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  "bytes": 240890,
  "generated": "2026-10-22T18:24:09Z",
  "erddap_base": "https://pae-paha.pacioos.hawaii.edu/erddap",
  "erddap_version": "2.29",
  "sql": "-- per date x class composition for one place from a categorical ERDDAP griddap slab (seascapeR's\n-- sum_ss_grds_to_ts(): how much of the place is in each class on each date).\n--   s.\"CRW_BAA\"  the class expression over the slab alias `s` (e.g. s.\"CLASS\"); cast to BIGINT here\n--   (SELECT DISTINCT * FROM read_parquet([<one griddap slab per lobe for the chunk>]))  the registered griddap file (parquet) or view\n--   mask  the mask table: latitude, longitude, weight (0,1]\n-- `fraction` is area-weighted (partial boundary cells count for their overlap) and sums to exactly 1\n-- over the classes of a date; `percent_cells` is the unweighted cell count share.\n-- the join is the same exact equality on ROUND(x, 3) as stats_daily.sql (float32 axis vs float64 mask).\nWITH cells AS (\n  SELECT\n    -- utc day; via epoch_ms because duckdb-wasm ships without icu, so TIMESTAMPTZ::DATE is unimplemented there\n    make_timestamp(epoch_ms(s.\"time\") * 1000)::DATE AS date,\n    CAST(s.\"CRW_BAA\" AS BIGINT)                        AS class,\n    m.weight                                        AS weight\n  FROM (SELECT DISTINCT * FROM read_parquet([<one griddap slab per lobe for the chunk>])) s\n  JOIN mask m\n    ON  ROUND(s.latitude::DOUBLE,  3) = ROUND(m.latitude::DOUBLE,  3)\n    AND ROUND(s.longitude::DOUBLE, 3) = ROUND(m.longitude::DOUBLE, 3)\n  WHERE s.\"CRW_BAA\" IS NOT NULL\n),\ntotals AS (\n  SELECT date, count(*) AS n_total, sum(weight) AS weight_total\n  FROM cells\n  GROUP BY 1\n)\nSELECT\n  c.date                                    AS date,\n  c.class                                   AS class,\n  count(*)                                  AS n,\n  sum(c.weight)                             AS weight,\n  sum(c.weight) / any_value(t.weight_total) AS fraction,\n  100.0 * count(*) / any_value(t.n_total)   AS percent_cells\nFROM cells c\nJOIN totals t USING (date)\nGROUP BY c.date, c.class\nORDER BY 1, 2"
}