Site log - Kwaj (November 1999)

Flags:

1-Satellite coincidence data
2-Scan in TSDIS data
A-Major problem (moderate to strong AP > 25 dBZ &/or widespread coverage > 10%)
B-Minor problem (weak AP &/or very little coverage)

*******************************************************************************
VR mask (V1) and cluttermap applied to all November  1999 data
ZCAL adjustment +5.0 dBZ applied to all November 1999 data
*******************************************************************************
01 Nov 99:    Widespread convection and rain are present throughout the
	      entire day.  Several convective clusters and lines move over
	      the radar location.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  0758Z(251 km), 1743Z(85 km)
	      
	      Overpass: 1743Z(85 km):  Widespread rain and convection are
	      	present mainly in the southern and western regions.
	      	
              QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
******************************************************************************
02 Nov 99:    Widespread rain and convection throughout the entire day.
	      Many large convective clusters pass through the scope.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  0645Z(411 km), 1630Z(725 km)
	      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
******************************************************************************
03 Nov 99:    Numerous showers and convective lines mainly in the southern
	      half of the scope after 13Z.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  0709Z(438 km), 1654Z(105 km)
	      
	      Overpass: 1654Z(105 km): Scattered showers and convection in
	      	the southern half of the scope.
	      	
	      QC notes:  QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
******************************************************************************
04 Nov 99:    Numerous showers and thin convective lines are present throughout
	      the day.  A large convective event occurs in the southern fringes
	      of the scope after 17Z.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  0557Z(215 km), 1541Z(541 km)
	      
	      QC notes:  QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
******************************************************************************
05 Nov 99:    Widespread rain and convection is present throughout most of
	      the day.
	      
	      Data Analyzed:   0003-2353Z
	      
	      Satellite Coincidence:  0621Z(627 km), 1605Z(306 km)
	      
	      QC notes:  QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
******************************************************************************
06 Nov 99:    Numerous to widespread rain and convection are present throughout
	      the entire day.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  0508Z(17 km), 1453Z(353Z)
	      
	      Overpass: 0508Z(17 km):  Convective line and cluster present
	      	to NW of radar at this overpass time.
	      	
	      QC notes:  QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
******************************************************************************
07 Nov 99:  Widspread rain with some convective elements are present mainly
	    in the northern half of the scope from 00-08Z.  Only scattered
	    activity is present for the remainder of the day.
	    
	    Data Analyzed:  0003-2353Z
	    
	    Satellite Overpass:  0356Z(692 km), 1516Z(499 km)
	    
	    QC notes:  QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
 2A	    !!FLAG!!     Major clutter pattern from Atoll 1043-1353Z
              	         UF files moved to "bad_files" directory
              	         No point in attempting additional QC
              	         
******************************************************************************
08 Nov 99:    Mainly scattered showers and convection throughout a good portion
	      of the day.  Increased activity in the southern half of the scope
	      from 08-14Z.  Only isolated showers and small cells from 15-23Z.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  0419Z(172 km), 1404Z(163 km)
	      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
******************************************************************************
09 Nov 99:    Scattered showers and convection are present throughout the
	      entire day.  No large scale systems.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  	03:07:42.273    490.639km
	      			        14:28:39.100    703.249km
	      			        
	      QC notes:  QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
              	         Odd radial spike pattern occurs at the following times:
              	         0243Z; - corrected
              	         
 2A           !!FLAG!!   0433Z;0813Z;0903Z;1533Z;1953Z;2323Z
 		         All moved to bad_files directory
****************************************************************************** 
10 Nov 99:    Scattered showers and convection are present throughout the day.
	      After 09Z, precip increases in coverage and intensity and 
	      continues through the 23Z hour.

	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence: 03:31:30.550    364.727km
	      			     13:16:06.166     29.041
	      			     
	      Overpass: 1316Z(29 km):   Convection present in the southern half
	      	of the scope.
	      	
	      QC notes:  QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
1A,2A	      !!FLAG!!   0343Z;0503Z;0843Z;1043Z;1113Z;1303Z;1413Z;1554Z;
	                 Radial clutter pattern to NW - these files cannot
	                 be corrected without removing precip
	                 All affected files moved to bad_files directory.
******************************************************************************  
11 Nov 99:    Mainly scattered showers and small convective cells dominate.
	      However, after 19Z, activity increases in coverage and intensity
	      in the southern half of the scope.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  02:19:04.746    293.281km
	      			      12:03:47.800    614.593km
	      			      
	      QC notes:  QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
2A            !!FLAG!!   0453Z;0653Z;1613Z;1903Z;2053Z;2133Z;2203Z
		         Radial clutter pattern to NW - these files cannot
	                 be corrected without removing precip
	                 All affected files moved to bad_files directory.
****************************************************************************** 
12 Nov 99:    Scattered convection is present through most of the day.

	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  02:43:04.630    554.148km
	      			      12:27:42.650    227.679km
	      			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
1A,2A	      !!FLAG!!   0253Z;0413Z;
			 Radial clutter pattern to NW - these files cannot
	                 be corrected without removing precip
	                 All affected files moved to bad_files directory.
*****************************************************************************
13 Nov 99:    Scattered showers and small convective cells from 00-14Z.
	      Only isolated showers through the 23Z hour.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  01:30:31.473     96.364km
	      			      11:15:05.316    430.161km
	      			      
	      Overpass: 0130Z(96 km):  Small patch of very light echo.
	      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
14 Nov 99:    Occassional scattered to isolated showers and small convective
	      cells are present throughout the entire day.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  01:54:21.603    735.794km
	      			      11:39:03.070    424.164km
	      			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
15 Nov 99:    Mainly isolated showers and small convective cells until after 15Z
	      when echo increases in coverage and intensity in the southern
	      half of the scope.
	      
	      Data Anlayzed:  0003-2353Z
	      
	      Satellite Coincidence:  00:41:59.386     98.585km
	      			      10:26:39.736    238.479km
	      			      23:29:29.636    570.685km
	      			      
	      Overpass: 0041Z(98 km): No echo
	      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
16 Nov 99:    Scattered to occassionally widespread showers and convection
	      throughout the day.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  10:50:19.926    621.337km
	      			      23:53:16.140    288.203km
	      			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
17 Nov 99:    Scattered/isolated showers and small convective cells are present
	      throughout most of the day.
	      
	      Data Anlayzed:  0003-1953Z
	                      2113-2353Z
	      
	      Satellite Coincidence:  09:38:02.983     46.514km
	      			      22:41:01.176    370.213km
	      			      
	      Overpass: 0938Z(46km): scattered showers
	      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
18 Nov 99:    Scattered showers and convection initially.
 	      A large convective event occurs in the 2nd half of the day.
 	      
 	      Data Analyzed:  0003-2353Z
 	      
 	      Satellite Coincidence:  08:25:39.896    686.936km
 	      			      23:04:51.556    479.279km
 	      			      
 	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
19 Nov 99:    Widespread rain with embedded convection from 00-05Z.  Activity
	      diminishes and pushes out of range during the 04Z hour.  Only
	      isolated small showers through the 23Z hour.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  08:49:26.430    147.991km
	      			      21:52:18.706    174.845km
	      			      
	      Overpass: 0849Z(147 km): No echo
	      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
20 Nov 99:    Scattered showers and small convective cells persist
	      throughout the entire day.  No organized systems.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  07:37:05.116    502.200km
	       			      22:16:24.676    666.424km
	       			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
21 Nov 99:    Scattered showers and small convective cells persist throughout
	      the entire day.  No organized systems.
	      Increase in convection in the extreme southern region during the
	      23Z hour.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  08:01:03.553    348.113km
	      			      21:03:54.723     22.994km
	      			      
	      Overpass: 2103Z(22km):  Small showers and cells in the extreme
	      	southern region.
	      	
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
22 Nov 99:    Scattered showers and convection throughout the entire day.
	      Activity increases in coverage and intensity after 12Z.
	      Several bands of showers witb convection race quickly across
	      the scope.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  06:48:30.636    313.754km
	      			      19:51:19.876    649.914km
	      			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
23 Nov 99:    Numerous showers and convective cells cover the scope periodically
	      throughout the entire day.
	      
	      Data Analyzed:  0003-2123Z
	      		      2243-2353Z
	      		      
	      Satellite Coincidence:  07:12:24.090    545.698km
	      			      20:15:22.923    216.523km
	      			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
*****************************************************************************
24 Nov 99:    Scattered showers and small convective cells are present
	      throughout the entire day.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  06:00:04.010    120.443km
	      			      19:02:53.866    448.222km
	      			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
              	         Significant clutter speck re-processing noted in
              	         QC param file
              	         
*****************************************************************************
25 Nov 99:    Scattered showers and convection mainly in the southern half
	      of the scope.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  06:23:44.513    744.467km
	      			      19:26:33.110    402.730km
	      			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
              	         Significant clutter speck re-processing noted in
              	         QC param file - entire day reprocessed
              	         
*****************************************************************************
26 Nov 99:    Widepsread showers and convection in the southern half of the
	      scope from 00-10Z.  A line of convection pushes to the North over
	      the radar during the 10Z hour.  Scattered convection continues
	      mainly in the southern half through the remainder of the day.
	      
	      Data Analyzed:  0003-2354Z
	      
	      Satellite Coincidence:  05:11:19.766     71.392km
	      			      18:14:19.740    250.113km
	      			      
	      Overpass:  0511Z(71km):  showers and small convective cells present
	      	in the southern half of the scope.
	      	
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
              	         Significant clutter speck re-processing noted in
              	         QC param file (0003-0553Z reprocessed)
              	         
*****************************************************************************
27 Nov 99:    Isolated to somewhat scattered showers and small convective
	      cells are present throughout the entire day.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  03:59:01.290    574.438km
	      			      18:38:15.870    593.632km
	      			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
*****************************************************************************
28 Nov 99:    Isolated showers and small convective cells are present
	      much of the day.
	      
	      Data Anlayzed:  0003-2353Z
	      
	      Satellite Coincidence:  04:22:52.403    269.327km
	      			      17:25:40.176     55.301km
	      			      
	      Overpass: 1725Z(55 km):  Isolated small showers
	      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
              	         Radial spike interference at 2023Z.
*****************************************************************************
29 Nov 99:    Scattered showers and small convective cells throughout most
	      of the day.
	      
	      Data Analyzed:  0003-2353Z
	      
	      Satellite Coincidence:  03:10:27.126    387.464km
	      			      16:13:27.630    724.902km
	      			      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
*****************************************************************************
30 Nov 99:    Isolated showers and small cells continue through the day.
	      Precip increases in coverage and intensity after 17Z.
	      
	      Data Analyzed:  0004-2353Z
	      
	      Satellite Coincidence:  03:34:26.290    469.714km
	      			      16:37:19.730    142.000km
	      			      
	      Overpass: 1637Z(142 km):  No significant echo
	      
	      QC notes:  ZCAL adjustment +5.0 dBZ
              	         VR mask applied to remove second trip echo.
              	         Clutter map applied.
              	         Minor clutter specks ignored.
              	         
*****************************************************************************