„sunshine“-Array hat fehlerhaften Beginn

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#21 opened on Mar 8, 2024 5 comments 1 reaction 0 assignees View on GitHub

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Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 48/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Quiet
Tech stack: python
Domain: api, backend

Research direction

Start with the stationOverviewExtended endpoint for station 10505 and trace how forecast1 and forecast2 sunshine arrays are assembled. Compare the hourly offsets and source data used for both forecasts; done means forecast1 begins at the stated midnight boundary and its values are consistent with the underlying hourly data.

Written by the indexing model from the issue text.

Description

In https://dwd.api.proxy.bund.dev/v30/stationOverviewExtended?stationIds=10505 enthält "sunshine" in "forecast1" folgendes Array:

[
    490, 540, 540, 530, 530, 530, 510, 470, 370, 190,   0,   0,   0,   0,
      0,   0,   0,   0,   0,   0,   0,   0,  80, 210, 320, 390, 410, 390,
    370, 340, 270, 230, 140,  50,   0,   0,   0,   0,   0,   0,   0,   0,
      0,   0,   0,   0,  30, 100, 170, 200, 220, 210, 180, 150, 120,  80,
     10,   0,   0,   0,   0,   0,   0
  ]

Das ergibt keinen Sinn wenn man bedenkt, daß das stündliche Werte sind, die bei Mitternacht beginnen. In "forecast2" sieht es sinnvoll aus:

[
      0,   0, 110, 400, 430, 200,  10,   0,   0,   0, 160, 560, 540, 390,
     40,   0,   0,   0, 220, 630, 650, 400,  30,   0,   0,   0, 280, 720,
    660, 450,  30,   0,   0,   0, 230, 560, 590, 400,  30,   0,   0,   0,
    240, 620, 610, 450,  50,   0,   0,   0, 290, 620, 620, 450,  60,   0
  ]

Hier liegen 3 Stunden zwischen zwei Einträgen, d.h. die Sonne fängt um 6 Uhr morgens an zu scheinen. Das ist plausibel.

Dominant language: Python
Stars: 148
Forks: 11
PR merge metrics: No merged PRs in 30d

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