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WWRP, 2018-1. Peer Review Report on Global Precipitation Enhancement Activities
WMO, 2018In order to be most beneficial, this review focuses exclusively on the scientific basis for precipitation enhancement. Hail suppression, fog dispersion or harvesting as well as subjects related to geoengineering were, thus, out of scope for this current assessment. In addition, to provide the most useful information, the report focuses on the two cloud types most seeded in the past: winter orographic cloud systems and convective cloud systems. The review is structured in five thematic chapters
Technical Guidelines for Regional WIGOS Centres on the WIGOS Data Quality Monitoring System
This publication is an Annex to Chapter 9 of the Guide to the WMO Integrated Global Observing System (WMO, 2018). It provides detailed technical guidance for Regional WMO Integrated Global Observing System (WIGOS) Centres (RWCs) to run the operational activities related to the WIGOS Data Quality Monitoring System (WDQMS), specifically for the surface stations of the Global Observing System (GOS) located on land (on the territories of WMO Regional Association (RA) Members). These guidelines describe the three main functions of WDQMS (monitoring, evaluation and incident management), as well as t ...
IOM Report, 130. Fourth WMO Regional Pyrheliometer Comparison of RA II, Jointly held with RA V
This report describes the intercomparison in detail: the instruments, the participants, the experimental setup, method and procedure, the data analysis technique used and the results. It is clear from the results that all of the participating instruments have been well maintained and remained stable since the previous intercomparison, which augers well for all radiation measurements within RA II and RA V. All participants were able to return home with newly derived WRR reduction factors for their instruments.
Commission for Instruments and Methods of Observations OPAG in situ Technologies and Intercomparisons - Expert Team on Aircraft-based Observations : Final Report
The second session of the CIMO Expert Team on Aircraft-based Observations took place over 16-19 April, 2018 at the WMO headquarters in Geneva, Switzerland. This was the 2nd meeting of the team during the current inter-sessional period of CIMO ahead of the upcoming session of CIMO in October, 2018 (CIMO-17), with the first session having been held in December 2015 in conjunction with the CBS Expert Team on Aircraft-Based Observing Systems second session. The chief focus for the session was for the team to report on progress and to undertake planning to finalise activities and tasks from its wor ...
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GCOS, 217. 21st Session of the Ocean Observations Panel for Climate (the GOOS Physics and Climate Panel) (OOPC-21)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2018
GCOS, 218. 23rd Session of the GCOS/WCRP Atmospheric Observation Panel for Climate (AOPC-23)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2018
GCOS, 216. 8th Session of the GTN-H Panel
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2018
IOM Report, 128. Interlaboratory Comparison in the field of Temperature, Humidity and Pressure, in the WMO Regional Association VI (MM-ILC-2015-THP)
The subject of this report is evaluation of the interlaboratory comparison in the field of measurement of temperature, humidity and pressure. The interlaboratory comparison was held within the framework of the MeteoMet 2 project, in the scope of proficiency testing scheme organized by the University of Ljubljana, Faculty of Electrical Engineering, Laboratory of Metrology and Quality (UL-FE/LMK), except pressure part. All the analysis were done in accordance with accredited procedures.
GCOS, 213. Report of the first meeting of the GCOS/CCl Task Team on Lightning Observations for Climate Applications (TTLOCA-1)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2018The meeting opened with a welcome to all participants from the Task Team on Lightning Observations for Climate Applications (TTLOCA) Chairman, Robert Holzworth. He introduced the panel and participating Global Climate Observing System (GCOS) secretariat staff, Valentin Aich and Caterina Tassone.
GAW Report, 243. Report of the Fifth Erythemal UV Radiometers Intercomparison
This report presents the background information, procedures and results of the intercomparison of erythemal UV sensors carried out at the Central Observatory of Buenos Aires (OCBA) in 2018 against reference radiometers calibrated at the World Radiation Center (PMOD/WRC) in Davos during 2017. In this way, the data obtained at the measurement sites will be standardized and will be comparable locally and globally. Twenty sensors were calibrated, belonging to Argentine monitoring and research institutions. The associated relative uncertainty of each sensor was also estimated.
ETR, 24. A Compendium of Topics to Support Management Development in National Meteorological and Hydrological Services
The present compendium of topics for management development is intended to help a NMHS establish management development programmes that meet the needs and culture of the organization. The provision of curricular (i.e. aims, learning outcomes and content), briefing notes, sources of further reading and discussion topics should make it easier to establish a bespoke programme rather than having to start from scratch. Even if an external agency provides the components of a management development programme, having the compendium should make it easier to specify what should be included. Regional Tra ...
IOM Report, 131. WMO Solid Precipitation Intercomparison Experiment (SPICE) (2012 - 2015)
The Solid Precipitation Intercomparison Experiment (SPICE) was conducted as an internationally coordinated project, initiated and guided by the Commission for Instruments and Methods of Observation (CIMO) of the World Meteorological Organization (WMO). The SPICE field experiments took place between 2013 and 2015, with a preparatory stage during the winter of 2012/13.
SPICE was carried out as a major international effort, and has been remarkable for the diversity of organizations which hosted SPICE tests, contributed with instruments, and were engaged in the data analysis and the derivat ...
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