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Manual on the WMO Integrated Global Observing System (WMO-No. 1160) : Annex VIII to the WMO Technical Regulations
This is the first edition of the Manual on the WMO Integrated Global Observing System (WMO-No. 1160), developed following the decision of the Sixteenth World Meteorological Congress to proceed with the implementation of that System (WIGOS). It was approved by the Seventeenth World Meteorological Congress.
The Manual was developed by the Executive Council through its Inter-Commission Coordination Group on WIGOS, specifically its Task Team on WIGOS Regulatory Material. It is the result of a collaborative approach involving all interested technical commissions under the leadership of the C ...
An Update on Low-cost Sensors for the Measurement of Atmospheric Composition, December 2020
Richard E. Peltier ; Núria Castell, Andrea L Clements, Tim Dye, Christoph Hüglin, Jesse H Kroll, Shih-Chun Candice Lung, Zhi Ning, Matthew Parsons, Michele Penza, Fabienne Reisen and Erika von Schneidemesser - WMO, 2021 (WMO-No. 1215)The report reflects on the state of the art in terms of accuracy, reliability and reproducibility of different sensors used for the measurements of reactive and greenhouse gases, and aerosols, along with the key analytical principles and what has been learned so far about low-cost sensors from both laboratory studies and real-world tests (up to August 2020). In some cases, scientific literature that had been accepted, but not yet published in a final form, was included in this review. Some national and international government documents were also included in this synthesis. The report includes ...
Guide to Wave Analysis and Forecasting
This publication is the outcome of the revision, expansion, and up-dating of the 1998 Guide to Wave Analysis and Forecasting. It is designed to enhance the provision of up-to-date information and guidance material on all aspects of the ocean-related activities of National Meteorological Services.
This 2018 (3rd edition) represents the latest updates, taking into account the dramatic improvements in wave modelling and observational capability over the last two decades. It also contains a web-based Dynamic part, describing operational wave models, also available on the WMO website ...
Руководство по анализу и прогнозированию волнения
This publication is the outcome of the revision, expansion, and up-dating of the 1998 Guide to Wave Analysis and Forecasting. It is designed to enhance the provision of up-to-date information and guidance material on all aspects of the ocean-related activities of National Meteorological Services.
This 2018 (3rd edition) represents the latest updates, taking into account the dramatic improvements in wave modelling and observational capability over the last two decades. It also contains a web-based Dynamic part, describing operational wave models, also available on the WMO website at http ...
Guía para el análisis y pronóstico de las olas
This publication is the outcome of the revision, expansion, and up-dating of the 1998 Guide to Wave Analysis and Forecasting. It is designed to enhance the provision of up-to-date information and guidance material on all aspects of the ocean-related activities of National Meteorological Services.
This 2018 (3rd edition) represents the latest updates, taking into account the dramatic improvements in wave modelling and observational capability over the last two decades. It also contains a web-based Dynamic part, describing operational wave models, also available on the WMO website at http ...
Guide de l'analyse et de la prévision des vagues
This publication is the outcome of the revision, expansion, and up-dating of the 1998 Guide to Wave Analysis and Forecasting. It is designed to enhance the provision of up-to-date information and guidance material on all aspects of the ocean-related activities of National Meteorological Services.
This 2018 (3rd edition) represents the latest updates, taking into account the dramatic improvements in wave modelling and observational capability over the last two decades. It also contains a web-based Dynamic part, describing operational wave models, also available on the WMO website at http ...
Instruments and Methods of Observation Programme (IMOP) Knowledge-Sharing Portal
Purpose of this web portal is to enable Members to share their experience and knowledge on Instruments and Methods of Observation, thus facilitating others' everyday work. The portal contains links to many useful resources shared by WMO Members.
GCOS, 226. GCOS Surface Reference Network (GSRN) : Justification, requirements, siting and instrumentation options
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2019This report is produced by the GSRN Task Team and provides a proposal for the establishment of a GCOS Surface Reference Network, with the support of the GCOS programme, relevant programmes at WMO and the Bureau International des Poids et Mesures (BIPM). It outlines the next steps required for the implementation of a GSRN: approval of the proposed GSRN by relevant WMO programmes, the GCOS programme and other sponsors, solicitation of offers to host and staff appropriately the proposed Lead Centre, and the selection of suitable sites for an initial GSRN.
Guía de Instrumentos y Métodos de Observación (OMM-N° 8)
La primera edición de la Guía de Instrumentos y Métodos de Observación Meteorológicos (OMM-Nº 8) se publicó en 1954 […].
La presente Guía es un recurso fundamental que describe la mayoría de los instrumentos, los sistemas y las técnicas utilizados regularmente, desde los más sencillos hasta los más complejos y sofisticados, pero no pretende abordar los métodos e instrumentos que se utilizan únicamente con fines de investigación. Tiene por objeto presentar las mejores prácticas, los procedimientos y las capacidades básicas de los instrumentos y sistemas a fin de ayudar a los Servicios Me ...
Руководство по приборам и методам наблюдений (ВМО-№ 8)
Первое издание Руководства по метеорологическим приборам и методам наблюдений (ВМО-№ 8) было опубликовано в 1954 г.[…].
Данное Руководство представляет собой ключевой ресурс, в котором содержится описание большинства приборов, систем и методов, используемых на регулярной основе: от простейших до характеризующихся высоким и высочайшим уровнем сложности, при этом не делается попытки описать методы и приборы, которые используются лишь для проведения научных исследований. Задача Руководства состоит в том, чтобы предоставить информацию о передовых методах, процедурах и базовых возможностях п ...
气象仪器与观测方法指南 (WMO-No. 8)
《WMO 气象仪器和观测方法指南》（WMO-No.8）第一版于1954 年出版，共十二章。此后，标准化仍然是仪器和观测方法委员会（CIMO）活动的一个关键问题。委员会不断审议指南的 内容，并确保在定期更新时纳入了反映技术的快速发展及其在气象仪器和观测方法领域的 实施的现代指导材料。
对于常规用途的大多数仪器、系统和技术，本指南是一项关键资源，提供了从最简单到最复 杂精细的描述，但不会涉及仅用于研究的方法和工具。指南的目的是给出最佳做法和程序，以及仪器和系统的基本能力，协助国家气象和水文部门或者其他感兴趣的运行观测系统的用 户编制他们的手册和程序，满足各自对测量和观察结果的特定需要。指南有意将标准化限制 在基本要求上，并将建议局限至给定仪器或测量系统不同配置最常见的一般特征，从而给 进一步发展留下广泛余地。对于有关与WIGOS 相关的仪器和观测方法的所有问题，本指南 都是权威参考。
دلیل أدوات وطرق الرصد - مطبوع المنظمة رقم 8
وصدرت الطبعة الأولى من دلیل أدوات وطرق رصد الأحوال الجویة (مطبوع المنظمة رقم 8) في عام 1954 وكانت تتألف من اثني عشر فصلاً. ومنذ ذلك الحین، ظلت مسألة التوحید القیاسي مصدر قلق ومن ھنا تواصل اللجنة استعراض محتویات .(CIMO) رئیسیاً بالنسبة لأنشطة لجنة أدوات وطرق الرصد الدلیل وتتأكد من أن عملیات التحدیث المنتظمة تشمل المواد الإرشادیة الحدیثة التي تعكس التطور السریع للتكنولوجیا وتنفیذھا في مجال أدوات وطرق رصد الأحوال الجویة
Guide des instruments et des méthodes d’observation (OMM-N° 8)
Organisation météorologique mondiale (OMM) - OMM, Éditions 2018 et 2021 (Éditions 2018 et 2021; OMM-No. 8)La première édition du Guide des instruments et des methodes d’observation meteorologiques (OMM-N° 8) a été publiée en 1954.
Guide to Instruments and Methods of Observation (WMO-No. 8)
The first edition of this guide was published in 1950.
Challenges in the Transition from Conventional to Automatic Meteorological Observing Networks for Long-term Climate Records
Guidelines for managing changes in climate observation programmes, with a set of recommended practices by which such changes can be managed, have already been published (WMO, 2007). This guidance note will focus on those AWSs likely to form part of long-term climate records. These will normally be owned by NMHSs or associated agencies, or sometimes by third parties (such as aviation, agriculture or road transport agencies) under standards endorsed by the NMHSs. Experience shows that private AWSs can be useful for some climate purposes (such as providing information on individual local-scale ex ...
Meteorological Instrument Performance Characteristics
NCAR's Earth Observing Laboratory ; The COMET Program ; Millersville University - The University Corporation for Atmospheric Research, 2017This advanced lesson explores the performance characteristics of instrumentation used for meteorological measurements. Static performance characteristics are examined in the context of calibration, which offers a means to determine an instrument's response. Dynamic performance characteristics, including first and second order inputs, are discussed using three classic examples: step or impulse, ramp or time varying, and oscillatory inputs. The lesson provides information about the effects of representativeness and regional homogeneity on measurements, and also describes processes for obtaining ...
JCOMM Technical Report, 63. Recommended Algorithms for the Computation of Marine Meteorological Variables
World Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC); United Nations Educational, Scientific and Cultural Organization (UNESCO) - WMO, 2015This publication presents a summarized version of the WMO No-8 information, focusing on the instruments used by the VOS, but breaks new ground in making specific recommendations (including providing software modules and test validation cases) on the algorithms to be used to compute “derived” variables.
International organizing committee for the WMO solid precipitation intercomparison experiment, fourth session : final report
This report provides a summary of the Fourth session of the International Organizing Committee (IOC) of the WMO Solid Precipitation Intercomparison Experiment (SPICE) that was held in Davos, Switzerland from 17 to 21 June 2013.
The IOC reviewed the outcomes of the first winter season focusing in particular on issues which were experienced on the different sites and which could affect data quality and data availability towards deciding on necessary modifications and clarifications on the overall set-up of the experiment and procedures to be followed within SPICE.
The IOC reviewed ...
International organizing committee for the WMO solid precipitation intercomparison experiment, third session : final report
This report provides a summary of the third session of the International Organizing Committee (IOC) of the WMO Solid Precipitation Intercomparison Experiment (SPICE) that was held in Brussels, Belgium on 15 October 2012. The IOC reviewed the proposal from NCAR to provide the data archive for level 1 and 2a data and approved it. It made a number of recommendations for the finalization and improvement of the proposal relevant for example to the data format, interaction with sites, and provision of maintenance information by the sites. The IOC reviewed the status of preparation of all northern he ...
International organizing committee for the WMO solid precipitation intercomparison experiment, second session : final report
This report provides a summary of the second session of the International Organizing Committee (IOC) of the WMO Solid Precipitation Intercomparison Experiment (SPICE) that was held in Boulder, USA, from 11 to 15 June 2012. The IOC reviewed the outcomes of the informal Pre-SPICE experiment that took place during the winter of 2011/12 in the interest of assessing the principles of the formal intercomparison and to address, in particular, the configuration of a working field reference using an automatic gauge. The IOC reviewed a number of aspects dealing with the configuration and operatio ...
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Evaluation of the accuracy of analysis tools for atmospheric new particle formation
Atmospheric Chemistry and Physics (ACP), Vol. 11. N° 7. Korhonen H.; Sihto S.-L.; Kerminen V.-M.; et al. - Copernicus GmbH, 2011Several mathematical tools have been developed in recent years to analyze new particle formation rates and to estimate nucleation rates and mechanisms at sub-3 nm sizes from atmospheric aerosol data. Here we evaluate these analysis tools using 1239 numerical nucleation events for which the nucleation mechanism and formation rates were known exactly. The accuracy of the estimates of particle formation rate at 3 nm (J3) showed significant sensitivity to the details of the analysis, i.e. form of equations used and assumptions made about the initial size of nucleating clusters, with the fraction o ...
IOM Report, 106. WMO Field Intercomparison of Thermometer Screens/Shields and Humidity Measuring Instruments : Ghardaïa, Algeria, November 2008 – October 2009
The WMO Combined Intercomparison of Temperature Screens/Shields in Conjunction with Humidity Measuring Instruments was carried out in Ghardaïa, Algeria from November 2008 to October 2009, at the kind invitation of the Algerian Meteorological Service and under the leadership of CIMO. This intercomparison allowed testing the performance of the instruments in desert conditions, in a dry, hot and dusty environment. It was planned to carry out a follow-up intercomparison of similar instruments in an arctic environment at a later stage. The main objectives of this intercomparison were to gain knowle ...
JCOMM Meeting Report, 87. JCOMM Marine Instrumentation Workshop for the Asia Pacific Region - final report
The JCOMM Marine Instrumentation Workshop for the Asia Pacific Region was held in Tianjin, China, from 11 to 13 July 2011 at the kind invitation of the State Oceanic Administration (SOA) and the National Centre of Ocean Standards and Metrology (NCOSM) of China.
The workshop recalled the importance of ocean observations to achieve socio-economical benefits at the global, regional, national, and local (e.g. Tianjin city) levels by addressing the requirements of WMO and IOC Applications, including the Global Framework for Climate Services (GFCS), and working in the multi-disciplinary fram ...
IOM Report, 101. Guidance on Instrumentation for Calibration Laboratories, including Regional Instrument Centres
Users of meteorological observations have increasing needs for high quality meteorological and hydrological data. The traceability of these data to the International System of Units (SI) standards is needed to ensure their quality and to meet the users’ requirements. Regional Instrument Centres, as well as NMHSs calibration laboratories are essential in ensuring data quality by providing calibration of the standards and traceability to SI. CIMOXIV recognized that RICs needed guidance on how to build calibration laboratories and purchase calibration equipment to strengthen their capabilities. T ...
JCOMM Technical Report, 53. The WMO-IOC Network of Regional Marine Instrument Centres (RMICS) : revision 1
World Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2010 (WMO/TD-No. 1564)
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Statement on the occasion of the General Assembly Meeting of the Association of Hydro-meteorological Equipment Industry
Obasi G.O.P; World Meteorological Organization (WMO) - WMO, 2003 (SG's lectures, speeches, statements-No. 231)
Operational hydrology report (OHR), 42. Meteorological systems for hydrological purposes
This report consists of seven chapters covering a wide range of issues on the relationship between meteorological systems and their applications for hydrological purposes. The objective of this report is to present the need for meteorological systems for hydrological purposes.
Manual on instrumentation and operations for automatic weather stations for agrometeorological application
World Meteorological Organization (WMO) ; Institute of Agrometeorology and Environmental Analysis for Agriculture (IATA); Regional Meteorological Training Center (CNR) - WMO, 2000
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