use zero for land-values throughout Parcels#2762
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erikvansebille wants to merge 2 commits into
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Description
This PR implements the definition that land values are zero in Parcels. This choice is intuitive for velocities (since ocean velocities are zero on land) and is needed for slip boundary conditions. For tracer fields, using zero for land also works nicer because NaNs currently throw errors. The
XLinearInvdistLandTracerinterpolator also assumes that land is 0.0This PR adds a
_assert_no_nan_in_field_data()function that throws aValueErrorwhen there are NaNs in the Sgrid-dataset, and addsfillna(0)calls to some of the convert functions.This PR supersedes #2451
Checklist
mainfor normal development,v3-supportfor v3 support)AI Disclosure
None