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Testing and Development of QA Methods
Testing and Development of QA Methods
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Precip tank drain QA methods
GCE flags
CS2MET Test case
Quick detour to create a timeseries for all NOAHIV columns
Tot >= precision
Tank below instrument
GCE flagged but wrong value
No accum during drain
How to find drains
Recharge Standardized May 2019
Investigate drain/recharge situations
Separate recharge from real rain
Separate drain from recharge
Test Drain and Recharge Rules
Get all years
Program Rules
Testing
Clog QA Methods
Exploring Clogs
Let’s get some Data
Clear up 10/1 repeats
Track down missing values
GCE flagging during clogs
J flag
F flag
Do GCE flags ID clog periods
Is precip always 0 when M
Flags need to propagate
Remove duplicate values
9/6/22 ‘EM’ & “0 tank” issue
Comparing paired sensors during clogs
Precip Minus PairedPrecip
Looking for optimal timestep
What metric is consistent for entire clog?
Capturing clogs from ACC ratio
Create clean ACC data
Find the clog
Fine Tune parameters
threshold for below normal ratio
running average
Check false positives
Early season lag
WY19 test
Weird exceptoins
Finding Artificial Precip
False precip with flat tank
Max == min
Max==min w/ a buffer
QaRules.flag_duplicate_precip
Comparing tank change to precip
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Testing and Development of QA Methods