forked from gsn/predictor
26 lines
528 B
Go
26 lines
528 B
Go
package grib
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import (
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"fmt"
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"hash/fnv"
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"time"
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)
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var steps = []int{0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48}
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func nearestRun(t time.Time) time.Time {
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h := t.UTC().Hour() - t.UTC().Hour()%6
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return time.Date(t.Year(), t.Month(), t.Day(), h, 0, 0, 0, time.UTC)
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}
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func fileName(run time.Time, step int) string {
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return fmt.Sprintf("gfs.t%02dz.pgrb2.0p50.f%03d", run.Hour(), step)
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}
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func encodeKey(a ...any) uint64 {
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h := fnv.New64a()
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for _, v := range a {
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fmt.Fprint(h, v)
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}
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return h.Sum64()
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}
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