RadxKdp - Revision history

Jcdehart: /* Running RadxKdp */

2024-04-19T20:27:53Z

Running RadxKdp

Jcdehart at 23:54, 23 February 2021

2021-02-23T23:54:38Z

Jcdehart at 23:47, 23 February 2021

2021-02-23T23:47:08Z

Jcdehart at 22:36, 23 February 2021

2021-02-23T22:36:21Z

Jcdehart: /* Important parameters */

2021-02-23T22:22:42Z

Important parameters

Jcdehart: /* Overview */

2021-02-23T21:07:19Z

Overview

Jcdehart: /* Overview */

2021-02-23T21:06:57Z

Overview

Jcdehart at 21:06, 23 February 2021

2021-02-23T21:06:43Z

Jcdehart at 21:05, 23 February 2021

2021-02-23T21:05:05Z

Jcdehart: /* Overview */

2021-02-23T21:04:26Z

Overview

@@ Line 93: / Line 93: @@
 <code lang="bash">/path/to/lrose/install/bin/RadxKdp -h</code>
-Once your parameter file is complete, use a command similar to the following to run the application:
+Once your parameter file is complete, use a command similar to the following to run the application. ''Note: this command will '''''not''''' work for the FILELIST mode.''
 <code lang="bash">/path/to/lrose/install/bin/RadxKdp -params param_file_name</code>
-The user can also specify the location of cfradial files in the following manner:
+If using FILELIST mode, the user needs to specify the location of cfradial files using the <code lang="bash">-f</code> flag:
 <code lang="bash">/path/to/lrose/install/bin/RadxKdp -f /path/to/cfradial/files/ -params param_file_name</code>

← Older revision		Revision as of 23:54, 23 February 2021
Line 85:		Line 85:

	* KDP_psob_method: Method to handle PSOB		* KDP_psob_method: Method to handle PSOB
		+

	=== '''Running RadxKdp''' ===		=== '''Running RadxKdp''' ===

@@ Line 1: / Line 1: @@
 RadxKdp ingests polarimetric radar data and calculates <math>K_{DP}</math> from <math>\phi_{DP}</math>.
 === '''Prerequesites''' ===
@@ Line 8: / Line 19: @@
 * Two parameter files to run RadxKdp and to calculate <math>K_{DP}</math>.
 === '''Parameter files''' ===

@@ Line 61: / Line 61: @@
 * output_dir: files will be written to this directory
-==== '''2) <math>K_{DP}</math>-specific parameter file''' ====
+==== '''2) KDP-specific parameter file''' ====
 ===== '''Ensure file is up to date''' =====

← Older revision		Revision as of 22:22, 23 February 2021
Line 48:		Line 48:

	* KDP_params_file_path: path to the <math>K_{DP}</math>-specific parameter file		* KDP_params_file_path: path to the <math>K_{DP}</math>-specific parameter file
		+
		+	Output fields
		+
		+	* output_fields: specify the fields to be written to the output file (including attenuation-corrected fields)

	Output format		Output format

← Older revision		Revision as of 21:07, 23 February 2021
Line 10:		Line 10:
	=== '''Overview''' ===		=== '''Overview''' ===

−	RadxKdp uses a couple different methods to calculate <math>K_{DP}</math> from <math>\phi_{DP}</math>. In general, <math>K_{DP}</math> is calculated from the <math>\phi_{DP}</math> slope between range gates (after smoothing and unfolding the <math>\phi_{DP}</math> data). Filtering smears out <math>K_{DP}</math> in range, so an additional field (KDP_SC) is constrained by <math>K_{DP}</math> estimated theoretically from Z and ~~ZDR~~.	+	RadxKdp uses a couple different methods to calculate <math>K_{DP}</math> from <math>\phi_{DP}</math>. In general, <math>K_{DP}</math> is calculated from the <math>\phi_{DP}</math> slope between range gates (after smoothing and unfolding the <math>\phi_{DP}</math> data). Filtering smears out <math>K_{DP}</math> in range, so an additional field (KDP_SC) is constrained by <math>K_{DP}</math> estimated theoretically from <math>Z_H</math> and <math>Z_{DR}</math>.

← Older revision		Revision as of 21:06, 23 February 2021
Line 10:		Line 10:
	=== '''Overview''' ===		=== '''Overview''' ===

−	RadxKdp uses a couple different methods to calculate <math>K_{DP}</math> from ~~PHIDP~~. In general, <math>K_{DP}</math> is calculated from the ~~PHIDP~~ slope between range gates (after smoothing and unfolding the ~~PHIDP~~ data). Filtering smears out <math>K_{DP}</math> in range, so an additional field (KDP_SC) is constrained by <math>K_{DP}</math> estimated theoretically from Z and ZDR.	+	RadxKdp uses a couple different methods to calculate <math>K_{DP}</math> from <math>\phi_{DP}</math>. In general, <math>K_{DP}</math> is calculated from the <math>\phi_{DP}</math> slope between range gates (after smoothing and unfolding the <math>\phi_{DP}</math> data). Filtering smears out <math>K_{DP}</math> in range, so an additional field (KDP_SC) is constrained by <math>K_{DP}</math> estimated theoretically from Z and ZDR.

@@ Line 1: / Line 1: @@
-RadxKdp ingests polarimetric radar data and calculates <math>K_{DP}</math> from PHIDP.
+RadxKdp ingests polarimetric radar data and calculates <math>K_{DP}</math> from <math>\phi_{DP}</math>.
 === '''Prerequesites''' ===
@@ Line 6: / Line 6: @@
 * Polarimetric radar data (any Radx supported format, e.g., cfradial)
-* Two parameter files to run RadxKdp and to calculate KDP.
+* Two parameter files to run RadxKdp and to calculate <math>K_{DP}</math>.
 === '''Overview''' ===
@@ Line 13: / Line 13: @@
-''A more detailed explanation of the procedure used to estimate KDP can be found [http://wiki.lrose.net/index.php/KDP_estimation here].''
+''A more detailed explanation of the procedure used to estimate <math>K_{DP}</math> can be found [http://wiki.lrose.net/index.php/KDP_estimation here].''
 ''Information about how attenuation is estimated from <math>K_{DP}</math> can be found [http://wiki.lrose.net/index.php/Estimated_Attenuation here].''
@@ Line 42: / Line 42: @@
 Input field information
-* SNR_available: determines if SNR data is in the file or needs to be calculated from DBZ
+* SNR_available: determines if SNR data is in the file or needs to be calculated from <math>Z_H</math>
 * VARIABLE_field_name: tells RadxKdp the polarimetric variable names in the ingested cfradial files
 Computing KDP
-* KDP_params_file_path: path to the KDP-specific parameter file
+* KDP_params_file_path: path to the <math>K_{DP}</math>-specific parameter file
 Output format
@@ Line 57: / Line 57: @@
 * output_dir: files will be written to this directory
-==== '''2) KDP-specific parameter file''' ====
+==== '''2) <math>K_{DP}</math>-specific parameter file''' ====
 ===== '''Ensure file is up to date''' =====
@@ Line 73: / Line 73: @@
 Unfolding and filtering
-* KDP_fir_filter_len: Filter length applied to PHIDP
+* KDP_fir_filter_len: Filter length applied to <math>\phi_{DP}</math>
 Handling phase shift on backscatter (PSOB)

@@ Line 1: / Line 1: @@
-RadxKdp ingests polarimetric radar data and calculates KDP from PHIDP.
+RadxKdp ingests polarimetric radar data and calculates <math>K_{DP}</math> from PHIDP.
 === '''Prerequesites''' ===
@@ Line 10: / Line 10: @@
 === '''Overview''' ===
-RadxKdp uses a couple different methods to calculate KDP from PHIDP. In general, KDP is calculated from the PHIDP slope between range gates (after smoothing and unfolding the PHIDP data). Filtering smears out KDP in range, so an additional field (KDP_SC) is constrained by KDP estimated theoretically from Z and ZDR.
+RadxKdp uses a couple different methods to calculate <math>K_{DP}</math> from PHIDP. In general, <math>K_{DP}</math> is calculated from the PHIDP slope between range gates (after smoothing and unfolding the PHIDP data). Filtering smears out <math>K_{DP}</math> in range, so an additional field (KDP_SC) is constrained by <math>K_{DP}</math> estimated theoretically from Z and ZDR.
@@ Line 19: / Line 19: @@
 === '''Parameter files''' ===
-RadxKdp uses two separate parameter files. The first includes the basic parameters related to data location and field names, which is similar to the parameter files for the other Radx applications. The second includes the parameters that set the filtering length, method, and relevant coefficients necessary to calculate KDP and estimate attenuation.
+RadxKdp uses two separate parameter files. The first includes the basic parameters related to data location and field names, which is similar to the parameter files for the other Radx applications. The second includes the parameters that set the filtering length, method, and relevant coefficients necessary to calculate <math>K_{DP}</math> and estimate attenuation.
 ==== '''1) Main parameter file''' ====

← Older revision		Revision as of 21:04, 23 February 2021
Line 14:		Line 14:

	''A more detailed explanation of the procedure used to estimate KDP can be found [http://wiki.lrose.net/index.php/KDP_estimation here].''		''A more detailed explanation of the procedure used to estimate KDP can be found [http://wiki.lrose.net/index.php/KDP_estimation here].''
		+
		+	''Information about how attenuation is estimated from <math>K_{DP}</math> can be found [http://wiki.lrose.net/index.php/Estimated_Attenuation here].''

	=== '''Parameter files''' ===		=== '''Parameter files''' ===