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CIMO Guide

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Instruments and Methods of Observation Programme (IMOP)

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PRELIMINARY 2018 EDITION OF THE CIMO GUIDE (WMO-No.8) What's NEW

The Preliminary 2018 Edition of the Guide to Meteorological Instruments and Methods of Observation (WMO-No. 8, CIMO Guide) is now available for consideration by Members.

To examine the text and send your detailed comments or suggestions please click here.

LATEST VERSION OF THE CIMO GUIDE

WMO GUIDE TO METEOROLOGICAL INSTRUMENTS AND METHODS OF OBSERVATION
(the CIMO Guide)

WMO-No. 8 (2014 edition, Updated in 2017)

(Note: Previous editions of the CIMO Guide are available from WMO Library, either by subscribing here, or by sending a request to library(at)wmo.int.)

CHAPTER

TITLE

  Preface
PART I

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

OBSERVING SYSTEMS (contents)
1 Measurements at automatic weather stations
2 Measurements and observations at aeronautical meteorological stations
3 Aircraft-based observations
4 Marine observations
5 Special profiling techniques for the boundary layer and the troposphere
6 Electromagnetic methods of lightning detection
7 Radar measurements
8 Balloon techniques
9 Urban observations
10 Road meteorological measurements
PART III 
SPACE-BASED OBSERVATIONS (contents)
1 Introduction
2 Principles of Earth observation from space
3 Remote-sensing instruments
4 Satellite programmes
5 Space-based observation of geophysical variables
6 Calibration and validation
7 Cross-cutting issues
PART IV
QUALITY ASSURANCE AND MANAGEMENT OF OBSERVING SYSTEMS (contents)
1 Quality management
2 Sampling meteorological variables
3 Data reduction
4 Testing, calibration and intercomparison
5 Training of instrument specialists

 

Note: The 2014 edition corresponds to the eighth edition.