Zdr Bias: Periods of Vertical Pointing

S-Pol IMPROVE-II, Oregon Cascades, December 2001

Aperiodically, the S-Pol radar is pointed vertically for purposes of data quality control. Vertical pointing allows estimation of any bias in Zdr, and provides insight to the correctness of other radar parameters.

The following is a tabulation of all periods of vertical pointing for S-pol in IMPROVE-II:

11-NOV-2001 23:50:55-23:55:34 
13-NOV-2001 18:23:18-18:39:27 
13-NOV-2001 21:48:28-22:02:53
13-NOV-2001 22:10:46-22:18:24
15-NOV-2001 23:42:56-23:47:05 
16-NOV-2001 18:19:33-18:25:51 
17-NOV-2001 00:04:57-00:07:19 
27-NOV-2001 22:49:00-22:59:51
28-NOV-2001 00:23:03-00:29:42 
30-NOV-2001 20:58:32-21:05:12 
30-NOV-2001 22:02:12-22:08:23
03-DEC-2001 16:56:13-16:58:03 (partial volume)
04-DEC-2001 18:06:41-18:13:05 
11-DEC-2001 17:46:46-17:55:00 
12-DEC-2001 17:55:49-18:02:03
12-DEC-2001 21:05:41-21:11:57
13-DEC-2001 20:37:42-20:43:24 
17-DEC-2001 01:12:09-01:18:25
19-DEC-2001 22:58:41-23:04:48 
22-DEC-2001 15:25:29-15:31:06