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https://issues.apache.org/jira/browse/SDAP-50?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16618270#comment-16618270
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Joseph Jacob commented on SDAP-50:
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With the changes implemented to address this issue, the following NEXUS end
point now gives a result that is identical to Giovanni's output for the same
parameters in a pixel-by-pixel visual comparison:
/latitudeTimeHofMoellerSpark?spark=local,4,8&ds=MODIS_TERRA_AOD_500&minLat=37&maxLat=41&minLon=-109&maxLon=-102&startTime=1420070400&endTime=1421366399
/longitudeTimeHofMoellerSpark?spark=local,4,8&ds=MODIS_TERRA_AOD_500&minLat=37&maxLat=41&minLon=-109&maxLon=-102&startTime=1420070400&endTime=1421366399
> Fix incorrect Hovmoller Implementation
> --------------------------------------
>
> Key: SDAP-50
> URL: https://issues.apache.org/jira/browse/SDAP-50
> Project: Apache Science Data Analytics Platform
> Issue Type: Bug
> Components: nexus
> Reporter: Frank Greguska
> Assignee: Joseph Jacob
> Priority: Major
> Fix For: 0.1
>
>
> Currently the Hovmoller calculation is averaging latitudes or longitudes
> within individual tiles. However, depending on the search domain, unique
> lats/lons can be in multiple tiles.
> The algorithm needs to be updated to average all unique (time, lat) or (time,
> lon) values regardless of tiles.
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