[wxqc] FW: Weather data quality report for 2006-02-15 - CW0351
Sandy and David Helms
dshelms at comcast.net
Thu Feb 16 02:19:08 EST 2006
Hi All:
MADIS QCMS said I failed on 59 of 96 tries today as compared against the
analysis (see stats below). I typically fail no more than 1 out of 96
obervations submitted on most days (I have a standard sensor siting with a
passive Gill shield).
We had 17 inches of snow Sunday morning and were down to 10 inches by this
morning. Just 10 miles south, this area got about half as much snow which
mostly melted today in the 60F temps that moved in from the southwest
non-snowpack regions from central Virginia. It also turns out that most
stations in my QCMS analysis are to my south in the lower/no snow depth
areas. So while the stations in my analysis reflected the 60F temps, my
station remained in the snow covered area which observed temperatures 6-12F
lower than the analysis.
So will my temperatures were accurate for the "snow chilled" area nearby my
station, my data was QCMS flagged for most temperature reports today because
4 or 5 stations used in my analysis are south of my station in the "warm"
non-snow pack area which caused the analysis to be biased towards these
warmer stations to my south.
Question for Mike: Is there a function that would help the analysis not be
biased towards asymetric station distributions? Today was an extreme
example of how the analysis did not reflect the conditions near my station
due to asymetric distribution of stations in the analysis.
Dave
CW0351
Brookeville, Maryland
http://mywebpages.comcast.net/dshelms/wx.html
-----Original Message-----
From: Weather Quality [mailto:weather-qc at nospam.gladstonefamily.net]
Sent: Wednesday, February 15, 2006 9:04 PM
Subject: Weather data quality report for 2006-02-15
DATE UTC SITE * ALT * POT TEMP * DEW PNT * DD *
FF
* (MB) * (DEG F) * (DEG F) * (DEG) *
(KNT)
15-FEB-2006 0402 CW0351 *1021.(-0.9)* 30(6.72)* 28(-2.5)* 0(174.)*
0(1.47)
15-FEB-2006 0417 CW0351 *1021.( -1)* 30(6.72)* 28(-2.5)* 0(174.)*
0(1.47)
15-FEB-2006 0432 CW0351 *1021.(-0.9)* 30(6.72)* 28(-2.5)* 0(174.)*
0(1.47)
15-FEB-2006 0447 CW0351 *1022.(-1.1)* 30(6.72)* 28(-2.5)* 0(174.)*
0(1.47)
15-FEB-2006 0502 CW0351 *1021.(-0.9)* 29(7.79)*27.2(-1.6)* 0(-168.)*
0( 1.7)
15-FEB-2006 0517 CW0351 *1022.( -1)* 29(7.79)*27.2(-1.6)* 0(-168.)*
0( 1.7)
15-FEB-2006 0532 CW0351 *1022.(-1.2)* 29(7.79)*27.2(-1.6)* 0(-168.)*
0( 1.7)
15-FEB-2006 0547 CW0351 *1022.(-1.3)* 29(7.79)*27.2(-1.6)* 0(-168.)*
0( 1.7)
15-FEB-2006 0602 CW0351 *1022.(-1.3)* 29(8.25)*27.2(-1.7)* 0(-161.)*
0(1.31)
15-FEB-2006 0617 CW0351 *1022.(-1.3)* 29(8.25)*27.2(-1.7)* 0(-161.)*
0(1.31)
15-FEB-2006 0632 CW0351 *1022.(-1.3)* 29(8.25)*27.2(-1.7)* 0(-161.)*
0(1.31)
15-FEB-2006 0647 CW0351 *1022.(-1.3)* 28(9.25)*26.2(-0.7)* 0(-161.)*
0(1.31)
15-FEB-2006 0702 CW0351 *1022.(-1.2)* 28(7.92)*26.2(-0.8)* 0(-170.)*
0(1.54)
15-FEB-2006 0717 CW0351 *1022.(-1.1)* 28(7.92)*26.5( -1)* 0(-170.)*
0(1.54)
15-FEB-2006 0732 CW0351 *1022.(-1.2)* 28(7.92)*26.5( -1)* 0(-170.)*
0(1.54)
15-FEB-2006 0747 CW0351 *1022.(-1.2)* 28(7.92)*26.5( -1)* 0(-170.)*
0(1.54)
15-FEB-2006 0802 CW0351 *1022.(-1.2)* 28(7.34)*26.5( -1)* 0(-160.)*
0(1.48)
15-FEB-2006 0817 CW0351 *1022.(-1.2)* 27(8.34)*25.5(0.01)* 0(-160.)*
0(1.48)
15-FEB-2006 0832 CW0351 *1022.(-1.2)* 27(8.34)*25.5(0.01)* 0(-160.)*
0(1.48)
15-FEB-2006 0847 CW0351 *1022.(-1.4)* 28(7.34)*26.8(-1.2)* 0(-160.)*
0(1.48)
15-FEB-2006 0902 CW0351 *1022.(-1.1)* 27(7.19)*25.5(-0.3)* 0(179.)*
0(0.96)
15-FEB-2006 0917 CW0351 *1022.(-1.2)* 27(7.19)*25.5(-0.3)* 0(179.)*
0(0.96)
15-FEB-2006 0932 CW0351 *1022.( -1)* 27(7.19)*25.5(-0.3)* 0(179.)*
0(0.96)
15-FEB-2006 0947 CW0351 *1022.(-0.9)* 27(7.19)*25.5(-0.3)* 0(179.)*
0(0.96)
15-FEB-2006 1002 CW0351 *1023.(-0.8)* 27(6.22)*25.5(-0.4)* 0(-94.)*
0(0.06)
15-FEB-2006 1017 CW0351 *1023.( -1)* 26(7.22)*24.5(0.61)* 0(-94.)*
0(0.06)
15-FEB-2006 1032 CW0351 *1023.( -1)* 26(7.22)*24.5(0.61)* 0(-94.)*
0(0.06)
15-FEB-2006 1047 CW0351 *1023.(-1.3)* 26(7.22)*24.5(0.61)* 0(-94.)*
0(0.06)
15-FEB-2006 1102 CW0351 *1023.(-0.9)* 25(7.42)*23.5( 1.5)* 0(164.)*
0( 0.4)
15-FEB-2006 1117 CW0351 *1023.(-0.9)* 25(7.42)*23.5( 1.5)* 0(164.)*
0( 0.4)
15-FEB-2006 1132 CW0351 *1023.( -1)* 25(7.42)*23.8(1.25)* 0(164.)*
0( 0.4)
15-FEB-2006 1147 CW0351 *1023.( -1)* 25(7.42)*23.8(1.25)* 0(164.)*
0( 0.4)
15-FEB-2006 1202 CW0351 *1023.(-0.4)* 25(7.84)*23.8(1.54)* 0(149.)*
0(0.22)
15-FEB-2006 1217 CW0351 *1024.(-0.5)* 25(7.84)*23.8(1.54)* 0(149.)*
0(0.22)
15-FEB-2006 1232 CW0351 *1024.(-0.8)* 25(7.84)*23.8(1.54)* 0(149.)*
0(0.22)
15-FEB-2006 1247 CW0351 *1024.(-0.8)* 25(7.84)* 24(1.29)* 0(149.)*
0(0.22)
15-FEB-2006 1302 CW0351 *1024.(-0.6)* 25(8.67)* 24(2.07)* 0(21.7)*
0( 0.1)
15-FEB-2006 1317 CW0351 *1024.(-0.8)* 25( 8.7)* 24(2.07)* 0(21.7)*
0( 0.1)
15-FEB-2006 1332 CW0351 *1024.(-0.8)* 26( 7.7)*25.3(0.82)* 0(21.7)*
0( 0.1)
15-FEB-2006 1347 CW0351 *1025.( -1)* 27( 6.7)*26.3(-0.2)* 0(21.7)*
0( 0.1)
15-FEB-2006 1402 CW0351 *1025.(-0.8)* 29(12.3)*28.3(-0.5)* 0(110.)*
0(0.05)
15-FEB-2006 1417 CW0351 *1025.(-0.8)* 31(10.3)*30.2(-2.5)* 0(110.)*
0(0.05)
15-FEB-2006 1432 CW0351 *1025.(-0.9)* 34(7.35)*33.2(-5.4)* 0(110.)*
0(0.05)
15-FEB-2006 1702 CW0351 *1024.(-1.4)* 46(8.39)*31.6(-4.1)* 0(164.)*
0(1.99)
15-FEB-2006 1717 CW0351 *1024.(-1.4)* 47(7.39)*31.7(-4.1)* 0(164.)*
0(1.99)
15-FEB-2006 1732 CW0351 *1024.(-1.2)* 47(7.39)*30.8(-3.2)* 0(164.)*
0(1.99)
15-FEB-2006 1747 CW0351 *1024.(-1.2)* 48(6.39)*29.8(-2.2)* 0(164.)*
0(1.99)
15-FEB-2006 1802 CW0351 *1024.(-1.5)* 50(7.22)*30.6(-3.5)* 0(178.)*
0( 1.9)
15-FEB-2006 1817 CW0351 *1024.(-1.5)* 51(6.22)* 31(-3.9)* 0(178.)*
0( 1.9)
15-FEB-2006 1832 CW0351 *1023.(-1.2)* 51(6.22)*30.4(-3.3)* 0(178.)*
0( 1.9)
15-FEB-2006 1847 CW0351 *1023.(-1.1)* 51(6.22)*30.4(-3.3)* 0(178.)*
0( 1.9)
15-FEB-2006 1902 CW0351 *1023.(-1.5)* 52(6.39)*31.3(-4.8)* 0(177.)*
0(2.06)
15-FEB-2006 2232 CW0351 *1023.( -1)* 48(6.27)*32.2(-5.6)* 0(153.)*
0(1.25)
15-FEB-2006 2247 CW0351 *1023.(-0.9)* 46(8.27)*31.6(-5.1)* 0(153.)*
0(1.25)
15-FEB-2006 2302 CW0351 *1023.(-0.7)* 46(6.19)*32.9(-5.9)* 0(140.)*
0(0.84)
15-FEB-2006 2317 CW0351 *1023.(-0.8)* 45(7.19)*32.8(-5.8)* 0(140.)*
0(0.84)
15-FEB-2006 2332 CW0351 *1023.(-0.8)* 44(8.19)*32.2(-5.2)* 0(140.)*
0(0.84)
15-FEB-2006 Errs CW0351 * 0/96 * 59/96 * 1/96 * 0/96 *
0/96
15-FEB-2006 Smry CW0351 * -1(0.26)*6.63(1.54)*-2.5(2.26)*
47(149.)*1.13(0.74)
Note that times are in UTC. The values displayed are 'Observed (error)'
The error value is 'analysis - observed'. I.e. if your observed value is
higher
than the computed value, then the error will be negative. You have to pick
out
the reading that is in error. The row with the time of 'Smry' is a daily
summary
and the data is 'mean(standard deviation)' for each observation during that
day.
Graphs: http://weather.gladstonefamily.net/qchart/C0351?date=20060216
For more information about quality checking, then visit http://www.wxqa.com/
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