Air temperature
- 28,100
- values
- 0
- flagged
- 28,100
- sampling events
- 2016–2022
- years
- 1
- dataset
- surface
- depth
- Jan · Feb · Mar · Apr · May · Jul · Aug · Oct · Nov
- seasons
stands in: temperature’s face, air, not water -- same physical quantity
No definition of its own: the estimate is described by its derivation, under How.
CalCOFI holds 28,100 values of it from 28,100 sampling events in one dataset, 2016–2022, at the surface.R The difference between the air and the sea is what moves heat across the surface, and it was an unusually small loss of heat to the atmosphere that built the warm anomaly off this coast.C
other ways to say why · 2
- Air temperature at the mast is also the quickest check on a sea-surface reading taken beside it. needs a citation before it can be the pick
- Wikipedia Atmospheric temperature is a measure of temperature at different levels of the Earth's atmosphere. It is governed by many factors, including incoming solar radiation, humidity, and altitude. Atmospheric temperature · CC BY-SA 4.0 · rev. 1374018382
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
air_temp_c· source columnair_temp_cno 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 = 'air_temp_c'library(calcofi4r)
con <- cc_get_db() # the promoted release
tbl(con, "obs_env") |> filter(measurement_type %in% c("air_temp_c"))import calcofi4py as cc
con = cc.cc_get_db()
con.sql("SELECT * FROM obs_env WHERE measurement_type IN ('air_temp_c')").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
-50 … 60 °Cforair_temp_c; a value outside it is dropped at the ingest (drop_out_of_bounds()). - observed
- Underway Meteorological (METS)
air_temp_c1.612 · median 15.79 · 25.22 °C (5th–95th percentile 12.65–19.2) - flags
- Underway Meteorological (METS)
air_temp_ccarries no quality code at the release grain; qual_ok keeps all 28,100. - 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.