wiki.met.no kvalobs:kvoss:system:qc2:test:algorithms

Akima Tests

anonymous@undisclosed.example.com (Anonymous) — Tue, 31 May 2022 09:29:32 +0000

Akima Tests The following graphs illustrate comparisons between an Akima Interpolation and Linear Interpolation for single missing points. The title gives the time of the missing value, which is located at Hours=3 on each graph. The linear interpolation is the square on the straight line segment. The real data are displayed as blue squares. The curve is the Akima Spline and the corrected value that would be provided by the Akima Interpolation is indicated by the triangle.

DIP TEST

anonymous@undisclosed.example.com (Anonymous) — Tue, 31 May 2022 09:29:32 +0000

DIP TEST Output of various tests. The latest is always posted at the top of the page. * Also see the application of Akima to the Diptest Simulated Test Data after Flag 9.7 Updates Review The last results of testing this algorithm are provided below (subsections labeled

Redistribution algorithm: preparation for production release

anonymous@undisclosed.example.com (Anonymous) — Tue, 31 May 2022 09:29:32 +0000

Redistribution Algorithm : notes on dev-vm101 tests 20101019

anonymous@undisclosed.example.com (Anonymous) — Tue, 31 May 2022 09:29:32 +0000

Redistribution Algorithm : notes on dev-vm101 tests 20101019 On 20101019 the redistrbution algorithm was run for the last 14 days of paramid=110, RR_24 data. The results obtained are listed below. Please note the algorithm has now been turned off so over the next days data will not be affected (this helps with any independent work with precipcolledted flag), the algorithm may be rerun after a few days as required to check any modiifications etc. .

Useinfo Controls

anonymous@undisclosed.example.com (Anonymous) — Tue, 31 May 2022 09:29:32 +0000

Useinfo Controls Specification Proposal: * 8 > useinfo(0) > 0 (some qc has been done) * useinfo(1) = 0 (ok obs time) * useinfo(2) < 2 (original is ok or probably correct) * useinfo(3) < 3 (original unchanged and manually corrected or interpolated)

Single Missing Point Revised

anonymous@undisclosed.example.com (Anonymous) — Tue, 31 May 2022 09:29:32 +0000

Single Missing Point Revised The tests at singlemissingpoint confirmed the basic performance of the interpolation. This page now looks at the [revised specification] and the flag handling that this implies. Example Scenarios: fmis=1 50540 | 2008-03-30 14:00:00 | 6.4 | 211 | 2008-03-30 13:54:58 | 330 | 0 | 0 | 6.4 | 1110100000000010 | 7000000000000000 | 50540 | 2008-03-30 15:00:00 | -32767 | 211 | 2008-03-30 15:30:04 | 3 | 0 | 0 | -32767 |…