Quantifying random measurement errors in Voluntary Observing Ships' meteorological observations
Quantifying random measurement errors in Voluntary Observing Ships' meteorological observations
Estimates of the random measurement error contained in surface meteorological observations from Voluntary Observing Ships (VOS) have been made on a 30° area grid each month for the period 1970 to 2002. Random measurement errors are calculated for all the basic meteorological variables: surface pressure, wind speed, air temperature, humidity and sea-surface temperature. The random errors vary with space and time, the quality assurance applied and the types of instrument used to make the observations. The estimates of random measurement error are compared with estimates of total observational error, which includes uncertainty due both to measurement errors and to observational sampling. In tropical regions the measurement error makes a significant contribution to the total observational error in a single observation, but in higher latitudes the sampling error can be much larger.
ICOADS, ship, random error, pressure, wind, air temperature, humidity, SST
843-856
Kent, E.C.
ea23f6f0-ccf6-4702-a5c9-184e9c5d4427
Berry, D.I.
55ffc590-f459-49c8-aecf-842d65aeb0fb
2005
Kent, E.C.
ea23f6f0-ccf6-4702-a5c9-184e9c5d4427
Berry, D.I.
55ffc590-f459-49c8-aecf-842d65aeb0fb
Kent, E.C. and Berry, D.I.
(2005)
Quantifying random measurement errors in Voluntary Observing Ships' meteorological observations.
International Journal of Climatology, 25 (7), .
(doi:10.1002/joc.1167).
Abstract
Estimates of the random measurement error contained in surface meteorological observations from Voluntary Observing Ships (VOS) have been made on a 30° area grid each month for the period 1970 to 2002. Random measurement errors are calculated for all the basic meteorological variables: surface pressure, wind speed, air temperature, humidity and sea-surface temperature. The random errors vary with space and time, the quality assurance applied and the types of instrument used to make the observations. The estimates of random measurement error are compared with estimates of total observational error, which includes uncertainty due both to measurement errors and to observational sampling. In tropical regions the measurement error makes a significant contribution to the total observational error in a single observation, but in higher latitudes the sampling error can be much larger.
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Published date: 2005
Keywords:
ICOADS, ship, random error, pressure, wind, air temperature, humidity, SST
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Local EPrints ID: 16204
URI: http://eprints.soton.ac.uk/id/eprint/16204
PURE UUID: 3e5e1d58-53d6-48ec-a7db-5c8558906944
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Date deposited: 29 Jun 2005
Last modified: 15 Mar 2024 05:46
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Author:
E.C. Kent
Author:
D.I. Berry
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