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IOM Report, 85. TWMO Radiosonde Humidity Sensor Intercomparison: final report of Phase I and Phase II
World Meteorological Organization (WMO) ; Kats A.; Krestyannikova N.; et al. - WMO, 2006 (WMO/TD-No. 1305)PHASE I: Laboratory Test
- Central Aerological Observatory (Dolgoprudny, Russian Federation, June 1995 - June 1997): A. Balagurov, A. Kats, N. Krestyannikova (Russian Federation)
PHASE II: Field Test
- NASA Wallops Flight Facility (Virginia, United States, 8 - 26 September 1995): F. Schmidlin (United States)
IOM Report, 81. Initial Guidance to Obtain Representative Meteorological Observations at Urban Sites
IOM Report, 93. Instrument Development Inquiry
World Meteorological Organization (WMO) ; van der Meulen J.P. - WMO, 2006 (7th edition; WMO/TD-No. 1382)
IOM Report, 91. The International Pyrheliometer Comparison: final report
World Meteorological Organization (WMO) ; Fisch Gilberto F.; Machado Luiz Augusto T.; et al. - WMO, 2006 (WMO/TD-No. 1320)
IOM Report, 90. The WMO Intercomparison of GPS Radiosondes: final report
World Meteorological Organization (WMO) ; Fisch Gilberto F.; Machado Luiz Augusto T.; et al. - WMO, 2006 (WMO/TD-No. 1314)
IOM Report, 84. The WMO Laboratory Intercomparison of Rainfall Intensity Gauges: final report
World Meteorological Organization (WMO) ; Leroy Michel; Alexandropoulos C.; et al. - WMO, 2006 (WMO/TD-No. 1304)
IOM Report, 72. Report by the rapporteur on radiosonde compatibility monitoring
Part A: WMO Catalogue of Radiosondes and Upper-air Wind Systems in Use by Members (1998)
Part B: Compatibility of Radiosonde Geopotential Measurements 1995, 1996 and 1997
IOM Report, 66. Recent changes in thermometer design and their impact
Recent changes to thennometer screen design and a heightened awareness of global climate changes have focused the mind of the meteorological world, in particular climatologists, on the effects these changes are bringing about. There is concern that any changes that take place could influence the homogeneity of the temperature records. The purpose of this report is to examine the recent published work on instrument screens, intercomparisons and theoretical studies and to make recommendations on how to proceed with ensuring continuity in the meteorological records. The practice of temperature sc ...
IOM Report, 67. WMO Solid precipitation measurement intercomparison : final report
The WMO Solid Precipitation Measurement Intercomparison was started in the northern hemisphere winter of 1986/87. The field work was carried out in 13 Member countries for seven years. The Intercomparison was the result of Recommendation 17 of the ninth session of the Commission for Instruments and Methods of Observation (CIMO-IX). As in previous WMO intercomparisons of rain gauges, the main objective of this test was to assess national methods of measuring solid precipitation against methods whose accuracy and reliability were known. It included past and current procedures, automated systems ...
IOM Report, 65. Guidance on automatic weather systems and their implementation
World Meteorological Organization (WMO) ; Jones D.W.; Bureau of Meteorology - WMO, 1997 (WMO/TD-No. 862)This report, prepared under the supervision ofDr R. Canterford (Australia), Chairman ofthe above Working Group, is the culmination ofthe work of several meteorologists and physicists working in the Australian Bureau ofMeteorology. The major part is based on a previous document on Automatic Weather Stations (AWS) by Mr. E. lesson, formerly of the Bureau of Meteorology and CIMO Rapporteur in this field. This was expanded to include, in Part I, the latest material on AWS technology and, in Part IT, guidance for the implementation ofnetworks and training ofusers ofdata produced by automatic statio ...
IOM Report, 56. Report by the rapporteur on radiosonde compatibility monitoring
Part A - WMO Catalogue of Radiosondes and Upper-air Wind Systems in Use by Members.
Part B - Compatibility of Radiosonde Geopotential Measurements 1990, 1991, 1992
IOM Report, 54. Instrument development inquiry
This publication reports on the results of the fifth edition of the Instrument Development Inquiry. As stated in Res. 4 of CIMO-X, the Commission for Instruments and Methods of Observation (CIMO) had decided to circulate to all W.M.O. Members a new questionnaire on instrument development. A total number 143 completed questionnaires from 23 countries were returned.
IOM Report, 52. Results of the Working Group on Weather Radars
Part I: Severe Weather Recognition
Part II: Utilization of Doppler Radars for Monitoring Tropical Cyclones as one Element of the Global Monitoring System
IOM Report, 46. The WMO automatic digital barometer intercomparison
World Meteorological Organization (WMO) ; Ministerie van Verkeer en Waterstaat Koninklijk (Nederlands) - WMO, 1992 (WMO/TD-No. 474)The first WMO Automatic Digital Barometer Intercomparison was held in De Bilt, the Netherlands at the Royal Netherlands Meteorological Institute from begin 1989 to July 1991. Thirty-three instruments of 14 different designs were entered by nine Members of WMO 1). This report contains a description of the procedures followed, the data acquisition, the data analysis, and a technical description of the principles of the instruments. Finally the results of the intercomparison are given in a general table and the result per instrument in detail. The report also includes recommendations for operatio ...
IOM Report, 40. WMO International Radiosonde Comparison, Phase III, Dzhambul, USSR, 1989: final report
World Meteorological Organization (WMO) ; Kats A.; Kurnosenko Sergey; et al. - WMO, 1991 (WMO/TD-No. 451)
IOM Report, 41. The first WMO intercomparison of visibility measurements: final report
World Meteorological Organization (WMO) ; Jones D.W.; Ouldridge M.; et al. - WMO, 1990 (WMO/TD-No. 401)The first WMO International Visibility Intercomparison was held in the United Kingdom at Royal Air Force Finningley (WMO No 03360) from 17 October 1988 to 11 May 1989. Twenty-five visibility instruments of 18 different designs were entered by seven Members and comprised a backscatter meter, forward scatter meters and long and short baseline transmissometers. This report contains a complete description of the conduct of the Intercomparison, the part icipat ing instruments, the data recorded, and the principles, techniques and results of the analysis. The characteristics of each instrument are s ...
IOM Report, 39. Catalogue of national standard precipitation gauges
The present report contains tables with information on the national standard PGs of the WMO Members, including cross-sections of PGs, a brief review of the problems of accuracy of precipitation measurement. and of the results of wind tunnel tests regarding aerodynamical characteristics of PGs and correction procedures of the wind-induced error, wetting and evaporation.
IOM Report, 38. WMO International Hygrometer Intercomparison
The WMO International Hygrometer Intercomparison which was held at the Norwegian Meteorological Institute (DNMI) from February 1987 to March 1989, included 20 different humidity sensors, some with 2 or 3 equivalent units. All together 34 sensors were compared, representing products from 15 manufacturing firms. Eleven Member countries participated in the project. The instruments were exposed in a grass-covered area to the south of the institute buildings, -some sensors in open air, some inside an instrument screen specially constructed for the purpose. The instruments were exposed in accordance ...
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CD-Rom (12 Instruments and Observing Methods Reports) (2006) 
