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Guide to Instruments and Methods of Observation (WMO-No. 8)

Activity Areas (1)

Instruments and Methods of Observation Programme (IMOP)

PROCESS FOR UPDATING THE WMO-No. 8

Procedure for updating the Guide to Instruments and Methods of Observation (WMO-No. 8)

Guidelines for drafting updates/new editions of the WMO-No. 8

(to obtain the MS-Word version of specific chapters of the WMO-No.8 to propose updates, please contact: iruedi@wmo.int )

Found a typo/error in the WMO-No. 8? 

Inform the Secretariat by sending an e-mail describing the error to: iruedi@wmo.int 

 

LATEST VERSION OF THE WMO-No. 8

GUIDE TO INSTRUMENTS AND METHODS OF OBSERVATION
(WMO-No. 8), 2021/2018 edition

Translated versions in Arabic, Chinese, French, Spanish and Russian are available from the WMO Library.

(Note: Previous editions of the WMO-No. 8 are available from WMO Library by sending a request to library(at)wmo.int.) 

VOLUME I

MEASUREMENT OF METEOROLOGICAL VARIABLES
Chapter 1 General
Chapter 2 Measurement of temperature
Chapter 3 Measurement of atmospheric pressure
Chapter 4 Measurement of humidity
Chapter 5 Measurement of surface wind
Chapter 6 Measurement of precipitation
Chapter 7 Measurement of radiation
Chapter 8 Measurement of sunshine duration
Chapter 9 Measurement of visibility
Chapter 10 Measurement of evaporation
Chapter 11 Measurement of soil moisture
Chapter 12 Measurement of upper-air pressure, temperature and humidity
Chapter 13 Measurement of upper wind
Chapter 14 Observation of present and past weather; state of the ground
Chapter 15 Observation and measurement of clouds
Chapter 16 Measurement of atmospheric composition

VOLUME II

MEASUREMENT OF CRYOSPHERIC VARIABLES
Chapter 1 General
Chapter 2 Measurement of snow

VOLUME III

OBSERVING SYSTEMS
Chapter 1 Measurements at automatic weather stations
Chapter 2 Measurements and observations at aeronautical meteorological stations 
Chapter 3 Aircraft based observations
Chapter 4 Marine observation
Chapter 5 Special profiling techniques for the boundary layer and the troposphere
Chapter 6 Electromagnetic methods of lightning detection
Chapter 7 Radar measurements
Chapter 8 Balloon techniques
Chapter 9 Urban observations
Chapter 10 Road meteorological measurement

VOLUME IV

SPACE-BASED OBSERVATIONS
Chapter 1 Introduction
Chapter 2 Principles of Earth observation from space
Chapter 3 Remote-sensing instruments
Chapter 4 Satellite programmes
Chapter 5 Space-based observation of geophysical variables
Chapter 6 Calibration and validation
Chapter 7 Cross-cutting issues

VOLUME V

QUALITY ASSURANCE AND MANAGEMENT OF OBSERVING SYSTEMS
Chapter 1 Quality Management
Chapter 2 Sampling meteorological variables
Chapter 3 Data reduction
Chapter 4 Testing, calibration and intercomparison
Chapter 5 Training of instrument specialists