For the "trajectory" discrete sampling geometry, the data design pattern for
the data and coordinate variables are:
data(index, observation)
x(index, observation)
y(index, observation)
z(index, observation)
The hurricane product grows with a new hurricane intensity value is added every
30 minutes.
For this product, the simplest thing to do is increment the index for each new
hurricane intensity value. Given this the data and coordinate variables look
like:
data(index)
x(index)
y(index)
z(index)
This looks like a "point" discrete sampling geometry even though it is a
trajectory.
Would a hurricane intensity product designed like a point discrete sampling
geometry but identified as a trajectory (cf_role = "trajectory_id") be in
conformance with the CF conventions ?
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