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Observing Platforms
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B1 -- wind2 out of alignment #69

Closed neaptide closed 6 years ago

neaptide commented 7 years ago

On April 29, according to data graph, the bottom anemometer (wind2) became misaligned (by ~ 90 deg) relative to top (wind1) anemometer.

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neaptide commented 7 years ago

Working with NDBC and processing NDBC nearest neighbor data, the processing code from level0 to level1 now can apply offsets in each config file. If there is a change, like the above offset, starting a new config file with appropriate start_config and end_config and offset_vars and offset_vals will handle various changes like anemometer offsets. Here is the reprocessed corrected data ...

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But we should keep an eye on this and if more offsets occur from current settings, we should check mechanic issues on maintenance visit.

neaptide commented 7 years ago

wdir2 shifted again on 23-Jun-2017 at 23:18:00, first by about 55 deg then has been closer to 43 deg (less than wdir1, so counter-clockwise).

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So will apply +42 deg offset to wdir2 starting at 23-Jun-2017 23:24:00. That takes care of change since Saturday night, but it seems to have been changing in minor amounts over the past 7 days or so. Either the anemometer is loose or the whole assembly (Al pipe + delrin rod) is loose.

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neaptide commented 6 years ago

replacing this issue with new issue #73 and closing