Monthly Gridded Met Office Historical Marine Air Temperature (MOHMATN4) anomalies (1856-2006)

MOHMAT, (Met Office Historical Marine Air Temperature) is a gridded dataset of marine air temperature anomalies covering the period 1856-2006. The current version of the dataset is MOHMAT4, which is described in reference below (under Doc tab).

MOHMAT is produced by taking in-situ measurements of MAT from ships and buoys, rejecting measurements which fail quality checks, converting the measurements to anomalies by subtracting climatological values from the measurements, and averaging the resulting anomalies on a 5 by 5 degree monthly grid. Note that only night-time data are used, because day-time data are corrupted by heat island effects.



Up to 1996 the measurements used are those in the U.K. Marine Data Bank; more recent years use data coming in through the GTS. MOHMAT is no longer updated.



After gridding the anomalies, bias corrections are applied to remove spurious trends caused by changes in ship deck heights and various unusual operational practices, and the data are smoothed to reduce noise.



The data are provided by the Met Office.

Simple

Date (Publication)
2007-02-02T17:08:47
Date (Creation)
2007-02-02T17:08:47
Citation identifier
https://catalogue.ceda.ac.uk/uuid/365e5e62328975643e320d418bc34e95
Citation identifier
NCAS British Atmospheric Data Centre (NCAS BADC) / 365e5e62328975643e320d418bc34e95
Point of contact
Organisation name Individual name Electronic mail address Role

Hadley Centre for Climate Prediction and Research (MOHC)

unknown

 		Author

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Custodian

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Distributor

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

pointofContact

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Publisher
Maintenance and update frequency
Not planned
Update scope
Dataset
Keywords

  • SST

  • MOHMAT

  • Met Office

  • Hadley

  • anomalies

GEMET - INSPIRE themes, version 1.0

  • atmospheric conditions
Access constraints
Other restrictions
Other constraints
Restricted data: please submit an application using the REQUEST ACCESS link for access.
Use constraints
Other restrictions
Other constraints
Under the following licence https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf, appropriate use of these data may fall under academic use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Spatial representation type
Grid
Language
English
Topic category
  • Climatology, meteorology, atmosphere
N
S
E
W
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Begin date
1856-01-01T00:00:00
End date
2006-08-30T23:00:00
Unique resource identifier
WGS 84
Distribution format
Name Version

Data are ASCII formatted
Distributor contact
Organisation name Individual name Electronic mail address Role

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Distributor
OnLine resource
Protocol Linkage Name
https://catalogue.ceda.ac.uk/uuid/365e5e62328975643e320d418bc34e95

CEDA Data Catalogue Page
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/badc/ukmo-gosta/data/mohmatn4/

DOWNLOAD
OnLine resource
Protocol Linkage Name
http://dx.doi.org/10.1007/BF01095162

Parker D.E. et al., 1995
OnLine resource
Protocol Linkage Name
http://dx.doi.org/10.1029/2002JD002670/

Rayner N.A. et al., 2003
OnLine resource
Protocol Linkage Name
http://dx.doi.org/10.1175/1520-0442(2003)016<2859:TAVISP>2.0.CO;2

Folland C.K. et al., 2003
OnLine resource
Protocol Linkage Name
https://artefacts.ceda.ac.uk/badc_datadocs/gisst/file_format.html#mohmatn4

MOHMATN4 File Format Explained
Hierarchy level
Dataset

Conformance result

Title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication)
2010-12-08
Statement

Data files acquired by the BADC from the Met Office Hadley Centre in 2000.

Metadata

File identifier
365e5e62328975643e320d418bc34e95 XML
Metadata language
English
Character set
UTF8
Parent identifier
Met Office Global Ice coverage and Sea Surface Temperatures (GISST), and Monthly night marine air temperature/SST anomalies (MOHMATN4)/(MOHSST6) Data (1856-2006)

fda780a7697f384010674ebb1d5e4f23
Hierarchy level
Dataset
Date stamp
2025-12-10T03:02:00
Metadata standard name
UK GEMINI
Metadata standard version

2.3
Metadata author
Organisation name Individual name Electronic mail address Role

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Point of contact
 
 

Overviews

Spatial extent

thumbnail

Keywords

GEMET - INSPIRE themes, version 1.0

atmospheric conditions


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