MIDAS: Global Marine Meteorological Observations Data

The global marine meteorological observations data contains marine meteorological values, such as wave heights and periods, wind speed and direction, present weather, and air and sea temperature, measured during the hour ending at the stated date and time. The data is collected by worldwide observation stations and transmitted within the following message types: Ship SYNOP, which is also referred to as FM 13-IX SHIP, FM 18-X BUOY, Light Vessel, Marid, Marine logbooks, NAVY, OWS, PLAT/RIG, and VOF. In this dataset the different message types are all described by the SHIP message name. Data are available from 1854 to present.

The data consist of:

Offshore wind (speed and direction)

Weather (present, past)

Cloud (amount, type, base amount, base height)

Pressure (mean sea level)

Visibility

Temperature (air, dew-point, wetbulb, sea)

Relative humidity

Wave (direction, period, height)

Wind-wave (period, height)

Swell (direction, -wave period, height)

Ship direction and distance

Maximum gust speed and period

The wind speed is given to the nearest knot, direction to the nearest 10 degrees, and the time of the maximum gust is given to the nearest 0.1 hour. The wind direction from which the wind blows, is measured in Degrees (true). The entry for an east wind is 090, for a south wind it is 180 and so on clockwise. Note that zero values in both wind speed and wind direction fields indicate that there was no wind blowing at the time of observation.

The temperature and dew point are given to the nearest 0.1 degree Celsius, the pressure is given to the nearest 0.1 hectopascal, the cloud base height and the visibility are given to the nearest decametre. Cloud amount is reported in oktas.

The past weather is recorded as a number between 0-9 which details what the weather has been like in the last 6 hours for observations at 00, 06, 12, 1800 UTC, the last 3 hours for observations at 03, 09, 15, 2100 UTC and the previous hour at any other times. The past weather is only recorded when a manual observation is done at the station.

Marine reports are defined by position (latitude and longitude) and by time. Duplicates can exist at a specified position and time, e.g. when ships are alongside for bunkering, so the identifier of the ship or buoy is part of the primary key of the entity.

A great many ships do not include a valid call sign in their reports; the call sign may be missing or invalid. When this occurs, Midas will substitute the call sign value “SHIP”.

Identification info

Metadata Language: English (en)

Dataset Reference Date (): 2006-08-07T14:58:31

Dataset Reference Date (): 2006-08-07T14:58:31

Identifier: http://catalogue.ceda.ac.uk/uuid/77910bcec71c820d4c92f40d3ed3f249

Identifier: NCAS British Atmospheric Data Centre (NCAS BADC) / 77910bcec71c820d4c92f40d3ed3f249

Met Office - author

Met Office , FitzRoy Road , Exeter , EX1 3PB ,

0370 900 0100

NCAS British Atmospheric Data Centre (NCAS BADC) - custodian

British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK

+44(0)1235 446432

NCAS British Atmospheric Data Centre (NCAS BADC) - distributor

British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK

+44(0)1235 446432

NCAS British Atmospheric Data Centre (NCAS BADC) - point_of_contact

British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK

+44(0)1235 446432

NCAS British Atmospheric Data Centre (NCAS BADC) - publisher

British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK

+44(0)1235 446432

Maintenance and update frequency: monthly

Update scope: dataset

Keywords

Met Office
MIDAS
Marine Observations
wave height
PRECIPITATION
ATMOSPHERE
ATMOSPHERICPHENOMENA
SNOW
ATMOSPHERICRADIATION

GEMET - INSPIRE themes, version 1.0 ()

atmospheric conditions

Limitations on Public Access: otherRestrictions

Other constraints: Restricted data: please submit an application using the REQUEST ACCESS link for access.

Use constraints: otherRestrictions

Other constraints: Use of these data is covered by the following licence: http://licences.ceda.ac.uk/image/data_access_condition/ukmo_agreement.pdf . When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: grid

Topic category

Climatology, meteorology, atmosphere

Begin date: 1854-01-01T00:00:00

Code: WGS 84

Distribution Information

Data format

Data are ASCII formatted ()

Resource Locator: CEDA Data Catalogue Page
Detail and access information for the resource

Resource Locator: DOWNLOAD
Download Data

Resource Locator: Met Office MIDAS Quick User Guide
No further details.

Resource Locator: Copy of Met Office Hadley Centre report on the "Digitization of Metform data and Conversion to Flatfile Integer Format"
No further details.

Resource Locator: Information on versioning in MIDAS data
No further details.

Resource Locator: BADC Doc: Global Marine Observations (MO) Table details
No further details.

Resource Locator: Met Office - Marine Automatic Weather Station (MAWS) network doceumentation
No further details.

Resource Locator: Link to column headings in comma separated text file
No further details.

Resource Locator: Link to column headings in Excel file
No further details.

Resource Locator: MIDAS User Guide version v20200921
No further details.

Resource Locator: CEDA Data Catalogue Page
Detail and access information for the resource

Resource Locator: DOWNLOAD
Download Data

Resource Locator: Met Office MIDAS Quick User Guide
No further details.

Resource Locator: Copy of Met Office Hadley Centre report on the "Digitization of Metform data and Conversion to Flatfile Integer Format"
No further details.

Resource Locator: Information on versioning in MIDAS data
No further details.

Resource Locator: BADC Doc: Global Marine Observations (MO) Table details
No further details.

Resource Locator: Met Office - Marine Automatic Weather Station (MAWS) network doceumentation
No further details.

Resource Locator: Link to column headings in comma separated text file
No further details.

Resource Locator: Link to column headings in Excel file
No further details.

Resource Locator: MIDAS User Guide version v20200921
No further details.

Quality Scope: dataset

Report

Dataset Reference Date (): 2010-12-08

Statement: Data collated by the Met Office and archived in the Met Office's MIDAS database. Data are extracted from a sub-set of available tables and delivered to BADC approximately on a monthly basis as flat files.

Metadata

File identifier: 77910bcec71c820d4c92f40d3ed3f249 XML

Metadata Language: English (en)

Character set: 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646

Parent identifier: Met Office Integrated Data Archive System (MIDAS) Land and Marine Surface Stations Data (1853-current) 220a65615218d5c9cc9e4785a3234bd0

Resource type: dataset

Metadata Date: 2023-01-26T01:06:21

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

NCAS British Atmospheric Data Centre (NCAS BADC)

British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK

+44(0)1235 446432

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