NERC Data Catalogue Service
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 MOHMAT is no longer updated.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
- Identifier
- NCAS British Atmospheric Data Centre (NCAS BADC) / 365e5e62328975643e320d418bc34e95
- Maintenance and update frequency
- notPlanned Not planned
- Update scope
- dataset Dataset
- Keywords
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- SST
- MOHMAT
- Met Office
- Hadley
- anomalies
- GEMET - INSPIRE themes, version 1.0
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- atmospheric conditions
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- Restricted data: please submit an application using the REQUEST ACCESS link for access.
- Use constraints
- otherRestrictions Other restrictions
- Spatial representation type
- grid Grid
- Metadata language
- EnglishEnglish
- Topic category
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- Climatology, meteorology, atmosphere
))
- Begin date
- 1856-01-01T00:00:00
- End date
- 2006-08-30T23:00:00
- Unique resource identifier
- WGS 84
- Distribution format
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Data are ASCII formatted
()
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Data are ASCII formatted
()
- OnLine resource
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CEDA Data Catalogue Page
Detail and access information for the resource
- OnLine resource
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DOWNLOAD
Download Data
- OnLine resource
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Parker D.E. et al., 1995
No further details.
- OnLine resource
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Rayner N.A. et al., 2003
No further details.
- OnLine resource
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Folland C.K. et al., 2003
No further details.
- OnLine resource
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MOHMATN4 File Format Explained
No further details.
- Hierarchy level
- dataset Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
- Data files acquired by the BADC from the Met Office Hadley Centre in 2000.
- File identifier
- 365e5e62328975643e320d418bc34e95 XML
- Metadata language
- EnglishEnglish
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 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 Dataset
- Date stamp
- 2025-11-15T03:01:54
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
Overviews
Spatial extent
Provided by
