteps for dimension specific
: steps.

Type: int
</blockquote>
'''uvSteps = 1'''

=== uvMultiStep ===

<blockquote>Comma separated steps. Example: &quot;1,2,1&quot;.

Type: string
</blockquote>
'''uvMultiStep = &quot;not_set&quot;'''

=== wSteps ===

<blockquote>; Applies to all dimensions. Use wMultiStep for dimension specific
: steps.

Type: int
</blockquote>
'''wSteps = 1'''

=== wMultiStep ===

<blockquote>Comma separated steps. Example: &quot;1,2,1&quot;.

Type: string
</blockquote>
'''wMultiStep = &quot;not_set&quot;'''

== INTERPOLATION ==

=== uvInterp ===

<blockquote>Applied before calculating W.

Type: enum
</blockquote>
Options:

* INTERP_NONE
* INTERP_LEISE
* INTERP_RADAR_WIND

'''uvInterp = INTERP_NONE'''