Regional Office for Europe (ROE), located in WMO, Geneva. Liaise with bodies and agencies of the UN system located within the respective Regions and with regional inter-governmental bodies.

The WMO World Weather and Climate Extremes Archive is a living source of information and provides historical and geographical perspectives of observed limits of extreme weather and climate events.

2023年9月7日 · Since the 1920s, the United States has collected and publicly released World Weather Records from around the world. Although initially begun by the Smithsonian, it is now an activity with WMO sponsorship that is performed by the Archive.

The establishment of the World Meteorological Organization (WMO) in March 1950, following the entry into force of its Convention, and the designation of WMO in 1951 as a specialized agency of the United Nations, heralded a new era for international cooperation in the field of meteorology, hydrology, and related geophysical sciences.

World Weather Records (WWR) have been published since 1927, and include monthly mean values of pressure, temperature, precipitation, and where available, station metadata notes documenting observation practices and station configurations. Data were supplied by National Meteorological Services of the WMO Members.

The WMO was established by the Convention of the World Meteorological Organization, [10] signed 11 October 1947 and ratified on 23 March 1950. The Convention serves as the constituent treaty of the WMO, setting forth its purposes, governance, and general framework.

new observation technologies to support model initialization, developed for atmospheric research and mainly with remote sensing. For the detection of volcanic ash clouds and eruptions, …

this kind of evaluation is the Code 1100, originally derived by Simpson (1906). This old WMO scale (Fig. 1) is still in use. In contrast, since about 1945 most scales have been based on the reverse regression: the wind is averaged for each Beaufort number (Roll, 1951; Verploegh, 1956; Richter, 1956; WMO, 1970).

The Beaufort estimated WS in the individual records of ICOADS and IMD data are based on World Meteorological Organization (WMO) 1100 scale which gives biased WS equivalents.