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Project information
Comparability of thermometers and radiation shields in polar climate (COAT)
Call year: 2021
Status: active
IADC_id: 193
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Project description:
Air temperature measurements, for meteorological and climate purposes, are performed by different combinations of thermometers and radiation shields. The response of each system (thermometer + radiation shield) to air temperature changes, residual sun radiation, wind, humidity, etc. depends on the system itself, i.e. on the model of both components, shield and thermometer. This makes the comparability of air temperature measurements, taken around the world, limited, creates inconsistencies in climate data series and reduces the accuracy and reliability of long-term air temperature data. The most powerful tool for increasing the comparability of measurements taken at different times and in different places is the intercomparison of instruments in field. This fact has been recognized by the WMO in multiple documents and recommendations. WMO, aware of the importance of air temperature measurements in meteorology and climatology and the strong influence of external factors on air temperature measurements, regularly performs comparisons of thermometers and radiation shields at different climate conditions. But, at present, an intercomparison of thermometers and radiation shields in polar climate is still missing. COAT project aims at organizing, conducting and analysing an intercomparison of thermometers and radiation shields in the arctic research area of Ny-Ålesund – Svalbard. It is a three years project, starting in October 2020 and its consortium is composed by an international multidisciplinary team, including meteorologists, Earth science researchers and metrologists.
National/International Cooperation:
CEM, Centro Español de Metrología, Tres Cantos (Madrid), SpainrnFederal Office of Meteorology and Climatology MeteoSwiss, Switzerland rnISP-CNR, Institute of Polar Sciences, National Council of Research,Italyrn
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