Atmospheric pressure (ship level)
- 36,610
- values
- 0
- flagged
- 36,610
- sampling events
- 2016–2022
- years
- 1
- dataset
- surface
- depth
- Jan · Feb · Mar · Apr · May · Jul · Aug · Oct · Nov
- seasons
CalCOFI holds 36,610 values of it from 36,610 sampling events in one dataset, 2016–2022, at the surface.R The North Pacific High is what sets the coastal wind, and how strong and how far north it sits in winter shapes the upwelling and the productivity of the season that follows.C
other ways to say why · 2
- Pressure at the ship is one point in that pattern; it is read against the basin-scale fields, not alone. needs a citation before it can be the pick
- Wikipedia The North Pacific High is a semi-permanent, subtropical anticyclone located in the northeastern portion of the Pacific Ocean, located northeast of Hawaii and west of California. It is part of the great belt of anticyclones known as the subtropical ridge. North Pacific High · CC BY-SA 4.0 · rev. 1268612693
The measurement
Measured in i
One row per series, one cell per year, darker with more values — the same strip the front
door draws per dataset and a species page draws per taxon. Each row is one dataset's own
measurement_type; the label is written once, in the title above.
i
One row per series, one cell per year, darker with more values — the same strip the front door draws per dataset and a species page draws per taxon. Each row is one dataset's own measurement_type; the label is written once, in the title above.
-
series
atm_pressure_mb· source columnatm_pressure_mbno flag at this grain no P01 concept
How it is measured
Why it matters
The familiar scale i
Bars are each series' 5th–95th percentile, the line its minimum to maximum, the ring its median;
the marks are metadata/measurement_scale.csv's, each hovering to its own source.
i
Bars are each series' 5th–95th percentile, the line its minimum to maximum, the ring its median;
the marks are metadata/measurement_scale.csv's, each hovering to its own source.
The record’s own history i
i
The release builds no climatology for this measurement, so there is no normal to draw a departure from.
The record
Ways in i
Read from measurements.json of release
v2026.10.14, written at release by
calcofi4db::build_measurements_catalog() beside
taxa.json. The catalog's index is
/measurements/; the JSON-LD on this page is a
schema.org/DefinedTerm in the NERC P01 term set with a
PropertyValue per series.
Explorerdb-queryi
Read from measurements.json of release v2026.10.14, written at release by calcofi4db::build_measurements_catalog() beside taxa.json. The catalog's index is /measurements/; the JSON-LD on this page is a schema.org/DefinedTerm in the NERC P01 term set with a PropertyValue per series.
SELECT * FROM read_json('…/v2026.10.14/catalog.json')
-- objects[] WHERE table = 'obs_env'
-- AND partition_value = 'atm_pressure_mb'library(calcofi4r)
con <- cc_get_db() # the promoted release
tbl(con, "obs_env") |> filter(measurement_type %in% c("atm_pressure_mb"))import calcofi4py as cc
con = cc.cc_get_db()
con.sql("SELECT * FROM obs_env WHERE measurement_type IN ('atm_pressure_mb')").df()By depth i
Values per depth band at the release grain, one thin bar per series. The bands are the
record's own (0-10 … 2000+ m).
i
Values per depth band at the release grain, one thin bar per series. The bands are the record's own (0-10 … 2000+ m).
By month i
Values per calendar month, one row per series: CalCOFI's quarterly cruises show as peaks in
the months the ships sail.
i
Values per calendar month, one row per series: CalCOFI's quarterly cruises show as peaks in the months the ships sail.
Range & quality
details
- bounds
- The registry declares
800 … 1100 mbforatm_pressure_mb; a value outside it is dropped at the ingest (drop_out_of_bounds()). - observed
- Underway Meteorological (METS)
atm_pressure_mb996.8 · median 1016 · 1034 mb (5th–95th percentile 1010–1023) - flags
- Underway Meteorological (METS)
atm_pressure_mbcarries no quality code at the release grain; qual_ok keeps all 36,610. - baseline
- No climatology row is built for this measurement, so the Explorer draws values, not anomalies.
Cite
Cite the release; each dataset's own citation, licence and DOI are on its page — Underway Meteorological (METS). The Explorer's Share → Cite writes it for the view you make.