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kvalobs:kvoss:meetings:20100110 [2010-01-11 13:50:33]
matthiasm
kvalobs:kvoss:meetings:20100110 [2022-05-31 09:29:32] (current)
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 ====== QC2 Acceptance Test & Other Possible Tests ====== ====== QC2 Acceptance Test & Other Possible Tests ======
 +
 +Subject: Acceptance test of precipitation re-distribution algorithms in QC2 (if precip. missing for >= 1 days)
  
 Participants: Per-Ove, Solfrid, Ole Einar, Matthias (author of this page) Participants: Per-Ove, Solfrid, Ole Einar, Matthias (author of this page)
 +
 +Not present: Paul
 +
 +===== Issues discussed: =====
 +
 +  * Test with different kinds of precipitation data: Convective, terrain (complex/flat), proximity to Swedish border
 +
 +  * Precipitation measurements have already 10% measurement inaccuracy; good result if we can achieve a certain (yet unknown) percentage accuracy in estimated values
 +
 +  * Convective case especially challenging: Half of stations could have precipitation, other half not.
 +
 +  * Automatic QC2 should give better result than HQC --> Could this be tested? (Hypothetical HQC test dataset could be used and compared with automatic QC2)
 +
 +  * Tests of QC2 should be carried out using historic data. Results should be compared with measurements.
 +
 +  * We have enough data for extensive evaluation and reliable statistical error estimations.
 +
 +  * Should HQC still check results of automatic QC2 (probably not feasible)
 +
 +  * Is QC2 giving better results than values of numerical models that are stored in KDVH. --> Test this
 +
 +
 +===== Acceptance tests with different datasets: =====
 +
 +  - Precipitation type (convective/frontal)
 +  - Regions/topography/catchment areas
 +  - Station edensity/coverage
 +
 +
  
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