Instruments and Methods of Observation Programme (IMOP)
The Instruments and Methods of Observation Programme (IMOP) sets technical standards, quality control procedures and guidance for the use of meteorological instruments and observation methods in order to promote development documentation and world-wide standardization.
A dramatic storm cloud formation rolls over a calm lake, with green fields and houses in the foreground under a sunset sky.

IMOP Purpose

The Instruments and Methods of Observation Programme (IMOP)

The purpose of the IMOP is to set technical standards and quality control procedures and to provide guidance for the use of meteorological instruments and observation methods. The objectives of this programme are: 

  • To promote development, documentation and the world-wide standardization of meteorological and related geophysical and environmental instruments and methods of observation to meet agreed user needs for data; and 
  • To ensure the effective and economic use of instruments and methods of observation under varying working conditions and in differing technical infrastructures, by providing technical standards, guidance material, performance specifications, technology transfer and training assistance.

The programme fosters development of new and improved instruments, observation methods, data reduction, and quality control techniques, and embraces all instrumentation including that used for remote sensing. It is carried out under the technical responsibility of the Standing Committee on Measurements, Instrumentation and Traceability (SC-MINT) of the Commission for Observation, Infrastructure and Information Systems (INFCOM).

Main Long-term Objectives

The main long-term objectives of the Instruments and Methods of Observation Programme are:

  •  To improve the quality and long-term stability of observations and measurements of meteorological and related environmental variables through the coordination and promotion of the use of efficient methods and technology to meet the requirements of operational and research applications; and 

  •  To enhance the effective and economic use of observing technology/systems through training and technology transfer in developing countries.

Implementation activities

Implementation components of the programme include:

  • Support to the implementation of guidelines and recommendations provided by SC-MINT and other relevant bodies to ensure enhancement of the quality and long-term stability of observations and measurements of meteorological and related environmental variables for operational applications and research;
  • Technology transfer and capacity building activities in the field of instruments and methods of observation through technical conferences and training workshops.

Vision for the future of environmental measurements -Annex to Resolution 5 (CIMO-17)

Under the vision for the WIGOS community and the environmental measurements it seeks to achieve:

Mission: Fit-for-purpose environmental measurements through leadership, standards and guidance.

Vision: The WIGOS measurement community is the recognized source of information and guidance on performing measurements for environmental intelligence.

Desired Outcomes:

(a)      The WIGOS measurement community are esteemed experts that gather and disseminate knowledge on measurements;

(b)      Users and providers understand measurement quality and how fit-for-purpose measurements are achieved;

(c)      Users and providers understand the importance of the measurement process in developing environmental intelligence.

(d)      Users and providers of Essential Climate Variables are committed to measurement traceability;

(e)      The potential, quality and performance characteristics of emerging measurement technologies and their products are documented in guidance material.

Strategies to achieve the Mission and Vision:

(a)      Collaborate effectively with users and providers of measurements;

(b)      Develop and promote the implementation of recognized measurement practices;

(c)      Develop and provide effective standards and guidance material;

(d)      Provide guidance for the implementation of new measurement technology; and

(e)      Identify and characterize the potential of emerging measurements.

Governance