Air temperature
°Ckey air_temp_cno NERC concept says exactly thisseries air_temp_c
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
- 28,100
- values
- 0
- flagged
- 2016–2022
- years
- 1
- dataset
- surface
- depth
- 9 of 12
- months
Measured in
1 dataset
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
Explorerdb-queryERDDAPThis page as JSON R · Python · Parquet
Every way in 7 ways · ERDDAP · Parquet · R · Python · JSON
Read from measurements.json of release v2026.11.05, 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-querySELECT * FROM read_json('…/v2026.11.05/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()How it is measured underway, on the mast
Why it matters 3 ways to say it
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 record’s own history no climatology to depart from
Each year against the normal i
i
The release builds no climatology for this measurement, so there is no normal to draw a departure from.
Units and range °C · -50 … 60 declared · 0 flagged
°C (deg_C in metadata/measurement_type.csv)
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.
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.
By depth · by month surface · 9 of 12 months
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.
Cite the release, v2026.11.05
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.