IOM Report, 99. WMO Field Intercomparison of Rainfall Intensity Gauges

World Meteorological Organization (WMO) ; Monesi C.; Lanza L.; et al. - WMO, 2009 (WMO/TD-No. 1504)

The WMO Field Intercomparison of Rainfall Intensity Gauges was carried out in Vigna di Valle, Italy from October 2007 to April 2009, at the kind invitation of the Italian Meteorological Service. This intercomparison is following up on the Laboratory Intercomparison of Rainfall Intensity Gauges. CIMOXIV recommended that welldefined and accepted reference instruments and procedures were needed for the field intercomparison. CIMOXIV agreed that such reference might be based on a set of high quality devices applying different measuring techniques and had adopted a recommendation to that effect. Th ...

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 WMO Field Intercomparison of Rainfall Intensity Gauges

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World Meteorological Organization (WMO) ; C. Monesi ; L. Lanza ; L. Stagi ; E. Lanzinger

Published by: WMO ; 2009

The WMO Field Intercomparison of Rainfall Intensity Gauges was carried out in Vigna di Valle, Italy from October 2007 to April 2009, at the kind invitation of the Italian Meteorological Service. This intercomparison is following up on the Laboratory Intercomparison of Rainfall Intensity Gauges. CIMOXIV recommended that welldefined and accepted reference instruments and procedures were needed for the field intercomparison. CIMOXIV agreed that such reference might be based on a set of high quality devices applying different measuring techniques and had adopted a recommendation to that effect. The main objective of this intercomparison was to intercompare the performance of in situ rainfall intensity instruments of different measuring principles in high rainfall intensity conditions. An International Organizing Committee was set up to determine and agree on the rules of the intercomparison and to support its preparation and execution. The IOC was also tasked to agree on the procedures used for the evaluation of the results and to review and agree on their presentation in the final report of the intercomparison. This report presents in a detailed manner the procedure that was adopted to determine the reference rainfall intensity, based on the measurements of 3 instruments placed in a pit. It also contains datasheets for each of the participating instruments, which provide exhaustive information on their performances throughout the intercomparison period in the field, as well as under laboratory conditions. The final conclusions of the report highlight the challenges that this type of measurements represents due to the high variability of rainfall intensity at a 1minute time scale. A number of recommendations were drawn from the results and address topics such as how to make best use of existing instruments, how to improve the design and documentation of the instruments as well as matters like the standardization of rainfall intensity measurements. Consequently, they are relevant to users, manufacturers and the meteorological community as a whole.

Collection(s) and Series: WMO/TD- No. 1504; IOM Report- No. 99

Language(s): English

Format: CD, DVD, Digital (Free)

Tags: Precipitation forecasting ; Instruments and Methods of Observation Programme (IMOP) Add tag

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 CIMO IOM Reports No.95 to 103 (2010) 

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Understanding the predictabilty and seasonal rainfall variability patterns during OND and JFM over DRCongo

Mbuyi Kabamba Peter - African Climate Desk, 2009

The objective of this work is thus to enhance an understanding on the regional and global patterns that may contribute to the knowledge of the variability and predictability of OND and JFM rains season over DRC for a better prediction of the rains season and also to improve the DRC seasonal models for a better decisions makers, and also assist potentials users on their needs.

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 Understanding the predictabilty and seasonal rainfall variability patterns during OND and JFM over DRCongo

Peter Mbuyi Kabamba

Published by: African Climate Desk ; 2009

The objective of this work is thus to enhance an understanding on the regional and global patterns that may contribute to the knowledge of the variability and predictability of OND and JFM rains season over DRC for a better prediction of the rains season and also to improve the DRC seasonal models for a better decisions makers, and also assist potentials users on their needs.

Notes: If you wish to download the full text, please contact library(at)wmo.int (Please replace (at) by @).

Language(s): English

Format: Digital (Available online for logged-in users)

Tags: Research ; Seasonal change ; Precipitation forecasting ; Democratic Republic of Congo ; Thesis - WMO Fellowship Division Add tag

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WCRP, 128. Assessment of global precipitation products : a project of the World Climate Research Programme Global Energy and Water Cycle Experiment (GEWEX) Radiation Panel

World Meteorological Organization (WMO) ; Levizzani Vincenzo; United Nations Educational, Scientific and Cultural Organization (UNESCO); et al. - WMO, 2008 (WMO/TD-No. 1430)

This report is a synthesis of the current state of knowledge in measurements of global precipitation, a major component of the global water and energy cycle that influences significantly the Earth’s climate system, and in turn is affected by the climate system variability and change. It is a comprehensive assessment of the current global precipitation data records which have been assembled by combining observations from space-based and in situ measurements. These long-term records include observations over the land and oceans for a period of 25 years. The report describes in detail how these p ...

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 Assessment of global precipitation products: a project of the World Climate Research Programme Global Energy and Water Cycle Experiment (GEWEX) Radiation Panel

  Available online: http://www.wcrp-climate.org/documents/AssessmentGlobalPrecipitationReport.pdf

World Meteorological Organization (WMO) ; Vincenzo Levizzani ; United Nations Educational, Scientific and Cultural Organization ; Intergovernmental Oceanographic Commission ; International Council for Science

Published by: WMO ; 2008

This report is a synthesis of the current state of knowledge in measurements of global precipitation, a major component of the global water and energy cycle that influences significantly the Earth’s climate system, and in turn is affected by the climate system variability and change. It is a comprehensive assessment of the current global precipitation data records which have been assembled by combining observations from space-based and in situ measurements. These long-term records include observations over the land and oceans for a period of 25 years. The report describes in detail how these precipitation records are developed, the underlying assumptions in sampling and processing procedures, their spatial and temporal resolution, and the potential sources of errors and anomalies in these records.

Collection(s) and Series: WMO/TD- No. 1430; WCRP- No. 128

Language(s): English

Format: CD, DVD, Digital (Free)

Tags: Climate ; Climate model ; Precipitation forecasting ; Modelling ; WCRP 128 Add tag

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Towards improved seasonal rainfall forecast over Malawi : research report for WMO Class II 2005 to 2006

World Meteorological Organization (WMO) ; Institute for Meteorological Training and Research (IMTR) - IMTR, 2006

Extreme climate events such as floods and droughts have devastating socio-economic impacts associated with food shortages, famine, lack of energy, water, shelter and other major basic needs. Because these events are recurrent in nature, effective, accurate and timely prediction and early warning of these events can enable Governments and other stakeholders to put into motion appropriate actions for mitigating or alleviating their adverse impacts. In this study, the relationship between seasonal rainfall and global Sea Surface Temperature anomalies was examined. The analysis was based primarily ...

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 Towards improved seasonal rainfall forecast over Malawi: research report for WMO Class II 2005 to 2006

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World Meteorological Organization (WMO) ; Institute for Meteorological Training and Research

Published by: IMTR ; 2006

Extreme climate events such as floods and droughts have devastating socio-economic impacts associated with food shortages, famine, lack of energy, water, shelter and other major basic needs. Because these events are recurrent in nature, effective, accurate and timely prediction and early warning of these events can enable Governments and other stakeholders to put into motion appropriate actions for mitigating or alleviating their adverse impacts. In this study, the relationship between seasonal rainfall and global Sea Surface Temperature anomalies was examined. The analysis was based primarily on empirical statistical modeling using observed rainfall data from 9 meteorological stations spread over the entire Malawi spanning 35 years i.e. 1970-2005. The missing data in some stations were estimated using correlation and regression methods while single mass curve technique was employed to check the homogeneity of the rainfall data for all stations. Other methods employed in the study include correlation analysis, standardization, regression analysis, analysis of variance (ANOVA) and model verification technique.

Notes: If you wish to download the full text, please contact library(at)wmo.int (Please replace (at) by @).

Language(s): English

Format: Digital (Available online for logged-in users) (ill., charts, maps)

Tags: Weather ; Early warning systems ; Seasonal forecast ; Precipitation forecasting ; Malawi ; Thesis - WMO Fellowship Division Add tag

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IOM Report, 84. The WMO Laboratory Intercomparison of Rainfall Intensity Gauges: final report

World Meteorological Organization (WMO) ; Leroy Michel; Alexandropoulos C.; et al. - WMO, 2006 (WMO/TD-No. 1304)

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 The WMO Laboratory Intercomparison of Rainfall Intensity Gauges: final report

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World Meteorological Organization (WMO) ; Michel Leroy ; C. Alexandropoulos ; L. Stagi ; W. Wauben

Event: WMO Laboratory Intercomparison of Rainfall Intensity Gauges (September 2004 – September 2005; Trappes (France) - Genoa (Italy) - De Bilt (Netherlands))

Published by: WMO ; 2006

Collection(s) and Series: WMO/TD- No. 1304; IOM Report- No. 84

Language(s): English

Format: CD, DVD, Digital (Free)

Tags: Observations ; Precipitation forecasting ; Meteorological instrument ; Instruments and Methods of Observation Programme (IMOP) ; IOM 84 Add tag

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 CD-Rom (12 Instruments and Observing Methods Reports) (2006) 

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TCP, 42. Estimating the amount of rainfall associated with tropical cyclones using satellite techniques

Barrett Eric Charles; World Meteorological Organization (WMO) - WMO, 1999 (WMO/TD-No. 975)

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PCT, 42. Técnicas de satélite para estimar la cantidad de lluvia asociada a los ciclones tropicales

OMM, 1999 (OMM/DT (ES)-No. 975)

Spanish

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WCRP, 81. Analysis methods of precipitation on a global scale : report of a GEWEX Workshop

World Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 1993 (WMO/TD-No. 558)

English

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WCRP, 60. The Global Precipitation Climatology Project : report of the fifth session of the International Working Group on Data Management

Global Precipitation Climatology Project ; World Meteorological Organization (WMO) - WMO, 1991 (WMO/TD-No. 436)

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WCRP. Global Precipitation Climatology Project: plan for the calibration and validation of satellite precipitation measurements

World Meteorological Organization (WMO) - WMO, 1990 (WMO/TD-No. 335)

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IOM Report, 39. Catalogue of national standard precipitation gauges

World Meteorological Organization (WMO) ; Klemm S. - WMO, 1989 (WMO/TD-No. 313)

The present report contains tables with information on the national standard PGs of the WMO Members, including cross-sections of PGs, a brief review of the problems of accuracy of precipitation measurement. and of the results of wind tunnel tests regarding aerodynamical characteristics of PGs and correction procedures of the wind-induced error, wetting and evaporation.

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Precipitation measurement : WMO/IAHS/ETH Workshop on precipitation measurement

World Meteorological Organization (WMO) ; International Association of Hydrological Sciences (IAHS) - Swiss Federal Institute of Technology, 1989

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IOM Report, 48. International workshop on precipitation measurements

World Meteorological Organization (WMO) - WMO, 1989 (WMO/TD-No. 328)

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Technical report to the Commission for Hydrology, 26. Application of satellite data for estimation of precipitation

World Meteorological Organization (WMO) - WMO, 1988 (WMO/TD-No. 300)

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WCP, 100. Review of requirements for area-averaged precipitation data, surface-based and space-based estimation techniques, space and time sampling, accuracy and error :data exchange

World Meteorological Organization (WMO) - WMO, 1985 (WMO/TD-No. 115)

English

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